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gptkbp:instanceOf
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Lagrange point
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gptkbp:advantage
|
stable thermal environment
unobstructed view of deep space
minimal interference from Earth and Sun
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gptkbp:alsoKnownAs
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gptkb:L2
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gptkbp:category
|
Astronomical locations
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gptkbp:discoveredBy
|
gptkb:Joseph-Louis_Lagrange
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gptkbp:distanceFromEarth
|
approximately 1.5 million kilometers
on the line defined by the Sun and Earth, beyond Earth
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gptkbp:firstSpacecraftAtL2
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gptkb:WMAP
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gptkbp:gravitationalBalance
|
net force of gravity from Sun and Earth equals centripetal force
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|
https://www.w3.org/2000/01/rdf-schema#label
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Lagrangian point 2
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gptkbp:locatedIn
|
gptkb:Earth-Sun_system
other two-body systems
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gptkbp:numberOfLagrangianPoints
|
5 in each two-body system
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gptkbp:orbitType
|
same as Earth around the Sun
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gptkbp:stable
|
semi-stable (requires station-keeping)
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gptkbp:usedBy
|
gptkb:Gaia_spacecraft
gptkb:Planck_spacecraft
gptkb:Herschel_Space_Observatory
gptkb:James_Webb_Space_Telescope
gptkb:Euclid_spacecraft
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gptkbp:usedFor
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infrared astronomy
space observatories
cosmic microwave background observations
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gptkbp:bfsParent
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gptkb:Lagrangian_point_5
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gptkbp:bfsLayer
|
6
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