Narvi (moon)

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Narvi
Provisional or systematic name S / 2003 S 1
Central body Saturn
Properties of the orbit
Major semi-axis 19,007,000 km
Periapsis 10,815,000 km
Apoapsis 27,199,000 km
eccentricity 0.431
Orbit inclination 145.8 °
Orbital time 1003.9 d
Mean orbital velocity 1.38 km / s
Physical Properties
Albedo 0.06
Apparent brightness 23.8 mag
Medium diameter ≈ 7 km
Dimensions ≈ 3.4 × 10 14 kg
Sidereal rotation ≈ 10 h 13 min
Acceleration of gravity on the surface ≈ 0.002 m / s 2
Escape speed ≈ 3.6 m / s
discovery
Explorer

Scott S. Sheppard , David C. Jewitt ,
Jan Kleyna

Date of discovery April 8, 2003

Narvi (also Saturn XXXI) is one of the smaller outer moons of the planet Saturn .

discovery

The discovery of Narvi by Scott S. Sheppard , David C. Jewitt and Jan Kleyna on recordings from February 5 to April 3, 2003, was announced on April 8, 2003. Narvi was initially given the provisional name S / 2003 S 1. In January 2005, the moon was named after the giant Narfi from Nordic mythology .

Orbit data

Narvi orbits Saturn on an eccentric orbit at a mean distance of 18,719,000 km in 956 days and 6 hours. The orbit has an eccentricity of 0.3522 ° and is strongly inclined at 134.592 ° against the ecliptic , which represents the Laplace plane at this distance from Saturn .

Structure and physical data

Narvi has a diameter of 6.6 km. With an albedo of 0.06, its surface is very dark. Only 6% of the incident sunlight is reflected.

Web links

Individual evidence

  1. 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 / 2006 S 1
Semi- major axis  (km) Narvi 19.007.000
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