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Methane Cloud Neptunian

Object Type: Methane Cloud Neptunian
Parent Star: Sol (G2 V)
Discovery Status: Imaged
Orbit of Neptune Current Planet
Habitability Zone Habitability Zone
Mass : 0.053 Jupiters
Mean Distance: 30.108 AU
Orbital Period: 60189 Days
Eccentricity: 0.0097
Argument of Perihelion (omega):
44.97135 °
System Age: 4600 Myr
Planet Appearance:
Blue with methane clouds and hazes
Estimated Mean Temp: 46 Kelvin
Mean Angular Star Size: 0.017°
Gravitational Influence
(Hill Sphere): 		0.772 AU / 115500000 km
Max Stable Prograde Moon Orbit: 0.277 AU / 41580000 km
Max Moon Mass: > 10 Earths 1
Tidally locked if older than: > 20 Gyr 2
Notes:
     1 inaccurate for planets with mass < 0.3 Jupiters
     2 orbit may be too eccentric for 1:1 tidal lock
Year Discovered: 1846
Detection Method: Inferred by Orbital Motions of Uranus
Detected by Optical Imagery
Discovered By: Predicted by Urbain Jean Joseph Le Verrier
Detected by Johann Gottfried Galle

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On Triton
The frigid surface of Triton, one of only two moons in the solar system to have a permanent atmosphere. In the background, Neptune and its rings hang in the dark day time sky.

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Southern Hemisphere
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