L77: Sirsalis Rille

The Sirsalis Rille — the longest rille on the moon — once transported material to Oceanus Procellarum. This sketch only captures the northern half passing close to craters Sirsalis (left) and Sirsalis A. The sketch was made during high sun.

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Sketch made on 10 July 2014 using a SkyWatcher 10″ and a TeleVue Nagler zoom 3-6 mm. North is down.
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