The week of August 18-24 takes us from Day 25 to Day 2. This week we will highlight the Reiner Gamma, visible on Tuesday & Wednesday nights close to the terminator.
Reiner Gamma: [NW/J4; L=59°W] Lunar swirls are absolutely flat features that cast no shadows but leave enigmatic whorl-like markings on the lunar surface. No known geological process could have created them, and to heighten the mystery, instruments on Apollo spacecraft measured strong magnetic fields directly over the swirls. For the fanciful, they are eerily reminiscent of crop circles. Of the three swirls on the Moon, two have been found to be antipodal features of major impact zones and mascons. All three of the swirls on the Moon (there are two on the far side) are associated with strong magnetic anomalies.
OF ADDITIONAL INTEREST IN SPACE
On Tuesday, Jupiter is 5° south of the Moon.
On Wednesday, Venus is 5° south of the Moon.
On Thursday, Mercury is 4° south of the Moon.
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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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