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主題: 新發現天體 Drechsler 21 in Andromeda + DR5 +Catalog Dr 作者: peter 於 2021-02-18 10:24:11 DR5
RA center: 18h 45' 42" DEC center: +33° 50' 9" https://www.astrobin.com/idtqrc/?nc=user Dr21 https://www.astrobin.com/3945l8/0/ RA center: 23h 23' 52" DEC center: +45° 16' 12" http://deeplook.astronomie.at/dr%2021%20-%20alkor.htm The object was discovered in May 2019 by Marcel Drechsler. Almost in the middle there is a white dwarf. It is probably a planetary nebula. At the lower right edge of the PN there is a newly discovered nebula - DrBl 1 Dr21 應該 May 2019 by Marcel Drechsler stDr => https://familystar.org.tw/index.php?option=com_smf&Itemid=45&topic=34849.0 主題: 回覆： 新發現天體 Drechsler 21 in Andromeda + DR5 + 作者: peter 於 2021-02-18 10:26:34 這 dr12 好像跟 Catalog Dr 不同 RA DEC
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