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MCG473: red dwarf star with 3 planets

 
MCG473.1
 
MCG473.2
  MCG473.3  

Solar system 'MCG473' comprises the star 'MCG473' and the retinue of celestial objects gravitationally bound to it: 3 planets and their 192 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'MCG473', a red dwarf class star that contains about 99.57% of the system's known mass and dominates it gravitationally. MCG473 is located more than 2819 lightyears from the center of the galaxy.

This solar system comprises 3 planets

MCG473.1 is a small terrestrial planet (4734 km radius) which orbits its star in 1 Earth days, one day on MCG473.1 lasts 14 Earth hours. Its average temperature is 1886 K (1613 C), its atmosphere mainly consists of hydrogen, nitrogen, oxygen and it has 0 moons.
MCG473.2 is a large gas giant (66984 km radius) which orbits its star in 117534 Earth days, one day on MCG473.2 lasts 3 Earth hours. Its average temperature is 1258 K (985 C), its atmosphere mainly consists of hydrogen and it has 131 moons.
MCG473.3 is a large terrestrial planet (8571 km radius) which orbits its star in 154503 Earth days, one day on MCG473.3 lasts 6 Earth hours. Its average temperature is 1073 K (800 C), its atmosphere mainly consists of and it has 61 moons.
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Planetary Statistics

planet:MCG473.1MCG473.2MCG473.3
distance from star:1*106 km3260*106 km3913*106 km
radius:4734 km66984 km8571 km
mass:848*1021 kg2404380*1021 kg5037*1021 kg
surface gravity: 2.52 m/s2
0.25 Earths
35.7 m/s2
3.65 Earths
4.57 m/s2
0.46 Earths
escape velocity:4.889 km/s69.22 km/s8.857 km/s
year: 1 MCG473.1 days
1 Earth days
940272 MCG473.2 days
117534 Earth days
618012 MCG473.3 days
154503 Earth days
day:14 hrs3 hrs6 hrs
axial tilt:13°27°
temperature:1886 K
1613 C
1258 K
985 C
1073 K
800 C
atmosphere:11% H2
2% He
57% N2
30% O2
0% other
92% H2
8% He
0% other
100% other
moons:013161
rings:1240

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