| 词条 | NGC 2291 |
| 释义 |
| name = NGC 2291 | image = File:NGC 2291.jpg | caption = DSS image of NGC 2291 | epoch = | type = SA0 [1] | ra = {{RA|06|50|58.6}}[1] | dec = {{DEC|33|31|30}}[1] | dist_ly = | constellation name = Gemini | names = PGC 19719 }}NGC 2291 is a lenticular galaxy in the constellation Gemini. It was discovered by John Herschel on January 22, 1827.[2] The visual magnitude is 13, and the apparent size is 1.0 by 0.8 arc minutes.[2] External links
References1. ^1 2 NED, NGC 2291 (accessed 2012-03-20) {{Ngc25}}{{galaxy-stub}}2. ^1 {{cite web|last1=Seligman|first1=Courtney|title=Celestial Atlas: NGC Objects: NGC 2250 - 2299|url=http://cseligman.com/text/atlas/ngc22a.htm#2291|website=cseligman.com|accessdate=10 July 2015|archiveurl=https://www.webcitation.org/6ZuAWKn8D|archivedate=10 July 2015}} 3 : Gemini (constellation)|Unbarred lenticular galaxies|NGC objects |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。