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* * * * * C/2004 Q2 (Machholz) * * * * *
lightcurve and prediscovery images , discovery story and more images Year Mn Day MM Mag Ref Scope Pwr coma DC tail p.a. Obs Site 2006 1 8.85 S[13.9 AU 40.0L 257 !0.4 YOS Ibaraki, Japan (Appearing in the morning sky, and I tried to see it. The limiting magnitude was not deep due to the low altitude, and I could not see the comet.) 2005 9 3.857 S 12.5 AU 31.0J 109 3 1/ DIJ Lauwersoog 2005 9 3.850 S 12.6 AU 31.0J 109 1.6 1/ BOU Lauwersoog 2005 8 29.87 S 12.6 HS 40.7L 116 1.4 3 BIV Ablis 2005 8 28.92 S 11.5 TK 20.3T 133 2 3 GON Alto del Castro - Aralla, León 2005 8 5.93 S 12.0 TK 40.7L 58 2.0 3 BIV Valdrôme 2005 8 5.908 S 11.9 AU 31.0J 89 2 1/ BOU Sint Annen 2005 8 5.51 S 11.4 TJ 40.0L 144 1.3 2/ YOS Gunma, Japan (I estimated it so faint as 12.7 mag on July 28. But unexpectedly, it is much brighter and clearly visible still now with a fine clear sky.) 2005 8 4.94 S 12.0 TK 40.7L 58 2.5 BIV Valdrôme 2005 8 3.89 S 11.9 TK 40.7L 58 2.5 4 BIV Valdrôme 2005 8 2.97 S 11.1 TK 20.3T 100 2.5 4 GON Alto del Castro - Aralla, León 2005 8 2.922 S 12.4 AU 31.0J 89 1.5 1 DIJ Sint Annen 2005 8 2.918 S 11.9 AU 31.0J 89 1.5 1 BOU Sint Annen 2005 7 31.93 S 11.8 TK 40.7L 58 3.5 3 BIV Valdrôme 2005 7 30.89 S 11.6 TK 40.7L 58 3.5 3 BIV Valdrôme 2005 7 29.93 S 10.9 TK 20.3T 100 3 4 GON Alto del Trichero - Soto y Amío, León 2005 7 28.48 S 12.7 AU 40.0L 144 1.5 2 YOS Gunma, Japan (Very faint surprisingly. The sky was dim, so maybe I viewed only the central part.) 2005 7 13.963 S 11.3 AU 31.0J 58 2.0 2 DIJ Revest-du-Bion, France 2005 7 13.961 S 11.4 AU 31.0J 58 2.5 2 BOU Revest-du-Bion, France 2005 7 12.946 S 11.3 AU 31.0J 58 2.1 0/ DIJ Revest-du-Bion, France 2005 7 12.944 S 11.3 AU 31.0J 58 2.5 2 BOU Revest-du-Bion, France 2005 7 12.02 S 10.7 TK 20.3T 77 3 3 GON Alto del Trichero - Soto y Amío, León 2005 7 10.957 S 11.0 TA 31.0J 58 1.4 2/ DIJ Revest-du-Bion, France 2005 7 10.956 S 11.3 TA 31.0J 58 3 3 BOU Revest-du-Bion, France 2005 7 10.94 S 11.5 TK 20.3T 67 2.7 4 BIV Pico-Veleta, Spain 2005 7 8.96 S 11.4 TK 20.3T 67 2.5 3 BIV Pico-Veleta, Spain 2005 7 8.924 S 11.1 TA 31.0J 58 2.5 3/ DIJ Revest-du-Bion, France 2005 7 8.922 S 11.1 TA 31.0J 58 3 2/ BOU Revest-du-Bion, France 2005 7 7.97 S 10.7 TK 20.3T 77 3 3 GON Alto del Trichero - Soto y Amío, León 2005 7 6.94 S 11.0 TK 20.3T 67 3 3 BIV Pico-Veleta, Spain 2005 7 6.915 S 11.0 TA 31.0J 58 2.8 3 DIJ Revest-du-Bion, France 2005 7 6.915 S 10.9 TA 31.0J 58 3 3 BOU Revest-du-Bion, France 2005 7 6.00 S 10.7 TK 20.3T 77 3 3 GON Alto del Trichero - Soto y Amío, León 2005 7 5.944 S 10.6 TA 31.0J 58 3.3 2/ DIJ Revest-du-Bion, France 2005 7 5.942 S 10.9 TA 31.0J 58 3.3 2/ BOU Revest-du-Bion, France 2005 7 4.95 S 11.3 TK 20.3T 67 3 3 BIV Pico-Veleta, Spain 2005 7 3.02 S 10.6 TK 20.3T 77 3 3 GON Alto del Castro - Aralla, León 2005 7 2.96 S 11.1 TK 20.3T 67 4 4 BIV Pico-Veleta, Spain 2005 7 1.98 S 10.6 TK 20.3T 77 3 4 GON Alto del Castro - Aralla, León 2005 7 1.94 S 11.3 TK 20.3T 67 4 3 BIV Pico-Veleta, Spain 2005 6 27.963 S 10.5 TK 25.4J 47 3.5 1 DIJ Sint Annen 2005 6 27.962 S 10.7 TK 25.4J 47 3 2 BOU Sint Annen 2005 6 26.98 S 10.6 TK 20.3T 77 3.5 4 GON Alto del Castro - Aralla, León 2005 6 18.990 S 10.7 TK 25.0L 53 2.0 2 LOO Genk 2005 6 16.06 S 9.9 TK 10.0B 25 6 2 GON Alto del Castro - Aralla, León 2005 6 16.05 S 10.2 TK 20.3T 77 5 3 GON Alto del Castro - Aralla, León 2005 6 14.99 S 10.3 TK 40.7L 58 4 3 BIV Ablis 2005 6 14.975 S 10.4 TK 25.4J 47 2.3 1 DIJ Sint Annen 2005 6 14.974 S 10.0 TK 25.4J 47 & 4 2 BOU Sint Annen 2005 6 12.01 S 10.3 TK 40.7L 58 5 3 BIV Ablis 2005 6 10.99 S 10.5 TK 40.7L 58 3.5 4 BIV Ablis 2005 6 10.03 S 9.4 TK 8.0B 11 6 3 GON Alto del Castro - Aralla, León 2005 6 10.02 S 9.8 TK 20.3T 77 5 3 GON Alto del Castro - Aralla, León 2005 6 8.98 S 10.4 TK 25.6L 42 4 4 BIV Ablis 2005 6 8.95 S 9.5 TK 10.0B 25 7 3 GON Alto del Castro - Aralla, León 2005 6 7.99 S 10.0 TK 40.7L 58 4 4 BIV Ablis 2005 6 8.94 S 9.7 TK 20.3T 77 6 3 GON Alto del Castro - Aralla, León 2005 6 6.920 S 10.7 TK 25.0L 53 2.8 2 LOO Genk 2005 6 6.50 S 9.8 TJ 40.0L 36 6.5 4/ YOS Gunma, Japan (It looked wide still now. Larger than 9P, and the central condensation was a bit stronger than 9P.) 2005 6 5.95 S 9.4 TK 10.0B 25 7 3 GON Alto del Castro - Aralla, León 2005 6 5.94 S 9.6 TK 20.3T 77 6 3 GON Alto del Castro - Aralla, León 2005 6 5.55 S 10.5:TJ 40.0L 75 3.1 5 YOS Gunma, Japan (Through foggy sky, and inaccurate.) 2005 6 3.03 S 9.7 TK 5.0B 7 5 5 BIV Ablis 2005 6 3.01 S 9.9 TK 40.7L 58 4.5 4 BIV Ablis 2005 6 1.97 S 9.2 TK 10.0B 25 7 3 GON Alto del Trichero - Soto y Amío, León 2005 6 1.96 S 9.4 TK 20.3T 77 6 3 GON Alto del Trichero - Soto y Amío, León 2005 5 31.957 S 9.6 TK 30.5T 56 & 5 2/ COM Roden 2005 5 31.01 S 9.8 TK 5.0B 7 5 3 BIV Ablis 2005 5 30.99 S 10.1 TK 40.7L 58 4.5 4 BIV Ablis 2005 5 30.979 S 9.6 TK 25.0L 53 3.0 3 LOO Genk 2005 5 30.94 S 9.3 TK 20.3T 77 6 3 GON Gamoniteiro - Sierra del Aramo, Asturias 2005 5 27.96 S 9.8 TK 5.0B 7 5 3 BIV Ablis 2005 5 27.94 S 9.9 TK 40.7L 58 4.5 5 BIV Ablis 2005 5 27.937 S 9.9 TK 25.0L 53 2.0 3 LOO Genk 2005 5 26.94 S 8.8 TK 10.0B 25 8 3 0.2 280 GON Sierra del Aramo, Asturias 2005 5 25.94 S 9.6 TK 5.0B 7 5 3 BIV Ablis 2005 5 25.93 S 9.8 TK 40.7L 58 5 4 BIV Ablis 2005 5 25.92 S 8.8 TK 10.0B 25 6 3 GON Gamoniteiro - Sierra del Aramo, Asturias 2005 5 18.13 S 8.6 TK 5.0B 7 8 3 GON Alto del Trichero - Soto y Amío, León 2005 5 13.96 S 8.9 TK 20.3T 83 5.5 2 GRA Fjellhamar (Diffuse coma. Faintly seen in nautical twilight [Sun 11.5 deg. below true horizon]. Probably my last visual observation of this comet from my home location due to all-night bright twilight until the end of July.) 2005 5 13.008 M 8.6 TK 8.0B 15 7.5 3/ DIJ Sint Annen 2005 5 13.006 S 8.6 TK 8.0B 15 7 3/ BOU Sint Annen 2005 5 12.882 S 9.4 TK 25.0L 53 3.5 3 LOO Genk 2005 5 12.06 S 8.8 TK 5.0B 7 7 3 BIV Poigny-la-Forêt 2005 5 12.05 S 8.8 TK 40.7L 58 5 4 BIV Poigny-la-Forêt (At 233x, jets in p.a. 70 and 100 deg., cent. cond. at m=13.7.) 