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3towers Observatory Lunar 100/Lunar Features

The Lunar 100 was created by Charles A. Wood who states: "The Lunar 100 list is an attempt to provide Moon lovers with something akin to what deep-sky observers enjoy with the Messier catalog: a selection of telescopic sights to ignite interest and enhance understanding. [It is]... a selection of the Moon's 100 most interesting regions, craters, basins, mountains, rilles, and domes."

Woods challenges "...observers to find and observe them all and, more important, to consider what each feature tells us about lunar and Earth history."

To find out more about the Lunar 100 see the Sky & Telescope web site at: http://skyandtelescope.com/observing/objects/moon/article_1199_1.asp.

The Lunar 100 features are arranged from the easiest to view to the most difficult. The Moon itself is L1. L2 is Earthshine, and L3 represents the dichotomy between the Lunar highlands and the Lunar Maria. While the Lunar 100 are concentrated all on the nearside of the Moon, they can not be seen in a single night or a single month. Some of them require special lighting conditions or phases of the Moon, and others, in addition, require very favorable librations of the Moon to bring them into view. The Lunar 100 is an observing list. However, the equipment at the 3towers Observatory was used to image the Lunar 100, mainly using the web cam techniques detailed.


Lunar Features|Lunar 100|Moon Halos|Lunar Webcam Imaging|Lunar Eclipses

Lunar Feature Lunar Age in days (rounded down) Thumbnail Image Comments
81. Hesodius A 9.95 days Hesodius A and Pitatus 9.95 days  
81. Hesiodus A 10.8 days Hesiodus A  
81. Hesiodus A 12.3 days Hesiodus A Pitatus is the crater in the center of the image. On its Western edge is Hesiodus. On Hesiodus Southern edge is Hesiodus A. Hesiodus A has a double concentric wall.
82. Linne 9.3 days Linne Linne is a tiny crater once reported to have disappeared. Linne is the small white patch below center.
82. Linne 9.6 days Linne  
83. Plato craterlets 9.7 days Plato Plato contains dozens of inner craterlets. Only the very largest couple of craterlets are barely shown on these images of Plato. Rukls atlas shows approximately 6 inner craterlets.
83. Plato craterlets 9.95 days Plato craterlets 9.95 days  
83. Plato craterlets 11.7 days Plato  
83. Plato craterlets 12.3 days Plato  
83. Plato craterlets 12.33 days Plato  
83. Plato craterlets 18 days Plato  
84. Pitatus 9.3 days Pitatus  
84. Pitatus 9.95 days Hesodius A and Pitatus 9.95 days  
85. Langrenus rays 4.5 days Langrenus rays  
85. Langrenus 5.7 days Langrenus rays  
85. Langrenus 14.9 days Langrenus rays  
85. Langrenus rays 16 days Langrenus rays  
86. Prinz Rilles 11.7 days Aristarchus Aristarchus is the bright crater near the left edge. Prinz is the upside down semicircular formation Northeast of Aristarchus.
86. Prinz Rilles 12 days Aristarchus  
86. Prinz Rilles 13 days Aristarchus and Prinz Rilles  
86. Prinz Rilles 21.7 days Prinz Rilles  
87. Humboldt 5.6 days Humboldt  
87. Humboldt 7.6 days Humboldt  
87. Humboldt Full Moon (14.7 days) Humboldt  
87. Humboldt 14.9 days Humboldt  
88. Peary 13 days





The craters are labeled: Peary (P), Byrd (B), Goldschmidt (G), Anaxagoras (A), de Sitter (dS), Euctemon (E), Nansen (N).

89. Valentine Dome 20.4 days Valentine Dome  
90. Armstrong, Aldrin, & Collins 6.05 days

Armstrong, Aldrin, and Collins are small craters near the Apollo 11 landing site.


The craters are labeled in this image.

90. Armstrong, Aldrin, and Collins 7.6 days




The craters are labeled in this image.

90. Armstrong, Aldrin, and Collins 8.1 days




The craters are labeled in this image.