海卫九
海卫九（Halimede, S/2002 N 1）是环绕海王星运行的一颗不規則衛星，于2002年8月14日由馬修·霍爾曼等学者发现[1]。它是海王星軌道離心率第二大的衛星，亦是軌道傾角第三大的衛星[2]。
Irregular satellites of Neptune.
參考
- Matthew J. Holman, J. J. Kavelaars, Tommy Grav, Brett J. Gladman, Wesley C. Fraser, Dan Milisavljevic, Philip D. Nicholson, Joseph A. Burns, Valerio Carruba, Jean-Marc Petit, Philippe Rousselot, Oliver Mousis, Brian G. Marsden, Robert A. Jacobson. . Nature. 2004/08, 430 (7002): 865–867 [2018-04-02]. ISSN 1476-4687. doi:10.1038/nature02832 （英语）.
- Williams, Dr. David R. . NASA (National Space Science Data Center). 2008-01-22 [2011-11-03]. （原始内容存档于2011-10-05）.
- MPC: Natural Satellites Ephemeris Service Archive.is的存檔，存档日期2011-05-20
- Mean orbital parameters from JPL （页面存档备份，存于）
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