Bebhionn (moon)

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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 ,
Jan Kleyna , Brian G. Marsden

Date of discovery December 12, 2004

Bebhionn (also Saturn XXXVII) is one of the smaller outer moons of the planet Saturn .

discovery

Bebhionn (the brightest object) on May 6, 2010

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

Individual evidence

  1. 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