Billy Crater and Mons Hansteen

Observation Notes:

After spending time on Shickard, I moved Northward to Billy Crater. It showed a nice intact rim with a dark flooded floor. There were two white splashes on the south-southwest and south-southeast ends of the crater floor. Immediately north of the crater was a bright white spray that radiated southward. A broad road of lighter material flowed away from the west side of the crater and curved northwest.

Factoids:

Billy Crater is a 46 km wide crater with a 1300 m high rim. Its floor is one of the darkest spots on the moon. It was formed more than 3.2 billion years ago--prior to the lava flows that filled Oceanus Procellarum. The "bright spray" I saw north of Billy is a 30 km wide massif called Mons Hansteen

SubjectBilly Crater and Mons Hansteen
ClassificationLunar Crater and Mountain
PositionWest edge
Phase/Age12 days old
Size*Billy Crater: (dia. 46 km);
Mons Hansteen (width 30 km)
Date/TimeJanuary 22, 2005 - 10:05 PM (January 23, 2005 - 05:05 UT)
Observing Loc.Flagstaff, AZ - Home
InstrumentOrion SVP 6LT Reflector (150 mm dia./1200 mm F/L)
Eyepieces/Mag.10 mm + 2X Barlow (240X)
ConditionsClear, cool (34°F)
Seeing4-5/10
SourcesThe Moon Observer's Guide By Peter Grego
Moonwatch

* Based on published data.

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This page contains a single entry by Jeremy Perez published on January 22, 2005 10:05 PM.

Schickard and Lehmann Craters was the previous entry in this blog.

Auriga Constellation is the next entry in this blog.

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