哈靈頓彗星

• Google Books

外部連結
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• [http://www.aerith.net/comet/catalog/0051P/index.html 51P/Harrington] – Seiichi Yoshida @ aerith.net
• [https://web.archive.org/web/20141030001021/http://scully.cfa.harvard.edu/cgi-bin/returnprepeph.cgi?d=c&o=0051P Elements and Ephemeris for 51P/Harrington] – Minor Planet Center
• [http://www.minorplanetcenter.net/db_search/show_object?object_id=51P 51P/Harrington] at the Minor Planet Center's Database
• [http://jcometobs.web.fc2.com/pcmtn/0051p.htm 51P/Harrington] – Kazuo Kinoshita (2008 Dec. 21)
• [http://cometography.com/pcomets/051p.html 51P/Harrington] – Gary W. Kronk's Cometography