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MCG520: red dwarf star with 4 planets

  MCG520.1   MCG520.2  
MCG520.3
 
MCG520.4
 

Solar system 'MCG520' comprises the star 'MCG520' and the retinue of celestial objects gravitationally bound to it: 4 planets and their 223 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'MCG520', a red dwarf class star that contains about 99.43% of the system's known mass and dominates it gravitationally. MCG520 is located more than 2819 lightyears from the center of the galaxy.

This solar system comprises 4 planets

MCG520.1 is a very large terrestrial planet (11104 km radius) which orbits its star in 561 Earth days, one day on MCG520.1 lasts 6 Earth hours. Its average temperature is 121 K (-152 C), its atmosphere mainly consists of nitrogen, oxygen and it has 41 moons.
MCG520.2 is a very small terrestrial planet (2543 km radius) which orbits its star in 1031 Earth days, one day on MCG520.2 lasts 42 Earth hours. Its average temperature is 108 K (-165 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
MCG520.3 is a large gas giant (72422 km radius) which orbits its star in 61178 Earth days, one day on MCG520.3 lasts 4 Earth hours. Its average temperature is 1536 K (1263 C), its atmosphere mainly consists of hydrogen and it has 96 moons.
MCG520.4 is a large gas giant (67872 km radius) which orbits its star in 112392 Earth days, one day on MCG520.4 lasts 4 Earth hours. Its average temperature is 1137 K (864 C), its atmosphere mainly consists of hydrogen, helium and it has 86 moons.
More planetary details...

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Planetary Orbits

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Planetary Statistics

planet:MCG520.1MCG520.2MCG520.3MCG520.4
distance from star:92*106 km138*106 km2110*106 km3165*106 km
radius:11104 km2543 km72422 km67872 km
mass:10952*1021 kg131*1021 kg3038795*1021 kg2501277*1021 kg
surface gravity: 5.92 m/s2
0.60 Earths
1.35 m/s2
0.13 Earths
38.6 m/s2
3.94 Earths
36.2 m/s2
3.70 Earths
escape velocity:11.47 km/s2.622 km/s74.83 km/s70.13 km/s
year: 2244 MCG520.1 days
561 Earth days
589 MCG520.2 days
1031 Earth days
367068 MCG520.3 days
61178 Earth days
674352 MCG520.4 days
112392 Earth days
day:6 hrs42 hrs4 hrs4 hrs
axial tilt:
temperature:121 K
-152 C
108 K
-165 C
1536 K
1263 C
1137 K
864 C
atmosphere:3% H2
1% He
70% N2
22% O2
4% CO2
0% other
2% H2
1% He
69% N2
27% O2
1% CO2
0% other
91% H2
9% He
0% other
82% H2
18% He
0% other
moons:4109686
rings:00121

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