Deimos - Revision history

Jburk at 21:46, 8 July 2019

2019-07-08T21:46:13Z

← Older revision		Revision as of 22:46, 8 July 2019
Line 10:		Line 10:

	Deimos has an albedo, spectra, and density similar to those of a C- or D-type asteroid, and most likely comprised of carbonaceous material. Deimos is 56% of the size of Phobos and highly non-spherical.		Deimos has an albedo, spectra, and density similar to those of a C- or D-type asteroid, and most likely comprised of carbonaceous material. Deimos is 56% of the size of Phobos and highly non-spherical.


	==Named Features==		==Named Features==

	The craters Swift and Voltaire are the only two named features of the moon, and were named after writers who speculated on the existence of two Martian moons before Phobos and Deimos were discovered.		The craters Swift and Voltaire are the only two named features of the moon, and were named after writers who speculated on the existence of two Martian moons before Phobos and Deimos were discovered.


	==Exploration==		==Exploration==
	Deimos has been photographed in close-up by several spacecraft whose primary mission has been to photograph Mars. No landings on Deimos have been made.		Deimos has been photographed in close-up by several spacecraft whose primary mission has been to photograph Mars. No landings on Deimos have been made.

			In 2017, Francisco Arias <strong>[https://arc.aiaa.org/doi/10.2514/6.2017-4876 proposed a technique dubbed 'Sandbraking']</strong> which would use sand from Deimos (or Phobos) for aerobraking. Using this concept, a small amount of chemical fuel brought from Earth could be used to lift a larger quantity of sand from the surface of the moon(s), which then could be used for a Mars descent manuever.
	In 2017, Francisco Arias [https://arc.aiaa.org/doi/10.2514/6.2017-4876 proposed a ~~techniqued~~ dubbed 'Sandbraking'] which would use sand from Deimos (or Phobos) for aerobraking. Using this concept, a small amount of chemical fuel brought from Earth could be used to lift a larger quantity of sand from the surface of the moon(s), which then could be used for a Mars descent manuever.

	==References==		==References==

Jburk: V1 of article

2019-07-08T21:45:45Z

V1 of article

← Older revision		Revision as of 22:45, 8 July 2019
Line 5:		Line 5:
	Deimos' orbit is slightly [[eccentricity\|eccentric]] (0.0002) with an orbital [[semi-major axis]] of 23,460km.<ref>[http://en.wikipedia.org/wiki/Deimos_%28moon%29#Orbital_characteristics Wikipedia entry for Deimos.]</ref>		Deimos' orbit is slightly [[eccentricity\|eccentric]] (0.0002) with an orbital [[semi-major axis]] of 23,460km.<ref>[http://en.wikipedia.org/wiki/Deimos_%28moon%29#Orbital_characteristics Wikipedia entry for Deimos.]</ref>

	The name Deimos (Dread) comes from Book XV of the Iliad. The name was suggested by Henry Madan (1838–1901)		In Greek mythology, Deimos was the twin brother of Phobos. The name Deimos (Dread or Terror) comes from Book XV of the Iliad. The name was suggested by Henry Madan (1838–1901) and was originally spelled <em>Deimus</em>.

			Deimos was discovered by Asaph Hall III at the United States Naval Observatory in Washington, D.C. on August 12, 1877. Hall was deliberately searching for moons around Mars and also discovered Phobos six days later, on August 18, 1877.

			Deimos has an albedo, spectra, and density similar to those of a C- or D-type asteroid, and most likely comprised of carbonaceous material. Deimos is 56% of the size of Phobos and highly non-spherical.

			==Named Features==

			The craters Swift and Voltaire are the only two named features of the moon, and were named after writers who speculated on the existence of two Martian moons before Phobos and Deimos were discovered.

			==Exploration==
			Deimos has been photographed in close-up by several spacecraft whose primary mission has been to photograph Mars. No landings on Deimos have been made.


			In 2017, Francisco Arias [https://arc.aiaa.org/doi/10.2514/6.2017-4876 proposed a techniqued dubbed 'Sandbraking'] which would use sand from Deimos (or Phobos) for aerobraking. Using this concept, a small amount of chemical fuel brought from Earth could be used to lift a larger quantity of sand from the surface of the moon(s), which then could be used for a Mars descent manuever.

