Planetary data:
Name: Cybele
Orbital period in years: 0.37
Orbital period in days: 135.93
Orbital period in hours: 3262.24
Orbital radius (mean) km: 71.38E+6
Planetary diameter, km: 15080
Surface g, m/s/s: 11.62
Earth gravities: 1.18
Planetary mass, kg: 9.90E+24
Planetary mass, Earths: 1.66
Planetary volume, m^3: 1.80E+21
Planetary volume, Earths: 1.66
Approximate planetary temperature, K: 270.92
Density, g/cm^3: 5.51
Axial tilt, degrees: 0.00
Rotational period, hrs: 30.65

Comments: Cybele is the only life bearing planet around Hades, but its temperate climate make it a popular planet in the Athene binary system. More information here.

Atmospheric gas speed analysis
Numbers reflect escape velocity/r.m.s. speeds of molecules

Hydrogen (H2): 3.92
Helium (He): 7.84
Oxygen (O2): 62.69
Nitrogen (N2): 54.85
Carbon dioxide (CO2): 86.20
Argon (Ar): 78.36
Krypton (Kr): 164.56
Neon (Ne): 39.57
Water Vapour (H20): 31.35
Methane (CH4): 31.35
Ozone (O3): 94.04
Sulphur Dioxide (SO2): 125.38
Benzene (C6H6): 35.26
Ethane (C2H6): 58.77
Hydrogen Sulphide (H2S): 66.61
Ammonia (NH3): 33.30

Habitable zone description: 

Planetary conditions: cool, normal ecology
Mean temperature, K: 270.92
life: indigenous
Atmosphere: breathable
Temperature at perihelion, K: 272
Temperature at aphelion, K: 270


Atmospheric composition:
Pressure in millibars: 

Hydrogen (H2): 0.00
Helium (He): 0.00
Oxygen (O2): 219.84
Nitrogen (N2): 823.73
Carbon dioxide (CO2): 0.00
Ammonia (NH3): 0.00
Methane (CH4): 0.00
Sulphur dioxide (SO2): 0.00
Hydrogen sulphide (H2S): 0.00
Total atmospheric pressure, bar: 1.04


Surface hydrosphere:
Potential surface liquids: 

Water (H2O): As complete hydrosphere
Ammonia (NH3): Not as liquid, but found in solution
Sulphur dioxide (SO2): Not as liquid, but found in solution
Carbon dioxide (CO2): No
Oxygen (O2): No
Nitrogen (N2): No
Neon (Ne): No
Deuterium (D): No
Hydrogen (H): No
Helium (He): No