Anaximander (crater)

Anaximander
	Oblique Lunar Orbiter 4 image
Coordinates	66°58′N 51°26′W / 66.97°N 51.44°W
Diameter	68.71 km
Depth	2.4 km
Colongitude	52° at sunrise
Eponym	Anaximander

Anaximander is a lunar impact crater that is located near the northwest limb of the Moon. It is joined at the northern rim by the crater Carpenter, a younger and better-defined formation. To the southeast is the much larger J. Herschel, a formation of the variety known as a walled plain.^[2]

The outer wall of Anaximander is heavily worn and eroded, with multiple notches and breaks. There is no central peak, but the floor contains several small craterlets and a multitude of tiny pits from minor impacts. This crater has merged with the larger Anaximander D to the south, and there is a wide break in their common rims where they have joined. To the northwest a low rise in the surface is all that separated Anaximander from the much larger satellite crater Anaximander B.^[3]^: 67

The crater is named for the 6th century BCE Greek philosopher and astronomer Anaximander. Its designation was formally adopted by the International Astronomical Union in 1935.^[1] The name was introduced into lunar nomenclature in 1651 by Giovanni Ricciolli.^[4]

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 Anaximander.^[5]

Anaximander^[3]^: 291	Latitude	Longitude	Diameter
A	68.0° N	50.2° W	16 km
B	67.8° N	60.7° W	78 km
D	65.4° N	50.1° W	92 km
H	65.2° N	40.8° W	9 km
R	66.2° N	54.9° W	8 km
S	68.3° N	53.4° W	7 km
T	67.2° N	52.0° W	7 km
U	64.1° N	48.3° W	8 km

References

1 2 "Anaximander". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
↑ Moore, Patrick (2001). On the Moon. Sterling Publishing Co. p. 183. ISBN 978-0-304-35469-6.
1 2 Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. ISBN 978-0-521-81528-4.
↑ Whitaker, Ewen A. (1999). Mapping and Naming the Moon. Cambridge University Press. pp. 60, 210. ISBN 978-0-521-62248-6.
↑ Grego, P. (2015). "Satellite Crater". In Hargitai, H.; Kereszturi, Á. (eds.). Encyclopedia of Planetary Landforms. New York, NY: Springer. doi:10.1007/978-1-4614-3134-3_328.

Sources

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. Reprint: ISBN 978-0-486-20917-3
Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 978-1-85233-193-1.

External links

"A Violet Moon". Astronomy Picture of the Day (APOD). July 31, 1996. Retrieved August 22, 2017. - includes several craters such as Anaximander

[GPN-1] 1 2 "Anaximander". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.

[Moore_2001-2] Moore, Patrick (2001). On the Moon. Sterling Publishing Co. p. 183. ISBN 978-0-304-35469-6.

[Bussey_Spudis_2004-3] 1 2 Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. ISBN 978-0-521-81528-4.

[Whitaker_1999-4] Whitaker, Ewen A. (1999). Mapping and Naming the Moon. Cambridge University Press. pp. 60, 210. ISBN 978-0-521-62248-6.

[Grego_2015-5] Grego, P. (2015). "Satellite Crater". In Hargitai, H.; Kereszturi, Á. (eds.). Encyclopedia of Planetary Landforms. New York, NY: Springer. doi:10.1007/978-1-4614-3134-3_328.

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