Observation by Chris Hooker: Hippalus and Ramsden rilles

Uploaded by

Chris Hooker

Observer

Chris Hooker

Observed

2020 Apr 03 - 18:58

Uploaded

2020 Apr 04 - 07:40

Objects

The Moon

Equipment
  • 254 mm Newtonian
  • 5x Powermate
  • ZWO ASI174MM camera
  • Baader 610 nm & IR-cut filters
Exposure

1/40 sec

Location

Didcot, Oxfordshire

Target name

Hippalus rilles

Title

Hippalus and Ramsden rilles

About this image

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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