2005 5 11.980 S 9.2 TK 8.0B 15 &5.0 3 COM Roden 2005 5 11.96 S 8.7 TK 10.0R 25 6 2/ GRA Fjellhamar (Faintly visible in twilight [Solar altitude -11.9 deg].) 2005 5 11.932 M 8.5 TK 15.6L 24 6.5 4/ BOU Sint Annen 2005 5 11.904 S 9.3 TK 25.0L 53 4.0 4 LOO Genk 2005 5 9.955 S 8.9 TK 25.0L 53 5.0 4 LOO Genk 2005 5 8.913 M 8.4 TK 15.6L 24 7 4/ BOU Sint Annen 2005 5 8.90 S 8.8 TK 5.0B 7 6 3 BIV Pico-Veleta, Spain 2005 5 8.08 S 8.7 TK 5.0B 7 6 3 BIV Pico-Veleta, Spain 2005 5 8.07 S 8.8 TK 20.3T 67 6 4 BIV Pico-Veleta, Spain (At 160x, jets in p.a. 80 and 105 deg., cent. cond. at m=14.0.) 2005 5 8.040 M 8.5 TK 8.0B 15 7.5 4 DIJ Sint Annen 2005 5 8.038 M 8.4 TK 8.0B 15 8 3/ BOU Sint Annen 2005 5 7.06 S 8.6 TK 20.3T 67 6 5 BIV Pico-Veleta, Spain 2005 5 7.06 S 8.6 TK 5.0B 7 7 4 BIV Pico-Veleta, Spain 2005 5 7.03 S 8.3 TK 5.0B 7 8 3 GON Sierra del Aramo, Asturias 2005 5 7.02 S 8.4 TK 10.0B 25 7 3 GON Sierra del Aramo, Asturias 2005 5 7.01 M 8.6 TK 10.0R 25 7 3/ GRA Fjellhamar (Coma appeared somewhat fainter M51, but brighter than M97. Some twilight [Sun -12.2 deg below horizon], but transparent sky. NEL = 5.5.) 2005 5 6.897 M 8.4 TK 15.6L 24 6 4/ BOU Sint Annen 2005 5 6.895 M 8.5 TK 15.6L 24 6.0 4/ DIJ Sint Annen 2005 5 6.885 S 8.8 TK 8.0B 15 & 8 2 COM Roden 2005 5 5.97 M 8.5 TK 10.0R 25 7 3/ GRA Fjellhamar 2005 5 5.97 S 8.5 TK 5.0B 7 6 4 BIV Pico-Veleta, Spain 2005 5 5.95 S 8.6 TK 20.3T 67 6 5 BIV Pico-Veleta, Spain 2005 5 4.96 M 8.5 TK 10.0R 25 7 3 GRA Fjellhamar 2005 5 4.901 M 8.3 TK 15.6L 24 6.5 3/ BOU Sint Annen 2005 5 4.85 S 8.5 TK 5.0B 7 7 5 BIV Pico-Veleta, Spain 2005 5 4.50 S 8.0 TJ 7.0R 10 7 4 YOS Gunma, Japan (I felt it was strongly condensed on May 3, but it became fainter and more diffuse than previous day. However, my magnitude estimation became almost same, so it was probably just because of the difference of the sky condition.) 2005 5 4.49 S 8.4 TJ 40.0L 36 7 5 YOS Gunma, Japan 2005 5 3.99 S 8.4 TK 5.0B 7 7 5 BIV Pico-Veleta, Spain 2005 5 3.98 S 8.7 TK 20.3T 67 6.5 5 BIV Pico-Veleta, Spain 2005 5 3.934 S 8.6 TK 8.0B 15 & 8 3/ COM Roden 2005 5 3.913 M 8.4 TK 8.0B 15 8 3/ DIJ Sint Annen 2005 5 3.910 M 8.3 TK 8.0B 15 7 4 BOU Sint Annen 2005 5 3.53 S 8.3 TJ 40.0L 36 7 6 YOS Gunma, Japan 2005 5 3.53 S 8.1 TJ 7.0R 10 8 6 YOS Gunma, Japan (Getting fainter and smaller, but still bright and well condensed.) 2005 5 2.917 M 8.3 TK 8.0B 15 7 4 BOU Sint Annen 2005 5 2.07 S 8.0 TK 5.0B 7 9 3 GON Sierra del Aramo, Asturias 2005 4 30.951 S 8.4 TK 25.0L 53 4.5 4 LOO Genk 2005 4 30.94 S 8.4 TK 40.7L 58 6 4 BIV Poigny-la-Forêt 2005 4 30.94 S 8.3 TK 5.0B 7 7 4 BIV Poigny-la-Forêt 2005 4 29.91 S 8.3 TK 40.7L 58 6 4 BIV Poigny-la-Forêt 2005 4 29.90 S 8.1 TK 5.0B 7 8 4 BIV Poigny-la-Forêt 2005 4 28.98 S 7.9 TK 5.0B 7 9 3 GON Sierra del Aramo, Asturias 2004 4 28.96 M 8.2 TK 10.0R 25 7 4 GRA Fjellhamar 2005 4 27.98 M 8.2 TK 7.0R 20 7 3/ GRA Fjellhamar 2005 4 27.934 M 8.5 TK 8.0B 15 7 4 DIJ Sint Annen 2004 4 27.928 M 8.2 TK 8.0B 15 8 4 BOU Sint Annen 2005 4 26.99 M 8.2 TK 10.0R 25 8 4 GRA Fjellhamar (Appearance quite similar to M51.) 2005 4 21.012 S 8.0 TK 6.0B 15 9 1/ DIJ Groningen 2005 4 20.993 S 7.8 TK 8.0B 15 6 3 BOU Groningen 2005 4 19.93 S 7.8 TK 5.0B 7 & 9 4 SKI Hønefoss (The coma was relatively diffuse and not to easy to see in moonlight. NEL = 5.5 near comet.) 2005 4 19.03 M 7.7 TK 5.0B 7 8 3 GRA Fjellhamar 2005 4 16.998 S 7.7 TK 6.0B 15 10 2/ DIJ Groningen 2005 4 14.09 M 7.4 TK 5.0B 7 10 3 GRA Fjellhamar 2005 4 13.03 M 7.3 TK 5.0B 7 11 4 GRA Fjellhamar 2005 4 12.13 S 7.3 TK 5.0B 7 10 4 GON Alto del Trichero - Soto y Amío, León 2005 4 12.02 M 7.2 TK 5.0B 7 12 4 GRA Fjellhamar (Diffuse coma. Somewhat fainter and smaller than M81. NEL = 5.7.) 2005 4 11.963 S 7.7 TK 8.0B 15 & 7 3 COM Roden 2005 4 11.944 S 7.5 TK 5.0B 10 7 4 GIL Noordwijk aan Zee 2005 4 11.940 M 7.2 TK 6.0B 15 9 3/ DIJ Noorddijk 2005 4 11.859 S 7.4 TK 8.0B 15 8 3/ BOU Sint Annen 2005 4 11.04 S 7.4 TK 5.0B 7 10 3 GRA Fjellhamar 2005 4 10.85 S 7.5 TK 5.0B 7 9 5 BIV Poigny-la-Forêt 2005 4 10.02 S 7.2 TK 5.0B 7 12 3 GON Alto del Trichero - Soto y Amío, León 2005 4 9.84 S 7.4 TK 5.0B 7 8 5 BIV Poigny-la-Forêt 2005 4 7.872 M 7.1 TK 6.0B 15 8 4 DIJ Sint Annen 2005 4 7.870 M 7.3 TK 8.0B 15 8 4 BOU Sint Annen 2005 4 6.06 M 7.2 TK 5.0B 7 10 3 GRA Fjellhamar (Slightly fainter than M81, brighter than M51. Transparent sky NEL = 5.7.) 2005 4 5.919 M 7.1 TK 6.0B 15 12 4 DIJ Noorddijk 2005 4 5.860 S 7.2 TK 8.0B 15 9 3/ BOU Sint Annen 2005 4 5.851 S 7.4 TK 8.0B 15 & 8 4 COM Roden (In 30.5-cmT at 56x, broad faint dusttail visible, ~10' long.) 2005 4 5.51 S 6.8 TJ 7.0R 10 15 5 YOS Ibaraki, Japan (Looks similar to before, a moderately condensed round ball, although it became fainter. Still easy to see.) 2005 4 4.051 M 7.0 TK 6.0B 15 11 4 DIJ Groningen 2005 4 2.935 M 6.9 TK 6.0B 15 9 4/ DIJ Groningen 2005 4 2.08 M 6.9 TK 5.0B 7 10 3 GRA Fjellhamar (Observation affected by mist and haze.) 2005 4 1.96 S 7.1 TK 5.0B 7 12 4 BIV Poigny-la-Forêt (With 40.7-cmL at 233x, jets in p.a. 50, 90 and 210 deg., cent. cond. at m=13.2; at x58 tails in p.a. 160 and 240 deg.) 2005 4 1.903 M 7.0 TK 8.0B 15 9 4/ BOU Sint Annen 2005 4 1.888 S 7.0 TK 5.0B 10 8 4 GIL Noordwijk aan Zee 2005 4 1.875 M 6.9 TK 6.0B 15 8 5 DIJ Noorddijk 2005 3 31.937 S 7.3 TK 8.0B 15 7 4 COM Roden 2005 3 31.91 S 7.0 TK 5.0B 7 11 5 BIV Poigny-la-Forêt 2005 3 31.876 M 6.9 TK 6.0B 15 8 4/ DIJ Lauwersoog 2005 3 31.876 M 6.9 TK 8.0B 15 9 4/ BOU Lauwersoog 2005 3 31.10 M 6.8 TK 5.0B 7 10 3/ GRA Fjellhamar (Smaller in angular extent, but slightly brighter than M81. NEL = 5.7 [approx.].) 