NGC 2439

NGC 2439
NGC 2439
	NGC 2439（取自Stellarium）
觀測資料 (J2000 曆元)
星座	船尾座
赤經	07h 40.8m
赤緯	−31° 41′
距離	3.855 kpc（12.57 kly）
視星等 (V)	6.9
視大小 (V)	10″
物理特徵
其他特徵	C 0738-315
	相關條目：疏散星團、NGC天體表

NGC 2439是位於船尾座的一個疏散星團。它的視星等為6.9等，大小為10弧分，使用小望遠鏡就能看見^[3]。這個星團距離太陽系大約3,855秒差距，年齡大約1,000萬地球年^[2]^[4]。在觀測上，這個星團有兩顆B型星的超巨星。較靠近我們的一顆距離約為1,030秒差距，較遠的一顆距離3,200秒差距^[5]。

參考資料

^ ^1.0 ^1.1 ^1.2 ^1.3 NGC 2439 -- Open (galactic) Cluster. SIMBAD. Centre de Données astronomiques de Strasbourg. [2011-04-07]. （原始內容存檔於2020-02-05）.
^ ^2.0 ^2.1 Piskunov, A. E.; Schilbach, E.; Kharchenko, N. V.; Röser, S.; et al. Tidal radii and masses of open clusters. Astronomy and Astrophysics. January 2008, 477 (1): 165–172. Bibcode:2008A&A...477..165P. doi:10.1051/0004-6361:20078525. See online data.
^ ^3.0 ^3.1 Bakich, Michael E. 1001 Celestial Wonders to See Before You Die: The Best Sky Objects for Star Gazers. Patrick Moore's Practical Astronomy Series. Springer. 2010: 29. ISBN 978-1-4419-1776-8.
^ Dias W.S.; Alessi B.S.; Moitinho A.; Lepine J.R.D. New catalog of optically visible open clusters and candidates. Astronomy and Astrophysics. July 2002, 389 (3): 871–873. Bibcode:2002A&A...389..871D. arXiv:astro-ph/0203351 . doi:10.1051/0004-6361:20020668. Note: see the VizieR catalogue B/ocl （頁面存檔備份，存於網際網路檔案館）.
^ Kaltcheva, N. T.; Hilditch, R. W. The distribution of bright OB stars in the Canis Major-Puppis-Vela region of the Milky Way. Monthly Notices of the Royal Astronomical Society. March 2000, 312 (4): 753–768. Bibcode:2000MNRAS.312..753K. doi:10.1046/j.1365-8711.2000.03170.x.

外部連結

維基共享資源上的相關多媒體資源：NGC 2439

[SIMBAD-1] 1.0 ^1.1 ^1.2 ^1.3 NGC 2439 -- Open (galactic) Cluster. SIMBAD. Centre de Données astronomiques de Strasbourg. [2011-04-07]. （原始內容存檔於2020-02-05）.

[aaa477_1_165-2] 2.0 ^2.1 Piskunov, A. E.; Schilbach, E.; Kharchenko, N. V.; Röser, S.; et al. Tidal radii and masses of open clusters. Astronomy and Astrophysics. January 2008, 477 (1): 165–172. Bibcode:2008A&A...477..165P. doi:10.1051/0004-6361:20078525. See online data.

[bakich2010-3] 3.0 ^3.1 Bakich, Michael E. 1001 Celestial Wonders to See Before You Die: The Best Sky Objects for Star Gazers. Patrick Moore's Practical Astronomy Series. Springer. 2010: 29. ISBN 978-1-4419-1776-8.

[aaa389-4] Dias W.S.; Alessi B.S.; Moitinho A.; Lepine J.R.D. New catalog of optically visible open clusters and candidates. Astronomy and Astrophysics. July 2002, 389 (3): 871–873. Bibcode:2002A&A...389..871D. arXiv:astro-ph/0203351 . doi:10.1051/0004-6361:20020668. Note: see the VizieR catalogue B/ocl （頁面存檔備份，存於網際網路檔案館）.

[mnras312_4_753-5] Kaltcheva, N. T.; Hilditch, R. W. The distribution of bright OB stars in the Canis Major-Puppis-Vela region of the Milky Way. Monthly Notices of the Royal Astronomical Society. March 2000, 312 (4): 753–768. Bibcode:2000MNRAS.312..753K. doi:10.1046/j.1365-8711.2000.03170.x.

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