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Moon images July and August 2017
The moon pictures on this Website were taken at the end of July/beginning of August with the Onjala Celestron 14. They show some special images and/or special moon details. A image description to the individual pictures can be found in the table ...

The video module was a Celestron SkyRis 445M in combination with a Baader IrPass filter for calming the seeing. For each raw sum image, 2,000 individual images were recorded, of which 10% were each edited. The processing software was AviStack and Photoshop CS 2. Click on the respective thumbnail to load large images. ALL images are opened in a separate browser window.
Images - SUN
Images - MOON
Images - SOLAR SYSTEM
Images - DEEPSKY
Images - WIDEFIELD
Images - MISCELLANEOUS
Images - SPEC. PROJECTS
 

 
Image Date Moon age -
Illumination
detailed description
Aristarchus 05.08. 13.3d - 96% The picture shows the very young crater Aristarch. These young craters (as well as Tycho and Copernicus) often have extremely bright crater walls and crater edges. With these craters it is practically impossible to find an exposure that adequately shows both the surroundings and the craters. If you expose the crater to the environment, it is completely overexposed and burnt out, if you expose it to the crater, the environment is hopelessly underexposed.

The image consists of 2 images. The lower plane is exposed on the crater, the upper plane is exposed on the surroundings. The upper plane is masked and erased in the crater area, so that the correctly exposed crater appears.
Catena Kraft 06.08. 14.3d - 99% A rarely seen crater chain that connects the two craters Kraft and Cardanus. Due to the large perspective distortion, earth-bound images tend to show a groove or furrow.
Clavius 14.08. 22.0d - 59.5% This picture and also the next shows the craters Schiller and Heinzel are daylight shots of the moon. The sun was already about 20 degrees above the horizon. Preconditions for the success of such pictures are a clear sky, an absolutely clean and scattered light-free optics and the use of a Baader IR pass filter for calming the seeing and darkening the sky background. Both pictures show a decreasing moon phase.

Heinzel - Schiller 16.08. 24.0d - 36% see description under Clavius
Rimae Grimaldi 05.08. 13.3d - 96% The picture shows the groove system Rimae Grimaldi which is rarely seen on moon photographs. Additionally the end of Rimae Sirsalis and Rima Hansteen.
Keplers ray system 05.08. 13.3d - 96% The picture expressively shows the extensive ray system of the young crater Kepler. The polygonal form of Kepler and Encke is also clearly visible.
Southpole 03.08. 11.3d - 85% The image of the south pole region of the moon was taken with 6.500mm focal length under optimal libration conditions. It is a mosaic of 2 images and some of the large craters near the poles are labeled.
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All Images and all Content are © by Franz Hofmann + Wolfgang Paech