Apennine Mountains on the moonThe week of June 10-16 takes us from Day 8 to Day 14, one day before full moon. This week we will highlight the Apennine Mountains, viewable on Monday and Tuesday evenings.

The Apennines stretch out over 370 miles and include more than 3,000 peaks.Montes Apenninus: [NW/H9-G10] The Apennine Mountain Range is the most spectacular feature on the Moon and was formed when the Imbrium basin was blasted out nearly four billion years ago. Mountain ranges on the Earth take millions of years to form. The magnificent ranges that surround Mare Imbrium were created in a matter of minutes! They resulted from the shock waves that exploded out from the original Imbrium impact. The Apennines stretch out over 370 miles and include more than 3,000 peaks. The highest peak in this range is Mons Huygens which stretches, from its base to its top, to an incredible 18,000 feet!

Back off and scan the whole area for telltale formations that seem to radiate from the center of Imbrium (don’t forget to check the back side of the Apennines). These radial features resulted from debris that was blown out from the original impact.


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]

Courtesy of Gray Photography of Corpus Christi, Texas
Lunar photos: NASA / USGS / BMDO / LROC / ASU / DLR / LOLA / Moon Globe. Used by permission

Andrew Planck
Apennine Mountain Range: The Most Spectacular Feature on the Moon
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