Properties
Magnitude
-12.6
Angular Size
1864 arcmin
Type: Moon
Distance: 0.003 AU
Orbital Period: 27.3 days
Diameter: 3,475 km
Atmosphere: Thin exosphere
Features: Craters, maria
Earth's only natural satellite; phases visible.
Position & Identifiers
Physical Properties
Diameter
3,475 km
(0.27× Earth)
Mass
7.35e22 kg
Albedo
0.12
(12% reflected)
Temperature
-173°C to 107°C
Rotation
27.3 days
Atmosphere
Thin exosphere
Surface
Craters, maria
Orbital Properties
Semi-major Axis
0.0026 AU
(384,467 km)
Eccentricity
0.0549
Inclination
5.10°
Orbital Period
27.3 days
Observing Tips
Best Months
Visible all year
Visibility
Naked eye
Where to Look
Near Earth
Notes
Earth's only natural satellite; phases visible.
Parent Body
How easy to spot?
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| Telescope | Bortle 3 | Bortle 4 | Bortle 5 |
|---|---|---|---|
| 80 mm refractor 80mm refr. | Easy | Easy | Easy |
| 150 mm Newton 150mm Newt. | Easy | Easy | Easy |
| Celestron C8 (203 mm SCT) C8 203mm | Easy | Easy | Easy |
Easy
Medium
Hard
Very hard
Impossible
Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs
Easy
on Seestar S50
Visibility
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Community Photos (2)
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