Linus (moon)
km[3] (1040-1086)
1099 ± 11 km[4] (1088-1110) | |||||||||||||
| Eccentricity | <0.015 [3] <0.005 [5] | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3.596 ± 0.040 d[3] (3.556-3.636) 3.590 ± 0.001 d[5] (3.589-3.591) | |||||||||||||
Average orbital speed | 21.5 m/s | ||||||||||||
| Inclination | ~0° [3][5] (undetectable with respect to Kalliope equator) | ||||||||||||
| Satellite of | 22 Kalliope | ||||||||||||
| Physical characteristics | |||||||||||||
| Dimensions | 28 ± 2 km[4] | ||||||||||||
| Mass | ~6×1016 kg (estimate)[3] ~4×1016 kg (estimate) | ||||||||||||
| unknown, zero expected | |||||||||||||
| |||||||||||||
| 9.7 [7] | |||||||||||||
Linus, formal designation (22) Kalliope I Linus, is an
With an estimated 28 ± 2 km (17 ± 1 mi) diameter,main belt are the smaller components of the double asteroids 617 Patroclus and 90 Antiope.
It has been estimated that Linus' orbit precesses at quite a rapid rate, making one cycle in several years. This is attributed primarily to the non-spherical shape of Kalliope.[3][7] Linus's brightness has varied appreciably between observations, which may indicate that its shape is elongated.[7]
Linus may have formed out of impact ejecta from a collision with Kalliope, or a fragment captured after disruption of a parent asteroid (a proto-Kalliope).
References
- ^ a b "IAUC 7703: S/2001 (22) 1; 2001ed". IAU Central Bureau for Astronomical Telegrams. September 3, 2001. Retrieved 2012-07-18.
- ^ "linia" = 'of Linus' in Banier (1793) The mythology and fables of the ancients, explain'd from history, v. 1; also in Charles Frederick Partington (1838) The British Cyclopædia of Biography
- ^ PMID 12817147.
- ^ .
- ^ a b c synthesis of several observations Archived 2006-08-29 at the Wayback Machine including recent ones with the VLT 8m telescope.
- ^ Based on a rough tidal locking timescale of several tens of My.
- ^ .
- ^ "IAUC 8177: Sats of (22); Sats of Jupiter, Saturn, Uranus". IAU Central Bureau for Astronomical Telegrams. August 8, 2003. Retrieved 2012-07-18.
- ^ Margot, Jean-Luc (2004). "Adaptive Optics Observations of Kalliope-Linus". UCLA. Retrieved 2013-08-30.
External links
- IAUC 7703: S/2001 (22) 1, announcing Linus' discovery (2001 September 3)
- IAUC 8177: Sats of (22); Sats of Jupiter, Saturn, Uranus, announcing Linus' naming (2003 August 8)
- Link to the Linus discovery paper , "A Low-Density M-type Asteroid in the Main Belt"
- Kalliope and Linus very well resolved with the 8m VLT
- orbit diagram for Linus
- Information on Kalliope, Linus' orbit and several images
- A different VLT image of Kalliope and Linus
- another image of Kalliope and Linus