The week of November 22-28 takes us from Day 18 to Day 23. This week we will highlight Mare Nectaris, best viewable on Tuesday night.
Mare Nectaris: [SE/L13; L=36°E] The Nectaris basin was excavated 3.9 billion years ago. The oldest features on the Moon formed prior to this event. Mare Nectaris is a classic example of a multi-ring basin. Tonight will reveal Rupes Altai, a high cliff that is a conspicuous fragment of one of the original rings. As the Sun sets across the region, try to locate hints of other ring features surrounding Mare Nectaris.
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It is highly recommended that you get a copy of Sky and Telescope’s Field Map of the Moon, the very finest Moon map available for use at the telescope. It is available for $10.95 at www.skyandtelescope.com and on Amazon. All features mentioned in this blog will be keyed to the grid on the Field Map and will look like this: Plato: [NW/D9]
Credits:
Courtesy of Gray Photography of Corpus Christi, Texas
Lunar photos: NASA / USGS / BMDO / LROC / ASU / DLR / LOLA / Moon Globe. Used by permission
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