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* * * * * 96P/Machholz 1 * * * * *
Year Mn Day MM Mag Ref Scope Pwr coma DC tail p.a. Obs Site 2007 6 26.08 S 13.7 TA 20.3T 160 0.7 4 GON Alto del Trichero - Soto y Amío, León 2007 5 26.72 S 12.8 TA 40.0L 144 0.8 3 YOS Kita-karuizawa, Gunma (It was located in a dense area of background stars. Faint diffuse nebulous object was visible among them. Unexpectedly, it seems still bright and visible visually.) 2007 5 18.006 S 12.4 AU 31.0J 89 2.6 0/ DIJ Sint Annen 2007 5 18.004 S 12.3 AU 31.0J 89 2.1 1 BOU Sint Annen (Comet just a fairly large, but very diffuse glow.) 2007 5 9.05 S 10.9 TK 20.3T 100 1.5 4 GON Alto del Castro - Aralla, León (Mountain location, very clear sky. Altitude: 15 deg.) 2007 4 29.76 S 10.9 TJ 40.0L 144 1.6 5 YOS Kita-karuizawa, Gunma 2007 4 28.76 S 10.7 TJ 40.0L 75 2.2 5/ YOS Kita-karuizawa, Gunma (I was surprised that the comet was much brighter, and much more strongly condensed than I had expected. More strongly condensed than Comet Lovejoy. Easy to see. I thought this comet becomes only bright near the sun, and fades out soon after the perihelion passage. But actually, it was located high and very easy to see.) 2007 4 22.17 S 8.8 TK 10.0B 25 3 6 0.1 290 GON Collada de la Cobertoria, Lena, Asturias 2007 4 20.07 S 9.1 TK 20.3T 77 2.0 4 GRA Fjellhamar (Faint, but seen at correct location. Altitude 9 deg. and astronomical twilight [solar altitude -13 deg.].) 2007 4 18.16 M 8.2 TK 10.0B 25 3 6 GON Puerto de Aralla, León (Mountain location, clear sky. Altitude: 11 deg.) 2007 4 17.09 S 8.5 TK 20.3T 100 1.5 5 GRA Fjellhamar (Comet only barely visible, but it was detected at the correct location. Nearby stars down to 11th magnitude were visible. Altitude 9 deg. and solar altitude -12 deg.) 2007 4 16.117 S 7.9 TK 15.6L 36 3.1 6 DIJ Sint Annen 2007 4 16.115 S 8.3 TK 15.6L 36 2.8 4/ BOU Sint Annen 2007 4 16.108 S 8.3 TK 10.0B 14 3 6 LOO Grand Bois, Vielsalm 2007 4 15.127 S 7.8 TK 15.6L 36 3 5 DIJ Sint Annen (Very low and difficult due to bright morning sky.) 2007 4 15.124 S 8.0 TK 15.6L 36 3 4 BOU Sint Annen (Comet low [alt. 8 deg.] in twilight.) 2007 4 14.10 I [8.5 TK 7.0R 20 GRA Fjellhamar (Comet not seen near its ephemeris location. Faintest visible stars near comet were the pair HD 225150 and HD 225138. Altitude 7 deg. and solar altitude -12 deg.) 2007 4 13.18 M 7.2 TK 10.0B 25 3 6 GON Alto de Rosales, León (Mountain location, very clear sky. Astronomical twilight.) 2007 4 11.11 I [6.0 TK 7.0R 20 GRA Fjellhamar (No object was detected close to 96P's predicted location. The limiting magnitude is based on the visibility of nearby stars. Altitude 5 deg. and solar altitude -11 deg.)
2001 12 17.48 S 13.5:HS 27.5T 156 0.5 3 MAT Wallaroo, SA (Observation made at 10 degrees altitude.) 2001 12 16.48 S 13.5:HS 27.5T 156 0.5 3 MAT Wallaroo, SA (Comet is a magnitude fainter than the ephemeris. However, observation was made at 10 degrees altitude.)