The Sun Solar System: the Moon Planets observing logs

January 14th, 2005: Lunar observing log: Mare Fecunditatis area with Vendelinus and Langrenus

The Mare Fecunditatis area can be found to the south-southwest of Mare Crisium. The yellow rectangle on the image to the left represents the area that you will find on the large image below (Rukl maps 37, 38, 48, 49, 59, 60, 68 and 69). The image was shot while the Moon was 4 days old. To identify the different features, move the mouse pointer over the image.

The most prominent feature is Mare Fecunditatis with its highly irregular form. It covers an area of 326.000 square km. Two other large features are the crater Langrenus (132 km) with its central peaks and terraced walls and the walled plain Vendelinus (147 km). Vendelinus is an old heavily battered mare-filled (pre-nectarian) crater while Langrenus is a much younger crater.

The image was shot with the TAL 100RS (4-inch refractor) and a Televue 32mm Plossl. For people interested in the camera settings and processing data for this image, here are the details: Nikon Coolpix 4500 set at optical zoom 4x, black and white, ISO 100, f /5.1, shutter speed 1/8 second, resolution 2272 x 1704. The image below is a single shot image, not stacked. I applied unsharp masking, edited the levels and changed the brightness/contrast.

(move mouse-pointer over image to identify features)

Mare Fecunditatis area

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