* * * * * P/2010 H2 (Vales) * * * * *

Year Mn Day MM Mag Ref Scope Pwr coma DC tail p.a. Obs Site 2010 6 3.95 S 11.8 TK 20.3T 77 2.5 2 GON Alto del Trichero - Soto y Amío, León (Asymmetric coma elongated in N-S direction.) 2010 5 22.06 S 11.3 TK 20.3T 77 3 2/ GON Alto del Castro - Aralla, León (Asymmetric coma elongated in N-S direction. Better observing conditions from a higher mountain location allowed a brighter estimate than five days ago.) 2010 5 21.06 S 12.5 AU 22.0L 160 2 2/ GOI Araçatuba 2010 5 17.963 S 12.2 TA 31.0J 89 2.0 1/ BOU Lauwersoog 2010 5 17.06 S 12.7 AU 22.0L 160 1 3/ GOI Araçatuba 2010 5 16.99 S 11.5 TK 20.3T 77 2.5 3 GON Cueto Rosales - Riello, León (Asymmetric coma elongated in N-S direction.) 2010 5 14.16 S 12.5 TK 22.0L 160 1.2 3 GOI Araçatuba 2010 5 13.12 S 12.5:TK 22.0L 160 1 3 GOI Araçatuba 2010 5 12.49 S 12.9 GA 25.4L 71 1 SEA Cowra, NSW 2010 5 5.94 S 11.6 TA 20.3T 100 1.7 4 GON Pandorado, León (Elongated assymetric coma.) 2010 5 5.912 S 11.9 TA 31.0J 89 2.2 2/ BOU Lauwersoog 2010 5 2.55 S 11.7 TA 40.0L 75 1.9 5 YOS Kita-karuizawa, Gunma (Because it was overlapping a 13.2-mag star in the evening, I waited a while and observed after it moved away from the star.) 2010 5 1.935 S 12.1 TA 15.5L 83 1 6 DIJ Burlage 2010 5 1.68 S 12.5 TK 13.0L 85 < 1 2 SID Korenovsk 2010 5 1.50 S 11.7 TA 40.0L 75 1.9 6 YOS Kita-karuizawa, Gunma (Now it looks cometary, like an ordinary comet. It is hard to imagine that it was completely stellar 2 weeks ago. Strongly condensed and easy to see.) 2010 4 30.897 S 12.1 TA 31.0J 89 1.6 3/ BOU Sint Annen 2010 4 30.63 S 12.2 TK 13.0L 85 < 1 2 SID Korenovsk 2010 4 23.97 S 12.0 TK 40.7L 135 1.1 5 BIV Versailles 2010 4 22.934 M 11.8 TA 31.0J 89 1.2 6/ BOU Sint Annen (Moonlight. Comet well visible as a small well condensed nebula in a very transparant sky.) 2010 4 21.997 B 11.9 TA 15.5L 50 7/ DIJ Burlage 2010 4 20.89 S 12.0 TK 40.7L 135 1.0 6 BIV Versailles 2010 4 19.95 M 11.7 TK 13.0L 108 0.7 7 NOV Konchezero 2010 4 19.78 S 11.5 TK 13.0L 85 < 1 2 SID Korenovsk 2010 4 18.88 B 12.1 TK 40.7L 135 0.2 8 BIV Versailles 2010 4 18.03 B 12.0 TK 25.6L 97 0.1 8 BIV Versailles 2010 4 17.95 B 12.1 TK 40.7L 135 0.1 9 BIV Versailles 2010 4 17.922 B 12.2 TA 31.0J 72 8/ BOU Lauwersoog (Comet looks slightly larger and softer than nearby stars of similar brightness. At 109x, there appeared to be a faint coma of about 0.4' diameter.) 2010 4 16.98 I 12.7 HN 20.3T 100 9 GON La Cruz - Lieres, Asturias (Stellar appearance. Nearby field stars checked in DSS. Comparison stars taken from Henden photometry - HS618.) 2010 4 16.894 B 12.7 TA 31.0J 89 9 BOU Lauwersoog (Stellar object, also at 155x.)