* * * * * C/2009 O2 (Catalina) * * * * *

Year Mn Day MM Mag Ref Scope Pwr coma DC tail p.a. Obs Site 2010 4 6.847 S[11.5 TA 31.0J 109 ! 3 BOU Sint Annen (Position close to ο Per. Nothing seen with magnifications ranging from 58 to 109x. Altitude 24 deg.) 2010 3 18.17 S 11.7 HS 40.7L 58 1.5 1 BIV Blieux 2010 3 17.18 S 11.3 TK 40.7L 58 2.0 1 BIV Blieux 2010 3 16.17 S 11.2 TK 40.7L 58 2.5 1 BIV Blieux 2010 3 15.20 S 9.8 TK 20.3T 77 5 1 GON Aralla, León (From dark mountain skies the coma appears large and diffuse, without central condensation. Several stars inside the coma, the brightest being mag. 11.9 [TK].) 2010 3 15.17 S 11.3 TK 40.7L 58 3.0 2 BIV Blieux 2010 3 10.16 S 10.2 TK 20.3T 77 3 3 GON Alto del Trichero, León (Altitude: 14 deg.) 2010 3 10.07 M 10.8 TK 13.0L 65 2 3 NOV Vikshitsa fields 2010 2 20.24 S 11.9 TK 20.3T 133 1.2 4 GON Armada - Lena, Asturias (Mountain location, very clear sky. Nearby field stars checked in DSS. Motion checked over a 25-min period. Altitude: 22 deg.)