* * * * * P/2010 V1 (Ikeya-Murakami) * * * * *

Year Mn Day MM Mag Ref Scope Pwr coma DC tail p.a. Obs Site 2010 12 4.83 S[11.9 AU 40.0L 144 !1.6 YOS Kita-karuizawa, Gunma (Not visible, although some reported it looks large and bright visually still now under the clear sky. It has faded out very quickly only within one month. It was located near Saturn last time, and near Venus this time. So it was easy to move my telescope to the comet's field.) 2010 11 19.31 S 8.7 TK 10.0B 20 6 2 GOI Araçatuba 2010 11 13.24 S 8.2 TK 10.0B 25 10 2 GON Collada Llomena - Ponga, Asturias 2010 11 13.23 S 8.7 TK 20.3T 77 8 2 0.1 290 GON Collada Llomena - Ponga, Asturias (Parabolic-shaped coma, observable for 8' along the major axis, latus rectum: 1.5'. Thin tail embedded in the coma. Altitude: 15 deg. Zodiacal light. Mountain location, very clear sky.) 2010 11 11.201 aS 8.5 TK 15.5L 50 5 2/ DIJ Burlage 2010 11 11.188 aS 8.3 TK 8.0B 15 5 3 DIJ Burlage 2010 11 9.63 S 9.5 TK 20.3L 40 3.0 2 0.1 280 BIV Mauna-Kea, Hawaii 2010 11 8.63 S 9.2 TK 20.3L 40 3.0 3 0.1 280 BIV Mauna-Kea, Hawaii 2010 11 8.208 S 7.6:TK 8.0B 15 3/ DIJ Burlage 2010 11 8.208 S 8.0:TK 31.0J 72 & 3 3 BOU Burlage, Germany (Briefly observed in short clearing between clouds. Fairly uniform coma with slight condensation.) 2010 11 7.63 S 8.8 TK 20.3L 40 3.5 3 0.1 290 BIV Mauna-Kea, Hawaii 2010 11 7.31 S 8.2 TK 10.0B 20 2 4 GOI Araçatuba 2010 11 7.08 S 8.2 TK 6.0R 45 4 4 SID Korenovsk 2010 11 6.82 S 9.0 TJ 40.0L 75 4.5 6 YOS Kita-karuizawa, Gunma 2010 11 6.08 S 7.8 TK 6.0R 45 3 4 SID Korenovsk 2010 11 5.82 S 8.5 TJ 40.0L 75 3.5 7 YOS Kita-karuizawa, Gunma (Bright, very strongly condensed, and easy to see. It looks small. It was located near Saturn, so easy to find with a telescope. The low sky was clear. I could find Saturn and γ Vir soon after they rose over the horizon.) 2010 11 5.31 S 8.2:TK 10.0B 20 1 4/ GOI Araçatuba (Nautical twilight, comet altitude = 8°.) 2010 11 4.23 S 7.6 TK 5.0B 10 5 5 GON Alto del Castro - Aralla, León 2010 11 4.22 S 7.8 TK 20.3T 77 4.5 4/ GON Alto del Castro - Aralla, León