Periareion - Revision history

RichardWSmith: Adjusted location of a reference.

2021-03-21T19:18:42Z

Adjusted location of a reference.

RichardWSmith: /* Difference of Northern and Southern Climate: */

2021-03-03T08:59:35Z

Difference of Northern and Southern Climate:

RichardWSmith: /* REFERENCES: */

2021-03-03T05:22:06Z

REFERENCES:

RichardWSmith: Discussed why mars orbital periareion makes Southern Hemisphere colder.

2021-03-03T05:20:45Z

Discussed why mars orbital periareion makes Southern Hemisphere colder.

Jburk at 15:48, 10 July 2018

2018-07-10T15:48:38Z

ChristiaanK: Clarify details

2013-02-22T09:44:16Z

Clarify details

ChristiaanK: Fix definition

2013-02-22T09:36:03Z

Fix definition

ChristiaanK: Pedantry

2013-02-22T08:59:47Z

Pedantry

Ioneill: New page: ==Definition== '''The point at which a body's orbit makes it's closest approach to Mars.''' The point at which a body's orbit is farthest from Mars is known as Apoareion [[Category...

2007-10-06T19:05:22Z

New page: ==Definition== '''The point at which a body's orbit makes it's closest approach to Mars.''' The point at which a body's orbit is farthest from Mars is known as Apoareion [[Category...

New page

==Definition==

'''The point at which a body's orbit makes it's closest approach to Mars.'''

The point at which a body's orbit is farthest from Mars is known as [[Apoareion]]

[[Category:Orbital Mechanics]]

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 Unlike [[perigee]], other apsides such as periareion and [[perilune]] are measured from the center of mass and not the surface of the body.
@@ Line 14: / Line 16: @@
 Since the northern hemisphere is generally at lower attitude, the air is thicker there, which further moderates the local temperature swings and provides more radiation protection.
 ==References==

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 Earth's orbit is nearly circular, so the northern and Southern Hemispheres have summers and winters of nearly identical lengths.  However, Mars' orbit is more strongly elliptical.  (Earth has an orbital eccentricity of 0.017, where as Mars' eccentricity is 0.093.)  The Martian South Pole is pointing towards the Sun at periapsis.
-This means that Mars is closest to the Sun in the south hemisphere's summer, and farthest from the Sun in the south hemisphere's winter.  Note that when Mars is far from the Sun, it travels slower in its orbit.  This makes the southern summers short, and the souther winters long.  This results in the Southern Hemisphere having more extreme weather, hotter summers, and much colder winters.  The north polar cap gets a frosting of carbon dioxide ice in its winter, but the south polar ice caps build up a thick layer of CO2 ice each winter.
+This means that Mars is closest to the Sun in the south hemisphere's summer, and farthest from the Sun in the south hemisphere's winter.  Note that when Mars is far from the Sun, it travels slower in its orbit.  This makes the southern summers short, and the southern winters long.  This results in the Southern Hemisphere having more extreme weather, hotter summers, and much colder winters.  The north polar cap gets a frosting of carbon dioxide ice in its winter, but the south polar ice caps build up a thick layer of CO2 ice each winter.
 Since the northern hemisphere is generally at lower attitude, the air is thicker there, which further moderates the local temperature swings and provides more radiation protection.
+<ref name="Wertz">J.R. Wertz - Orbits and astrodynamics in J.R. Wertz, D.F. Everett & J.J. Puschell eds. Space mission engineering: The new SMAD ISBN 978-1-881883-15-9 p. 202</ref>
 ==References==

← Older revision		Revision as of 05:22, 3 March 2021
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−	~~==REFERENCES:==~~
	<ref name=Wertz>J.R. Wertz - Orbits and astrodynamics in J.R. Wertz, D.F. Everett & J.J. Puschell eds. Space mission engineering: The new SMAD ISBN 978-1-881883-15-9 p. 202</ref>		<ref name=Wertz>J.R. Wertz - Orbits and astrodynamics in J.R. Wertz, D.F. Everett & J.J. Puschell eds. Space mission engineering: The new SMAD ISBN 978-1-881883-15-9 p. 202</ref>

@@ Line 5: / Line 5: @@
 The greatest distance from Mars is known as [[Apoareion]].
-Unlike [[perigee]], other apsides such as periareion and [[perilune]] are measured from the center of mass and not the surface of the body.<ref name=Wertz>J.R. Wertz - Orbits and astrodynamics in J.R. Wertz, D.F. Everett & J.J. Puschell eds. Space mission engineering: The new SMAD ISBN 978-1-881883-15-9 p. 202</ref>
+Unlike [[perigee]], other apsides such as periareion and [[perilune]] are measured from the center of mass and not the surface of the body.
 ==References==

← Older revision		Revision as of 15:48, 10 July 2018
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	<references />		<references />

−	[[Category:~~Orbital Mechanics~~]]	+	[[Category:Orbit]]

← Older revision		Revision as of 09:44, 22 February 2013
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	The greatest distance from Mars is known as [[Apoareion]].		The greatest distance from Mars is known as [[Apoareion]].

		+	Unlike [[perigee]], other apsides such as periareion and [[perilune]] are measured from the center of mass and not the surface of the body.<ref name=Wertz>J.R. Wertz - Orbits and astrodynamics in J.R. Wertz, D.F. Everett & J.J. Puschell eds. Space mission engineering: The new SMAD ISBN 978-1-881883-15-9 p. 202</ref>
		+
		+	==References==
		+	<references />

	[[Category:Orbital Mechanics]]		[[Category:Orbital Mechanics]]

@@ Line 1: / Line 1: @@
 ==Definition==
-'''The point at which a body in Mars orbit comes closest to Mars,''' i.e. the [[periapsis]] of a body in Mars orbit.
+The closest distance that a body in Mars orbit comes to Mars,  i.e. the [[periapsis]] of a body in Mars orbit.
-The point at which a body's orbit is farthest from Mars is known as [[Apoareion]]
+The greatest distance from Mars is known as [[Apoareion]].
 [[Category:Orbital Mechanics]]