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EarthSky Community Photos
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Tom Wildoner
Weatherly, PA USA
Weatherly, PA USA
01/14/2019
08:00 pm
08:00 pm
Equipment Details:
Tech Specs: Sky-Watcher Esprit 120mm ED, ZWO ASI290MC, Televue Powermate 2.5x, SharpCap Pro v3.1. Location: The Dark Side Observatory, Weatherly, PA, USA.
Post-processing Details:
Best 25% of 5,000 images captured using SharpCap Pro v3.1.
Image Details:
Rupes Recta, a linear fault line, or rille, appears as a straight shadow during the first quarter phase of the moon giving it the nickname the Straight Wall. This fault has a length of about 68 miles (110 kilometers). The small (11 miles wide) crater Birt lies just to the west.
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