Lunar Images by Philipp Salzgeber




Wolfurt / Austria

 Clavius (L9)

The Clavius Saga continues...
On the QCUIAG e-mail list I learned about a program called MoonStack which deforms the images prior to stacking to counteract the differential image movement due to seeing. As my Clavius video shows lots of image movement I tried this new program on 153 BMP frames selected from the original AVI. The resulting image was a little off in color. The color-channels were not really properly aligned. After playing around for some time, I took the three color-channels, histogram-stretched them, sharpened them and exportet them to three BMP file which I stacked in AstroStack. After some more sharpening the image above was produced...

Clavius is No. 9 in the Lunar 100 list.

The image above is based on the same video like the one below, but in this case I used the freeware program Astrostack to align and stack about 150 single frames. The image is much better, but there is still much room for improvement.

The Crater Clavius

© Philipp Salzgeber

The Crater Clavius is located in the rough southern part of the moon, it features a chain of smaller Craters on its floor. The crater Porter is superimposed on its edge. Russell W. Porter was a pioneer of Amateur telescope making, helped found the Stellafane amateur convention and made the famous drawings of the 200" Hale Telescope on mount palomar even before the telescope was built
This image is a "stack" of 6 individual frames. By this process the inherent noise of the video images has been reduced. A gif-"movie" made of indivdual frames from the video-recording shows the influence of turbulent atmosphere on astronomical objects. Astronomers call this phenomenon SEEING

Images of Clavius by other lunar-photographers:
Camera: Sony CCD-TR2200E Pal
Telescope: Vixen 130mm f/5,5 Newton with 20mm Eyepiece

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All images © Philipp Salzgeber

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