10-29-07 , 18 Inch Reflector , Infinity 2-1M Camera
The Information Listed Below Is
Provided By Personal Authorization From Christian Legrand Of VMA,
To Virtual Moon Atlas
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.
Dimension: 196x196Km / 115x115Mi
Height/Wide ratio: Unknown height. Impossible calculation.
Interest : Very interesting formation
Observation period: 5 days after New Moon or 4 days after Full Moon
Minimal Instrument: 10x binoculars