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S/2004 S 7

Moon of Saturn

Summary

Moon of Saturn

Field	Value
name	S/2004 S 7
discovery_ref
discoverer	Scott S. Sheppard et al.
discovery_site	Mauna Kea Obs.
discovered	12 December 2004
orbit_ref
epoch	9 August 2022 (JD 2459800.5)
observation_arc	15.61 yr (5,703 days)
semimajor	0.1441103 AU
eccentricity	0.5743875
period	–3.24 yr (–1181.80 d)
mean_anomaly	94.00208°
mean_motion	/ day
inclination	165.04992° (to ecliptic)
asc_node	14.74072°
arg_peri	127.76280°
satellite_of	Saturn
group	Norse group
mean_diameter	≈
albedo	0.04 (assumed)
magnitude	24.5
abs_magnitude	15.6

S/2004 S 7 is a natural satellite 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 8 March 2005.

S/2004 S 7 is about 6 kilometres in diameter, and orbits Saturn at an average distance of 21,559,000 kilometres in about 1,182 days, at an inclination of 165.0° to the ecliptic, in a retrograde direction and with an eccentricity of 0.574.

This moon was considered lost until its recovery was announced on 12 October 2022.

References

|access-date = 2008-01-20 |archive-url = https://web.archive.org/web/20110810063231/http://ssd.jpl.nasa.gov/?sat_elem#saturn |archive-date = 2011-08-10 |url-status = live

Institute for Astronomy Saturn Satellite Data
Jewitt's New Satellites of Saturn page
Twelve New Satellites of Saturn, 3 May 2005 (discovery and ephemeris)

References

(2018). "Enceladus and the Icy Moons of Saturn". University of Arizona Press.
(28 September 2012). "Irregular Satellites of the Outer Planets: Orbital Uncertainties and Astrometric Recoveries in 2009–2011". The Astronomical Journal.
Discovery Circumstances [http://ssd.jpl.nasa.gov/?sat_discovery from JPL]
[https://sites.google.com/carnegiescience.edu/sheppard/moons/saturnmoons S.S. Sheppard (2019), Moons of Saturn, ''Carnegie Science'', on line]

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 recovered-astronomical-objects

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