* * * * * C/2011 A3 (Gibbs) * * * * *

Year Mn Day MM Mag Ref Scope Pwr coma DC tail p.a. Obs Site 2011 10 7.41 S[10.4 TJ 40.0L 144 !1.2 YOS Kita-karuizawa, Gunma (Some visual observers reported that it is a 10-mag large diffuse comet. But I could not see the comet. The background sky was bright due to strong moonlight.) 2011 9 24.83 S 9.7 TK 20.3T 77 6 2/ 0.3 80 GON Alto del Castro - Aralla, León (Altitude: 18 deg. Mountain location, very clear sky.) 2011 9 19.84 S 9.7 TK 20.3T 77 6 2/ 0.2 60 GON Alto del Castro - Aralla, León (Altitude: 16 deg. Mountain location, very clear sky.) 2011 8 28.94 S 10.8:TK 22.0L 160 2.5 2 GOI Araçatuba 2011 8 26.88 S 10.3 TK 20.3T 77 6 2/ GON Alto del Castro - Aralla, León (6' coma with faint outer region. Several stars inside the coma, the brightest being mag. 12.3 [GSC]. Mountain location, very clear sky.) 2011 8 3.92 S 10.8 TK 20.3T 133 5 2/ GON Alto del Castro - Aralla, León (Much brighter than expected. 5' coma with faint outer region. Mountain location, very clear sky.)