Telesto (moon) explained
| Telesto |
| Discoverer: | |
| Discovered: | April 8, 1980 |
| Adjectives: | Telestoan or |
| Named After: | Τελεστώ Telestō |
| Mpc Name: | Saturn XIII |
| Alt Names: | Tethys B
S/1980 S 13 |
| Inclination: | 1.19° (to Saturn's equator) |
| Satellite Of: | Saturn |
| Group: | L4 Tethys trojan |
| Dimensions: | km
(± km) |
| Mass: | (assumed; unmeasured) |
| Density: | (assumed; unmeasured) |
| Surface Grav: | ≈  |
| Escape Velocity: | ≈  km/s at longest axis
to ≈  km/s at poles |
| Axial Tilt: | zero |
| Magnitude: | 18.7 |
Telesto is a moon of Saturn. It was discovered by Smith, Reitsema, Larson and Fountain in 1980 from ground-based observations, and was provisionally designated . In the following months, several other apparitions were observed:,, and .
In 1983 it was officially named after Telesto of Greek mythology. It is also designated as or Tethys B.
Telesto is co-orbital with Tethys, residing in Tethys' leading Lagrangian point . This relationship was first identified by Seidelmann Harrington et al. 1981}}|Seidelmann et al. in 1981. Another moon, Calypso, resides in the other (trailing) Lagrangian point of Tethys, 60 degrees in the other direction from Tethys. The Saturnian system has two additional trojan moons.
Exploration
The Cassini probe performed a distant flyby of Telesto on October 11, 2005. The resulting images show that its surface is surprisingly smooth, devoid of small impact craters.
References
Sources
- Web site: Hamilton . Calvin J. . Saturn's Trojan Moon Telesto . SolarViews.com . SolarViews . 2011-12-23 .
- Marsden . Brian G. . Satellites of Saturn . April 10, 1980 . discovery . IAU Circular . 3466 . 2011-12-23 . .
- Marsden . Brian G. . Satellites of Saturn . June 6, 1980 . IAU Circular . 3484 . 2011-12-23 . .
- Marsden . Brian G. . Satellites of Saturn . April 16, 1981 . IAU Circular . 3593 . 2011-12-23 . .
- Marsden . Brian G. . Satellites of Saturn . May 18, 1981 . IAU Circular . 3605 . 2011-12-23 . .
- Marsden . Brian G. . Satellites of Jupiter and Saturn . September 30, 1983 . IAU Circular . 3872 . 2011-12-23 . .
- 10.1016/0019-1035(81)90172-X. Seidelmann . P. K.. Harrington . R. S.. Pascu . D.. Baum . W. A.. Currie . D. G.. Westphal . J. A.. Danielson . G. E.. 1981. Saturn satellite observations and orbits from the 1980 ring plane crossing. Icarus. 47. 2. 282. 1981Icar...47..282S. .
- 10.1016/j.icarus.2010.01.025. Thomas. P. C.. July 2010. Sizes, shapes, and derived properties of the saturnian satellites after the Cassini nominal mission. Icarus. 208. 1. 395–401. 2010Icar..208..395T. 2015-09-04. 2011-09-27. https://web.archive.org/web/20110927185355/http://www.ciclops.org/media/sp/2011/6794_16344_0.pdf. dead.
- . P. C. . Thomas . P. . Helfenstein . The small inner satellites of Saturn: Shapes, structures and some implications . Icarus . July 2020 . 344 . 113355 . 20 . 10.1016/j.icarus.2019.06.016 . 2020Icar..34413355T. 197474587 .
External links