2005 3 27.91 M 6.7 TK 5.0B 7 10 3/ GRA Fjellhamar (Comet somewhat easier to see than M81.) 2005 3 23.151 S 6.7 TK 8.0B 15 8 3/ BOU Groningen 2005 3 21.026 S 6.6 TK 8.0B 15 10 3/ BOU Groningen 2005 3 21.021 M 6.6 TK 5.0B 7 10 3/ DIJ Noorddijk 2005 3 20.16 S 6.6 TK 5.0B 7 10 5 0.3 210 BIV Poigny-la-Forêt (With 25.6-cmL at 169x, jets in p.a. 30, 70 and 110 deg., cent. cond. at m=12.7.) 2005 3 20.155 M 6.6 TK 5.0B 7 10 4 BOU Garmerwolde 2005 3 20.076 M 6.6 TK 6.0B 15 13 4 DIJ Groningen 2005 3 19.08 M 6.4 TK 5.0B 7 11 4 GRA Fjellhamar 2005 3 18.17 B 6.5 TK 5.0B 7 11 6 GON Sierra del Aramo, Asturias 2005 3 18.14 S 6.5 TK 5.0B 7 8 5 0.3 200 BIV Poigny-la-Forêt 2005 3 15.16 M 6.0 TK 5.0B 7 12 4 GRA Fjellhamar 2005 3 15.16 S 6.3 TK 5.0B 7 10 5 0.3 190 BIV Poigny-la-Forêt 2005 3 13.987 M 6.4 TK 5.0B 7 11 3/ DIJ Groningen 2005 3 13.967 M 6.4 TK 5.0B 7 12 5 BOU Sint Annen 2005 3 13.169 M 6.3 TK 5.0B 7 11 4/ BOU Garmerwolde 2005 3 12.88 S 5.9:TK 0.7E 1 15 5 BIV Poigny-la-Forêt 2005 3 12.85 S 6.2 TK 5.0B 7 13 6 0.7 185 BIV Poigny-la-Forêt 2005 3 11.91 B 6.1 TK 5.0B 7 12 6 0.6 140 GON Camposagrado, León (Ion tail 0.6 deg. in p.a. 140 deg., dust tail 0.5 deg. in p.a. 190 deg.) 2005 3 11.830 M 6.3 TK 5.0B 7 10 4/ DIJ Groningen 2005 3 10.23 I 5.9 TK 0.0E 1 15 8 GON Camposagrado, León 2005 3 10.19 B 6.0 TK 5.0B 7 12 6 GON Camposagrado, León 2005 3 9.953 M 6.3 TK 5.0B 7 11 4/ DIJ Groningen 2005 3 9.892 M 6.5 TK 5.0B 10 &10 4/ COM Kgs. Lyngby, Denmark 2005 3 9.88 M 6.3 TK 5.0B 7 12 4/ GRA Fjellhamar 2005 3 9.810 M 6.2 TK 5.0B 7 12 4/ BOU Sint Annen 2005 3 8.861 B 6.4 TK 5.0B 10 &10 4/ COM Roden 2005 3 8.858 M 6.2 TK 8.0B 15 12 4 BOU Groningen 2005 3 8.50 S 5.6 YG 7.0R 10 13 6/ YOS Ibaraki, Japan (Strongly condensed as before. It looks small. I heard 6-6.5 mag reports recently, but it appears bright around 5.5 mag still now.) 2005 3 7.97 B 6.0 TK 5.0B 7 12 5 0.9 110 GON Camposagrado, León (Ion tail 0.9 deg. in p.a. 110 deg., dust tail 0.5 deg. in p.a.170 deg.) 2005 3 7.11 M 6.0 TK 5.0B 7 12 4 GRA Fjellhamar (Coma was diffuse and somewhat larger than M13, but less condensed and with a weaker glow.) 2005 3 6.84 B 6.0:TK 0.7E 1 10 5 BIV Poigny-la-Forêt 2005 3 6.83 S 6.2 TK 5.0B 7 9 5 0.6 115 BIV Poigny-la-Forêt 2005 3 6.157 M 6.1 TK 5.0B 7 14 4/ BOU Sint Annen 2005 3 5.951 M 6.0 TK 5.0B 7 11 4/ DIJ Groningen 2005 3 4.83 B 6.0 TK 5.0B 7 13 6 GON Soterraña - Lena, Asturias 2005 3 3.951 M 5.9 TK 5.0B 7 14 5 BOU Sint Annen 2005 3 3.822 M 6.2 TK 5.0B 7 11 4 DIJ Groningen 2005 3 3.817 M 6.2 TK 5.0B 10 &13 5/ COM Roden 2005 3 3.20 M 5.9 TK 5.0B 7 11 4/ GRA Fjellhamar (Close to a 5th magnitude star.) 2005 3 2.13 M 5.9 TK 5.0B 7 11 4 GRA Fjellhamar 2005 3 1.88 B 5.8 TK 5.0B 7 13 6 0.9 90 GON Camposagrado, León (In 7x50B, ion tail 0.9 deg in p.a. 90 deg., dust tail 0.5 deg. in p.a.150 deg.) 2005 3 1.87 I 5.6 TK 0.0E 1 15 8 GON Camposagrado, León 2005 2 28.97 S 6.0 TK 5.0B 7 11 5 BIV Versailles 2005 2 28.781 M 5.9 TK 5.0B 7 11 5 BOU Zuidwolde 2005 2 28.58 S 5.3 YG 7.0R 10 20 5 YOS Ibaraki, Japan 2005 2 27.873 M 6.0 TK 5.0B 7 11 4 DIJ Zuidwolde 2005 2 27.873 M 5.8 TK 5.0B 7 12 5/ BOU Zuidwolde 2005 2 27.84 S 5.9 TK 5.0B 7 10 5 BIV Versailles 2005 2 26.89 M 5.8 TK 5.0B 7 11 4/ GRA Fjellhamar 2005 2 26.824 M 5.8 TK 5.0B 7 12 5 BOU Groningen 2005 2 22.955 M 5.8 TK 5.0B 7 10 4/ DIJ Groningen 2005 2 22.876 M 5.6 TK 8.0B 15 10 5 BOU Groningen (Well visible in strong moonlight.) 2005 2 22.83 S 6.0:HV 5.0B 7 12 5 BIV Versailles 2005 2 21.86 S 5.9:HV 5.0B 7 8 6 BIV Versailles 2005 2 20.05 M 5.5 TK 5.0B 7 14 5/ GRA Fjellhamar (Still somewhat brighter than M13. Moonlight, NEL = 5.3.) 2005 2 19.99 S 5.5 HV 5.0B 7 17 5 BIV Versailles 2005 2 18.977 M 5.5 TK 5.0B 7 12 4 DIJ Groningen 2005 2 18.949 M 5.4 TK 5.0B 7 12 6 BOU Groningen 2005 2 18.82 B 5.5 TK 5.0B 7 15 7 GON Linares - Proaza, Asturias (Moonlight interference.) 2005 2 15.988 M 5.2 TK 5.0B 7 13 5/ BOU Groningen 2005 2 15.983 M 5.4 TK 5.0B 7 12 4 DIJ Groningen 2005 2 15.11 M 5.2 TK 5.0B 7 14 6 GRA Fjellhamar 2005 2 14.840 M 5.3 TK 5.0B 7 13 5 DIJ Groningen 2005 2 13.900 M 5.3 TK 5.0B 7 13 4/ DIJ Groningen 2005 2 13.899 M 5.1 TK 5.0B 7 14 6 BOU Groningen 2005 2 12.96 B 5.0 HV 0.7E 1 10 5 BIV Poigny-la-Forêt 2005 2 12.92 S 5.1 HV 5.0B 7 12 6 1.4 80 BIV Poigny-la-Forêt (With 25.6-cmL at 169x, jets in p.a. 280 and 315 deg., cent. cond. at m=12.0.) 2005 2 12.917 M 5.2 TK 5.0B 10 &13 6 COM Roden 2005 2 11.98 I 5.0 TK 0.7E 1 GRA Fjellhamar 2005 2 11.98 M 5.0 TK 5.0B 7 14 6 GRA Fjellhamar 2005 2 11.08 I 5.0 TK 0.7E 1 GRA Fjellhamar 2005 2 11.08 M 4.9 TK 5.0B 7 14 6 GRA Fjellhamar (Clearly larger and brighter than M13. NEL = 5.7.) 2005 2 10.812 M 4.9 TK 5.0B 7 14 6/ BOU Sint Annen 2005 2 9.85 B 5.2 TK 5.0B 7 17 7 1.8 85 GON Soto y Amio, León (In 7x50B, ion tail 1.8 deg. in p.a. 85 deg., dust tail 1.3 deg. in p.a. 145 deg.) 2005 2 9.84 I 5.0 TK 0.0E 1 17 8 GON Soto y Amio, León 2005 2 9.01 B 4.9 HV 0.7E 1 15 6 BIV Poigny-la-Forêt 2005 2 9.00 S 5.0 HV 5.0B 7 10 6 1.5 85 BIV Poigny-la-Forêt 2005 2 8.888 M 5.1 TK 5.0B 10 15 6 COM Roden 2005 2 8.791 M 4.9 TK 5.0B 7 14 6 BOU Groningen 2005 2 7.910 M 5.0 TK 5.0B 10 6 COM Roden 2005 2 7.861 M 4.7 TK 5.0B 7 14 7 BOU Sint Annen 2005 2 7.861 S 4.7 TK 5.0B 7 13 6 1.3 85 DIJ Sint Annen 2005 2 7.82 B 4.9 TK 5.0B 7 17 7 0.8 90 GON Anayo - Piloña, Asturias (In 7x50B, ion tail 0.8 deg. in p.a. 90 deg., dust tail 0.4 deg. in p.a. 145 deg.) 2005 2 7.81 I 4.8 TK 0.0E 1 17 8 GON Anayo - Piloña, Asturias 2005 2 6.917 M 5.0 TK 5.0B 10 &15 6 COM Kgs. Lyngby, Denmark 2005 2 6.833 M 4.6 TK 5.0B 7 16 6 1 83 DIJ Lauwersoog 2005 2 6.833 M 4.7 TK 5.0B 7 16 7 1.0 85 BOU Lauwersoog (Comet still easily visible to naked eye. In 7x50B, besides very faint gastail, also more conspicuous dusttail visible, rather broad, 1.7 deg. long in p.a. 140 deg.) 2005 2 6.82 B 4.7 HV 0.7E 1 15 5 BIV Poigny-la-Forêt 2005 2 6.82 S 4.8 HV 5.0B 7 12 6 1.5 80 BIV