Link to the start of the homepage Link to the planet Saturn Link to the satellite Mimas of the planet Saturn Link to the satellite Phoebe of the planet Saturn Link to the satellite Epimetheus of the planet Saturn Link to the satellite Daphnis of the planet Saturn Switch over to the german language Control the graphics effects Link to the imprint page Write an E-Mail to the author Minimize the title bar
sol mercury venus earth mars asteroid jupiter saturn uranus neptune pluto comet
Janus
Orbit data - Object data - Mythology - Links Go to the bottom of the page
Placeholder
Placeholder
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.

Hide this area Links
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
© 2017 by Bernd Onasch - Imprint Go to the top of the page
Placeholder
Placeholder