Mare Imbrium (“Sea of rains”)


Mare Imbrium is the second largest lunar sea. It is 1,250 km in diameter and is bounded by several mountain ranges: Montes Carpatus, Montes Apeninus, Montes Caucasus, Montes Alpes, Montes Spitzbergen, Montes Jura. The highest peak rises to 7,000 meters (23,000 feet). On the right edge, we see the Plato crater with its dark uniform lava bottom and the Valley of the Alps a little lower.

It is surely one of the most interesting regions to observe with a telescope. The best time is 2 days after the First quarter or 1 day after the Last quarter.

Technical details:

Telescope: Celestron Edge HD14 and 0.7x focal reducer
Camera: ZWO ASI 174 MC
Exposure: video capture of 1,311 frames from which the 787 best were selected, stacked, and processed
Date: February 21, 2021
Place: Backyard observatory in Sainte-Sophie, Qc