Euler (crater)

Euler
Coordinates23°18′N 29°12′W / 23.3°N 29.2°W / 23.3; -29.2
Diameter28 km
Depth2.2 km
Colongitude28° at sunrise
FormationEratosthenian[1]
EponymLeonhard Euler
Oblique view also from Apollo 17, facing south

Euler is a lunar impact crater located in the southern half of the Mare Imbrium,[2] and is named after the Swiss mathematician, physicist and astronomer Leonhard Euler.[3] The most notable nearby feature is Mons Vinogradov to the west-southwest. There is a cluster of low ridges to the southwest, and this formation includes the small crater Natasha and the tiny Jehan. About 200 kilometers to the east-northeast is the comparably sized crater Lambert.

On the lunar geologic timescale, Euler dates from the Eratosthenian age.[1] Euler's rim is surrounded by a low rampart, and contains some slight terracing and slumped features on the irregular inner wall surface. In the middle of the small interior floor is a low central peak that formed from the rebound subsequent to the impact. The crater has a minor system of rays that extend for a distance of 200 kilometers.

Satellite craters

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Euler.

Euler and its satellite craters
Euler Latitude Longitude Diameter
E 24.7° N 34.0° W 6 km
F 21.2° N 27.9° W 6 km
G 20.7° N 27.4° W 4 km
H 25.3° N 28.6° W 4 km
J 22.3° N 31.5° W 4 km
L 21.4° N 28.9° W 4 km

The following craters have been renamed by the IAU.[4]

References

  1. 1 2 Wilhelms, Don E.; McCauley, John F.; Trask, Newell J. (1987). The geologic history of the Moon. USGS Professional Paper 1348. Washington: U.S. Government Printing Office. doi:10.3133/pp1348. Table 12.2.
  2. ↑ Webb, Rev. T. W. (1962). Celestial Objects for Common Telescopes (6th revised ed.). Dover. pp. 125, 154–159. Reprint: ISBN 978-0-486-20917-3
  3. ↑ "Gazetteer of Planetary Nomenclature | Euler". usgs.gov. International Astronomical Union. Retrieved August 23, 2017.
  4. ↑ Moore, Patrick; Rees, Robin (2014). Patrick Moore's Data Book of Astronomy (2 ed.). Cambridge University Press. pp. 50–79. ISBN 978-1-139-49522-6.

Sources