117P/赫琳-羅馬-阿魯彗星

117P/赫琳-羅馬-阿魯彗星（117P/Helin–Roman–Alu）是太陽系中一顆週期彗星。117P/赫琳-羅馬-阿魯彗星是一顆準希爾達彗星。

參考資料
外部連結
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• [http://www.aerith.net/comet/catalog/0117P/index.html 117P/Helin-Roman-Alu 1] – Seiichi Yoshida @ aerith.net
• [https://web.archive.org/web/20160304113136/http://scully.cfa.harvard.edu/cgi-bin/returnprepeph.cgi?d=c&o=0117P Elements and Ephemeris for 117P/Helin-Roman-Alu] – Minor Planet Center
• [http://cometography.com/pcomets/117p.html 117P at Kronk's Cometography]
• [http://rogergroom.com/astro-photography/comet-photography/photographs-of-comet-117phelin-roman-alu/ Images of 117P by Roger Groom]