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Fornjot (moon)

Moon of saturn

Summary

Moon of saturn

Field	Value
name	Fornjot
image	Fornjot-cassini.png
caption	Fornjot imaged by the Cassini spacecraft in March 2014
pronounced

named_after	Fornjót
mpc_name	Saturn XLII
alt_names	S/2004 S 8
discovered	December 2004
discoverer	Scott S. Sheppard
David C. Jewitt
Jan T. Kleyna
Brian G. Marsden
orbit_ref
semimajor
inclination	170.4°
eccentricity	0.206
period	−1490.9 days
satellite_of	Saturn
group	Norse group
physical_ref
mean_diameter
rotation	(6.9 or 9.5) ± 0.4? h
albedo	0.06 (assumed)
spectral_type	r – i = 0.20 ± 0.09
magnitude	24.6
abs_magnitude	14.9

David C. Jewitt Jan T. Kleyna Brian G. Marsden

Fornjot or Saturn XLII is the outermost named moon of Saturn. Its discovery was announced by Scott S. Sheppard, David C. Jewitt, Jan Kleyna, and Brian G. Marsden on 4 May 2005 from observations taken between 12 December 2004, and 11 March 2005. It had the largest semi-major axis among all the known moons of Saturn until the recovery of Saturn LVIII in 2019.

It is about 6 kilometres in diameter, and it orbits Saturn at an average distance of 23,609 Mm in 1491 d at an inclination of 168° to the ecliptic (160° to Saturn's equator) in a retrograde direction and with an eccentricity of 0.186. It is ambiguous whether the rotation period is 6.9 or hours, but it is known to show very little variation in brightness and is probably very round in shape. It was also the faintest moon that was measured by Cassini–Huygens.{{cite conference

Fornjot was named after Fornjót, a giant in Norse mythology.

References

[https://sites.google.com/carnegiescience.edu/sheppard/moons/saturnmoons S.S. Sheppard (2019), Moons of Saturn, ''Carnegie Science'', on line]
(2022-05-17). "Colors of Irregular Satellites of Saturn with the Dark Energy Camera". The Astronomical Journal.
(2018). "Enceladus and the Icy Moons of Saturn". [[The University of Arizona Press]].

Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

norse-group moons-of-saturn irregular-satellites discoveries-by-scott-s.-sheppard astronomical-objects-discovered-in-2005 moons-with-a-retrograde-orbit

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