Ganymede
Ganymede
Moon
Gemini
Visible
Level 3
Medium telescope (6-8") - Timing dependent
Properties
Magnitude
4.6
Angular Size
1.7 arcmin
Distance
1070373 ly
Type: Moon
Distance: 0.007 AU
Orbital Period: 7.2 days
Diameter: 2,631 km
Atmosphere: Thin oxygen
Features: Craters, grooves
Largest moon in solar system.
Position & Identifiers
RA
07h 04m 23.0s
Dec
+22° 57' 55.9"
Constellation
Gemini
Catalog
Ganymede
Visibility
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Survey Image
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Community Photos (1)
Credit: Kevin M. Gill. License: CC BY 2.0. (Wikimedia Commons)
Skybred Feb 28, 2026