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Contents

   



(Top)
 


1 Orbit  





2 Origin  





3 References  





4 External links  














Tarvos (moon)






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Tarvos
Animation of discovery images taken by the CFHT in September 2000
Discovery[1]
Discovered byB. J. Gladman et al.[2]
Discovery dateSeptember 23, 2000
Designations

Designation

Saturn XXI
Pronunciation/ˈtɑːrvɒs/

Named after

Tarvos Trigaranus

Alternative names

S/2000 S 4
AdjectivesTarvian[3]
Orbital characteristics[4]
Epoch 2000 January 1.5

Semi-major axis

18.215 Gm
Eccentricity0.528

Orbital period (sidereal)

926.4 d
(2.54 yr)
Inclination38.6°
Satellite ofSaturn
GroupGallic group
Physical characteristics

Mean diameter

15+50%
−30%
 km
[5]
Albedo0.06 assumed[5]

Spectral type

light red
B−V=0.77, R−V=0.57[6]

Apparent magnitude

22.1[7]

Absolute magnitude (H)

12.9[7]

Tarvos /ˈtɑːrvɒs/, or Saturn XXI, is a prograde irregular satelliteofSaturn. It was discovered by John J. Kavelaars et al. on September 23, 2000, and given the temporary designation S/2000 S 4. The name, given in August 2003, is after Tarvos, a deity depicted as a bull god carrying three cranes alongside its back from Gaulish mythology.[8]

Orbit

[edit]
Discovery images of Tarvos (circled) taken by the CFHT

Tarvos orbits Saturn at an average distance of 18 million km in 926 days and is about 15 km in diameter (assuming an albedo of 0.06).[5] It has a high orbital eccentricity of 0.53.[4]

It is a member of the Gallic group of irregular satellites.

Origin

[edit]

With a similar orbit and displaying a similar light-red colour, Tarvos is thought to have its origin in the break-up of a common progenitor[6][9] or to be a fragment of Albiorix.[10]

References

[edit]
  1. ^ "Planetary Satellite Discovery Circumstances". ssd.jpl.nasa.gov.
  • ^ "MPEC 2000-Y14 : S/2000 S 3, S/2000 S 4, S/2000 S 5, S/2000 S 6, S/2000 S 10". minorplanetcenter.net. December 19, 2000.
  • ^ Per the diminutive TarvillusinDavis, Daniel (2001). The Development of Celtic Linguistics, 1850-1900. p. 162.
  • ^ a b SAT452 from Jacobson, R. A. (2007-06-28). "Planetary Satellite Mean Orbital Parameters". JPL/NASA. Retrieved 2008-01-19.
  • ^ a b c Denk, T.; Mottola, S. (2019). Cassini Observations of Saturn's Irregular Moons (PDF). 50th Lunar and Planetary Science Conference. Lunar and Planetary Institute.
  • ^ a b Grav, Tommy; Holman, Matthew J.; Gladman, Brett; Aksnes, Kaare (November 2003). "Photometric Survey of the Irregular Satellites". Icarus. 166 (1): 33–45. arXiv:astro-ph/0301016. doi:10.1016/j.icarus.2003.07.005 – via arXiv.
  • ^ a b Denk, Tilmann; Mottola, Stefano; Tosi, Frederico; Bottke, William F.; Hamilton, Douglas P. (2018). "The Irregular Satellites of Saturn" (PDF). In Schenk, P.M.; Clark, R.N.; Howett, C.J.A.; Verbiscer, A.J.; Waite, J.H. (eds.). Enceladus and the Icy Moons of Saturn. Space Science Series. Vol. 322. Tucson, AZ: The University of Arizona Press. pp. 409–434. Bibcode:2018eims.book..409D. doi:10.2458/azu_uapress_9780816537075-ch020. ISBN 9780816537075.
  • ^ "IAUC 8177: Sats OF (22); Sats OF JUPITER, SATURN, URANUS". www.cbat.eps.harvard.edu. August 8, 2003.
  • ^ Gladman, Brett; Kavelaars, J. J.; Holman, Matthew; Nicholson, Philip D.; Burns, Joseph A.; Hergenrother, Carl W.; Petit, Jean-Marc; Marsden, Brian G.; Jacobson, Robert; Gray, William; Grav, Tommy (2001-07-12). "Discovery of 12 satellites of Saturn exhibiting orbital clustering". Nature. 412 (6843): 163–166. doi:10.1038/35084032. ISSN 1476-4687.
  • ^ Grav, T.; Bauer, J. (2007-03-08) [2006-11-18]. "A deeper look at the colors of the Saturnian irregular satellites". Icarus. 191 (1): 267–285. doi:10.1016/j.icarus.2007.04.020 – via arXiv.
  • [edit]
    Retrieved from "https://en.wikipedia.org/w/index.php?title=Tarvos_(moon)&oldid=1211898385"

    Categories: 
    Gallic group
    Moons of Saturn
    Irregular satellites
    Astronomical objects discovered in 2000
    Moons with a prograde orbit
    Hidden categories: 
    Articles with short description
    Short description matches Wikidata
     



    This page was last edited on 5 March 2024, at 02:30 (UTC).

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