	==References==		==References==
	<references />		<references />


	~~{{stub}}~~

	[[Category:Moons_(Natural_Satellites)]]		[[Category:Moons_(Natural_Satellites)]]

Michel Lamontagne at 17:25, 9 June 2019

2019-06-09T17:25:57Z

← Older revision		Revision as of 18:25, 9 June 2019
Line 1:		Line 1:
	[[Image:Deimos.gif\|thumb\|200px\|right\|A [[Mars Global Surveyor]] image of the moon Deimos.]]		[[Image:Deimos.gif\|thumb\|200px\|right\|A [[Mars Global Surveyor]] image of the moon Deimos.]]

	'''Deimos''' is the smaller outer moon of Mars (the inner moon is [[Phobos]].) ~~Demios~~ is composed of rock rich in carbonaceous material. Although the surface is noticeably smoother than Phobos it is still cratered. The two largest craters each measure about 3 kilometers in diameter.		'''Deimos''' is the smaller outer moon of Mars (the inner moon is [[Phobos]].) [[w:Deimos_(moon)\|Deimos]] is composed of rock rich in carbonaceous material. Although the surface is noticeably smoother than Phobos it is still cratered. The two largest craters each measure about 3 kilometers in diameter.

	Deimos' orbit is slightly [[eccentricity\|eccentric]] (0.0002) with an orbital [[semi-major axis]] of 23,460km.<ref>[http://en.wikipedia.org/wiki/Deimos_%28moon%29#Orbital_characteristics Wikipedia entry for Deimos.]</ref>		Deimos' orbit is slightly [[eccentricity\|eccentric]] (0.0002) with an orbital [[semi-major axis]] of 23,460km.<ref>[http://en.wikipedia.org/wiki/Deimos_%28moon%29#Orbital_characteristics Wikipedia entry for Deimos.]</ref>
Line 8:		Line 8:

	==References==		==References==
	<references/>		<references />

Jburk at 15:51, 10 July 2018

2018-07-10T15:51:58Z

← Older revision		Revision as of 16:51, 10 July 2018
Line 13:		Line 13:
	{{stub}}		{{stub}}

	[[Category:~~Moon~~ (~~Natural_Satellite~~)]]		[[Category:Moons_(Natural_Satellites)]]

Jburk at 15:51, 10 July 2018

2018-07-10T15:51:06Z

← Older revision		Revision as of 16:51, 10 July 2018
Line 13:		Line 13:
	{{stub}}		{{stub}}

	[[Category:~~Natural_Satellites~~]]		[[Category:Moon (Natural_Satellite)]]

Ioneill at 08:21, 8 October 2007

2007-10-08T08:21:26Z

← Older revision		Revision as of 09:21, 8 October 2007
Line 1:		Line 1:
	[[Image:Deimos.gif\|thumb\|200px\|right\|A [[Mars Global Surveyor]] image of the moon Deimos.]]		[[Image:Deimos.gif\|thumb\|200px\|right\|A [[Mars Global Surveyor]] image of the moon Deimos.]]

	'''Deimos''' is the smaller ~~and~~ outer moon of Mars (the inner moon is [[Phobos]].) Demios is composed of rock rich in carbonaceous material. Although the surface is noticeably smoother than Phobos it is still cratered. The two largest craters each measure about 3 kilometers in diameter.		'''Deimos''' is the smaller outer moon of Mars (the inner moon is [[Phobos]].) Demios is composed of rock rich in carbonaceous material. Although the surface is noticeably smoother than Phobos it is still cratered. The two largest craters each measure about 3 kilometers in diameter.

	Deimos' orbit is slightly [[eccentricity\|eccentric]] (0.0002) with an orbital [[semi-major axis]] of 23,460km.<ref>[http://en.wikipedia.org/wiki/Deimos_%28moon%29#Orbital_characteristics Wikipedia entry for Deimos.]</ref>		Deimos' orbit is slightly [[eccentricity\|eccentric]] (0.0002) with an orbital [[semi-major axis]] of 23,460km.<ref>[http://en.wikipedia.org/wiki/Deimos_%28moon%29#Orbital_characteristics Wikipedia entry for Deimos.]</ref>

Ioneill at 08:06, 8 October 2007

2007-10-08T08:06:03Z

← Older revision		Revision as of 09:06, 8 October 2007
Line 1:		Line 1:
	[[Image:Deimos.gif\|thumb\|200px\|right\|A [[Mars Global Surveyor]] image of the moon Deimos.]]		[[Image:Deimos.gif\|thumb\|200px\|right\|A [[Mars Global Surveyor]] image of the moon Deimos.]]

