Plinius (crater)

Plinius

Coordinates 15°24′N 23°42′E / 15.4°N 23.7°E / 15.4; 23.7Coordinates: 15°24′N 23°42′E / 15.4°N 23.7°E / 15.4; 23.7
Diameter 43 km
Depth 4.3 km
Colongitude 336° at sunrise
Eponym Gaius Secundus

Plinius is a prominent lunar impact crater on the border between Mare Serenitatis to the north and Mare Tranquilitatis to the south. More than 90 km south-southeast is the crater Ross, about 70 km northeast is Dawes and about 70 km WSW is Al-Bakri (or as al-Bakri). Just to the north is a system of rilles named the Rimae Plinius and touching it is the Brackett crater which is more than a crater diameter north. At the northwest edge of the rille is the Promontorium Archerusia, a cape off the western rim that encloses the Mare Serenitatis.

The crater is named after the Roman writer Pliny the Elder.

Its diameter is 43 km long and is 4,300 meters deep. The area is between 1,250 and 1,300 km² and the perimeter is about 125 to 130 km.

The sharp rim of Plinius is slightly oval in form, with a terraced inner wall, and an irregular outer rampart. It lacks a visible ray system. The crater floor is hilly, and in the middle is an irregular central peak that has the appearance of a double crater formation under certain angles of illumination. There is a cleft feature attached to the northern side of the peak. The eastern half of the floor is much more smooth and level than the hummocky west, and this section forms a crescent shape about the central peak.

Satellite craters

Satellite craters of Plinius
Oblique view from Apollo 17 facing south, and showing both Plinius crater and Plinius Rilles
Highly oblique view from Apollo 10, facing northwest.

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

Plinius Latitude Longitude Diameter
A 13.0° N 24.2° E 4 km
B 14.1° N 26.2° E 5 km

Plinius A is located about 50 km to the south and Plinuis B located about 70 km to the east-southeast.

In the media

The northernmost part of the crater along with its rim (Rimae Plinius) was featured in the photo of the album, Apollo: Atmospheres and Soundtracks (1983), the north on the photo is faced to the right.

References

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  • Blue, Jennifer (July 25, 2007). "Gazetteer of Planetary Nomenclature". USGS. Retrieved 2007-08-05. 
  • Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. ISBN 978-0-521-81528-4. 
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  • McDowell, Jonathan (July 15, 2007). "Lunar Nomenclature". Jonathan's Space Report. Retrieved 2007-10-24. 
  • Menzel, D. H.; Minnaert, M.; Levin, B.; Dollfus, A.; Bell, B. (1971). "Report on Lunar Nomenclature by the Working Group of Commission 17 of the IAU". Space Science Reviews. 12 (2): 136–186. Bibcode:1971SSRv...12..136M. doi:10.1007/BF00171763. 
  • Moore, Patrick (2001). On the Moon. Sterling Publishing Co. ISBN 978-0-304-35469-6. 
  • Price, Fred W. (1988). The Moon Observer's Handbook. Cambridge University Press. ISBN 978-0-521-33500-3. 
  • Rükl, Antonín (1990). Atlas of the Moon. Kalmbach Books. ISBN 978-0-913135-17-4. 
  • Webb, Rev. T. W. (1962). Celestial Objects for Common Telescopes (6th revised ed.). Dover. ISBN 978-0-486-20917-3. 
  • Whitaker, Ewen A. (1999). Mapping and Naming the Moon. Cambridge University Press. ISBN 978-0-521-62248-6. 
  • Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 978-1-85233-193-1. 
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