C/2013 A1

外部链接
*[http://www.aerith.net/comet/catalog/2013A1/2013A1.html C/2013 A1 ( Siding Spring )] – Seiichi Yoshida @ aerith.net
*[https://www.webcitation.org/6TGghTq00?url=http://scully.cfa.harvard.edu/cgi-bin/returnprepeph.cgi?d=c Elements and Ephemeris for C/2013 A1 (Siding Spring)] – 小行星中心
*[http://astroblogger.blogspot.com.au/2013/02/will-comet-c2013-a1-siding-spring-hit.html Will Comet C/2013 A1 (Siding Spring) Hit Mars?] – Ian Musgrave (February 02, 2013)
*[http://news.discovery.com/space/astronomy/could-a-comet-hit-mars-in-2014-130225.htm Could a Comet Hit Mars in 2014?] – Ian O'Neill (February 25, 2013)
*[http://astroblogger.blogspot.com.au/2013/02/update-on-comet-c2013-a1-siding-spring.html Update on Comet C/2013 A1 (Siding Spring) and a possible Mars Impact] – Ian Musgrave (February 27, 2013)
*[http://asteroblog.blogspot.com/2013/01/c2013-a1-siding-spring-first-comet-of.html C/2013 A1 Siding Spring, the first comet of the year] – La Cañada Observatory (January 5, 2013)
*[http://astrobob.areavoices.com/2013/02/27/will-a-comet-clobber-mars-next-year Will a comet clobber Mars next year?] – AstroBob (February 27, 2013)
*[http://www.brera.mi.astro.it/sormano/ceip.html Close Encounters with the Inner Planets] at Sormano Astronomical Observatory