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Reload this Page My biggest, hi-res lunar mosaic ever!
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Old 12-October-2006, 09:58 PM
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iceman iceman is offline
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Exclamation My biggest, hi-res lunar mosaic ever!
Hi all

This image is my biggest mosaic project ever! A hi-res mosaic made up from 19 avi's, aligned on over 150 alignment points! :eyepop:

Unfortunately there's some large holes in the mosaic, and some unusual angles thanks to platform resets (field rotation). It would've been quite something if the middle area was captured as well.

There's loads to see, including the straight wall (Rupes Recta), Rima Bert, Arzachel, Alphonsus and the Davey Crater Chain.

The data was captured on the night of the 1st October, with the moon directly overhead. Seeing was good to very good - at the beginning (6:30pm local time), it was around 7/10 but by the time I finished (7:30pm) it deteriorated to about 5/10.

I used my usual 10" dob on EQ platform, 5x powermate + DMK21AF04 + Astronomiks Red filter.

Registax was used for alignment and stacking, Photoshop for making the mosaic, and AstraImage and Photoshop for deconvolution and high pass filtering.

It's my best image of this region and I'm really happy with how it turned out.

The attached image is shrunken low-res - please download the full version (higher res 2000px x 1800px, better quality):

Download full-size image (450k jpeg)

Thanks for looking! Comments more than welcome.
Attached Images
File Type: jpg 20061001-strwall-arzachel-1000.jpg (142.0 KB, 76 views)
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Old 12-October-2006, 10:46 PM
paul f. campbell paul f. campbell is offline
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Hi Iceman. Nice mosaic. I just started doing mosaic photos of our Moon,I like the idea. great work thanks.
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Old 13-October-2006, 01:11 AM
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Very nice work! Great detail and no apparent processing artifacts.
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Old 13-October-2006, 05:14 AM
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Fantastic image, especially the high resolution one! Thank you for sharing.
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Old 13-October-2006, 06:45 PM
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very fine images.
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Old 14-October-2006, 06:05 AM
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I need a bigger monitor, because WOW, eye-popping detail, indeed!

That's great work, Mike. I can see why SpaceWeather.com featured your mosaic for 10/13 and 10/14: http://spaceweather.com/index.cgi

Quote:
...His high-resolution mosaic is peppered with lunar curiosities such as the Davy Crater Chain... The chain formed unknown millions of years ago when a fragmented comet or asteroid hit the Moon, one piece after another. What fragmented it? Tidal forces from the Earth-Moon system ripped the impactor into a "string of pearls" much like Comet Shoemaker-Levy 9 that hit Jupiter in 1994...Salway's mosaic also highlights the dramatic Straight Wall, a 70 mile-long fault best seen in the shadows and light of a quarter Moon.
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Old 14-October-2006, 11:55 PM
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Eric Vaxxine Eric Vaxxine is offline
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Marvellous images.

I'm intrigued by the 'snail like trails' in the images. One in the crater on the left and a bigger one on the right hand side near the small crater.
What would generate such marks?
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Old 15-October-2006, 02:33 AM
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Old 15-October-2006, 09:14 PM
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iceman iceman is offline
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Thanks for your comments.

Quote:
Originally Posted by Eric Vaxxine View Post
Marvellous images.

I'm intrigued by the 'snail like trails' in the images. One in the crater on the left and a bigger one on the right hand side near the small crater.
What would generate such marks?
Eric, they're called rilles.

They're thought to have been formed by collapsed lava tubes. Read more about it here:
http://en.wikipedia.org/wiki/Rille
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Old 16-October-2006, 06:12 PM
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Very impressive!
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Old 17-October-2006, 02:10 AM
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Quote:
Originally Posted by iceman View Post
Thanks for your comments.


Eric, they're called rilles.

They're thought to have been formed by collapsed lava tubes. Read more about it here:
http://en.wikipedia.org/wiki/Rille
Thank you.

'Precise causes of rilles have yet to be determined.' Quote, unquote.
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Old 18-October-2006, 08:47 AM
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that's an amazing image.

You use Registax to stack them? How long does that take? My panorama software will do that, but its a slow process.
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