JTC-1237
Sinus Iridum
Inside the Bay of Rainbows, the most elegant curve on the near side, where the Jura Mountains sweep out into a half-drowned crater wall.
- Coordinates
- 44.60° N, 30.90° W
- Diameter
- 3.2 km
Schematic elevation, rendered from catalogue data. Sunlight from the west.
Sinus Aestuum
11.60° N, 8.90° W
In the Bay of Billows, sitting on one of the darkest deposits on the Moon: volcanic glass beads sprayed from ancient fire fountains.
Near the centre of the disc, so it is well placed whenever the Moon is up.
The bright, ancient uplands. Rougher country, more dramatic in a telescope.
Dedication
$75
One-off payment
Free shipping from Joshua Tree, CA
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-2331 lies at 11.60° N, 8.90° W, in Sinus Aestuum. On the map, north is up and east is to the right, exactly as it appears through a telescope from the high desert.

Sinus Iridum
Inside the Bay of Rainbows, the most elegant curve on the near side, where the Jura Mountains sweep out into a half-drowned crater wall.
Mare Imbrium
Set against a wrinkle ridge, a frozen buckle in lava that cooled three billion years ago. The ridge points toward the crater like a drawn arrow.
Oceanus Procellarum
Adrift in the Ocean of Storms, the largest dark expanse on the Moon and the last ground the lunar sunset reaches each month.