认证新彗星ItKa01

Colored image of ItKa01 by Lulin One-meter Telescope, measured and proceed by Q.-z. Ye
今晚正打算延续前几天2310睡觉计划的光荣传统,正要睡觉,赵晋突然QQ说有颗很亮的新彗星刚被发现~ (哎,离职LUSS之后基本都不看NEOCP了,退化了~)随手一看,是日本人2小时前刚刚发现的,还在等待确认。哎,日本人,勤奋精神真是没说的…… 鹿林正好在台风边缘,天气也勉强可以,就请山上助理看看有没有时间,结果答复说一米镜有时间,哈哈,对着目标区域一阵狂轰,给CBAT写了份报告:
H.-Y. Hsiao and I (Q.-z. Ye) had just taken several 30-second exposured images of ItKa01 by the 1.02-m reflector, located at Lulin Observatory, with Johnson B, V, R filter and clear filter. Seeing is around 1.1". Initial magnitude measurements showed the brightness of ItKa01 is 17.3, 15.3 and 16.1 on B, V and R band respectively. A 70-80" coma was spotted, with a wide, short tail to P.A.~110deg at a length of 1'.
A colored image combined with C, B, V and R band can be seen at http://yeiht.y234.cn/wordpress/?p=717.
ItKa01 C2008 09 10.68495 20 39 27.18 -01 20 29.5 17.3 D35
ItKa01 C2008 09 10.68581 20 39 27.26 -01 20 31.5 15.3 V D35
ItKa01 C2008 09 10.68667 20 39 27.29 -01 20 31.9 16.3 R D35
ItKa01 C2008 09 10.68966 20 39 27.55 -01 20 36.7 16.1 R D35
ItKa01 C2008 09 10.69062 20 39 27.60 -01 20 37.5 15.9 R D35
这个彗星挺彗星样的,没劲儿,一米镜发挥不出什么优势来。回头一看,貌似是中野主一已经用东京天文台的1米也追到了这个目标,彗星无疑了。初步的轨道显示是个短周期?不知道是不是,哎,大约让日本人钓到大鱼了…… 把三个通道叠加了一下,照片也贴在这里给大家玩赏玩赏吧。
OK,这一个lunar period的任务结束,收工,过中秋~~~ 提前祝各位中秋节快乐~~~
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本文发表于2008 September 11 1:58,归类为叶夜速写, 观星手记。您可以通过RSS 2.0来订阅有关的评论。 您也可以留下评论或在您自己的站点跟踪引用。 This entry was posted on 2008 September 11 at 1:58 and filed under 叶夜速写, 观星手记. Follow any responses to this post through RSS 2.0. You can leave a response or trackback from your own site. |
约4年前 about 4 years ago
已经离职LUSS了?
约4年前 about 4 years ago
居然是D/1892 R2... 一百多年前丢失的幽灵彗星...
4月开始就停掉LUSS了...