2010年第一颗彗星C/2010 A1 (Hill)
2010年新发现的第一颗彗星是一颗今年7月份可以达到11等的可能周期彗星http://www.comethunter.de/index.html
R. E. Hill (LPL) reports his discovery of a new comet on Jan. 6, 2010, in the course of the Catalina Sky Survey. After placement on the NEO Confirmation Page E. C. Beshore (Mt. Lemmon), Y. Ikari (Moriyama), P. Birtwhistle (Great Shefford), H. Sato (remotely from near Mayhill), and W. H. Ryan (Magdalena Ridge) were able to confirm the cometary nature of the 17.5m object. The first and preliminary orbit for comet C/2010 A1 (Hill) indicates perihelion on Jun. 24, 2010, at about 1.0 AU. The comet might be of short period. This is the 84th comet for the Catalina Sky Survey and the 20th for Hill. It might reach 11m in July. (www.harvard.edu/iauc/09100/09104.html]IAUC 9104, subscription required, www.harvard.edu/mpec/K10/K10A31.html]MPEC 2010-A31)
Orbital elements:
C/2010 A1 (Hill)
T 2010 June 24.055 TT MPC
q 1.02031 (2000.0) P Q
Peri.219.047 -0.706221 +0.707655
Node 6.140 -0.587593 -0.568637
e 1.0 Incl. 11.782 -0.394951 -0.419377
From 25 observations 2010 Jan. 6-7.
Ephemeris:
C/2010 A1 (Hill)
Date TT R. A. (2000) Decl. Delta r Elong.Phase m1 m2
2010 01 04 09 12.98 +32 52.6 1.843 2.731 148.7 10.817.7
2010 01 14 09 05.39 +33 58.8 1.678 2.614 157.7 8.217.3
2010 01 24 08 54.30 +35 03.3 1.539 2.496 162.9 6.716.9
2010 02 03 08 40.27 +35 55.5 1.428 2.378 159.9 8.216.5
2010 02 13 08 24.53 +36 24.4 1.344 2.258 150.8 12.316.2
2010 02 23 08 09.03 +36 22.1 1.286 2.138 139.7 17.415.8
2010 03 05 07 55.83 +35 47.0 1.247 2.018 128.3 22.715.5
2010 03 15 07 46.56 +34 42.8 1.223 1.897 117.3 27.815.2
2010 03 25 07 42.19 +33 15.2 1.207 1.778 107.1 32.414.9 亮度还是不够啊~~~ 好久没见彗星了 哦，好久没见亮彗星了…… 太暗了,一般的镜子估计是看不到. 11等，10CM口径以上的都可以，拍照的话，老皮不是8CM就OK了吗 北半球观测条件不太好，等6月份试一试吧
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