Mare Vaporum (Sea of Vapor) can be found southeast of the Apennine Mountains of which the other side is Mare Imbrium. The northeast border is several lunar lakes and Montes Haemus which lies between Mare Vaporum and the much larger Mare Serenitatis (Sea of Serenity). Directly to the west is Sinus Aestuum (Seething Bay) of which Eratosthenes encroaches upon the northern shores. Mare Vaporum is a relatively circular sea with a diameter of approximately 230km which approaches the size of some large craters on the nearside.
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| Mare Vaporum (Image Credit: NASA Apollo 17) |
Observation
My abbreviated observation record can be found below:
My abbreviated observation record can be found below:
| Date | 2020-06-01 |
| Time | 23:54 |
| Sky | Clear |
| Telescope | 8" Reflector (1200mm F.L.) |
| Eyepiece | 10mm (2x Barlow) |
| Magnification | 240x |
Comments
I observed Mare Vaporum south of the Apennines which seemed to form a thick border. A thinner border with Mare Serenitatis was also noticed. Compared to the Apennines these seemed more like smaller hills. There was a moderate sized crater (Manlius) between Mare Vaporum and Mare Serenitatis. There were rilles and hills throughout the middle of the sea along with darker patches of lunar floor. The south edge of the sea had a noticible gouge (Rima Hyginus) with a crater (Hyginus) in the middle.
Location
To help you locate this object a map has been provided from the Royal Astronomical Society of Canada's Observer's Handbook. It is object MV, highlighted below.
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| Mare Vaporum (Sea) |
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