	'''Deimos''' is the smaller and outer moon of Mars (the inner moon is Phobos.) Demios is composed of rock rich in carbonaceous material. Although the surface is noticeably smoother than Phobos it is still cratered. The two largest craters each measure about 3 kilometers in diameter.		'''Deimos''' is the smaller and outer moon of Mars (the inner moon is [[Phobos]].) Demios is composed of rock rich in carbonaceous material. Although the surface is noticeably smoother than Phobos it is still cratered. The two largest craters each measure about 3 kilometers in diameter.

	Deimos' orbit is slightly [[eccentricity\|eccentric]] (0.0002) with an orbital [[semi-major axis]] of 23,460km.<ref>[http://en.wikipedia.org/wiki/Deimos_%28moon%29#Orbital_characteristics Wikipedia entry for Deimos.]</ref>		Deimos' orbit is slightly [[eccentricity\|eccentric]] (0.0002) with an orbital [[semi-major axis]] of 23,460km.<ref>[http://en.wikipedia.org/wiki/Deimos_%28moon%29#Orbital_characteristics Wikipedia entry for Deimos.]</ref>

Ioneill at 08:02, 8 October 2007

2007-10-08T08:02:26Z

← Older revision		Revision as of 09:02, 8 October 2007
Line 3:		Line 3:
	'''Deimos''' is the smaller and outer moon of Mars (the inner moon is Phobos.) Demios is composed of rock rich in carbonaceous material. Although the surface is noticeably smoother than Phobos it is still cratered. The two largest craters each measure about 3 kilometers in diameter.		'''Deimos''' is the smaller and outer moon of Mars (the inner moon is Phobos.) Demios is composed of rock rich in carbonaceous material. Although the surface is noticeably smoother than Phobos it is still cratered. The two largest craters each measure about 3 kilometers in diameter.

	Deimos' orbit is slightly [[eccentricity\|eccentric]] (0.0002) with an orbital [[semi-major axis]] ~~([[apoareion]])~~ of 23,460km.<ref>[http://en.wikipedia.org/wiki/Deimos_%28moon%29#Orbital_characteristics Wikipedia entry for Deimos.]</ref>		Deimos' orbit is slightly [[eccentricity\|eccentric]] (0.0002) with an orbital [[semi-major axis]] of 23,460km.<ref>[http://en.wikipedia.org/wiki/Deimos_%28moon%29#Orbital_characteristics Wikipedia entry for Deimos.]</ref>

	The name Deimos (Dread) comes from Book XV of the Iliad. The name was suggested by Henry Madan (1838–1901)		The name Deimos (Dread) comes from Book XV of the Iliad. The name was suggested by Henry Madan (1838–1901)

Ioneill: change to stub

2007-10-06T20:45:55Z

change to stub

← Older revision		Revision as of 21:45, 6 October 2007
Line 10:		Line 10:
	<references/>		<references/>

	{{~~Subminimal~~}}
			{{stub}}

	[[Category:Natural_Satellites]]		[[Category:Natural_Satellites]]

Ioneill: adding orbital characteristics

2007-10-06T20:45:16Z

adding orbital characteristics

← Older revision		Revision as of 21:45, 6 October 2007
Line 1:		Line 1:
	~~{{Subminimal}}~~

	[[Image:Deimos.gif\|thumb\|200px\|right\|A [[Mars Global Surveyor]] image of the moon Deimos.]]		[[Image:Deimos.gif\|thumb\|200px\|right\|A [[Mars Global Surveyor]] image of the moon Deimos.]]

			'''Deimos''' is the smaller and outer moon of Mars (the inner moon is Phobos.) Demios is composed of rock rich in carbonaceous material. Although the surface is noticeably smoother than Phobos it is still cratered. The two largest craters each measure about 3 kilometers in diameter.

	Deimos is ~~the smaller and outer moon of Mars~~ (~~the inner moon is Phobos~~.) ~~Demios is composed~~ of ~~rock rich in carbonaceous material~~. ~~Although the surface is noticeably smoother than Phobos it is still cratered~~. ~~The two largest craters each measure about 3 kilometers in diameter~~.		Deimos' orbit is slightly [[eccentricity\|eccentric]] (0.0002) with an orbital [[semi-major axis]] ([[apoareion]]) of 23,460km.<ref>[http://en.wikipedia.org/wiki/Deimos_%28moon%29#Orbital_characteristics Wikipedia entry for Deimos.]</ref>


	The name Deimos (Dread) comes from Book XV of the Iliad. The name was suggested by Henry Madan (1838–1901)		The name Deimos (Dread) comes from Book XV of the Iliad. The name was suggested by Henry Madan (1838–1901)

			==References==
			<references/>

			{{Subminimal}}
	[[Category:Natural_Satellites]]		[[Category:Natural_Satellites]]