Edison (crater)

Edison

Oblique Apollo 16 mapping camera image
Coordinates	25.0°N 99.1°E / 25.0; 99.1
Diameter	62 km
Depth	Unknown
Colongitude	261° at sunrise
Eponym	Thomas A. Edison

Oblique Apollo 14 Hasselblad camera image
Edison is right of center, Edison T is left of center

Edison is a lunar impact crater on the far side of the Moon. It is located just behind the north-northeastern limb of the Moon, a region that is sometimes brought into sight from Earth during favorable librations. However even at such times not much detail can be discerned, and the crater is better observed by orbiting spacecraft.

The Edison crater is attached to the southeastern outer rim of the crater Lomonosov, to the east of the walled plain Joliot. The satellite crater Edison T is attached to the western rim of Edison and the eastern rim of Joliot. To the south of Edison is the crater Dziewulski, and due east is Artamonov.

The outer rim of this crater is somewhat eroded, with two small craters along the southern edge, and the outer rampart of Lomonosov intruding slightly into the interior floor. The most intact section of rim is along the eastern side. The interior floor is relatively level, particularly in the southern half, and there is a small craterlet near the western inner wall. The floor displays dark patches and streaks of higher albedo surface where the ray system from Giordano Bruno to the north-northwest. However it is not as dark in hue as the floor of Lomonosov.

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 Edison.

Edison	Latitude	Longitude	Diameter
T	24.7° N	97.1° E	48 km

References

• Andersson, L. E.; Whitaker, E. A. (1982). NASA Catalogue of Lunar Nomenclature. NASA RP-1097.
• 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.
• Cocks, Elijah E.; Cocks, Josiah C. (1995). Who's Who on the Moon: A Biographical Dictionary of Lunar Nomenclature. Tudor Publishers. ISBN 978-0-936389-27-1.
• 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. S2CID 122125855.
• 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.