Dawes (Martian crater)

Dawes (Martian crater)
Dawes Crater floor with fresh impact craters. Click on image to see dark ejecta from some craters that formed when the impact reached a dark layer.
Quadrangle map of Sinus Sabaeus labeled with major features. Colored rectangles represent image footprints of Mars Global Surveyor.

Dawes Crater is located in the Sinus Sabaeus quadrangle of Mars, at 9°12′S 38°00′E / 9.2°S 38°E / -9.2; 38[1]Coordinates: 9°12′S 38°00′E / 9.2°S 38°E / -9.2; 38[1]. It is about 191 km (119 mi) in diameter, and was named after William R. Dawes, a British astronomer (1799–1868)[2] who was ahead of his time in believing that Mars only had a thin atmosphere. Dawes presumed that the atmosphere of Mars was thin because surface markings on the planet could easily be seen.[3]

References

  1. ^ Blue, Jennifer. "Dawes". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
  2. ^ "Gazetteer of Planetary Nomenclature". USGS. http://planetarynames.wr.usgs.gov. 
  3. ^ Glasstone, S. (1968). The Book of Mars. Washington D.C.: NASA. .



Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать реферат

Look at other dictionaries:

  • Dawes (lunar crater) — For other uses, see Dawes (disambiguation). Dawes (lunar crater) Dawes from Apollo 17. NASA photo. Coordinates …   Wikipedia

  • Dawes — may refer to: Contents 1 People 2 Places 3 Craters 4 Other uses 5 See also …   Wikipedia

  • Geography of Mars — Topographic map of Mars, courtesy NASA Goddard Space Flight Center, from Mars Global Surveyor laser altimeter research led by Maria Zuber and David Smith. North is at the top. Notable features include the Tharsis volcanoes in the west (including… …   Wikipedia

  • Marte (planeta) — Para otros usos de este término, véase Marte. Marte Marte. En primer término, el Valles Mariner …   Wikipedia Español

  • Vida en Marte — Para el capítulo de la serie El Ala Oeste, véase Vida en Marte (El Ala Oeste). Marte en un posible pasado lejano (o futuro cercano). La posibilidad de vida en Marte, tanto pasada como presente. A pesar de los recientes descubrimientos, el… …   Wikipedia Español

  • Classical albedo features on Mars — Mars, as seen through a small telescope, showing the patterns of colour known as albedo features. The classical albedo features of Mars are the light and dark features that can be seen on the planet Mars through an Earth based telescope. Before… …   Wikipedia

  • Clima de Marte — Mosaico de Marte visto por la Viking 1, 22 de febrero 1980. El clima de Marte es más extremo que el que podemos encontrar en la Tierra, pues es mucho más frío y con una variabilidad de temperaturas muy grande. Además, tormentas de polvo a escala… …   Wikipedia Español

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”