The week of June 26-July 2 takes us from Lunar Day 3 to Day 9. This week we will highlight the crater Bürg, viewable on Thursday evening. (This information was posted on the blog for 5/15/17, but because the Moon was viewable only in the early morning, we are repeating it.)
Bürg: [NE/E12] The centerpiece of Lacus Mortis (the charmingly named Lake of Death in the NE quadrant) is the 25-mile crater Bürg, a complex crater with terraces and a central mountain peak that appears to be split in two. As far as complex craters go, Bürg is a bit unusual. Instead of being mostly circular, the rim is scalloped and wavy and there is an inordinate amount of slumping on the western interior slopes; a finger of the slumping actually touches the central mountain peak! Some observers have reported a small summit pit on the top of the central mountain; can you make it out?
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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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