Object/type:Moon / Ptolemy crater region
mag/dia/dist:
constellation:
date/time/place:Feb 1, 2001 / 09:20 / bangkok
trans'y/seeing/l-poll:
telescope:newtonian 4.5" f8.8
eyepieces/power:10mm / 100x
sky atlas page:
Couldn't found rill pattern on Ptolemy crater floor.
Craters information from upper carter to lower ones in counter clockwise direction:
(1) Albategnius, Diameter: 130 km, central peak 4,268 m.
(50) Ptolemy, Diameter: 146 km, wall 3,048 m.
(29) Alphosus, diameter 103 x 117 km
(34) Arzachel, Diameter 95 km, wall 3,963 m.

note: the crater numbers are refer to text book "Touring the Universe through Binoculars" Home
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