Bebhionn (moon)
Bebhionn | |
---|---|
Provisional or systematic name | S / 2004 S 11 |
Central body | Saturn |
Properties of the orbit | |
Major semi-axis | 17,119,000 km |
Periapsis | 9,090,000 km |
Apoapsis | 25,148,000 km |
eccentricity | 0.469 |
Orbit inclination | 35.01 ° |
Orbital time | 834.8 d |
Mean orbital velocity | 1.41 km / s |
Physical Properties | |
Apparent brightness | 24.1 mag |
Medium diameter | ≈ 6 km |
Dimensions | ≈? kg |
Sidereal rotation | ≈ 16 h 20 min |
Acceleration of gravity on the surface | ≈ 0 m / s 2 |
Escape speed | ≈ 0 m / s |
discovery | |
Explorer |
David C. Jewitt , Scott S. Sheppard , |
Date of discovery | December 12, 2004 |
Bebhionn (also Saturn XXXVII) is one of the smaller outer moons of the planet Saturn .
discovery
The discovery of Bebhionn by David C. Jewitt , Scott S. Sheppard , Jan Kleyna and Brian G. Marsden on images from December 12, 2004 of the 8.2-meter Subaru telescope on Mauna Kea to March 9, 2005 was on May 3 Announced in 2005. Bebhionn was initially given the provisional designation S / 2004 S 11. In April 2007 the moon was named after the Irish goddess Bé Find (also Bébhionn).
Orbit data
Bebhionn orbits Saturn on an eccentric orbit in around 835 days. The eccentricity of the orbit is 0.469, with the orbit inclined at 35.01 ° to the ecliptic . Bebhionn belongs to the Gallic group of Saturn's moons.
Structure and physical data
Bebhionn has a diameter of about 6 km and rotates around its own axis in 16.3 hours.
Web links
- MPEC 2005-J13: Twelve New Satellites of Saturn May 3, 2005 (Discovery and Ephemeris)
- MPEC 2006-C55: S / 2004 S 10, S / 2004 S 11, S / 2004 S 15, S / 2004 S 18 February 10, 2006 (rediscovery)
- IAUC 8523: New Satellites of Saturn May 4, 2005 (discovery)
- IAUC 8826: Satellites of Jupiter and Saturn April 5, 2007 (numbering and naming)
- Facts about Bebhionn
Individual evidence
- ↑ a b T. Denk, S. Mottola (2019): Studies of irregular satellites: I. Lightcurves and rotation periods of 25 Saturnian moons from Cassini observations. Icarus 322 , 80-102. DOI: 10.1016 / j.icarus.2018.12.040 .
further inside | Saturn moons | further outside |
S / 2004 S 29 |
Semi- major axis (km) Bebhionn 17,119,000 |
Erriapus |