Rhea (muin)

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Rhea
PIA07763 Rhea full globe5.jpg
Cassini mosaic o Rhea
Discovery
Discovered bi G. D. Cassini[1]
Discovery date December 23, 1672[1]
Designations
Saturn V
Adjectives Rhean
Orbital chairactereestics[2]
527108 km
Eccentricity 0.0012583
4.518212 d
8.48 km/s[lower-alpha 1]
Inclination 0.345° (tae Saturn's equator)
Satellite o Saturn
Pheesical chairacteristics
Dimensions 1532.4 × 1525.6 × 1524.4 km [3]
Mean radius
763.8±1.0 km[3]
7337000 km2
Mass (2.306518±0.000353)×1021 kg[4] (~3.9×104 Yirds)
Mean density
1.236±0.005 g/cm³[3]
0.265 m/s²
0.635 km/s
4.518212 d
(synchronous)
zero
Albedo 0.949±0.003 (geometric) [5]
Surface temp. min mean max
Kelvin 53 K   99 K
10 [6]

Rhea ({Auncient Greek: Ῥέᾱ) is the seicont-lairgest muin o Saturn an the nint-lairgest muin in the Solar Seestem.

Notes[eedit | eedit soorce]

  1. Calculatit on the basis o ither parameters.

References[eedit | eedit soorce]

  1. 1.0 1.1 Rhea: Saturn's dirty snowball moon
  2. Natural Satellites Ephemeris Service Minor Planet Center
  3. 3.0 3.1 3.2 Roatsch, T.; Jaumann, R.; Stephan, K.; Thomas, P. C. (2009). "Cartographic Mapping of the Icy Satellites Using ISS and VIMS Data". Saturn from Cassini-Huygens. pp. 763–781. doi:10.1007/978-1-4020-9217-6_24. ISBN 978-1-4020-9216-9. 
  4. Jacobson, R. A.; Antreasian, P. G.; Bordi, J. J.; Criddle, K. E.; Ionasescu, R.; Jones, J. B.; Mackenzie, R. A.; Meek, M. C.; Parcher, D.; Pelletier, F. J.; Owen, Jr., W. M.; Roth, D. C.; Roundhill, I. M.; Stauch, J. R. (December 2006). "The Gravity Field of the Saturnian System from Satellite Observations and Spacecraft Tracking Data". The Astronomical Journal. 132 (6): 2520–2526. Bibcode:2006AJ....132.2520J. doi:10.1086/508812. 
  5. Verbiscer, A.; French, R.; Showalter, M.; Helfenstein, P. (9 Februar 2007). "Enceladus: Cosmic Graffiti Artist Caught in the Act". Science. 315 (5813): 815. Bibcode:2007Sci...315..815V. doi:10.1126/science.1134681. PMID 17289992. Retrieved 20 December 2011.  (supporting online material, table S1)
  6. Observatorio ARVAL (Aprile 15, 2007). "Classic Satellites of the Solar System". Observatorio ARVAL. Retrieved 2011-12-17.