NGC 2232

NGC 2232
	NGC 2232 （摘自恒星库）
觀測資料 (J2000 曆元)
星座	麒麟座
赤經	06h 27m 15s[1]
赤緯	–04° 45′ 30″[1]
距離	1,060 ly（325 pc）[2]
視星等 (V)	3.9[3]
視大小 (V)	30′ [3]
物理特徵
質量	< 100[4] M☉
半徑	~15 ly[4]
估計年齡	30.9 Myr[2]
其他特徵	Cr 93, C 0624-047[5]

NGC 2232是一个位于天球赤道附近的麒麟座，以麒麟-10为中心的一个明亮的疏散星团。[3] 它在猎户座大星云附近的古爾德帶，[6]距太阳约1060光年。[2]该星系的平均徑向速度为7004266000000000000♠26.6±0.77 km/s。[7] NGC 2232 是距离太阳最近的疏散星团之一，是一个研究年轻恒星向主序星过渡的一个潜在目标之一。[8]

NGC 2232在天图的位置

星团的角半径为6998104719755119660♠36′，核心角半径为6997209439510239320♠7.2′。是一个由20个集中恒星组成的稀疏簇[2] 。它被认为是一个超级太阳星团，该星团的恒星的铁含量通常比太阳更高，金屬量为6999220000000000000♠0.22±0.09或6999320000000000000♠0.32±0.08，取决于所做的假设。[7] 至少四个恒星紅外過量波长为8μm，为暖尘埃，其中HD 45435的波长超过24μm.，可能说明恒星处于早期演变阶段。[6]该星团中只有一颗恒星是特殊恆星。[9]

参考

Wu, Zhen-Yu; et al, , Monthly Notices of the Royal Astronomical Society, November 2009, 399 (4): 2146–2164, Bibcode:2009MNRAS.399.2146W, S2CID 6066790, arXiv:0909.3737 , doi:10.1111/j.1365-2966.2009.15416.x.
Kharchenko, N. V.; et al, , Astronomy and Astrophysics, 2005, 438 (3): 1163–1173, Bibcode:2005A&A...438.1163K, S2CID 9079873, arXiv:astro-ph/0501674 , doi:10.1051/0004-6361:20042523.
Dunlop, Storm. . Collins. 2005. ISBN 978-0-00-717223-8.
Finlay, Warren H., , The Patrick Moore Practical Astronomy Series 2nd, Springer Science & Business Media: 188, 2014, ISBN 978-3-319-03169-9.
. SIMBAD. 斯特拉斯堡天文資料中心. [2020-04-12].
Currie, Thayne; et al, , The Astrophysical Journal, November 2008, 688 (1): 597–615, Bibcode:2008ApJ...688..597C, S2CID 28733060, arXiv:0807.2056 , doi:10.1086/591842.
Monroe, TalaWanda R.; Pilachowski, Catherine A., , The Astronomical Journal, December 2010, 140 (6): 2109–2123, Bibcode:2010AJ....140.2109M, S2CID 119241382, arXiv:1010.0739 , doi:10.1088/0004-6256/140/6/2109.
Orban, Chris; Patten, Brian, , Greenbelt, MD, United States: NASA Goddard Space Flight Center, January 1, 2004 [2020-04-13].
Jenkner, H.; Maitzen, H. M., , Astronomy and Astrophysics, Supplemental Series, November 1987, 71: 255–261, Bibcode:1987A&AS...71..255J.

外部链接

维基共享资源上的相關多媒體資源：NGC 2232
Pang, Xiaoying; Li, Yuqian; Tang, Shih-Yun; Pasquato, Mario; Kouwenhoven, M. B. N. . The Astrophysical Journal. 2020, 900 (1): L4. Bibcode:2020ApJ...900L...4P. S2CID 221083377. arXiv:2008.02803 . doi:10.3847/2041-8213/abad28.

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[Wu2009-1] Wu, Zhen-Yu; et al, , Monthly Notices of the Royal Astronomical Society, November 2009, 399 (4): 2146–2164, Bibcode:2009MNRAS.399.2146W, S2CID 6066790, arXiv:0909.3737 , doi:10.1111/j.1365-2966.2009.15416.x.

[Kharchenko2005-2] Kharchenko, N. V.; et al, , Astronomy and Astrophysics, 2005, 438 (3): 1163–1173, Bibcode:2005A&A...438.1163K, S2CID 9079873, arXiv:astro-ph/0501674 , doi:10.1051/0004-6361:20042523.

[nightsky-3] Dunlop, Storm. . Collins. 2005. ISBN 978-0-00-717223-8.

[Finlay2006-4] Finlay, Warren H., , The Patrick Moore Practical Astronomy Series 2nd, Springer Science & Business Media: 188, 2014, ISBN 978-3-319-03169-9.

[SIMBAD-5] . SIMBAD. 斯特拉斯堡天文資料中心. [2020-04-12].

[Currie2008-6] Currie, Thayne; et al, , The Astrophysical Journal, November 2008, 688 (1): 597–615, Bibcode:2008ApJ...688..597C, S2CID 28733060, arXiv:0807.2056 , doi:10.1086/591842.

[Monroe2010-7] Monroe, TalaWanda R.; Pilachowski, Catherine A., , The Astronomical Journal, December 2010, 140 (6): 2109–2123, Bibcode:2010AJ....140.2109M, S2CID 119241382, arXiv:1010.0739 , doi:10.1088/0004-6256/140/6/2109.

[Orban2004-8] Orban, Chris; Patten, Brian, , Greenbelt, MD, United States: NASA Goddard Space Flight Center, January 1, 2004 [2020-04-13].

[Jenkner1987-9] Jenkner, H.; Maitzen, H. M., , Astronomy and Astrophysics, Supplemental Series, November 1987, 71: 255–261, Bibcode:1987A&AS...71..255J.