
Rolando Ligustri in Italy caught Comet C/2013 A1 Siding Spring passing nearly in front of M6 – sometimes called the Butterfly Cluster – in the tail of the constellation Scorpius on October 9. Professional astronomers recently announced the comet began losing brightness in September. But it is still beautiful, and still has a sweeping comet tail. Its close encounter with the planet Mars on October 19 – one week from today – is much anticipated.
Everything you need to know about the October 19 comet / Mars encounter

Bottom line: Comet C/2013 A1 Siding Spring near the star cluster M6 on October 9, 2014.
Like what you read?
Subscribe and receive daily news delivered to your inbox.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
More from
Deborah Byrd
View All
Visible planets and night sky guide for October
October 2, 2026
Stargazing tips! 10 great tips for beginning astronomers
October 1, 2026
Mars calendar year begins September 30: Happy New Year, Mars!
September 30, 2026
Alpha Cephei, or Alderamin, is a fast-spinning star
September 30, 2026
