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VHD823: red dwarf star with 4 planets

  VHD823.1   VHD823.2  
VHD823.3
 
VHD823.4
 

Solar system 'VHD823' comprises the star 'VHD823' and the retinue of celestial objects gravitationally bound to it: 4 planets and their 248 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'VHD823', a red dwarf class star that contains about 99.85% of the system's known mass and dominates it gravitationally. VHD823 is located more than 2317 lightyears from the center of the galaxy.

This solar system comprises 4 planets

VHD823.1 is a very large terrestrial planet (10929 km radius) which orbits its star in 3 Earth days, one day on VHD823.1 lasts 6 Earth hours. Its average temperature is 1902 K (1629 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
VHD823.2 is a medium terrestrial planet (6867 km radius) which orbits its star in 125 Earth days, one day on VHD823.2 lasts 9 Earth hours. Its average temperature is 1883 K (1610 C), its atmosphere mainly consists of nitrogen, oxygen and it has 8 moons.
VHD823.3 is a large gas giant (55107 km radius) which orbits its star in 66540 Earth days, one day on VHD823.3 lasts 4 Earth hours. Its average temperature is 1162 K (889 C), its atmosphere mainly consists of hydrogen, helium and it has 119 moons.
VHD823.4 is a medium gas giant (22216 km radius) which orbits its star in 122241 Earth days, one day on VHD823.4 lasts 4 Earth hours. Its average temperature is 1480 K (1207 C), its atmosphere mainly consists of hydrogen and it has 121 moons.
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Planetary Statistics

planet:VHD823.1VHD823.2VHD823.3VHD823.4
distance from star:3*106 km34*106 km2231*106 km3347*106 km
radius:10929 km6867 km55107 km22216 km
mass:10443*1021 kg2590*1021 kg1338783*1021 kg87717*1021 kg
surface gravity: 5.83 m/s2
0.59 Earths
3.66 m/s2
0.37 Earths
29.4 m/s2
3.00 Earths
11.8 m/s2
1.20 Earths
escape velocity:11.29 km/s7.095 km/s56.94 km/s22.95 km/s
year: 12 VHD823.1 days
3 Earth days
333 VHD823.2 days
125 Earth days
399240 VHD823.3 days
66540 Earth days
733446 VHD823.4 days
122241 Earth days
day:6 hrs9 hrs4 hrs4 hrs
axial tilt:194°21°
temperature:1902 K
1629 C
1883 K
1610 C
1162 K
889 C
1480 K
1207 C
atmosphere:1% He
67% N2
29% O2
3% CO2
0% other
6% H2
3% He
56% N2
33% O2
2% CO2
0% other
78% H2
22% He
0% other
99% H2
1% He
0% other
moons:08119121
rings:0058

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