| 词条 | NGC 2451 |
| 释义 |
| image = NGC_2451.png | caption = NGC 2451 (taken from Stellarium) | name = NGC 2451 | type = Open Cluster | epoch = J2000 | ra = {{RA|07|45|24.0}}[1] | dec = {{DEC|−37|57|00}}[1] | dist_ly = 600 ly (NGC 2451A), 1,200 ly (NGC 2451B)[1] | appmag_v = 3[1] | size_v = 45″[1] | radius_ly = | absmag_v = | constellation = Puppis | notes = | names = }}NGC 2451 is an open cluster in the Puppis constellation, probably discovered by Giovanni Battista Hodierna before 1654 and John Herschel in 1835.[1] In 1994, it was postulated that this was actually two open clusters that lie along the same line of sight. This was confirmed in 1996. The respective clusters are labeled NGC 2451 A and NGC 2451 B, and they are located at distances of 600 and 1,200 light-years, respectively.[2] References1. ^1 2 3 4 5 {{cite web|last1=Seligman|first1=Courtney|title=Celestial Atlas: NGC Objects: NGC 2450 - 2499|url=http://cseligman.com/text/atlas/ngc24a.htm#2451|website=cseligman.com|accessdate=10 July 2015|archiveurl=https://www.webcitation.org/6Zuy1gwMu?url=http://cseligman.com/text/atlas/ngc24a.htm#2451|archivedate=10 July 2015|deadurl=yes|df=}} 2. ^{{cite journal | author=Pöhnl, H. | author2=Maitzen, H. M. | author3=Paunzen, E. | title=On the evolutionary status of chemically peculiar stars of the upper main sequence | journal=Astronomy and Astrophysics | volume=402 | pages=247–252 |date=April 2003 | doi=10.1051/0004-6361:20030266 | bibcode=2003A&A...402..247P |arxiv = astro-ph/0303189 }} External links
3 : NGC objects|Open clusters|Puppis |
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