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==References==
==References==
<references/>
<references/>
{{refbegin}}
{{Lunar crater references}}
* {{cite book
| last1 = Andersson
| first1 = L. E.
| last2 = Whitaker
| first2 = E. A.
| authorlink2 = Ewen Whitaker
| year = 1982
| title = [[NASA]] Catalogue of Lunar Nomenclature
| publisher = NASA RP-1097
| ref = harv
}}
* {{cite web
| last = Blue
| first = Jennifer
| date = July 25, 2007
| title = Gazetteer of Planetary Nomenclature
| publisher = [[United States Geological Survey|USGS]]
| url = http://planetarynames.wr.usgs.gov/
| accessdate = 2007-08-05
| ref = harv
}}
* {{cite book
| last1 = Bussey
| first1 = B.
| authorlink1 = Ben Bussey
| last2 = Spudis
| first2 = P.
| authorlink2 = Paul Spudis
| year = 2004
| title = The Clementine Atlas of the Moon
| publisher = Cambridge University Press
| location = New York
| isbn = 978-0-521-81528-4
| ref = harv
}}
* {{cite book
| last1 = Cocks
| first1 = Elijah E.
| last2 = Cocks
| first2 = Josiah C.
| year = 1995
| title = Who's Who on the Moon: A Biographical Dictionary of Lunar Nomenclature
| publisher = Tudor Publishers
| isbn = 978-0-936389-27-1
| ref = harv
}}
* {{cite web
| last = McDowell
| first = Jonathan
| date = July 15, 2007
| url = http://host.planet4589.org/astro/lunar/
| title = Lunar Nomenclature
| publisher = Jonathan's Space Report
| accessdate = 2007-10-24
| ref = harv
}}
* {{cite doi | 10.1007/BF00171763 }}
* {{cite book
| first = Patrick
| last = Moore
| authorlink = Patrick Moore
| year = 2001
| title = On the Moon
| publisher = Sterling Publishing Co
| isbn = 978-0-304-35469-6
| ref = harv
}}
* {{cite book
| first = Fred W.
| last = Price
| year = 1988
| title = The Moon Observer's Handbook
| publisher = Cambridge University Press
| isbn = 978-0-521-33500-3
| ref = harv
}}
* {{cite book
| last = Rükl
| first = Antonín
| authorlink = Antonín Rükl
| year = 1990
| title = Atlas of the Moon
| publisher = Kalmbach Books
| isbn = 978-0-913135-17-4
| ref = harv
}}
* {{cite book
| last = Webb
| first = Rev. T. W.
| authorlink = Thomas William Webb
| year = 1962
| title = Celestial Objects for Common Telescopes
| edition = 6th revision
| publisher = Dover
| isbn = 978-0-486-20917-3
| ref = harv
}}
* {{cite book
| first = Ewen A.
| last = Whitaker
| authorlink = Ewen Whitaker
| year = 1999
| title = Mapping and Naming the Moon
| publisher = Cambridge University Press
| isbn = 978-0-521-62248-6
| ref = harv
}}
* {{cite book
| first = Peter T.
| last = Wlasuk
| year = 2000
| title = Observing the Moon
| publisher = Springer
| isbn = 978-1-85233-193-1
| ref = harv
}}
{{refend}}


==External links==
==External links==

Revision as of 23:16, 28 June 2014

Archimedes
Lunar Orbiter 4 image
Diameter83 km
Depth2.1 km
Colongitude4° at sunrise
EponymArchimedes
Archimedes from Apollo 15. NASA photo.

Archimedes is a large lunar impact crater on the eastern edges of the Mare Imbrium.

Description

The diameter of Archimedes is the largest of any crater on the Mare Imbrium. The rim has a significant outer rampart brightened with ejecta and the upper portion of a terraced inner wall, but lacks the ray system associated with younger craters. A triangular promontory extends 30 kilometers from the southeast of the rim.

The interior of the crater lacks a central peak, and is flooded with lava. It is devoid of significant raised features, although there are a few tiny meteor craters near the rim. Scattered wisps of bright ray material lie across the floor, most likely deposited by the impact that created Autolycus.

Surroundings

To the south of Archimedes extends the Montes Archimedes, a mountainous region. On the southeastern rim is the Palus Putredinis, a lava-flooded plain containing a system of rilles named the Rimae Archimedes, which extends over 150 kilometers. North-northwest of Archimedes stand the Montes Spitzbergen, a string of peaks in the Mare Imbrium. East of Archimedes is the crater Autolycus. Northeast of Archimedes is the prominent crater Aristillus. The lava plain between Archimedes, Aristillus, and Autolycus forms the Sinus Lunicus bay of Mare Imbrium. A wrinkle ridge leads away from Archimedes toward the north-northwest, crossing this mare.

