Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

sgl_imaging_challenge_banner_30_second_exp_2.thumb.jpg.7719b6f2fbecda044d407d8aba503777.jpg

John

A Nice Pair

Recommended Posts

One of my favourite lunar observing targets is well placed tonight, close to the terminator and with interesting illumination.

It's the crater pair Messier and Messier A in the Mare Fecunditatis. Messier A has distinctive long rays extending from it away from the nearby Messier. Interesting to think about how these two formed. Here is a piece by Charles A Wood on the pair:

http://www.skyandtelescope.com/observing/celestial-objects-to-watch/messier-on-the-moon/

Well worth looking out for these two if you have clear skies tonight and they should be visible in most scopes at a medium magnification.

:smiley:   :smiley:

 

  • Like 7

Share this post


Link to post
Share on other sites

Ah, i have a book which i purchased all about lunar craters and observing them. I've seen this and it is a wonderful target on the moon. However my favorite target on the moon is  Rupes Recta (The straight wall) :D

Also that image is amazing, i love high res images on our moon.  Have you checked this out: http://target.lroc.asu.edu/q3/ You can keep zooming into the surface up to 0.5 meters per pixel.

  • Like 5

Share this post


Link to post
Share on other sites

Unfortunately it's been raining most of the evening so no chance of observing tonight. I did managed to catch this pair last night but they were further from the terminator and not so well lit, the rays from Messier A were quite hard to see.

  • Like 1

Share this post


Link to post
Share on other sites

Just in from viewing the Messier craters. Some nice views even though the seeing was not great.

  • Like 2

Share this post


Link to post
Share on other sites

Was avoiding the moon tonight and had a cracking time viewing Uranus, NGC7662 & NGC6826 to name but a few things I viewed. Just finished 10 mins ago as the moon was just raising above my shrubbery to spoil the dark corner of my front garden. Hehe! ;) 

  • Like 2

Share this post


Link to post
Share on other sites

Hi John. Just found your pair?.  Got the Az out and the 120 apo and a nice Pentax in.  Sky's have been clear but clouds starting to move across now.Took a little bit of searching for and confirmed with the photo on your link page. But it's there alright . A confirmation target for me and I know now what it's called now . Learned something new tonight☺

  • Like 1

Share this post


Link to post
Share on other sites
2 hours ago, Yamez said:

 

......  Have you checked this out: http://target.lroc.asu.edu/q3/ You can keep zooming into the surface up to 0.5 meters per pixel.

What an amazing tool that is ! - thanks for posting the link :smiley:

 

Share this post


Link to post
Share on other sites
9 hours ago, Yamez said:

Ah, i have a book which i purchased all about lunar craters and observing them. I've seen this and it is a wonderful target on the moon. However my favorite target on the moon is  Rupes Recta (The straight wall) :D

Also that image is amazing, i love high res images on our moon.  Have you checked this out: http://target.lroc.asu.edu/q3/ You can keep zooming into the surface up to 0.5 meters per pixel.

Thanks Yamez

I'm going to be late for work now!!??

Paul

Share this post


Link to post
Share on other sites
56 minutes ago, Paul73 said:

Thanks Yamez

I'm going to be late for work now!!??

Paul

Haha, it's an amazing website. I spent a lot of time searching and looking at the apollo landings, you can see the actual landing modules, also can see the trails the lunar rovers have created.

Share this post


Link to post
Share on other sites
On 18/10/2016 at 22:01, Yamez said:

Ah, i have a book which i purchased all about lunar craters and observing them. I've seen this and it is a wonderful target on the moon. However my favorite target on the moon is  Rupes Recta (The straight wall) :D

Also that image is amazing, i love high res images on our moon.  Have you checked this out: http://target.lroc.asu.edu/q3/ You can keep zooming into the surface up to 0.5 meters per pixel.

Thanks for the link, definitely a worthy bookmark 

  • Like 1

Share this post


Link to post
Share on other sites

Just been observing the Messier pair plus their amazing orthogonal ejecta patterns tonight :thumbsup: - really stunning at 250x in my 15", despite being at only 18° altitude here when I was out. Seeing didn't warrant higher mag tbh.

Share this post


Link to post
Share on other sites

John,

 thanks for the Sky and Telescope link - I never took notice of the "butterfly"-form ejecta near the craters; the explanation of the underlying mechanisms is very interesting!

Have you tried to spot the Rima Messier close by? It is a tough nut, even with an 18"; but I've seen it twice two years ago, using 512x mag with a 4mmf orthoscopic. I took the small craters Secchi X (4,8 km) and Secchi K (6,5 km) as pointers; the Rima Messier extends between them both. Never seen it in smaller scopes, but I'll give it a try again with the 13.1" Odyssey (which has got a good mirror) during the next months.

Stephan

 

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.