Helene (buwan)

Helene
	Cassini image of Helene against the backdrop of Saturn's clouds (March 3, 2010)
Pagkatuklas
Natuklasan ni	Laques and; Lecacheux
Natuklasan sa	Pic du Midi Observatory
Natuklasan noong	1 Marso, 1980
Designasyon
Ibang designasyon	Helene; Dione B; Saturn XII (12); S/1980 S 6;
Orbital characteristics
Semi-major axis	377396 km
Eccentricity	0.0022
Orbital period	2.736915 d
Inclination	0.199° (to Saturn's equator)
Satellite of	Saturn; Dione (L4 trojan);
Pisikal na katangian
Dimensiyon	43.4 × 38.2 × 26 km
Mean radius	17.6±0.4 km
Albedo	1.67±0.20 (geometric)

Ang Helene ay isang buwan sa Saturn.

Mga sanggunian[baguhin | baguhin ang batayan]

Ang lathalaing ito na tungkol sa Astronomiya ay isang usbong. Makatutulong ka sa Wikipedia sa pagpapalawig nito.

t u b Mga Buwan ng Saturno
Nakatala batay sa distansiya mula sa Saturn. Ang mga temporaryang pangalan ay naka-italiko.
Ring shepherds	S/2009 S 1 · Propeller moonlets · Pan · Daphnis · Atlas · Prometheus · ?(S/2004 S 6 · S/2004 S 4 · S/2004 S 3) · Pandora
Co-orbitals	Epimeteo · Janus
G Ring	Aegaeon
Inner large (with Trojans)	Mimas · Enceladus · Tethys (Telesto • Calypso) · Dione (Helene • Polydeuces)
Alkyonides	Methone · Anthe · Pallene
Outer large	Rhea (singsing) · Titan · Hyperion · Iapetus
Grupong Inuit	Kiviuq · Ijiraq · Paaliaq · Siarnaq · Tarqeq
Grupong Norse	Phoebe · Skathi · S/2007 S 2 · Skoll · S/2004 S 13 · Greip · Hyrrokkin · Mundilfari · Jarnsaxa · S/2006 S 1 · S/2004 S 17 · Narvi · Bergelmir · Aegir · Suttungr · S/2004 S 12 · Bestla · Farbauti · Hati · S/2004 S 7 · Thrymr · S/2007 S 3 · S/2006 S 3 · Surtur · Kari · Fenrir · Ymir · Loge · Fornjot
Grupong Gallic	Albiorix · Bebhionn · Erriapus · Tarvos
Singsing ng Saturn · Cassini-Huygens · Themis · Chiron ·

Pagkatuklas
Cassini image of Helene against the backdrop of Saturn's clouds (March 3, 2010)
Natuklasan ni	Laques and Lecacheux
Natuklasan sa	Pic du Midi Observatory
Natuklasan noong	1 Marso, 1980
Designasyon
Ibang designasyon	Helene Dione B Saturn XII (12) S/1980 S 6
Orbital characteristics
Semi-major axis	7008377396000000000♠377396 km
Eccentricity	6997220000000000000♠0.0022
Orbital period	7005236469456000000♠2.736915 d ^[1]
Inclination	0.199° (to Saturn's equator)
Satellite of	Saturn Dione (L4 trojan)
Pisikal na katangian
Dimensiyon	43.4 × 38.2 × 26 km ^[2]
Mean radius	7004176000000000000♠17.6±0.4 km ^[2]
Albedo	7000167000000000000♠1.67±0.20 (geometric) ^[3]