Short blurb on Messier and Messier A with a nice hi-res link.
http://www.hq.nasa.gov/office/pao/History/SP-362/ch5.2.htm
George Nicula
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Tuesday, August 22, 2006 4:14 PM
Subject: Re: [meteorite-list] What is this lunar crater?
"Anyone have a name/location for the crater in the photo with this
article,
where the meteoroid apparently skidded across the surface, and maybe
bounced
once?"
http://news.nationalgeographic.com/news/2002/05/0509_020509_glassmeteorite.html
Hello Darren and List,
These are Messier and Messier A. Messier is an oval crater ( 9 x 11 km).
Messier A is two circular craters (the "younger" one sits on and thus
hides part of the "older" crater). This double crater measures 11 x 13 km
and this is the one in the NASA picture that displays these two straight,
narrow rays up to a distance of 120 km! Look for it in Mare Fecundidatis
3-4 days after the Moon is new or 3-4 days after full moon because then
this interesting feature is close to the terminator (No, not Arnold from
Austria ;-) and can thus be seen at its best!
Cheers,
Bernd
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