10月3日早晨,半个月前发现第一颗超新星侯选体的廖家铭小朋友在PSP超新星巡天计划中又发现一颗疑似超新星,孙国佑验证确认为一颗未知目标,随后测量上报.
POSSIBLE SUPERNOVA IN NGC 582
Jiaming Liao(Hefei,Anhui,China),Guoyou Sun(Wenzhou,Zhejiang,China) and Xing Gao (Urumqi,Xinjiang,China), report the discovery of a possible supernova (mag approximately 16.5) on one 40-s survey image (limiting mag about 19.0) taken by Xing Gao in Xingming Observation Sky Survey(C42) around Oct.02.92241 UT. using an unfiltered CCD ( + Celestron C14 Schmidt-Cassegrain telescope D=356-mm @f/6.9 ). The new object approximately located at R.A.=01h 31m 59s.45 Decl.=+33 28 45.8(equinox 2000.0). Which is about 15.8" east and 10.3" north of the center of the NGC 582. Nothing is visible at this position on archival images taken on Sept.18(limiting mag 19.0), or on the DSS(POSS-II Red) from Nov.19,1989(limiting mag about 19.5).
NET UCAC-A2.0
PSP15A C2015 10 02.92241 01 31 59.45 +33 28 45.8 16.5 V C42
All images can be seen from: http://www.xjltp.com/XOSS/PSP15A/PSP15A.htm
C42,Xingming Observatory,Mt. Nanshan. Observers J.Liao,G.Sun,X.Gao,Measurers G.Sun 0.36-m f/6.9 Schmidt-Cassegrain telescope and CCD.
这是廖小朋友发现的第二个超新星侯选体,至此小朋友已经看图近10000张,是PSP项目组里看图最多的人,小朋友的执着精神值得钦佩。而且不得不佩服小朋友的运气超佳,要知道正常情况下,星明天文台全年只能发现近10颗超新星。而且小朋友的第一颗超新星侯选体还在纠结光谱验证能否确定,第二颗又来了,哈哈。
以下是廖家铭发现时的图片