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Moon of Saturn From Wikipedia, the free encyclopedia
Narvi /ˈnɑːrvi/ or Saturn XXXI is a natural satellite of Saturn. It was discovered by a team of astronomers led by Scott S. Sheppard in 2003, and given the temporary designation S/2003 S 1.
Discovery | |
---|---|
Discovered by | Scott S. Sheppard et al. |
Discovery date | 11 April 2003 |
Designations | |
Pronunciation | /ˈnɑːrvi/ |
Named after | Narfi |
S/2003 S 1 | |
Orbital characteristics[1] | |
19226600 km | |
Eccentricity | 0.2990 |
−995.33 days | |
Inclination | 136.803° |
Satellite of | Saturn |
Group | Norse group |
Physical characteristics[2] | |
3.5+50% −30% km | |
10.21±0.02 h | |
Albedo | 0.06 (assumed) |
23.8 | |
Narvi is about 7 kilometres in diameter, and orbits Saturn at an average distance of 19,371,000 km in 1006.541 days, at an inclination of 136.8° to the ecliptic (109° to Saturn's equator), in a retrograde direction and with an eccentricity of 0.2990, very similar to Bestla's orbit.[3] Narvi's rotation period is 10.21±0.02 hours, and its light curve has three minima like Siarnaq and Ymir. Unlike the other triangular moons, however, one minimum is much higher than the others, and the maximum that is a half-period ahead is much lower.[2]
It was named in January 2005 after Narfi, a giant in Norse mythology. The name was approved by the IAU Working Group on Planetary System Nomenclature on 21 January 2005.
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