Jump to content

S/2003 J 2

From Simple English Wikipedia, the free encyclopedia
S/2003 J 2
S/2003 J 2 imaged by the Canada-France-Hawaii Telescope during follow-up observations in February 2003
Discovery [1]
Discovered byScott S. Sheppard et al.
Discovery siteMauna Kea Obs.
Discovery date5 February 2003
Orbital characteristics [2]
Epoch 17 December 2020 (JD 2459200.5)
Observation arc16.42 yr (5,996 d)
Earliest precovery date11 December 2001
0.1373976 AU (20,554,390 km)
Eccentricity0.2776569
–1.65 yr (–602.02 d)
114.43587°
0° 35m 52.742s / day
Inclination149.20392° (to ecliptic)
50.46976°
224.95527°
Satellite ofJupiter
Physical characteristics
Mean diameter
≈2 km[3]
Albedo0.04 (assumed)[3]
23.2[3]
16.7[2]

    S/2003 J 2 is an unnamed non-spherical moon of Jupiter. It was found by a team of astronomers from the University of Hawaii led by Scott S. Sheppard and David C. Jewitt and was announced on March 4, 2003 [4][5] As of 2006, it is Jupiter's farthest known moon.

    S/2003 J 2 is about two kilometres in diameter, and orbits Jupiter at an average distance of 29,540,000 km in 980 days, at an inclination of 154° to the ecliptic (152° to Jupiter's equator) and with an orbital eccentricity of 0.2255.[6][7][8]

    It seems to belong to a group all of its own, with a distant and retrograde orbit.

    References

    [change | change source]
    1. ↑ MPEC 2003-E11: S/2003 J 1, 2003 J 2, 2003 J 3, 2003 J 4, 2003 J 5, 2003 J 6, 2003 J 7 2003 March 4 (discovery and ephemeris)
    2. 1 2 "MPEC 2021-B134 : S/2003 J 2". Minor Planet Electronic Circular. Minor Planet Center. 26 January 2021. Retrieved 26 January 2021.
    3. 1 2 3 S.S. Sheppard (2019), Moons of Jupiter, Carnegie Science, on line
    4. ↑ IAUC 8087: Satellites of Jupiter 2003 March 4 (discovery)
    5. ↑ Sheppard, S. S.; and Jewitt, D. C.; An Abundant Population of Small Irregular Satellites Around Jupiter, Nature, Vol. 423 (May 2003), pp. 261-263
    6. ↑ MPEC 2003-E11: S/2003 J 1, 2003 J 2, 2003 J 3, 2003 J 4, 2003 J 5, 2003 J 6, 2003 J 7 2003 March 4 (discovery and ephemeris)
    7. ↑ Mean orbital elements from NASA JPL (August 2006)
    8. ↑ Current (2004 July 14, JD= 2453200.5) orbital elements as reported by IAU-MPC NSES are a= 0.2024818 AU, e=0.1882469 i=153.52114
    Retrieved from "https://simple.wikipedia.org/w/index.php?title=S/2003_J_2&oldid=10429909"