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Planetary
data: Name: Hel Orbital
period in years: 12.74 Orbital
period in days: 4653.84 Orbital
period in hours: 111692.17 Orbital
radius (mean) km: 839.37E+6 Planetary
diameter, km: 92605 Surface
g, m/s/s: 18.71 Earth
gravities: 1.91 Planetary
mass, kg: 600.97E+24 Planetary
mass, Earths: 100.56 Planetary
volume, m^3: 415.81E+21 Planetary
volume, Earths: 383.94 Approximate
planetary temperature, K: 140 Density,
g/cm^3: 1.45 Axial
tilt, degrees: 14.52 Rotational
period, hrs: 10.47 Atmospheric
composition: Pressure
in millibars: Hydrogen
(H2): +2000.00 Helium
(He): +2000.00 Oxygen
(O2): trace, liberated from water ice breakdown Nitrogen
(N2): trace Carbon
dioxide (CO2): 0.00 Ammonia
(NH3): trace Methane
(CH4): 0.00 Sulphur
dioxide (SO2): 0.00 Hydrogen
sulphide (H2S): 0.00 Total
atmospheric pressure, bar: +4.00 Atmospheric
gas speed analysis Numbers
reflect escape velocity/r.m.s. speeds of molecules Hydrogen
(H2): 23.82 Helium
(He): 47.65 Oxygen
(O2): 381.17 Nitrogen
(N2): 333.53 Carbon
dioxide (CO2): 524.11 Argon
(Ar): 476.47 Krypton
(Kr): 1000.58 Neon
(Ne): 240.62 Water
Vapour (H20): 190.59 Methane
(CH4): 190.59 Ozone
(O3): 571.76 Sulphur
Dioxide (SO2): 762.35 Benzene
(C6H6): 214.41 Ethane
(C2H6): 357.35 Hydrogen
Sulphide (H2S): 405.00 Ammonia
(NH3): 202.50 Surface
hydrosphere: Potential
surface liquids: Water
(H2O): No Ammonia
(NH3): No Sulphur
dioxide (SO2): No Carbon
dioxide (CO2): No Oxygen
(O2): yes, in upper atmospheric layer as droplets, though as a reactive trace
gas Nitrogen
(N2): No Neon
(Ne): No Deuterium
(D): around core Hydrogen
(H): around core Helium
(He): around core Arbitrary
condensation points for compounds in the formation region. numbers approaching
one indicate a relatively high acquisition rate, where as higher or lower
numbers indicate less abundant compounds. TiC:
0.20 Al2O3:
0.22 C
(graphite): 0.22 SiC:
0.22 CaAl2O19:
0.22 CaTiO3:
0.23 Ca2Al2O4:
0.24 MgAl2O4:
0.26 Fe3C:
0.26 Fe:
0.26 Mg2SiO4:
0.27 AlN:
0.28 CaS:
0.29 Mg2SiO4:
0.34 TiN:
0.38 FeS:
0.70 FeO:
0.70 Ca2Mg5Si8O22:
0.64 H2O:
0.51 NH3:
0.72 H2SO4:
0.49 C6H6:
0.54 CH4:
1.44 CO2:
0.46 N2:
1.11 O2:
0.91 H2:
4.24 He:
28.02
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