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06/09/2022 – Ephemeris – Looking at the gibbous Moon tonight

June 9, 2022 Comments off

This is Bob Moler with Ephemeris for Thursday, June 9th. Today the Sun will be up for 15 hours and 29 minutes, setting at 9:27, and it will rise tomorrow at 5:57. The Moon, 2 days past first quarter, will set at 3:29 tomorrow morning.

By tonight, the gibbous moon will be quite bright. At the moon’s left edge, just coming into sunlight, will be what looks like a large half crater at the edge of the lunar sea called Mare Imbrium, the Sea of Showers. That feature is Sinus Iridium, or Bay of Rainbows. The arc of its mountainous edge is rainbow shaped, but it is as colorless as the rest of the Moon. The crater Copernicus sports few shadows and appears mostly as a bright spot surrounded by its ray system of ejecta craters that appear bright when the sun is high in their sky. At the south end of the Moon are the lunar highlands, bright, rugged and covered by large, mostly very old craters. Largest of these craters is Clavius, named for Christophorus Clavius who, working for Pope Gregory XIII, devised the Gregorian Calendar we use today.

The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EDT, UT – 4 hours). They may be different for your location.

Addendum

Gibbous Moon

Binocular Moon as it might appear tonight, June 9, 2022. Below, we’ll look closer to the terminator area of the Moon. Created using Virtual Moon Atlas.

Northern gibbous Moon terminator area

Northern gibbous Moon terminator area with labels for some prominent features. Created using Virtual Moon Atlas, LibreOffice and GIMP.

Southern gibbous Moon terminator area

Southern gibbous Moon terminator area with labels for some prominent features. Created using Virtual Moon Atlas, LibreOffice and GIMP.

Translations

Mare Frigoris – Sea of Cold
Mare Imbrium – Sea of Showers
Mare Nubium – Sea of Clouds
Montes Alpes – Alps Mountains
Montes Appinenninus – Apennines Mountains
Sinus Iridium – Bay of Rainbows