Poigny-la-Forêt 2005 2 5.831 M 4.8 TK 5.0B 10 &15 6/ COM Kgs. Lyngby, Denmark 2005 2 5.49 I 4.7 YG 0.0E 1 8 YOS Ibaraki, Japan (Still visible with the naked eye, but it looks similar to an ordinary star.) 2005 2 5.49 S 4.6 YG 2.4B 10 15 6/ YOS Ibaraki, Japan 2005 2 4.997 M 4.6 TK 5.0B 7 15 6 BOU Groningen 2005 2 4.82 B 4.6 HV 0.7E 1 15 5 BIV Poigny-la-Forêt 2005 2 4.82 S 4.7 HV 5.0B 7 15 6 2.0 80 BIV Poigny-la-Forêt 2005 2 4.51 S 4.6 YG 7.0R 10 14 6 YOS Kanagawa, Japan 2005 2 3.55 S 4.5 YG 7.0R 10 13 6/ YOS Kanagawa, Japan 2005 2 2.92 B 4.5 TK 5.0B 7 13 7 1.2 95 GON Grandota - Oviedo, Asturias (In 7x50B, ion tail 1.2 deg. in p.a. 95 deg., dust tail 0.4 deg. in p.a. 145 deg.) 2005 2 2.91 I 4.4 TK 0.0E 1 15 8 GON Grandota - Oviedo, Asturias 2005 2 2.88 M 4.6 TK 0.7E 1 SKI Hønefoss 2005 2 2.88 M 4.6 TK 5.0B 7 15 6/ 3 90 SKI Hønefoss (With 7x50B, a very faint gas tail was seen 3 deg. long and at about p.a. 90 deg. Very favourable conditions, NEL = 6.5.) 2005 2 2.55 S 4.5 YG 7.0R 10 14 6 YOS Kanagawa, Japan 2005 2 1.52 S 4.3 YG 7.0R 10 11 6/ 19m 105 YOS Kanagawa, Japan 2005 2 1.16 M 4.6 TK 5.0B 7 14 5/ GRA Fjellhamar 2005 1 31.96 B 4.4 TK 5.0B 7 15 7 0.6 95 GON Soto y Amío, León (Mountain location, very clear sky. In 7x50B, ion tail 0.6 deg. in p.a. 95 deg., dust tail 0.4 deg. in p.a.140 deg.) 2005 1 31.958 M 4.7 TK 5.0B 10 15 6/ COM Roden 2005 1 31.95 I 4.3 TK 0.0E 1 15 8 GON Soto y Amío, León 2005 1 31.844 M 4.3 TK 5.0B 7 15 5 DIJ Groningen 2005 1 31.823 M 4.4 TK 5.0B 7 16 7 1.5 75 BOU Zuidwolde (Besides gastail of 1.5 deg. in p.a. 75 deg., broad diffuse dusttail 1.0 deg. in p.a. 135 deg.) 2005 1 31.53 S 4.4 YG 7.0R 10 18 7 YOS Kanagawa, Japan 2005 1 30.963 M 4.3:TK 5.0B 7 5 DIJ Noorddijk (Comet close to star of magn. 5.6.) 2005 1 30.86 B 4.3 TK 5.0B 7 15 7 GON Cordal de las Segadas, Asturias 2005 1 30.84 I 4.2 TK 0.0E 1 15 8 GON Cordal de las Segadas, Asturias 2005 1 26.90 B 4.3 HV 0.7E 1 10 5 BIV Versailles 2005 1 26.88 S 4.5 HV 5.0B 7 12 6 0.8 80 BIV Versailles 2005 1 26.57 S 4.1 YG 7.0R 10 13 7 YOS Kanagawa, Japan 2005 1 25.93 S 4.5 HV 5.0B 7 12 6 0.7 80 BIV Versailles 2005 1 25.899 M 4.4 TK 5.0B 7 16 5 DIJ Groningen 2005 1 25.892 M 4.5 TK 5.0B 10 &15 5 COM Roden 2005 1 25.883 M 4.2 TK 5.0B 7 16 6/ BOU Groningen 2005 1 24.94 B 4.3 HV 0.7E 1 10 5 BIV Versailles 2005 1 24.92 S 4.4 HV 5.0B 7 12 6 BIV Versailles (With 25.6-cmL at 169x, jets in p.a. 250, 280 and 330 deg., cent. cond. at m=11.5.) 2005 1 24.82 I 4.2 TK 0.0E 1 20 7 GON Grandota - Oviedo, Asturias 2005 1 24.81 S 4.2 TK 5.0B 7 17 6 0.4 90 GON Grandota - Oviedo, Asturias (In 7x50B, ion tail 0.4 deg. in p.a. 90 deg. Strong moonlight interference.) 2005 1 24.775 M 4.2 TK 5.0B 7 18 5/ DIJ Noorddijk 2005 1 24.742 M 4.2 TK 5.0B 7 15 6 BOU Groningen 2005 1 24.64 S 4.1 YG 7.0R 10 12 7 YOS Kanagawa, Japan 2005 1 23.99 M 4.3 TK 5.0B 7 15 5/ GRA Fjellhamar (Faintly seen with naked eye. Strong moonlight, NEL = 4.5.) 2005 1 23.82 B 4.4 HV 0.7E 1 15 5 BIV Versailles 2005 1 23.78 S 4.4 HV 5.0B 7 12 5 BIV Versailles (With 25.6-cmL at 169x, cent. cond. at m=11.3.) 2005 1 22.924 M 4.5 TK 5.0B 10 &15 5/ COM Roden 2005 1 22.830 M 4.1 TK 5.0B 7 17 5 DIJ Groningen 2005 1 22.824 M 4.1 TK 5.0B 7 18 6 BOU Groningen 2005 1 22.81 S 4.2 TK 5.0B 7 17 6 GON Sierra del Aramo, Asturias 2005 1 22.80 I 4.1 TK 0.0E 1 20 7 GON Sierra del Aramo, Asturias (Strong moonlight interference.) 2005 1 22.72 M 4.2 TK 5.0B 7 18 6 GRA Fjellhamar (Strong moonlight.) 2005 1 22.47 S 4.1 YG 7.0R 10 16 6/ YOS Kanagawa, Japan 2005 1 21.801 M 4.0 TK 5.0B 7 16 7 BOU Zuidwolde (Moonlight; comet only 20' from iota Per. Fine display of bright aurora in the north!) 2005 1 21.733 M 4.0 TK 5.0B 7 18 5 DIJ Groningen 2005 1 21.67 S 4.2 YG 7.0R 10 13 6 YOS Kanagawa, Japan 2005 1 20.972 M 4.0 TK 5.0B 7 17 5/ DIJ Groningen 2005 1 20.57 S 4.0 YG 7.0R 10 19 6/ YOS Kanagawa, Japan 2005 1 19.757 M 4.3 TK 5.0B 10 &15 6 COM Roden (In 30.5cmT at 56x false stellar nucleus obvious; also short broad dusttail visible.) 2005 1 19.751 M 4.0 TK 5.0B 7 17 6/ BOU Groningen 2005 1 19.59 S 4.0 YG 7.0R 10 14 5 YOS Kanagawa, Japan (I felt it fainter and evidently more diffused than previous days, but probably due to dim sky.) 2005 1 19.12 S 4.2 HV 5.0B 7 15 5 1.0 80 BIV Poigny-la-Forêt 2005 1 19.12 B 4.2 HV 0.7E 1 15 5 BIV Poigny-la-Forêt (With 25.6-cmL at 169x, jets in p.a. 250, 280 and 335 deg., cent. cond. at m=11.5.) 2005 1 19.03 M 4.0 TK 5.0B 7 20 6 GRA Fjellhamar (Somewhat brighter than and similar in size to the visible part of M31. Moonlight, NEL = 5.0 [approx.].) 2005 1 18.89 B 4.2 HV 0.7E 1 16 5 BIV Versailles 2005 1 18.763 M 3.8 TK 5.0B 7 24 6 DIJ Groningen 2005 1 18.749 M 3.9 TK 5.0B 7 18 6/ BOU Groningen 2005 1 18.743 M 4.1 TK 5.0B 10 6 >0.5 COM Roden (Very clear with moon; short broad dusttail visible.) 2005 1 18.59 S 3.9 YG 7.0R 10 16 6 YOS Kanagawa, Japan 2005 1 17.55 S 3.9 YG 7.0R 10 15 6 YOS Kanagawa, Japan 2005 1 17.08 S 3.9 TK 5.0B 7 22 6 2.5 98 GON Sierra del Aramo, Asturias (In 7x50B, ion tail 2.5 deg. in p.a. 98 deg., dust tail 0.6 deg. in p.a. 150 deg.) 2005 1 17.07 I 3.7 TK 0.0E 1 25 7 GON Sierra del Aramo, Asturias 2005 1 16.800 M 3.9 TK 0.0E 1 23 6 DIJ Heerde 2005 1 16.773 M 3.8 TK 5.0B 7 18 6/ BOU Groningen 2005 1 15.95 S 4.1 HV 5.0B 7 16 5 0.5 150 BIV Versailles 2005 1 15.94 B 4.1 HV 0.7E 1 20 5 BIV Versailles (In 7x50B wide dust tail; with 25.6-cmL at 169x, jets in p.a. 260, and 290-360 deg cent. cond. at m=11.2.) 