S/2003 J 4

S/2003 J 4 adalah satelit alami Jupiter. Satelit ini ditemukan oleh tim astronom dari Universitas Hawaii yang dipimpin oleh Scott S. Sheppard pada tahun 2003.^[1]^[2]

S/2003 J 4 berdiameter sekitar 2 km, dan mengorbit Jupiter pada jarak rata-rata 23.571.000 km dalam 739,294 hari, dengan inklinasi sebesar 147° terhadap ekliptika (149° terhadap ekuator Jupiter), dengan arah retrograde dan dengan eksentrisitas sebesar 0,3003.

Satelit ini termasuk dalam kelompok Pasiphae, yaitu kelompok satelit ireguler retrograde yang mengorbit Jupiter pada jarak antara 22,8 hingga 24,1 Gm, dan dengan inklinasi berkisar antara 144,5° hingga 158,3°.

Satelit ini belum terlihat kembali sejak penemuannya pada tahun 2003 dan saat ini masih dinyatakan asteroid.^[3]^[4]^[5]^[6]

Referensi

^ IAUC 8087: Satellites of Jupiter^{[pranala nonaktif permanen]} 2003 March 4 (discovery)
^ 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)
^ Beatty, Kelly (4 April 2012). "Outer-Planet Moons Found — and Lost". www.skyandtelescope.com. Sky & Telescope. Diakses tanggal 27 June 2017.
^ Brozović, Marina; Jacobson, Robert A. (9 March 2017). "The Orbits of Jupiter's Irregular Satellites". The Astronomical Journal. 153 (4): 147. Bibcode:2017AJ....153..147B. doi:10.3847/1538-3881/aa5e4d.
^ Jacobson, B.; Brozović, M.; Gladman, B.; Alexandersen, M.; Nicholson, P. D.; Veillet, C. (28 September 2012). "Irregular Satellites of the Outer Planets: Orbital Uncertainties and Astrometric Recoveries in 2009–2011". The Astronomical Journal. 144 (5): 132. Bibcode:2012AJ....144..132J. doi:10.1088/0004-6256/144/5/132.
^ Sheppard, Scott S. (2017). "New Moons of Jupiter Announced in 2017". home.dtm.ciw.edu. Diakses tanggal 27 June 2017. We likely have all of the lost moons in our new observations from 2017, but to link them back to the remaining lost 2003 objects requires more observations a year later to confirm the linkages, which will not happen until early 2018. ... There are likely a few more new moons as well in our 2017 observations, but we need to reobserve them in 2018 to determine which of the discoveries are new and which are lost 2003 moons.

Pranala luar

[1] IAUC 8087: Satellites of Jupiter^{[pranala nonaktif permanen]} 2003 March 4 (discovery)

[2] 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)

[3] Beatty, Kelly (4 April 2012). "Outer-Planet Moons Found — and Lost". www.skyandtelescope.com. Sky & Telescope. Diakses tanggal 27 June 2017.

[Jacobson-4] Brozović, Marina; Jacobson, Robert A. (9 March 2017). "The Orbits of Jupiter's Irregular Satellites". The Astronomical Journal. 153 (4): 147. Bibcode:2017AJ....153..147B. doi:10.3847/1538-3881/aa5e4d.

[5] Jacobson, B.; Brozović, M.; Gladman, B.; Alexandersen, M.; Nicholson, P. D.; Veillet, C. (28 September 2012). "Irregular Satellites of the Outer Planets: Orbital Uncertainties and Astrometric Recoveries in 2009–2011". The Astronomical Journal. 144 (5): 132. Bibcode:2012AJ....144..132J. doi:10.1088/0004-6256/144/5/132.

[6] Sheppard, Scott S. (2017). "New Moons of Jupiter Announced in 2017". home.dtm.ciw.edu. Diakses tanggal 27 June 2017. We likely have all of the lost moons in our new observations from 2017, but to link them back to the remaining lost 2003 objects requires more observations a year later to confirm the linkages, which will not happen until early 2018. ... There are likely a few more new moons as well in our 2017 observations, but we need to reobserve them in 2018 to determine which of the discoveries are new and which are lost 2003 moons.

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