Description:
Damaged circular formation.
Few marked slopes crushed by Fabricius to the North and riddled
of craters whose Lockyer to the West Janssen F R E and D to the
South-West Janssen B J
M and X to the North West.
Few high walls.
Very tormented floor with the trio Janssen H K & L to the East.
Hills and craterlets. Contains Rimae Janssen. |
Size:
Dimension: 196x196Km / 115x115Mi
Height: ?
Height/Wide ratio: Unknown height. Impossible calculation.
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Observation:
Interest : Very interesting formation
Observation period: 5 days after New Moon or 4 days after Full Moon
Minimal Instrument: 10x binoculars
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