Pasiphae (måne)

Pasiphae
Pasiphae-WISE.gif
Animation Pasiphae från bilder tagna år 2014 av Wide-field Infrared Survey Explorer
Upptäckt
UpptäckarePhilibert Jacques Melotte
Upptäcktsdatum27 januari 1908
Beteckningar
AlternativnamnJupiter VII, Poseidon
Uppkallad efterPasifaë
Omloppsbana
Apoapsis31 209 300 km[1]
Periapsis16 980 250 km[1]
Banmedelradie24 094 770 km[1]
Excentricitet0,2953[1]
Siderisk omloppstid764,082 d (2,09 år)[1]
Medelomloppshastighet2,242 km/s
Inklination143,04° (till Jupiters ekvator), 145,24° (till ekliptikan)[1]
Måne tillNaturlig satellit till Jupiter
Fysikaliska data
Medelradie18 km[2] eller 20 km[3]
Area~11 300 km²
Volym~113 000 km³
Massa~3,0 x 1017kg
Medeldensitet~2,6 g/cm³[3]
Ytgravitation (ekvatorn)~0,022 m/s2
Flykthastighet~0,036 km/s
Albedo0,04[3] eller 0,10[2]
Yttemperatur
Medel: ~124
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Jupiters månar med retrograd rörelse. Gruppen har fått namnet Pasiphae-gruppen av Jupiters åttonde måne.

Pasiphae, Jupiter VIII, är en av Jupiters månar. Parsiphae upptäcktes 1908 av astronomen Philibert Jacques Melotte (1880–1961). Pasiphae har en diameter på ungefär 40 km.

Referenser

Noter

  1. ^ [a b c d e f] R. A. Jacobson (2000). ”The Orbits of the Outer Jovian Satellites” (på engelska). Astronomical Journal 120 (5): sid. 2679–2686. doi:10.1086/316817. Arkiverad från originalet den 13 december 2019. https://web.archive.org/web/20191213084414/http://www.iop.org/EJ/article/1538-3881/120/5/2679/200233.html. Läst 26 april 2015. 
  2. ^ [a b] Dr. David R. Williams (23 november 2007). ”Jovian Satellite Fact Sheet” (på engelska). NASA (National Space Science Data Center). http://nssdc.gsfc.nasa.gov/planetary/factsheet/joviansatfact.html. Läst 26 april 2015. 
  3. ^ [a b c] ”Planetary Satellite Physical Parameters” (på engelska). JPL (Solar System Dynamics). 24 oktober 2008. https://ssd.jpl.nasa.gov/?sat_phys_par. Läst 26 april 2015. 
Jupiters månar
Adrastea · Aitne · Amalthea · Ananke · Aoede · Arche · Autonoe · Callisto · Callirrhoe · Carme · Carpo · Chaldene · Cyllene · Dia · Eirene · Elara · Erinome · Ersa  · Euanthe · Eukelade · Eupheme · Euporie · Europa · Eurydome · Ganymedes · Harpalyke · Hegemone · Helike · Hermippe · Herse · Himalia · Io · Iocaste · Isonoe · Kale · Kallichore · Kalyke  · Kore · Leda · Lysithea · Megaclite · Metis · Mneme · Orthosie  · Pandia · Pasiphae · Pasithee · Philophrosyne · Praxidike · Sinope · Sponde · Taygete · Thebe · Thelxinoe · Themisto · Thyone · Valetudo
The Galilean satellites (the four largest moons of Jupiter).tif
S/2003 J 2 · S/2003 J 4 · S/2003 J 9 · S/2003 J 10 · S/2003 J 12 · S/2003 J 16 · S/2003 J 18 · S/2003 J 19 · S/2003 J 23 · S/2010 J 1 · S/2010 J 2 · S/2011 J 1 · S/2011 J 2 · S/2016 J 1 · S/2017 J 1 · S/2017 J 2 · S/2017 J 3 · S/2017 J 5 · S/2017 J 6 · S/2017 J 7 · S/2017 J 8 · S/2017 J 9
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Media som används på denna webbplats

The Galilean satellites (the four largest moons of Jupiter).tif

This composite includes the four largest moons of Jupiter which are known as the Galilean satellites. The Galilean satellites were first seen by the Italian astronomer Galileo Galilei in 1610. Shown from left to right in order of increasing distance from Jupiter, Io is closest, followed by Europa, Ganymede, and Callisto.

The order of these satellites from the planet Jupiter helps to explain some of the visible differences among the moons. Io is subject to the strongest tidal stresses from the massive planet. These stresses generate internal heating which is released at the surface and makes Io the most volcanically active body in our solar system. Europa appears to be strongly differentiated with a rock/iron core, an ice layer at its surface, and the potential for local or global zones of water between these layers. Tectonic resurfacing brightens terrain on the less active and partially differentiated moon Ganymede. Callisto, furthest from Jupiter, appears heavily cratered at low resolutions and shows no evidence of internal activity.

North is to the top of this composite picture in which these satellites have all been scaled to a common factor of 10 kilometers (6 miles) per picture element.

The Solid State Imaging (CCD) system aboard NASA's Galileo spacecraft acquired the Io and Ganymede images in June 1996, the Europa images in September 1996, and the Callisto images in November 1997.

Launched in October 1989, the spacecraft's mission is to conduct detailed studies of the giant planet, its largest moons and the Jovian magnetic environment.
TheIrregulars JUPITER retro.svg
Författare/Upphovsman: User:Eurocommuter, Licens: CC-BY-SA-3.0
Irregular retrograde satellites of Jupiter
Pasiphae-WISE.gif
W1 band (3.4 μm wavelength range) observations of Jupiter's moon Pasiphae by the Wide-Field Infrared Survey Explorer (WISE) on 28-29 March 2014. This sequence of images were processed from archival WISE data provided by the IRSA.