S/2003 J 2: Difference between revisions
Content deleted Content added
No edit summary |
Corrected data so it would match the JPL reference and (approximately) the infobox number (.4074). |
||
| Line 12: | Line 12: | ||
'''{{nowrap|S/2003 J 2}}''' is a [[retrograde motion|retrograde]] [[irregular satellite|irregular]] [[natural satellite|satellite]] of [[Jupiter]]. The discovery, by a team of astronomers from the [[University of Hawaii at Manoa|University of Hawaii]] led by [[Scott S. Sheppard]] and [[David C. Jewitt]], was announced on March 4, 2003.<ref>[http://www.cbat.eps.harvard.edu/iauc/08000/08087.html IAUC 8087: ''Satellites of Jupiter''] 2003 March 4 (discovery)</ref><ref name="SheppardJewitt2003">{{cite journal |last=Sheppard |first=Scott S. |authorlink= |coauthors=Jewitt, David C. |year=2003 |month= |title=An abundant population of small irregular satellites around Jupiter |journal=[[Nature (journal)|Nature]] |volume=423 |issue=6937 |pages=261–263 |doi=10.1038/nature01584 |url=http://www.ifa.hawaii.edu/~jewitt/papers/JSATS/SJ2003.pdf |accessdate= |quote= |pmid=12748634 |format= }} {{dead link|date=July 2010}}</ref> {{As of|2014}}, it is Jupiter's outermost known moon. |
'''{{nowrap|S/2003 J 2}}''' is a [[retrograde motion|retrograde]] [[irregular satellite|irregular]] [[natural satellite|satellite]] of [[Jupiter]]. The discovery, by a team of astronomers from the [[University of Hawaii at Manoa|University of Hawaii]] led by [[Scott S. Sheppard]] and [[David C. Jewitt]], was announced on March 4, 2003.<ref>[http://www.cbat.eps.harvard.edu/iauc/08000/08087.html IAUC 8087: ''Satellites of Jupiter''] 2003 March 4 (discovery)</ref><ref name="SheppardJewitt2003">{{cite journal |last=Sheppard |first=Scott S. |authorlink= |coauthors=Jewitt, David C. |year=2003 |month= |title=An abundant population of small irregular satellites around Jupiter |journal=[[Nature (journal)|Nature]] |volume=423 |issue=6937 |pages=261–263 |doi=10.1038/nature01584 |url=http://www.ifa.hawaii.edu/~jewitt/papers/JSATS/SJ2003.pdf |accessdate= |quote= |pmid=12748634 |format= }} {{dead link|date=July 2010}}</ref> {{As of|2014}}, it is Jupiter's outermost known moon. |
||
{{nowrap|S/2003 J 2}} is about {{convert|2|km|mi|abbr=on}} in diameter, and orbits Jupiter at an average distance of {{convert|29.54|Gm|AU|lk=on}} in 981.55 days, at an [[inclination]] of 154° to the [[ecliptic]] (152° to Jupiter's equator) and with an [[eccentricity (orbit)|eccentricity]] of 0. |
{{nowrap|S/2003 J 2}} is about {{convert|2|km|mi|abbr=on}} in diameter, and orbits Jupiter at an average distance of {{convert|29.54|Gm|AU|lk=on}} in 981.55 days, at an [[inclination]] of 154° to the [[ecliptic]] (152° to Jupiter's equator) and with an [[eccentricity (orbit)|eccentricity]] of 0.4100.<ref>[http://www.minorplanetcenter.org/mpec/K03/K03E11.html 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)</ref><ref name="JPL_mean">Mean orbital elements from [http://ssd.jpl.nasa.gov/?sat_elem NASA JPL] (August 2006)</ref><ref>Current (2004 July 14, JD= 2453200.5) orbital elements as reported by [http://www.minorplanetcenter.org/iau/NatSats/NaturalSatellites.html IAU-MPC NSES] are a= 0.2024818 AU, e=0.1882469 i=153.52114</ref> |
||
It seems to belong to a [[Jupiter's natural satellites|group]] all of its own, with [[semi-major axis]] ~{{convert|30|Gm|AU|}} and inclination ~160°.<ref name="JPL_mean"/> |
It seems to belong to a [[Jupiter's natural satellites|group]] all of its own, with [[semi-major axis]] ~{{convert|30|Gm|AU|}} and inclination ~160°.<ref name="JPL_mean"/> |
||
Revision as of 02:56, 31 March 2014
| Discovery | |
|---|---|
| Discovered by | University of Hawaiʻi team led by Scott S. Sheppard and David C. Jewitt |
| Discovery date | March 4, 2003 |
| Orbital characteristics | |
| Eccentricity | 0.4074 |
| 981.55 d (2.687 Earth years) | |
| Inclination | 154° (to the ecliptic) 152° (to Jupiter's equator) |
| Satellite of | Jupiter |
S/2003 J 2 is a retrograde irregular satellite of Jupiter. The discovery, by a team of astronomers from the University of Hawaii led by Scott S. Sheppard and David C. Jewitt, was announced on March 4, 2003.[1][2] As of 2014[update], it is Jupiter's outermost known moon.
S/2003 J 2 is about 2 km (1.2 mi) in diameter, and orbits Jupiter at an average distance of 29.54 gigametres (0.1975 AU) in 981.55 days, at an inclination of 154° to the ecliptic (152° to Jupiter's equator) and with an eccentricity of 0.4100.[3][4][5]
It seems to belong to a group all of its own, with semi-major axis ~30 gigametres (0.20 AU) and inclination ~160°.[4]
The limits of Jupiter's gravitational influence are defined by its Hill sphere, whose radius is 52 gigametres (0.35 AU). Retrograde moons with axes up to 67% of Hill radius are believed to be stable. Consequently, it is possible that even more distant moons of Jupiter may be discovered.
References
- ^ IAUC 8087: Satellites of Jupiter 2003 March 4 (discovery)
- ^ Sheppard, Scott S. (2003). "An abundant population of small irregular satellites around Jupiter" (PDF). Nature. 423 (6937): 261–263. doi:10.1038/nature01584. PMID 12748634.
{{cite journal}}: Cite has empty unknown parameter:|month=(help); Unknown parameter|coauthors=ignored (|author=suggested) (help) [dead link] - ^ 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)
- ^ a b Mean orbital elements from NASA JPL (August 2006)
- ^ 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
Listed in increasing approximate distance from Jupiter | |
| Inner moons | |
| Galilean moons | |
| Themisto | |
| Himalia group (9) | |
| Carpo group (2) | |
| Valetudo | |
| Ananke group (26) | |
| Carme group (30) | |
| Pasiphae group (18) | |
| See also | |
