Killene (from the Greek Greek Κυλλήνη ), also Jupiter XLVIII is the natural satellite of Jupiter .
| Killene | |
|---|---|
| Jupiter's satellite | |
| Discovery story | |
| Discoverer | |
| opening date | February 8, 2003 |
| Orbital characteristics | |
| Eccentricity | 0.319 |
| Circulation period | 737.8 days |
| Orbital inclination | 140 ° (to the ecliptic ) 140 ° (to the equator of Jupiter) |
| physical characteristics | |
| Diameter | ~ 2 km |
| Density | 2.6 g / cm³ |
| Albedo | 0.04 |
| Atmosphere | absent |
Content
- 1 Opening
- 2 Orbit
- 3 Physical characteristics
- 4 notes
Opening
It was discovered by a group of astronomers from the University of Hawaii under the direction of Scott Sheppard on February 8, 2003 and received the provisional designation S / 2003 J 13 [1] [2] . March 30, 2003 was given the official name Killen, the name of one of the nymphs [3] .
Orbit
The revolution around Jupiter makes an average of 24,349,000 kilometers in 737.8 days. A retrograde orbit with an eccentricity of 0.319 has an inclination of 149.3 ° to the ecliptic (140 ° to the equator). Included in the Pacife group .
Physical Characteristics
The diameter of Killen is about 2 km. Density is estimated at 2.6 g / cm³. Presumably composed of silicate rocks . The surface is very dark, the albedo is 0.04. The magnitude is 23.2 m .
Notes
- ↑ IAUC 8116: Satellites of Jupiter and Saturn . Archived on May 5, 2006. April 11, 2003 (Opening)
- ↑ MPEC 2003-G09: S / 2003 J 13 April 2, 2003 (Discovery and ephemeris)
- ↑ IAUC 8502: Satellites of Jupiter (inaccessible link - history ) . March 30, 2005 (Assigning a name to the satellite)