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MCD866: red dwarf star with 8 planets

 
MCD866.1
  MCD866.2   MCD866.3  
MCD866.4
 
MCD866.5
  MCD866.6  
MCD866.7
  MCD866.8  

Solar system 'MCD866' comprises the star 'MCD866' and the retinue of celestial objects gravitationally bound to it: 8 planets and their 476 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'MCD866', a red dwarf class star that contains about 99.68% of the system's known mass and dominates it gravitationally. MCD866 is located more than 2506 lightyears from the center of the galaxy.

MCD866.4, the fourth planet in this system, may feature life forms. Its average temperature is 297K (24C) and it's atmosphere contains 8% of oxygen. One year on MCD866.4 lasts 696 days, one day lasts 20 hours. It's diameter is 8968 km, 0.7 times the diameter of the Earth.

This solar system comprises 8 planets

MCD866.1 is a medium terrestrial planet (5992 km radius) which orbits its star in 24 Earth days, one day on MCD866.1 lasts 14 Earth hours. Its average temperature is 1573 K (1300 C), its atmosphere mainly consists of nitrogen and it has 1 moons.
MCD866.2 is a very large terrestrial planet (9249 km radius) which orbits its star in 206 Earth days, one day on MCD866.2 lasts 10 Earth hours. Its average temperature is 753 K (480 C), its atmosphere mainly consists of hydrogen, nitrogen, oxygen and it has 11 moons.
MCD866.3 is a large terrestrial planet (8590 km radius) which orbits its star in 379 Earth days, one day on MCD866.3 lasts 11 Earth hours. Its average temperature is 502 K (229 C), its atmosphere mainly consists of nitrogen, oxygen and it has 23 moons.
MCD866.4 is a small terrestrial planet (4484 km radius) which orbits its star in 696 Earth days, one day on MCD866.4 lasts 20 Earth hours. Its average temperature is 297 K (24 C), its atmosphere mainly consists of nitrogen and it has 0 moons.
MCD866.5 is a medium gas giant (37777 km radius) which orbits its star in 30175 Earth days, one day on MCD866.5 lasts 8 Earth hours. Its average temperature is 1209 K (936 C), its atmosphere mainly consists of hydrogen, helium and it has 96 moons.
MCD866.6 is a large gas giant (61857 km radius) which orbits its star in 56416 Earth days, one day on MCD866.6 lasts 8 Earth hours. Its average temperature is 1127 K (854 C), its atmosphere mainly consists of hydrogen and it has 114 moons.
MCD866.7 is a medium gas giant (25116 km radius) which orbits its star in 103644 Earth days, one day on MCD866.7 lasts 8 Earth hours. Its average temperature is 1454 K (1181 C), its atmosphere mainly consists of hydrogen and it has 108 moons.
MCD866.8 is a massive terrestrial planet (16155 km radius) which orbits its star in 190407 Earth days, one day on MCD866.8 lasts 8 Earth hours. Its average temperature is 1241 K (968 C), its atmosphere mainly consists of hydrogen, helium and it has 123 moons.
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Planetary Statistics

planet:MCD866.1MCD866.2MCD866.3MCD866.4MCD866.5
distance from star:11*106 km47*106 km71*106 km106*106 km1317*106 km
radius:5992 km9249 km8590 km4484 km37777 km
mass:1721*1021 kg6329*1021 kg5070*1021 kg721*1021 kg431292*1021 kg
surface gravity: 3.19 m/s2
0.32 Earths
4.93 m/s2
0.50 Earths
4.58 m/s2
0.46 Earths
2.39 m/s2
0.24 Earths
20.1 m/s2
2.05 Earths
escape velocity:6.191 km/s9.557 km/s8.876 km/s4.632 km/s39.03 km/s
year: 41 MCD866.1 days
24 Earth days
494 MCD866.2 days
206 Earth days
826 MCD866.3 days
379 Earth days
835 MCD866.4 days
696 Earth days
90525 MCD866.5 days
30175 Earth days
day:14 hrs10 hrs11 hrs20 hrs8 hrs
axial tilt:12°17°12°72°
temperature:1573 K
1300 C
753 K
480 C
502 K
229 C
297 K
24 C
1209 K
936 C
atmosphere:86% N2
7% O2
7% CO2
0% other
11% H2
3% He
48% N2
38% O2
0% other
9% H2
2% He
57% N2
30% O2
2% CO2
0% other
83% N2
8% O2
9% CO2
0% other
80% H2
20% He
0% other
moons:11123096
rings:10031

planet:MCD866.6MCD866.7MCD866.8
distance from star:1999*106 km2998*106 km4497*106 km
radius:61857 km25116 km16155 km
mass:1893461*1021 kg126748*1021 kg33729*1021 kg
surface gravity: 33.0 m/s2
3.37 Earths
13.4 m/s2
1.37 Earths
8.62 m/s2
0.88 Earths
escape velocity:63.92 km/s25.95 km/s16.69 km/s
year: 169248 MCD866.6 days
56416 Earth days
310932 MCD866.7 days
103644 Earth days
571221 MCD866.8 days
190407 Earth days
day:8 hrs8 hrs8 hrs
axial tilt:81°
temperature:1127 K
854 C
1454 K
1181 C
1241 K
968 C
atmosphere:91% H2
9% He
0% other
96% H2
4% He
0% other
82% H2
18% He
0% other
moons:114108123
rings:0230

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