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The Six-Inch Lunar Atlas

Part of the Astronomer's Pocket Field Guide Book Series

DOI: 10.1007/978-0-387-87610-8

ISBN: 978-0-387-87609-2

Publisher: Springer New York - Springer Journals

Jul 21, 2009

1 - 10 of 62 Chapters

LitStream

The Lunar Seas

Spain, Don

Pages: 3 –8

[Let’s take a look a look at the lunar seas before we go into a close-up study of the lunar surface. These seas are visible to the unaided eye and all are easily visible with the simplest of optical aid. Even opera glasses will easily distinguish one sea from another.]
LitStream

Finder Charts

Spain, Don

Pages: 9 –11
LitStream

Endymion

Spain, Don

Pages: 14 –17

[Endymion (76 miles wide) is a grand crater visible 3 days after the new Moon. The floor is flooded and dark. Its very high walls rise in some places to 2.5 miles above the lava floor. In a 6 inch refractor you will see very little relief on the floor. Catch this great formation on the third day...
LitStream

Messala

Spain, Don

Pages: 19 –22

[Messala (75 miles wide) is a very large formation. The walls are not particularly high for a crater this size; they are highest on the southwest rim and may reach about 2 miles above the floor. The large flat floor is rather rough with small hills, ridges, and craterlets. There is a series of...
LitStream

Cleomedes

Spain, Don

Pages: 23 –26

[Cleomedes (76 miles wide) has highs walls that rise to over 2½ miles in places. The floor is flat and lava filled. There is a small off-center peak that is less than 1 mile high. There are two craters on the floor that are easy to see even in small instruments. While not visible on the photo...
LitStream

Mare Crisium

Spain, Don

Pages: 27 –30

[Mare Crisium, or the Sea of Crisis, is an exceptional formation. It is actually a lunar basin, a large area of that was flooded by the impact of an asteroid billions of years ago. The flooded lava floor is oval in shape. The east-west direction is 375 miles; the north-south direction is 345...
LitStream

Langrenus

Spain, Don

Pages: 31 –34

[Langrenus (80 miles) is a great crater. The walls are terraced and I can see three separate layers of terracing. The walls are probably 2 or more miles high. There is a very nice central mountain mass composed of at least two main peaks. My personal estimation of their height is about 1 mile...
LitStream

Vendelinus

Spain, Don

Pages: 35 –38

[Vendelinus (90 miles) is a large crater that has suffered from impacts that formed two craters on its northeast and northwest rim. Its low walls are greatly eroded. I doubt if most areas of the rim rises more than 1½ miles above the floor. The floor is flat and many small, and not so small...
LitStream

Petavius

Spain, Don

Pages: 39 –42

[Petavius (110 miles) is a magnificent an exceptional formation. It is one of the lunar giants. The walls reach upwards of 2 miles above the floor and are heavily terraced. There is a central mountain mass that has several peaks and hills. The highest peak reaches up about a mile high. The floor...
LitStream

Gutenberg

Spain, Don

Pages: 43 –46

[Gutenberg (45 miles) is a formation that at first glance looks like an old fashioned keyhole. The western walls rise over a mile above the floor. Part of the eastern rim is destroyed by a later impact and the southern wall is also missing from the impact that makes up the bottom of the keyhole....

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