Names

Archimedes is named after the Greek scientist Archimedes. Like many of the craters on the Moon's near side, it was given its name by Giovanni Riccioli, whose 1651 nomenclature system has become standardized.[1] Earlier lunar cartographers had given the feature different names. Michael van Langren's 1645 map calls it "Roma" after the city of Rome.[2] And Johannes Hevelius called it "Mons Argentarius" after Monte Argentario region in Italy.[3]

Exploration

The stretch of lunar surface between Archimedes and Autolycus was the site of the crash-landing of the Soviet probe Luna 2. This was the first craft to reach the surface of the Moon, landing September 13, 1959.

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 Archimedes.

Archimedes Latitude Longitude Diameter
C 31.6° N 1.5° W 8 km
D 32.2° N 2.6° W 5 km
E 25.0° N 7.2° W 3 km
G 29.1° N 8.2° W 3 km
H 23.9° N 7.0° W 4 km
L 25.0° N 2.6° W 4 km
M 26.1° N 3.2° W 3 km
N 24.1° N 3.9° W 3 km
P 25.9° N 2.5° W 3 km
Q 28.5° N 2.4° W 3 km
R 26.0° N 6.6° W 4 km
S 29.5° N 2.7° W 3 km
T 30.3° N 5.0° W 3 km
U 32.8° N 1.9° W 3 km
V 32.9° N 4.0° W 3 km
W 23.8° N 6.2° W 4 km
X 31.0° N 8.0° W 2 km
Y 29.9° N 9.5° W 2 km
Z 26.8° N 1.4° W 2 km

The following craters have been renamed by the IAU.

  • Lunar crater Archimedes in the infrared. Image courtesy of NOT and SO: M. Gålfalk, G. Olofsson, and H.-G. Florén, taken with the SIRCA camera.
    Lunar crater Archimedes in the infrared. Image courtesy of NOT and SO: M. Gålfalk, G. Olofsson, and H.-G. Florén, taken with the SIRCA camera.
  • Detail map of Mare Imbrium's features. Archimedes is the feature marked "G".
    Detail map of Mare Imbrium's features. Archimedes is the feature marked "G".

References

  1. ^ Ewen A. Whitaker, Mapping and Naming the Moon (Cambridge University Press, 1999), p.213.
  2. ^ Ewen A. Whitaker, Mapping and Naming the Moon (Cambridge University Press, 1999), p. 198.
  3. ^ Ewen A. Whitaker, Mapping and Naming the Moon (Cambridge University Press, 1999), p. 202.
  • Andersson, L. E.; Whitaker, E. A. (1982). NASA Catalogue of Lunar Nomenclature. NASA RP-1097. {{cite book}}: Invalid |ref=harv (help)
  • Blue, Jennifer (July 25, 2007). "Gazetteer of Planetary Nomenclature". USGS. Retrieved 2007-08-05. {{cite web}}: Invalid |ref=harv (help)
  • Bussey, B.; Spudis, P. (2004). The Clementine Atlas of the Moon. New York: Cambridge University Press. ISBN 978-0-521-81528-4. {{cite book}}: Invalid |ref=harv (help)
  • 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. {{cite book}}: Invalid |ref=harv (help)
  • McDowell, Jonathan (July 15, 2007). "Lunar Nomenclature". Jonathan's Space Report. Retrieved 2007-10-24. {{cite web}}: Invalid |ref=harv (help)
  • Attention: This template ({{cite doi}}) is deprecated. To cite the publication identified by doi: 10.1007/BF00171763 , please use {{cite journal}} (if it was published in a bona fide academic journal, otherwise {{cite report}} with |doi= 10.1007/BF00171763 instead.
  • Moore, Patrick (2001). On the Moon. Sterling Publishing Co. ISBN 978-0-304-35469-6. {{cite book}}: Invalid |ref=harv (help)
  • Price, Fred W. (1988). The Moon Observer's Handbook. Cambridge University Press. ISBN 978-0-521-33500-3. {{cite book}}: Invalid |ref=harv (help)
  • Rükl, Antonín (1990). Atlas of the Moon. Kalmbach Books. ISBN 978-0-913135-17-4. {{cite book}}: Invalid |ref=harv (help)
  • Webb, Rev. T. W. (1962). Celestial Objects for Common Telescopes (6th revision ed.). Dover. ISBN 978-0-486-20917-3. {{cite book}}: Invalid |ref=harv (help)
  • Whitaker, Ewen A. (1999). Mapping and Naming the Moon. Cambridge University Press. ISBN 978-0-521-62248-6. {{cite book}}: Invalid |ref=harv (help)
  • Wlasuk, Peter T. (2000). Observing the Moon. Springer. ISBN 978-1-85233-193-1. {{cite book}}: Invalid |ref=harv (help)
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