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Pages: 1 buddyjesus Carpal Tunnel Reged: 07/07/10 Loc: Davison, Michigan LRO question       #5291780 - 06/27/12 03:48 PM Edit   Reply   Quote Quick Reply   There was a naked eye impact of the moon observed by the Canterbury monks and recounted in Carl Sagan's Cosmos that made a life long lasting impression to me. Has this relatively fresh crater been identified? Post Extras:       David Knisely Postmaster Reged: 04/19/04 Loc: southeastern Nebraska Re: LRO question [Re: buddyjesus]       #5291861 - 06/27/12 04:54 PM Edit   Reply   Quote Quick Reply   Quote: There was a naked eye impact of the moon observed by the Canterbury monks and recounted in Carl Sagan's Cosmos that made a life long lasting impression to me. Has this relatively fresh crater been identified? This account has been questioned recently as to what it actually represented. Some believe it was just a bright "head-on" meteor that left a bit of a trail, or some sort of atmospheric phenomena. The proposed site for the impact was the far side crater Giordano Bruno, but recent studies have indicated that it has an age far in excess of 800 years, so it probably could not have been the result of the event allegedly recorded in the account given by the monks. In addition, some have indicated that an impact capable of producing a crater as large as Bruno would also have showered the Earth with a lot of debris, resulting in a spectacular meteor shower some time later. None was ever recorded. Clear skies to you. Post Extras:       brianb11213 Postmaster Reged: 02/25/09 Loc: 55.215N 6.554W Re: LRO question [Re: David Knisely]       #5291868 - 06/27/12 04:59 PM Edit   Reply   Quote Quick Reply   AFAIK the only crater known which has a historically accurate age is one known to have been formed by the impact of a SIVB third stage from one of the Apollo missions. It is about 25 feet across and therefore not resolvable from ground based or earth orbiting telescopes. Post Extras:       David Knisely Postmaster Reged: 04/19/04 Loc: southeastern Nebraska Re: LRO question [Re: brianb11213]       #5292730 - 06/28/12 05:09 AM Edit   Reply   Quote Quick Reply   Quote: AFAIK the only crater known which has a historically accurate age is one known to have been formed by the impact of a SIVB third stage from one of the Apollo missions. It is about 25 feet across and therefore not resolvable from ground based or earth orbiting telescopes. This kind of helps settle the question: http://adsabs.harvard.edu/abs/2009M%26PS...44.1115M Based on crater counts for small impact craters that overly the ejecta from Bruno, the estimated age range for the 22 km diameter crater is between 1 million years and 10 million years. That kind of rules out Bruno being a crater that was formed during historic times. Clear skies to you. Post Extras:       Tim2723 The Moon Guy Reged: 02/19/04 Loc: Northern New Jersey Re: LRO question [Re: David Knisely]       #5292806 - 06/28/12 07:53 AM Edit   Reply   Quote Quick Reply   Because you mention the story as having a life-long, lasting impression for you, I find this topic interesting. It has made a lasting impression for me as well. One of my Lunar interests involves the influence that the Moon has had on our cultural thinking. The story of those Canterbury monks is, at least in human terms, very old. It has entered into our collective mythology of the Moon. With the arguable exception of the Sun itself, the Moon has made a greater contribution to our cultural mythology than any other celestial object. The story that Dr. Sagan relates has been with us for a long time and will continue with us, possibly forever. Post Extras:       Pages: 1

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