2005 1 15.921 M 3.9 TK 5.0B 7 25 6 2.6 89 DIJ Groningen (Also dusttail 0.5 deg. in p.a. 158 deg.) 2005 1 15.919 M 3.7 TK 5.0B 7 19 6/ 2.0 85 BOU Groningen (Also broad dusttail visible, 1.0 deg. in p.a. ~155 deg.) 2005 1 15.02 S 3.9 TK 5.0B 7 22 6 1.5 95 GON La Vara - Morcin, Asturias (Rural location. In 7x50B, ion tail 1.5 deg. in p.a. 95 deg., dust tail 0.6 deg. in p.a.150 deg.) 2005 1 15.01 I 3.8 TK 0.0E 1 25 7 GON La Vara - Morcin, Asturias 2005 1 14.885 M 3.8 TK 5.0B 7 26 6/ 3.0 81 DIJ Sint Annen (Also dusttail about 1.0 deg. in p.a. 171 deg.) 2005 1 14.883 M 3.7 TK 5.0B 7 22 7 2.5 92 BOU Sint Annen (Comet obvious naked eye object. In 7x50B, besides ion tail of 2.5 deg. in p.a. 92 deg., dusttail 1.0 deg. in p.a. 165 deg.) 2005 1 13.845 M 3.7 TK 5.0B 7 20 6/ BOU Groningen 2005 1 13.820 M 4.1 TK 5.0B 10 &20 6/ >1.0 COM Roden 2005 1 13.80 M 3.6 TK 0.7E 1 25 6 GRA Fetsund 2005 1 13.80 M 3.7 TK 5.0B 7 27 6/ 2.0 165 GRA Fetsund 2005 1 13.80 N 9.3 TK 7.0R 20 20 6/ 2.0 165 GRA Fetsund (With 7x50B and 7.0-cmR at 20x, data refer to an apparent dust tail; this tail was quite broad and curved counterclockwise by about 10 deg. The same instruments also showed a 1.4 deg gas tail in p.a. 90 deg.; this component was straight and more narrow; both tails were faint. With 7.0-cmR at 20x, the "N" magnitude refers to an apparently stellar nucleus; the coma was distinctly greenish and showed an assymmetric brightness distribution with the central condensation towards west. Comet easily seen with naked eye and was somewhat more prominent than M31. Favourable conditions, NEL = 6.4.) 2005 1 13.799 M 3.8 TK 5.0B 7 24 6/ 2.4 84 DIJ Groningen (Dusttail about 1.0 deg. long in p.a. 160 deg.) 2005 1 13.57 M 3.6 YG 7.0R 10 20 6/ YOS Kanagawa, Japan 2005 1 13.02 M 3.8 TK 5.0B 7 25 6/ 0.6 160 GRA Fjellhamar 2005 1 13.02 M 3.6 TK 0.7E 1 25 6 GRA Fjellhamar 2005 1 12.95 B 3.6 YG 0.7E 1 6 SKI Hønefoss 2005 1 12.95 5.0B 7 25 2.0 90 SKI Hønefoss (With 7x50B, data refer to a narrow ion tail, a short dust tail was also seen towards south. Favourable conditions, NEL = 6.5.) 2005 1 12.883 M 4.2 TK 5.0B 10 &20 6 COM Roden (In 30.5-cmT at 56x, broad fan-shaped dust tail ~1 deg. long.) 2005 1 12.85 S 3.8 HV 5.0B 7 20 6 1.0 85 BIV Poigny-la-Forêt 2005 1 12.81 B 3.8 HV 0.7E 1 20 6 BIV Poigny-la-Forêt 2005 1 12.803 M 3.7 TK 5.0B 7 22 6/ 2.3 83 BOU Sint Annen (Comet very obvious to NE. In 7x50B, ion tail 2.3 deg. in p.a. 83 deg., broad dusttail about 1.0 deg. long in p.a. 170 deg. Star of magn. 5.8 at edge of coma.) 2005 1 12.787 B 3.5 TK 0.0E 1 6 BOU Sint Annen 2005 1 12.744 M 3.7 TK 5.0B 7 23 7 DIJ Groningen (Comet close to star of magn. 5.8.) 2005 1 12.53 M 3.6 YG 7.0R 10 19 6/ YOS Kanagawa, Japan 2005 1 11.56 M 3.5 YG 7.0R 10 24 7 YOS Kanagawa, Japan 2005 1 11.00 B 3.7 YG 0.7E 1 6 SKI Hønefoss 2005 1 11.00 5.0B 7 23 2.0 85 SKI Hønefoss (No tail seen naked eye. With 7x50B, coma between 20' and 25'; tail was narrow. Clear dark sky, NEL = 6.5.) 2005 1 10.719 I 3.9 TK 0.0E 1 JOH Gronau 2005 1 11.50 S 3.7 AA 0.0E 1 SEA The Entrance, NSW 2005 1 10.40 M 3.5 YG 7.0R 10 26 7 YOS Ibaraki, Japan 2005 1 10.03 S 3.8 HV 5.0B 7 15 6 BIV Versailles 2005 1 10.02 B 3.8 HV 0.7E 1 20 5 BIV Versailles 2005 1 9.96 I 4.0 TK 0.0E 1 4 PER Cabo da Roca (HIP 16386 and HIP 16378 seen as one star involved in the coma, and brightness subtracted [+0.1 mag] from m1; HIP 16410 and HIP 16411 seen as one star near coma edge, but thought to have not affected m1 [otherwise their contribution would be less than 0.2 mag]; stellar naked eye limit near comet mag. 6.9.) 2005 1 9.82 S 3.6 TK 5.0B 7 27 6 2.5 85 GON El Fito - Sierra del Sueve, Asturias (In 7x50B, ion tail 2.5 deg. in p.a. 85 deg., dust tail 1.5 deg. in p.a. 180 deg.) 2005 1 9.81 I 3.4 TK 0.0E 1 32 7 GON El Fito - Sierra del Sueve, Asturias 2005 1 9.72 N 9.5 TK 15.2L 38 18 7 GRA Fjellhamar 2005 1 9.72 M 3.6 TK 5.0B 7 20 6/ GRA Fjellhamar (Somewhat brighter than M31. Greenish coma with an assymmetric brightness distribution.) 2005 1 9.59 M 3.3 YG 7.0R 10 24 7 YOS Ibaraki, Japan 2005 1 8.95 I 4.0 TK 0.0E 1 3/ PER Cabo da Roca (Comet brighter again; stellar naked eye limit near comet mag. 6.5.) 2005 1 8.925 M 3.5 TK 5.0B 7 25 6/ 2.0 86 BOU Groningen (Ion tail very faint. Dusttail is broad fan roughly pointing south.) 2005 1 8.840 I 3.9 TK 0.0E 1 JOH Gronau 2005 1 8.808 M 3.6 TK 5.0B 7 24 7 1.9 78 DIJ Eenum 2005 1 8.766 M 3.9 TK 5.0B 10 28 7 COM Roden 2005 1 8.55 M 3.6 YG 2.4B 10 22 6/ YOS Ibaraki, Japan (Long straight ion tail and wide dust tail are clearly visible with 10-cm binoculars.) 2005 1 8.48 S 3.5 AA 0.0E 1 SEA The Entrance, NSW 2005 1 8.45 M 3.5 YG 0.0E 1 36 7/ YOS Ibaraki, Japan (Rendezvous with Pleiades. Looks like a ball with the naked eye.) 2005 1 7.953 M 3.6 TK 5.0B 7 25 6/ 2.5 82 BOU Groningen 2005 1 7.88 I 4.2 TK 0.0E 1 3/ PER Cabo da Roca (Comet fainter and more diffuse; stellar naked eye limit near comet mag. 6.2.) 2005 1 7.84 S 3.7 TK 5.0B 7 27 6 2.6 80 GON Aralla, León (In 7x50B, ion tail 2.6 deg. in p.a. 80 deg., dust tail 1.0 deg. in p.a. 185 deg.) 2005 1 7.83 I 3.5 TK 0.0E 1 32 7 GON Aralla, León 2005 1 7.813 M 3.6 TK 5.0B 7 23 7 2 77 DIJ Eenum 2005 1 7.760 M 3.8 TK 5.0B 10 &25 7 COM Roden 2005 1 7.61 S 3.2 YG 0.0E 1 28 6 YOS Ibaraki, Japan 2005 1 7.61 M 3.7 YG 7.0R 10 27 6 YOS Ibaraki, Japan 2005 1 7.48 S 3.4 AA 0.0E 1 SEA Cowra, NSW 2005 1 7.07 GB 4.0 TK 0.0E 1 5/ PER Cabo da Roca 2005 1 7.01 I 4.0 TK 0.0E 1 5 PER Cabo da Roca (Altocumulus lenticularis elsewhere in the sky, yet stellar naked eye limit near comet mag. 6.4. 2005 1 6.843 M 3.8 TK 5.0B 10 &25 7 COM Roden 2005 1 6.81 S 3.7 TK 5.0B 7 27 6 3.3 80 GON Aralla, León (Mountain location, very clear sky. Zodiacal light. In 7x50B, ion tail 3.3 deg. in p.a. 80 deg., dust tail 1.6 deg. in p.a. 185 deg.) 2005 1 6.80 I 3.5 TK 0.0E 1 32 7 GON Aralla, León 2005 1 6.733 M 3.7 TK 5.0B 7 23 7 2.4 76 DIJ Noorddijk 2005 1 6.54 M 3.6 YG 7.0R 10 22 7 YOS Kanagawa, Japan 2005 1 6.48 3.6 TK 0.7E 1 25 5 MAT Stockport Observatory, SA (Pleiades cluster used for coma measurement. In 25x100B, coma diameter is 22', ion tail is >3 degrees in p.a. 70 deg., dust tail >1 degree in p.a. 175 deg.) 2005 1 6.46 S 3.5 AA 0.0E 1 SEA Cowra, NSW (In 6x35B, tails 2 deg. in p.a. 85 deg. and 1.7 deg. in p.a. 185 deg.) 2005 1 5.99 M 4.0 TK 3.4B 9 &20 4 PER Cabo da Roca 2005 1 5.99 GB 4.0 TK 0.0E 1 6 PER Cabo da Roca 2005 1 5.98 I 4.0 TK 0.0E 1 6 PER Cabo da Roca (Stellar naked eye limit near comet mag. 6.; in spite of better conditions, tails less prominent in 9x34B than on previous observations.) 