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Our Moon.   (Top) Features visible include The Sea of Tranquillity, where Apollo 11 landed, and the Altai Scarp, a fault system, at lower centre.  Light takes just 1 second to travel the 384,000 km average distance.

Bottom.  The crater Tycho.


Image info

Telescope:  Skywatcher 8" f/5 Newtonian

Focus:  Prime focus

Camera:  SAC7B, uncooled

Exposure:  various, mosaic of 8 images (top), 2 images (bottom).

Date:  16th June 2002

Processing:  Acquired in Astrovideo as FITS.  Stacked and mosaicked in Iris.  Initially RGB, but converted to grayscale.


Acquired in Astrovideo and assembled into this mosaic in Iris.  It was a labourous task to assemble the 8 different images into this image.  The individual images had been converted to twice the resolution using the 'drizzle' process in Iris.  When I finished I had more than 2000 files in the directory for this image.

The end result is a very high resolution image, which has been resized down for this page.  Click here to see the full resolution picture (169K).

Copyright 2003 to 2014, by TG Tan.  All rights reserved.  Copyright exists in all original material available on this website.  This material is for your personal individual, nonprofit use only.  Redistribution and/or public reproduction of this material is strictly prohibited without prior express written permission from the author.