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* * * * * 88P/Howell * * * * *
Year Mn Day MM Mag Ref Scope Pwr coma DC tail p.a. Obs Site 2010 2 2.79 S 12.0 TK 20.3T 133 1.5 4 GON Camposagrado, León 2009 12 4.78 S 8.6 TK 20.3T 77 6 4/ GON Camposagrado, León (Altitude: 14 deg.) 2009 11 18.78 S 8.4 TK 20.3T 77 7 3/ GON Pico Cueto - Busfrio - Cudillero, Asturias (Elongated wide coma with faint outer region. Altitude: 12 deg.) 2009 10 11.79 S 8.6 TK 20.3T 77 4 4 GON Alto del Castro, León (Elongated coma. Astronomical twilight. Altitude: 10 deg.) 2009 9 22.83 S 8.6 TK 20.3T 77 6 3 0.1 110 GON Alto del Castro, León (End of astronomical twilight. Altitude: 7 deg.) 2009 9 20.41 S 8.9 TJ 40.0L 75 3.1 4 YOS Kita-karuizawa, Gunma (Very bright and easy to see even in the low sky. Moderately condensed. It is the 3rd apparition of this comet for me. This is my first comet that I observed in three apparitions.) 2009 9 18.40 S 9.0 AA 10.0B 25 5 SEA Cowra, NSW (Similar or possibly slightly clearer in Swan Band filter.) 2009 9 15.84 S 9.5 TK 20.3T 67 4.5 4 BIV Pico Veleta, Spain 2009 9 14.83 S 9.2 TK 20.3T 77 5 4 GON Alto del Trichero, León (Coma elongated in p.a. 110 deg. End of astronomical twilight. Altitude: 8 deg.) 2009 8 21.87 S 9.8 TK 20.3T 100 5 3 GON Alto del Castro, León (Altitude: 8 deg.) 2009 8 17.84 S 11.7 TK 40.7L 135 1.5 3 BIV Valdrôme 2009 8 15.85 S 11.6 TK 40.7L 58 1.5 3 BIV Valdrôme 2009 8 14.85 S 11.8 TK 40.7L 58 2.0 3 BIV Valdrôme 2009 8 13.85 S 11.4 TK 40.7L 58 1.5 4 BIV Valdrôme 2009 8 11.89 S 10.5 TK 20.3T 77 5 4 GON Alto del Castro, León (Altitude: 10 deg.) 2009 8 11.40 S 8.9 GA 25.4L 71 6 SEA Cowra, NSW 2009 7 14.93 S 12.8 HN 20.3T 206 0.6 6 GON Alto del Castro, León (Comparison stars taken from Henden photometry near 3C279.) 2009 6 20.96 S 13.0 TA 20.3T 133 0.7 6 GON Alto del Castro, León (Nearby field stars checked in DSS. Comparison stars taken from TASS photometry.) 2009 6 17.94 S 13.2 TA 20.3T 133 0.7 5 GON Alto del Castro - Aralla, León (Nearby field stars checked in DSS. Comparison stars taken from TASS photometry.)
2004 11 9.50 S[13.1 HS 40.0L 144 !0.6 YOS Gunma, Japan 2004 10 15.71 S 14.1 AU 40.0L 144 0.9 2 YOS Gunma, Japan 2004 9 17.12 S 12.9 HS 40.7L 116 1.8 3 BIV Ablis 2004 9 10.99 S 12.8:HS 20.3L 63 & 2 1 GUZ Krosno 2004 9 8.958 S 12.0 AU 31.0J 89 1.9 1/ DIJ Sint Annen 2004 9 8.955 S 12.0 AU 31.0J 89 2 1/ BOU Sint Annen 2004 9 8.92 S 13.0:HS 20.3L 63 2 1 GUZ Krosno (Extremely diffuse, at the limit of visibility.) 2004 8 22.047 S 11.3:AU 31.0J 89 2.4 3 DIJ Sint Annen 2004 8 22.040 S 11.8 AU 31.0J 89 2.0 1/ BOU Sint Annen 2004 8 21.77 S 14.1 AU 40.0L 144 1.4 3 YOS Gunma, Japan 2004 8 16.03 S 13.0 HS 40.7L 58 2.0 3 BIV Valdrôme 2004 8 15.95 S 12.1 TK 20.3L 63 2 2 GUZ Krosno 2004 8 15.02 S 12.7 HS 40.7L 58 2.0 3 BIV Valdrôme 2004 8 14.08 S 13.0 HS 40.7L 116 1.6 3 BIV Valdrôme 2004 7 28.051 S 11.3 AU 31.0J 89 1.3 2/ DIJ Sint Annen 2004 7 28.048 S 11.4 AU 31.0J 89 2.2 2/ BOU Sint Annen 2004 7 15.12 S 11.5 TK 20.3T 77 2 2 GON Alto del Castro - Aralla, León 2004 6 24.01 S 10.5:TK 20.3L 63 2 3 GUZ Krosno (Only faintly visible because of low altitude - only 8 deg.) 2004 6 13.11 S 10.5 TK 20.3T 77 2 3 GON Alto del Castro, León 2004 5 15.79 S 9.9 GA 10.0B 25 3 SEA Cowra, NSW 2004 4 15.76 S 10.3 GA 10.0B 25 2 SEA Cowra, NSW (Comet slightly enhanced using Swan Band filter.)