2005 1 5.97 S 4.0 HV 5.0B 7 18 6 1.0 80 BIV Versailles 2005 1 5.94 B 3.9 HV 0.7E 1 25 5 BIV Versailles (With 25.6-cmL at 169x, jets in p.a. 260, 310 and 340 deg., cent. cond. at m=11.5.) 2005 1 5.71 M 3.6 TK 0.7E 1 30 6 GRA Bratsberg, Trondheim 2005 1 5.71 M 3.7 TK 5.0B 7 25 6 GRA Bratsberg, Trondheim (Some disturbance from high clouds.) 2005 1 5.50 S 3.5 AA 0.0E 1 SEA Cowra, NSW 2005 1 5.47 M 3.6 YG 7.0R 10 28 7 YOS Kanagawa, Japan 2005 1 5.038 M 3.8 TK 5.0B 10 &25 7 COM Roden (In 30.5-cmT at 56x, broad dusttail ~0.5 deg. long.) 2005 1 4.986 M 3.6 TK 5.0B 7 25 7 BOU Zuidwolde 2005 1 4.96 M 3.6 TK 0.7E 1 30 6 GRA Malm 2005 1 4.96 M 3.7 TK 5.0B 7 25 6 0.5 180 GRA Malm (Tail was broad. Favourable conditions for a few minutes.) 2005 1 4.89 M 3.5 YG 5.0B 7 25 6 SKI Hønefoss 2005 1 4.89 B 3.5 YG 0.7E 1 6 SKI Hønefoss (Comet was brighter than M31. No tail seen with certainty. With 7.0-cm refractor, the coma showed an assymmetric brightness distribution. NEL = 6.5.) 2005 1 4.46 S 3.5 AA 0.0E 1 20 SEA Cowra, NSW (In 6x35B, tail 2.3 deg. in p.a. 78 deg. In 25x100B, a second tail 0.6 deg. in p.a. 100 deg.) 2005 1 3.85 I 4.3 TK 0.0E 1 4/ PER Cabo da Roca 2005 1 3.80 I 3.7 TK 0.0E 1 30 7 GON Aralla, León 2005 1 3.79 S 3.9 TK 5.0B 7 27 6 3.2 70 GON Aralla, León (Mountain location, very clear sky. Zodiacal light. In 7x50B, forked ion tail 3.2 deg. in p.a. 70 deg., dust tail 1.6 deg. in p.a. 190 deg.) 2005 1 3.73 3.6 5.0B 7 30 BAR Milan 2005 1 3.58 M 3.7 YG 7.0R 10 25 7 YOS Kanagawa, Japan 2005 1 2.94 B 3.8 YG 0.7E 1 6 SKI Hole (No tail seen with naked eye. Observed from between Sundvollen and Sollihøgda. NEL = 6.0.) 2005 1 2.892 M 3.9 TK 5.0B 10 >20 7 COM Kgs. Lyngby, Denmark 2005 1 2.88 S 4.1 HV 5.0B 7 23 6 2.0 70 BIV Poigny-la-Forêt (With 25.6-cmL at 169x and 333x, 1' jets in p.a. 300 and 340 deg.; cent. cond. at m=11.6.) 2005 1 2.82 I 4.3 TK 0.0E 1 5 PER Cabo da Roca (Comet slightly fainter than on previous observation.) 2005 1 2.82 B 4.0 HV 0.7E 1 25 6 BIV Poigny-la-Forêt 2005 1 2.813 M 3.7 TK 5.0B 7 25 7 2.0 56 DIJ Langelo (Also dusttail 0.8 deg. long in p.a. 184 deg.) 2005 1 2.812 M 3.6 TK 5.0B 7 25 7 2.0 65 BOU Langelo (Gastail is very faint. Broad dusttail is better visible some 0.9 deg. long in p.a. 190 deg.) 2005 1 2.69 M 3.7 TK 5.0B 7 25 5/ GRA Malm 2005 1 2.41 M 3.7 YG 7.0R 10 22 6/ YOS Kanagawa, Japan 2005 1 2.025 M 3.8 TK 5.0B 7 26 6/ BOU Groningen (Comet close to 30 Tau.) 2005 1 1.963 M 3.8 TK 5.0B 7 24 7 DIJ Groningen 2005 1 1.95 B 4.2 HV 0.7E 1 20 6 BIV Versailles 2005 1 1.50 I 4.1 YG 0.0E 1 27 6/ YOS Kanagawa, Japan (In-focus method. Probably too faint because of the bad light polution.) 2005 1 1.50 M 3.6 YG 7.0R 10 28 7 YOS Kanagawa, Japan 2004 12 31.99 S 4.2 HV 5.0B 7 20 6 1.5 65 BIV Versailles 2004 12 31.95 M 3.9 TK 5.0B 7 23 6 GRA Malm (Briefly observated a few minutes before the end of the year [UT + 1h in Norway]. This observation was thus affected by New Year fireworks.) 2004 12 31.95 B 4.1 HV 0.7E 1 20 6 BIV Versailles 2004 12 31.910 M 3.7 TK 5.0B 7 25 7 2.7 60 BOU Thesinge (Comet easy naked eye object. In 7x50B, besides a 2.7 deg gastail in p.a. 60 deg, faint broad dusttail visible, 1.1 deg long in p.a. 200 deg.) 2004 12 31.899 M 3.8 TK 5.0B 7 23 7 1.1 58 DIJ Groningen 2004 12 31.79 S 3.9 TK 5.0B 7 25 6 2.5 65 GON Aralla, León (In 7x50B, ion tail 2.5 deg. in p.a. 65 deg., dust tail 1.3 deg. in p.a. 205 deg.) 2004 12 31.78 I 3.7 TK 0.0E 1 30 7 GON Aralla, León 2004 12 31.65 M 3.7 YG 7.0R 10 24 7 YOS Kanagawa, Japan 2004 12 31.46 S 3.7 AA 0.0E 1 SEA The Entrance, NSW 2004 12 30.84 I 4.2 TK 0.0E 1 5 PER Cabo da Roca 2004 12 30.84 S 3.9 TK 5.0B 7 25 6 2.0 65 GON Sierra del Aramo, Asturias (In 7x50B, ion tail 2.0 deg. in p.a. 65 deg., dust tail 1.2 deg. in p.a. 205 deg.) 2004 12 30.82 I 3.7 TK 0.0E 1 30 7 GON Sierra del Aramo, Asturias 2004 12 30.78 B 4.0 TK 0.7E 1 SKI Hønefoss 2004 12 30.78 M 3.9 TK 5.0B 7 20 6 SKI Hønefoss (No tail seen. NEL = 5.5 near comet.) 2004 12 30.71 B 4.1 TK 0.7E 1 GRA Malm 2004 12 30.71 M 4.0 TK 5.0B 7 24 6 GRA Malm (With 7x50B, the comet appeared smaller but somewhat brighter than M31. No tail visible. Observed before moonrise under less than ideal conditions. NEL = 5.0 [approx.] near comet.) 2004 12 30.45 S 3.8 AA 0.0E 1 SEA The Entrance, NSW (In 25x100B, very sharp central condensation and broad, faint tail.) 2004 12 30.40 M 3.7 YG 7.0R 10 24 7 YOS Kanagawa, Japan 2004 12 29.83 I 4.3 TK 0.0E 1 7 PER Cabo da Roca 2004 12 29.83 S 4.1 TK 3.4B 9 15 5 PER Cabo da Roca (In 9x34B, tails seen but not measured.) 2004 12 29.70 M 3.9 YG 7.0R 10 26 7 YOS Kanagawa, Japan 2004 12 28.91 B 4.2:HV 0.7E 1 20 5 BIV Versailles 2004 12 28.883 M 4.0 TK 5.0B 7 20 6 DIJ Groningen 2004 12 28.87 S 4.5 HV 5.0B 7 20 6 BIV Versailles (With 40.7-cmL at 233x, jets in p.a. 280 and 330 deg.; cent. cond. at m=11.2.) 2004 12 28.786 M 4.0 TK 5.0B 7 20 6 BOU Groningen (Comet's visibility rapidly improving. Moonlight still a nuisance.) 2004 12 27.97 I 4.5 TK 0.0E 1 &16 4 PER Cabo da Roca 2004 12 27.97 S 4.4 TK 3.4B 9 16 4/ PER Cabo da Roca (Obvious naked eye object in spite of strong moonlight.) 2004 12 27.60 M 3.8 YG 7.0R 10 18 7 YOS Kanagawa, Japan 2004 12 26.974 M 4.2 TK 5.0B 7 18 5/ DIJ Noorddijk 2004 12 26.97 S 4.4 HV 5.0B 7 20 6 BIV Versailles (Clear skies but strong moonlight. With 25.6-cmL at 169x, jets in p.a. 260 and 320 deg.; cent. cond. at m=11.2.) 2004 12 26.81 M 4.0 TK 5.0B 7 20 6 GRA Malm (Easily visible despite Full Moon.) 2004 12 26.778 M 4.1 TK 5.0B 7 20 6 BOU Groningen (Strong moonlight.) 