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Hippalus and Ramsden rilles

Image

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About this observation
Observer
Chris Hooker
Time of observation
03/04/2020 - 19:58
Object
Hippalus rilles
Observing location
Didcot, Oxfordshire
Equipment
254 mm Newtonian
5x Powermate
ZWO ASI174MM camera
Baader 610 nm & IR-cut filters
Exposure
1/40 sec
Tags

The region to the east of mare Humorum has many rilles. The Hippalus rille system (upper part of image) curves around the mare and was formed by crustal stretching as the weight of the mare depressed the surface. There is a complex system of intersecting rilles around the small crater Ramsden, lower centre. Finally, the linear Hesiodus rille extends from just north of the crater Capuanus and out of the frame to the upper right.

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