FANDOM


Rhea
Adjective(s) Lunarian
Orbital properties
Aphelion/apoapsis 405400 km

(404000–406700 km)

Perihelion/periapsis 362600 km

(356400–370400 km)

Semi-major axis 384399 km (0.00257 AU)
Orbital eccentricity 0.0549
Orbital period 27.321582 d

(27 d 7 h 43.1 min)

Average orbital speed 1.022 km/s
Physical properties
Radius 1737.10 km
(0.273 Earths)
Mass 7.3477×1022 kg
(0.012300 Earths)
Mean density 3.3464 g/cm3

0.606 × Saturn

Escape velocity 4.627 m/s
Rotation period 27.321582 d (synchronous)
Average surface temperature min mean max

100 K 220 K 390 K
70 K 130 K 230 K

Apparent magnitude −2.5 to −12.9

−12.74 (mean full moon)

Moons Several artifical satellites

Rhea, also known as Saturn V, is a natural satellite of the outer planet, Saturn. Rhea was discovered on December 23, 1672, by the astronomer G.D. Cassini. It is the ninth-largest moon.

Surface FeaturesEdit

The surface of Rhea is relatively smooth, with a large amount of medium-sized craters located throughout the surface.

Rings Edit

The Saturnian moon Rhea may have a tenuous ring system consisting of three narrow, relatively dense bands within a particulate disk. This would be the first discovery of rings around a moon. The potential discovery was announced in the journal Science on March 6, 2008.

Saturnian Moons
S/2009 S 1 - (nameless moonlets) - Pan - Daphnis - Atlas - Prometheus - Pandora - Epimetheus - Janus - Aegaeon - Mimas - Methone - Anthe - Pallene - Enceladus - Tethys - Telesto - Calypso - Dione - Helene - Polydeuces - Rhea - Titan - Hyperion - Iapetus - Kiviuq - Ijiraq - Phoebe - Paaliaq - Skathi - Albiorix - S/2007 S 2 - Bebhionn - Erriapus - Skoll - Siarnaq - Tarqeq - - S/2004 S 13 - Greip - Hyrrokin - Jarnsaxa - Tarvos - Mundilfari - S/2006 S 1 - S/2004 S 17 - Bergelmir - Narvi -Suttungr - Hati - S/2004 S 12 - Farbauti -Thrymr - Aegir - S/2007 S 3 - Bestla - S/2004 S 7 - S/2006 S 3 - Fenrir - Surtur - Kari - Ymir - Loge - Fornjot