NGC 1818

NGC 1818
哈伯太空望遠鏡拍攝NGC 1818影像 Credit: HST/NASA/ESA.
觀測數據(J2000 曆元)
星座	劍魚座
赤經	05^h 04^m 13.8^s^[1]
赤緯	-66° 26′ 02″^[1]
距離	164 kly
視星等 (V)	9.7B^[1]
物理性質
估計年齡	~25 Myr^[2]
值得注意的特色	少見的年輕球狀星團

NGC 1818是位於大麦哲伦星系內的年輕星團。該天體被認為是球狀星團，但年齡僅約2500萬年，而目前已知的球狀星團年齡幾乎至少在數十億年前形成。

NGC 1818於1826年由天文學家詹姆士·敦洛普發現。

參考資料

^ ^1.0 ^1.1 ^1.2 SIMBAD, Results for NGC 1818, SIMBAD, Centre de Données Astronomiques de Strasbourg, January 8, 2007 [2018-08-20], （原始内容存档于2018-08-20）
^ Johnson, R. A.; Beaulieu, S. F.; Gilmore, G. F.; Hurley, J.; Santiago, B. X.; Tanvir, N. R.; Elson, R. A. W. Young star clusters in the Large Magellanic Cloud: NGC 1805 and 1818. Monthly Notices of the Royal Astronomical Society. 2001, 324 (2): 367. Bibcode:2001MNRAS.324..367J. arXiv:astro-ph/0012389 . doi:10.1046/j.1365-8711.2001.04291.x.

外部連結

维基共享资源上的相關多媒體資源：NGC 1818
NASA Astronomy Picture of the Day: NGC 1818: A Young Globular Cluster (7 March 1998)
NASA Astronomy Picture of the Day: NGC 1818: Pick a Star (15 April 1998)
NASA Astronomy Picture of the Day: NGC 1818: A Young Globular Cluster (11 March 2001)

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