S/2016 J 1
Jupiter LIV | |
Upptäckt[1] | |
---|---|
Upptäckare | Scott S. Sheppard m. fl. [2] |
Upptäcktsdatum | 2018 |
Beteckningar | |
MPC-beteckning | S/2016 J 1 |
Omloppsbana | |
Periapsis | 328,2°[3] |
Banmedelradie | 20 650 845 km[3] |
Excentricitet | 0,141[3] |
Siderisk omloppstid | 602,7 dagar[3] |
Medelanomali | 25,53°[3] |
Inklination | 139,8°[3] |
Longitud för uppstigande nod | 293,8°[3] |
Måne till | Jupiter |
Fysikaliska data | |
Medelradie | 2 km[3] |
Skenbar magnitud | +24,0[3] |
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Jupiter LIV, med den preliminära beteckningen S/2016 J 1 är en av Jupiters månar. Den blev först observerad under 2016[1], men kungörandet dröjde till i juni 2017. Den upptäcktes av en grupp astronomer vid University of Hawaii.[2]
Jupiter LIV är cirka 2 kilometer i diameter och roterar kring Jupiter på ett avstånd av cirka 20 650 845 kilometer.[3] Den tillhör Ananke-gruppen, en grupp oregelbundna månar som roterar kring Jupiter i retrograda banor.
Jupiter LIV har än så länge (2020) inte fått något egennamn.[3]
Referenser
- ^ [a b] ”S/2016 J1” (på engelska). In depth; by the numbers. NASA Science. 29 augusti 2019. https://solarsystem.nasa.gov/moons/jupiter-moons/s-2016-j-1/in-depth/. Läst 1 mars 2020.
- ^ [a b] ”MPEC 2017-L08 : S/2016 J 1” (på engelska). Minor Planet Center. International Astronomical Union (IAU). http://www.minorplanetcenter.net/mpec/K17/K17L08.html. Läst 1 mars 2020.
- ^ [a b c d e f g h i j k] Sheppard, Scott S.. ”JupiterMoons” (på engelska). carnegiescience.edu. sites.google.com. https://sites.google.com/carnegiescience.edu/sheppard/moons/jupitermoons. Läst 1 mars 2020.
Externa länkar
- The Jupiter Satellite Page (engelska)
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Media som används på denna webbplats
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.