2004 12 25.932 M 4.3 TK 5.0B 7 18 5/ DIJ Noorddijk 2004 12 25.92 S 4.5 HV 5.0B 7 18 6 BIV Versailles (Clear skies but strong moonlight. With 25.6-cmL at 169x, jets in p.a. 130, 250 and 330 deg.; cent. cond. at m=11.4.) 2004 12 25.792 M 4.1 TK 5.0B 7 20 5/ BOU Groningen (Strong moonlight.) 2004 12 25.79 M 4.0 TK 5.0B 7 18 6 GRA Malm (Strong moonlight.) 2004 12 25.63 S 3.9 YG 7.0R 10 16 6/ YOS Kanagawa, Japan 2004 12 24.927 S 4.0 TK 5.0B 10 &20 6 COM Kgs. Lyngby, Denmark 2004 12 24.83 B 4.1 TK 6.0B 20 11 4/ RES Ostrorog 2004 12 23.88 I 4.0 TK 0.0E 1 15 7 GON Camposagrado, León 2004 12 23.87 S 4.2 TK 5.0B 7 15 6 GON Camposagrado, León (Strong moonlight interference.) 2004 12 22.96 M 4.2 YG 5.0B 7 16 5/ GRA Fjellhamar (Glow of coma slightly brighter than that of M31. Moonlight.) 2004 12 22.49 M 3.8 YG 7.0R 10 20 7 YOS Kanagawa, Japan 2004 12 20.65 S 4.1 YG 7.0R 10 18 6 YOS Kanagawa, Japan 2004 12 20.07 S 4.5 HV 5.0B 7 15 5 1.6 30 BIV Poigny-la-Forêt (With 25.6-cmL at 42x, 0.5 deg. tails in p.a. 240 and p.a. 30 deg.; at 169x cent. cond. at m=11.8.) 2004 12 20.05 B 4.5 HV 0.7E 1 15 5 BIV Poigny-la-Forêt 2004 12 19.888 M 4.3 TK 5.0B 7 18 6 1.5 27 BOU Sint Annen (Moonlight, but comet well visible in very transparant wintersky. Faintly visible NE.) 2004 12 19.837 M 4.4 TK 5.0B 7 17 6 DIJ Noorddijk 2004 12 18.928 S 4.4 TK 5.0B 10 &20 6 COM Roden (Moon behind distant snowshower.) 2004 12 18.91 M 4.4 TK 5.0B 7 18 6 GRA Fjellhamar (Comet was also imaged using 20.3cm SCT [working at f/3.3 and CCD with V-filter. Moonlight.) 2004 12 18.908 M 4.4 TK 5.0B 7 20 6 1.3 25 DIJ Noorddijk 2004 12 18.90 B 4.3 TK 6.0B 20 11 4/ RES Poznan 2004 12 18.892 M 4.3 TK 5.0B 7 18 6 BOU Garmerwolde 2004 12 18.49 S 4.1 AA 0.0E 1 SEA The Entrance, NSW 2004 12 17.998 S 4.5 TK 5.0B 10 &20 6 COM Roden 2004 12 17.97 S 4.4 HV 5.0B 7 18 5 1.5 25 BIV Poigny-la-Forêt (With 25.6-cmL at 42x, 0.6 deg. tail in p.a. 260 deg, 0.7 deg. tail in p.a. 20 deg.; at 169x cent. cond. at m=11.7.) 2004 12 17.96 B 4.4 HV 0.7E 1 15 5 BIV Poigny-la-Forêt 2004 12 17.89 I 4.4 TK 0.7E 1 GRA Fjellhamar 2004 12 17.89 M 4.3 TK 5.0B 7 18 6 GRA Fjellhamar (With 15.2-cmL at 38x, a false nucleus of about m2 = 8.5 [TK], no tail seen. Faintly visible to naked eye. Altitude 15 deg.) 2004 12 17.49 S 4.1 AA 0.0E 1 SEA Cowra, NSW 2004 12 16.96 S 4.4 HV 5.0B 7 16 5 1.5 20 BIV Poigny-la-Forêt (With 25.6-cmL at 42x, 0.6 deg. dust tail in p.a. 260 deg.; at 169x cent. cond. at m=12.7.) 2004 12 16.952 S 4.8 TK 5.0B 10 &18 6 COM Roden 2004 12 16.95 B 4.3 HV 0.7E 1 15 6 BIV Poigny-la-Forêt 2004 12 16.936 M 4.5 TK 5.0B 7 17 6 DIJ Sint Annen 2004 12 16.935 M 4.4 TK 5.0B 7 20 5/ 1.8 22 BOU Sint Annen 2004 12 16.89 B 4.4 TK 6.0B 20 15 5 RES Poznan 2004 12 16.53 S 4.5 YG 7.0R 10 16 6 YOS Kanagawa, Japan 2004 12 16.46 S 4.2 AA 0.0E 1 SEA Cowra, NSW 2004 12 15.93 M 4.6 TK 5.0B 7 18 5/ GRA Fjellhamar (The comet appeared slightly fainter than M31. A tail was suspected towards north. Glipsed with naked eye. 13 deg altitude.) 2004 12 15.91 I 4.5 TK 0.7E 1 SKI Hønefoss 2004 12 15.90 M 4.6 TK 5.0B 7 20 5/ SKI Hønefoss (With 7x50B, a possible tail about 1 deg. long at p.a. between 0 and 30 deg. NEL = 5.7 near comet.) 2004 12 15.89 B 4.6 TK 6.0B 20 13 5 RES Poznan 2004 12 15.50 S 4.2 AA 0.0E 1 SEA Cowra, NSW 2004 12 15.01 S 4.6 TK 5.0B 7 25 6 2.0 20 GON Sierra del Aramo, Asturias (Ion tail 2.0 deg. in p.a. 20 deg., dust tail 1.1 deg in p.a. 275 deg.) 2004 12 15.00 I 4.5 TK 0.0E 1 25 7 GON Sierra del Aramo, Asturias 2004 12 14.50 S 4.4 AA 0.0E 1 SEA Cowra, NSW 2004 12 13.50 S 4.4 AA 0.0E 1 SEA Cowra, NSW 2004 12 13.02 S 4.7 TK 5.0B 7 25 6 1.5 10 GON Sierra del Aramo, Asturias (Mountain location, very clear sky. In 7x50B, ion tail 1.5 deg. in p.a. 10 deg., dust tail 0.6 deg. in p.a. 285 deg.) 2004 12 13.01 I 4.6 TK 0.0E 1 25 7 GON Sierra del Aramo, Asturias 2004 12 12.97 M 5.0 TK 5.0B 7 18 5/ GRA Fjellhamar (Altitude 10 deg.) 2004 12 12.94 B 4.9 HV 0.7E 1 15 5 BIV Haute Provence Obs. (With 20.3-cmL at 40x, 30' dust tail in p.a. ~260 deg.; at 95x cent. cond. at m=12.3.) 2004 12 12.92 S 5.0 HV 5.0B 10 18 6 1.0 355 BIV Haute Provence Obs. 2004 12 12.04 I 4.6 TK 0.0E 1 25 7 GON Caldas de Luna, León 2004 12 12.02 S 4.7 TK 5.0B 7 22 6 2.0 10 GON Caldas de Luna, León (Mountain location, very clear sky. In 7x50B, ion tail 2.0 deg. in p.a. 10 deg., dust tail 0.6 deg. in p.a. 285 deg.) 2004 12 11.97 S 5.0 HV 5.0B 10 16 5 1.0 0 BIV Haute Provence Obs. (With 20.3-cmL at 40x, broad dust tail in p.a. ~260 deg.; at 95x cent. cond. at m=12.6.) 2004 12 11.95 B 4.8 HV 0.7E 1 15 5 BIV Haute Provence Obs. 2004 12 11.51 M 4.8 YG 7.0R 10 17 6 YOS Gunma, Japan 2004 12 11.50 I 4.3 YG 0.0E 1 20 7 YOS Gunma, Japan (Easily visible, looking nebulous, with the naked eye.) 2004 12 10.91 B 4.9 TK 6.0B 20 8 5 RES Poznan 2004 12 10.61 S 4.5 YG 7.0R 10 18 5/ YOS Kanagawa, Japan 2004 12 9.03 S 5.1 TK 5.0B 7 20 6 0.8 355 GON Aralla, León (Mountain location, very clear sky. In 7x50B ion tail 0.8 deg. in p.a. 355 deg., dust tail 0.6 deg. in p.a. 285 deg.) 2004 12 9.01 I 5.0 TK 0.0E 1 20 7 GON Aralla, León 2004 12 8.94 S 5.3 HV 5.0B 7 17 5 1.0 340 BIV Poigny-la-Forêt (With 25.6-cmL at 42x, broad dust tail in p.a. 280 deg.; at 169x cent. cond. at m=12.5.) 2004 12 7.99 M 5.1 TK 5.0B 7 15 5/ SKI Hønefoss (No tail visible. Altitude 6 deg. NEL = 4.5 near comet.) 2004 12 7.97 M 5.2 TK 5.0B 7 14 5/ GRA Fjellhamar (Altitude 6.5 deg.) 2004 12 7.58 S 4.7 YG 7.0R 10 12 5/ YOS Kanagawa, Japan 2004 12 6.90 B 5.2 TK 6.0B 20 7 5/ RES Poznan 2004 12 6.59 S 4.9 YG 7.0R 10 12 5 YOS Kanagawa, Japan 2004 12 6.034 S 5.3 TK 6.0B 15 8 5/ DIJ Noorddijk 2004 12 5.99 M 5.2 TK 5.0B 7 &15 5/ SKI Hønefoss (No tail seen. Altitude 5 deg.) 2004 12 5.99 S 5.4 TK 8.0B 11 14 6 0.9 355 GON Camposagrado, León (In 11x80B, ion tail 0.9 deg. in p.a. 355 deg., broader dust tail 0.6 deg. in p.a. 285 deg.) 2004 12 5.98 I 5.2 TK 0.0E 1 20 7 GON Camposagrado, León 2004 12 5.98 M 5.4 TK 5.0B 7 12 5 GRA Fjellhamar (With 7x50B, clearly seen despite 5.5 deg. maximum altitude. With 7.0-cmR at 24x, an apparent stellar cc of about mag. 7.5 [TK].) 