JTC-2140
Mare Frigoris
In the Sea of Cold, a long narrow band of dark lava stretching almost a third of the way around the northern Moon.
- Coordinates
- 55.80° N, 3.20° E
- Diameter
- 5.8 km
Schematic elevation, rendered from catalogue data. Sunlight from the west.
Mare Nubium
20.60° S, 15.90° W
In the Sea of Clouds, near the Straight Wall, a hundred-kilometre fault scarp that casts the sharpest straight shadow on the Moon.
Time this one with the Straight Wall, eight days after new moon, for the best view of the season.
On the dark basalt seas. The easiest ground to find from your own backyard.
Dedication
$149
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The Moon keeps one face turned toward Earth, so your crater is fixed in the same spot of sky every clear night of your life.
JTC-2087 lies at 20.60° S, 15.90° W, in Mare Nubium. On the map, north is up and east is to the right, exactly as it appears through a telescope from the high desert.

Mare Frigoris
In the Sea of Cold, a long narrow band of dark lava stretching almost a third of the way around the northern Moon.
Mare Humorum
In the Sea of Moisture, a basin so loaded with dense lava that its own weight cracked the floor into a web of rilles.
Palus Epidemiarum
In the Marsh of Epidemics, a small flooded plain cut by the Ramsden rilles, a delicate branching network of collapsed lava channels.