By Jeff Majewski | 2019-01-19
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On 01/14/2019 08:00 pm by Tom Wildoner | Website | Weatherly, PA USA
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.
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.
Best 25% of 5,000 images captured using SharpCap Pro v3.1.
