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Janus
Orbit data - Object data - Mythology - Links Go to the bottom of the page
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Photo of the satellite Janus of the planet Saturn
Janus   Saturn X (S/1980 S1)

Hide this area Orbit data
Mean distance from the planet Saturn 151.472 km
Orbital period around the planet Saturn (sideric) 0,695 d
Mean orbital velocity 15,87 km/s
Orbital inclination 0,14 °
Eccentricity of the orbit around the planet Saturn 0,007
Hide this area Object data
Discovered by Audouin Charles Dollfus 1966
Mass 1,92 × 1018 kg
Equatorial radius 97 × 95 × 77 km
Mean density 0,65 g/cm³
Escape velocity 0,0523 km/s
Rotational period (synchronous) 0,695 d
Albedo 0,9
Apparent magnitude + 14,5 mvis
Hide this area Mythology

Janus is the Roman god of gates and doors, beginnings and endings, and hence represented with a double-faced head, each looking in opposite directions. He also sheltered Saturn when he was fleeing from Jupiter.

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File icon NASA (Voyager 2) - Janus
© Calvin J. Hamilton ("Views of the Solar System")
File icon NASA (Voyager 2) - Janus - Colorized Image
© Calvin J. Hamilton ("Views of the Solar System")
File icon NASA (Voyager 1) - Janus with Saturn's Rings in the Background
© Calvin J. Hamilton ("Views of the Solar System")
File icon Welcome to the Planets
Online version of the "Planetary Data System Educational CD-ROM"
File icon A Multimedia Tour of the Solar System - The Nine Planets
© William A. Arnett
© 2021 by Bernd Onasch - Imprint Go to the top of the page
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