Copernicus - 22 May

[brianb]

I took this image after shooting the large mosaic (in preparation) on May 22. Sunlight is just catching the three central peaks ...

2054 UT. William Optics FLT 110, Celestron Ultima x2 barlow, Planet Pro 742 IR pass filter, Imaging Source DMK41 camera. 1000 frames shot, best 250 stacked using Avistack.

Transparency fair, seeing moderate (significant boiling). Temperature 13C, wind calm.

[Steve 1962]

Hi Brian

That's really good - I'm thinking about getting the same camera as you use - what exposure did you use?

Cheers

Steve

[brianb]

what exposure did you use?

IIRC 1/30 sec (at f/14) gain set to 500 (medium).

[brianb]

Here's a thumbnail of the full 23 pane mosaic:

2015 - 2052 UT. William Optics FLT110, Celestron Ultima x2 barlow, Astronomik Planet Pro 742 IR pass filter, Imaging Source DMK41 camera.

The full sized image is here: http://www.bbhvig.uklinux.net/Moon/Moon-100522-2015-FLTX2-large.jpg (3413 x 4029 pixels; 1069988 byte jpeg file)

Note the rapid progress of the terminator: the central peaks of Copernicus were completely unilluminated in this image; the terminator was shot first, 20-25 minutes before the image above.

[AztecastroMcJ]

very nice detail

esp like Tycho and Clavius

[Nick Smith]

The mosaic looks great Brian!

Cheers

Nick

[brianb]

Thanks guys .... I'd like to get some steady seeing to see what I can do with my C11 - this time the seeing was bad enough that I wouldn't have got any better results.