Steno (lunar crater)
Encyclopedia
Steno is a relatively small lunar
impact crater
that is located in the northern hemisphere
on the Moon
's far side. It lies to the south-southwest of the slightly larger crater Stearns
, a much younger and less worn formation. Farther to the northwest of Steno is Appleton
, and to the east is Nušl
.
This is a worn crater formation that has a circular outer rim that remains relatively well-defined. The rim edge is marked only by a few tiny craterlets. The interior floor and inner walls are nearly featureless, except for a few faint groove marks and some tiny craterlets. It is otherwise an undistinguished formation.
Moon
The Moon is Earth's only known natural satellite,There are a number of near-Earth asteroids including 3753 Cruithne that are co-orbital with Earth: their orbits bring them close to Earth for periods of time but then alter in the long term . These are quasi-satellites and not true moons. For more...
impact crater
Impact crater
In the broadest sense, the term impact crater can be applied to any depression, natural or manmade, resulting from the high velocity impact of a projectile with a larger body...
that is located in the northern hemisphere
Sphere
A sphere is a perfectly round geometrical object in three-dimensional space, such as the shape of a round ball. Like a circle in two dimensions, a perfect sphere is completely symmetrical around its center, with all points on the surface lying the same distance r from the center point...
on the Moon
Moon
The Moon is Earth's only known natural satellite,There are a number of near-Earth asteroids including 3753 Cruithne that are co-orbital with Earth: their orbits bring them close to Earth for periods of time but then alter in the long term . These are quasi-satellites and not true moons. For more...
's far side. It lies to the south-southwest of the slightly larger crater Stearns
Stearns (crater)
Stearns is a lunar impact crater on the far side of the Moon. Unlike many lunar craters, this is a relatively fresh and well-defined impact feature with little appearance of erosion. The rim edge is sharp and roughly circular, with some unevenness. The inner walls are simple slopes down to piles of...
, a much younger and less worn formation. Farther to the northwest of Steno is Appleton
Appleton (crater)
Appleton is a heavily eroded lunar crater that lies in the northern hemisphere on the far side of the Moon. To the northwest are the craters Von Neumann and Campbel. The smaller Golovin lies to the northeast, while further to the southwest is the Mare Moscoviense.The crater wall and interior have...
, and to the east is Nušl
Nušl (crater)
Nušl is an impact crater that is located on the far side of the Moon. It lies just to the north of the crater Trumpler, and to the west of Shayn....
.
This is a worn crater formation that has a circular outer rim that remains relatively well-defined. The rim edge is marked only by a few tiny craterlets. The interior floor and inner walls are nearly featureless, except for a few faint groove marks and some tiny craterlets. It is otherwise an undistinguished formation.
Satellite craters
By convention these features are identified on lunar maps by placing the letter on the side of the crater mid-point that is closest to Steno.| Steno | Latitude | Longitude | Diameter |
|---|---|---|---|
| N | 31.3° N | 161.4° E | 20 km |
| Q | 29.3° N | 157.8° E | 29 km |
| R | 31.3° N | 158.9° E | 17 km |
| T | 32.7° N | 159.7° E | 37 km |
| U | 33.1° N | 158.3° E | 27 km |