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MJJ531: red dwarf star with 5 planets

  MJJ531.1  
MJJ531.2
  MJJ531.3  
MJJ531.4
  MJJ531.5  

Solar system 'MJJ531' comprises the star 'MJJ531' and the retinue of celestial objects gravitationally bound to it: 5 planets and their 444 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'MJJ531', a red dwarf class star that contains about 99.67% of the system's known mass and dominates it gravitationally. MJJ531 is located more than 2611 lightyears from the center of the galaxy.

This solar system comprises 5 planets

MJJ531.1 is a small terrestrial planet (3610 km radius) which orbits its star in 18 Earth days, one day on MJJ531.1 lasts 24 Earth hours. Its average temperature is 1297 K (1024 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
MJJ531.2 is a large gas giant (66776 km radius) which orbits its star in 22250 Earth days, one day on MJJ531.2 lasts 5 Earth hours. Its average temperature is 1460 K (1187 C), its atmosphere mainly consists of hydrogen and it has 107 moons.
MJJ531.3 is a medium gas giant (34276 km radius) which orbits its star in 63933 Earth days, one day on MJJ531.3 lasts 5 Earth hours. Its average temperature is 1251 K (978 C), its atmosphere mainly consists of hydrogen, helium and it has 101 moons.
MJJ531.4 is a massive terrestrial planet (16467 km radius) which orbits its star in 117453 Earth days, one day on MJJ531.4 lasts 5 Earth hours. Its average temperature is 1425 K (1152 C), its atmosphere mainly consists of hydrogen and it has 136 moons.
MJJ531.5 is a massive terrestrial planet (17871 km radius) which orbits its star in 215774 Earth days, one day on MJJ531.5 lasts 5 Earth hours. Its average temperature is 1343 K (1070 C), its atmosphere mainly consists of hydrogen, helium and it has 100 moons.
More planetary details...

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Planetary Orbits

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Planetary Statistics

planet:MJJ531.1MJJ531.2MJJ531.3MJJ531.4MJJ531.5
distance from star:9*106 km1075*106 km2172*106 km3259*106 km4889*106 km
radius:3610 km66776 km34276 km16467 km17871 km
mass:376*1021 kg2382051*1021 kg322151*1021 kg35721*1021 kg45660*1021 kg
surface gravity: 1.92 m/s2
0.19 Earths
35.6 m/s2
3.64 Earths
18.3 m/s2
1.87 Earths
8.79 m/s2
0.89 Earths
9.54 m/s2
0.97 Earths
escape velocity:3.728 km/s69.00 km/s35.42 km/s17.01 km/s18.46 km/s
year: 18 MJJ531.1 days
18 Earth days
106800 MJJ531.2 days
22250 Earth days
306878 MJJ531.3 days
63933 Earth days
563774 MJJ531.4 days
117453 Earth days
1035715 MJJ531.5 days
215774 Earth days
day:24 hrs5 hrs5 hrs5 hrs5 hrs
axial tilt:42°
temperature:1297 K
1024 C
1460 K
1187 C
1251 K
978 C
1425 K
1152 C
1343 K
1070 C
atmosphere:66% N2
32% O2
2% CO2
0% other
96% H2
4% He
0% other
80% H2
20% He
0% other
95% H2
5% He
0% other
80% H2
20% He
0% other
moons:0107101136100
rings:019040

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