2004 12 5.97 S 5.3 TK 5.0B 7 19 6 GON Camposagrado, León 2004 12 5.55 S 4.8 YG 7.0R 10 15 6 YOS Kanagawa, Japan 2004 12 3.47 M 5.2 AA 5.0B 10 SEA The Entrance, NSW 2004 12 2.57 S 5.2 YG 7.0R 10 13 5 YOS Kanagawa, Japan 2004 12 1.68 S 5.0 YG 7.0R 10 11 4 YOS Kanagawa, Japan 2004 11 30.48 S 5.3 AA 0.0E 1 SEA Cowra, NSW 2004 11 21.015 S 6.4 TK 8.0B 15 8 5 DIJ Sint Annen 2004 11 21.010 S 6.3 TK 8.0B 15 9 4/ BOU Sint Annen (Comet well visible despite elevation of only 7 degrees, and some light pollution.) 2004 11 20.194 S 5.8 TK 5.0B 10 20 5 LOO Le Castellard, France 2004 11 18.083 S 5.8 TK 12.0B 20 12 6 LOO Le Castellard, France 2004 11 18.06 I 6.2 TK 0.0E 1 20 5 GON Aralla, León 2004 11 18.03 S 6.2 TK 5.0B 7 15 5 0.9 325 GON Aralla, León (Mountain location, very clear sky. In 7x50B, ion tail 0.9 deg in p.a. 325 deg, broader dust tail 0.6 deg in p.a. 285 deg.) 2004 11 17.042 S 5.8 TK 5.0B 10 20 5 0.5 LOO Le Castellard, France 2004 11 16.59 S 6.4 TK 5.0B 7 9 5 MAT Stockport Observatory, SA (In 25x100B, a bright dust tail 20' in length is visible in p.a. 265 deg. In a 38cm reflector, a bright stellar nucleus of 11th magnitude is visible. A short ion tail is also detectable in p.a. 330 deg. Comet is visible to the unaided eye at zenith using averted vision.) 2004 11 16.198 S 6.6 TK 5.0B 10 7 6 LOO Le Castellard, France 2004 11 16.12 S 6.6 TK 10.0B 25 8 5 0.6 285 GON Camposagrado, León 2004 11 16.11 S 6.6 TK 5.0B 7 12 5 GON Camposagrado, León 2004 11 15.46 S 6.4 AA 2.5B 2 SEA The Entrance, NSW 2004 11 14.98 S 7.3:TK 25.6L 42 5 5 BIV Poigny-la-Forêt 2004 11 14.45 S 6.2 AA 0.0E 1 SEA Cowra, NSW 2004 11 13.965 S 7.1 TK 5.0B 10 7 5 LOO Le Castellard, France 2004 11 13.48 S 6.3 AA 0.0E 1 SEA Cowra, NSW 2004 11 13.10 S 6.9 TK 5.0B 7 8 5 GON Camposagrado, León 2004 11 13.08 S 7.1 TK 10.0B 25 6 5 0.2 285 GON Camposagrado, León 2004 11 13.07 S 7.4 TK 20.3T 77 5 6 GON Camposagrado, León 2004 11 12.47 S 6.3 AA 0.0E 1 SEA Cowra, NSW 2004 11 12.47 S 6.6 AA 3.5B 6 SEA Cowra, NSW (In 25x100B, broad tail visible for at least 20' in p.a. 260 deg.) 2004 11 10.54 S 6.3 AA 0.0E 1 SEA Cowra, NSW 2004 11 9.75 S 7.0 TJ 7.0R 10 10 4 YOS Gunma, Japan 2004 11 9.52 S 7.0 AA 3.5B 6 SEA Cowra, NSW (Comet very close to 7th. mag. star so brightness estimate probably too conservative. Something could be detected with naked eye at the position, but could not be sure whether it was the comet or a combination of comet and star. Observations on subsequent evenings indicated that it was the comet itself.) 2004 11 6.56 S 7.0 TK 10.0B 25 7 5 MAT Stockport Observatory, SA 2004 11 6.48 M 7.2 AA 10.0B 25 SEA The Entrance, NSW 2004 11 3.48 S 7.0 AA 2.5B 2 SEA The Entrance, NSW 2004 11 2.50 S 7.1 AA 5.0B 10 SEA The Entrance, NSW 2004 10 21.18 S 8.2 TK 5.0B 7 6 5 BIV Poigny-la-Forêt 2004 10 21.17 S 8.5 TK 25.6L 42 5.0 5 0.2 270 BIV Poigny-la-Forêt 2004 10 18.54 S 7.8 AA 3.5B 6 15 SEA Cowra, NSW 2004 10 16.56 S 7.9 AA 3.5B 6 SEA Cowra, NSW 2004 10 16.06 S 9.1 TK 25.6L 42 3.0 6 0.05 280 BIV Poigny-la-Forêt 2004 10 16.05 S 9.2 TK 25.6L 42 3.0 6 BIV Poigny-la-Forêt 2004 10 15.73 S 8.1 TJ 40.0L 36 6.5 6 YOS Gunma, Japan 2004 10 15.50 S 8.2 AA 5.0B 10 SEA Cowra, NSW 2004 10 13.53 S 8.7 AA 10.0B 25 SEA The Entrance, NSW 2004 10 12.53 S 8.8 AA 5.0B 10 SEA The Entrance, NSW 2004 10 12.123 M 9.2 TK 31.0J 72 3 4 BOU Garmerwolde (Comet observed at elevation of only 9 degrees.) 2004 10 11.52 S 8.8 AA 5.0B 10 SEA The Entrance, NSW 2004 10 10.54 M 9.0 AA 10.0B 25 SEA The Entrance, NSW 2004 10 8.73 S 8.9 TK 10.0B 25 4 5 8m 250 MAT Penwortham, SA 2004 10 7.53 S 8.9 AA 10.0B 25 3 4 SEA The Entrance, NSW 2004 10 5.55 S 9.0 AA 5.0B 10 SEA The Entrance, NSW (With 25x100B, little change [though poss. slightly fainter] thro' Swan band filter. 2004 10 3.18 S 9.7:TK 25.6L 42 3.0 5 BIV Versailles 2004 10 3.17 S 9.6:TK 25.6L 84 3.0 5 BIV Versailles 2004 9 24.16 S 9.6 TK 25.6L 42 3.0 5 BIV Poigny-la-Forêt 2004 9 19.79 S 10.0 TK 10.0B 25 2 4 MAT Wallaroo, SA (Short tail in p.a. 290 deg.) 2004 9 19.08 M 9.9 TK 20.3L 63 3 5 GUZ Krosno 2004 9 18.10 M 9.9 TK 20.3L 63 3 5 GUZ Krosno 2004 9 17.75 S 9.8 TJ 40.0L 75 2.5 6/ YOS Gunma, Japan 2004 9 17.67 S 10.4 TK 10.0B 25 2 4 MAT Wallaroo, SA (First observation. Small, moderately condensed comet.) 2004 9 17.18 S 10.0 TK 20.3T 77 2.5 5 GON Alto del Castro, León 2004 9 17.17 S 10.1 TK 40.7L 58 3.0 5 BIV Versailles 2004 9 17.11 S 9.5:TK 5.0B 10 3 7 GUZ Krosno 2004 9 17.09 M 9.8 TK 20.3L 63 3 5 GUZ Krosno (Rather bright, well condensed, also seen in binoculars at m1=9.5: thanks to very good conditions, NEL=6.2 close to this comet.) 2004 9 16.60 S 10.1 AA 10.0B 25 SEA The Entrance (Fainter using Swan Band filter.) 2004 9 16.130 S 10.2 TK 25.4J 72 2.0 3/ BOU Garmerwolde (Low altitude, only 10 deg. Some interference from nearby magn. 5.7 star.) 2004 9 15.12 S 10.3 TK 25.6L 42 2.6 6 0.05 280 BIV Poigny-la-Forêt 2004 9 11.16 S 10.5:TK 25.6L 84 2 4 BIV Versailles 2004 9 11.10 M 10.1 TK 20.3L 63 2.5 6 GUZ Krosno 2004 9 9.139 S 9.9 TK 25.4J 58 3.1 3/ DIJ Garmerwolde 2004 9 9.138 S 10.2 TK 25.4J 58 2 4 BOU Garmerwolde 2004 9 9.08 M 10.2 TK 20.3L 63 2.5 5 GUZ Krosno (Small, condensed object, easily visible despite low altitude and some moonlight interference.) 2004 9 4.12 S 10.3 TK 13.0L 45 2 3 RES Ostrorog 2004 8 28.16 S 10.9 TK 20.3T 77 2.3 4 GON Alto del Castro, León (Mountain location, clear sky. Zodiacal light near the ecliptic plane. Comet's altitude: 17 deg. Motion evident after 1 hour. Magnitude of nuclear condensation: 14.5.) 2004 8 28.09 S 10.4 TK 20.3L 63 2 3 GUZ Krosno (Low altitude and some haze.)