* * * * * C/2011 M1 (LINEAR) * * * * *

Year Mn Day    MM  Mag Ref Scope Pwr coma  DC tail p.a. Obs  Site
2011  9 25.19   S  9.5 TK  20.3T  77   5   2   0.3 320  GON  Alto del Castro - Aralla, León
(Altitude: 10 deg. Mountain location, very clear sky.)
2011  9  7.18   S  9.2 TK  20.3T  77   8   2            GON  Alto del Castro - Aralla, León
(Asymmetric coma. Altitude: 10 deg. Mountain location, very clear sky.)
2011  9  3.18   S  9.2 TK  20.3T  77   7   2            GON  Pandorado, León
(Star of mag. 11.9 [Tycho-2] inside the asymmetric coma. Altitude: 10 deg. Mountain location, very clear sky.)
2011  8 26.89   S  9.5 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. 10.1 [TK].
Mountain location, very clear sky.)
2011  8  4.06   S 10.7 TK  20.3T 100   6   2/           GON  Alto del Castro - Aralla, León
(Several stars inside the coma, the brightest being mag. 13.6 [GSC]. Mountain location, very clear sky.)
2011  7  1.07   S 12.8 HN  20.3T 133  1.2  2/           GON  Alto del Castro - Aralla, León
(Nearby field stars checked in DSS. Comparison stars taken from Henden photometry - EG And field.)