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MCK397: red dwarf star with 8 planets

  MCK397.1   MCK397.2   MCK397.3   MCK397.4   MCK397.5   MCK397.6   MCK397.7  
MCK397.8
 

Solar system 'MCK397' comprises the star 'MCK397' and the retinue of celestial objects gravitationally bound to it: 8 planets and their 227 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'MCK397', a red dwarf class star that contains about 99.73% of the system's known mass and dominates it gravitationally. MCK397 is located more than 2819 lightyears from the center of the galaxy.

This solar system comprises 8 planets

MCK397.1 is a small terrestrial planet (4909 km radius) which orbits its star in 80 Earth days, one day on MCK397.1 lasts 18 Earth hours. Its average temperature is 1626 K (1353 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
MCK397.2 is a medium terrestrial planet (5611 km radius) which orbits its star in 147 Earth days, one day on MCK397.2 lasts 15 Earth hours. Its average temperature is 1445 K (1172 C), its atmosphere mainly consists of hydrogen, nitrogen, oxygen and it has 1 moons.
MCK397.3 is a medium terrestrial planet (5765 km radius) which orbits its star in 538 Earth days, one day on MCK397.3 lasts 15 Earth hours. Its average temperature is 386 K (113 C), its atmosphere mainly consists of hydrogen, nitrogen, oxygen and it has 1 moons.
MCK397.4 is a large terrestrial planet (7870 km radius) which orbits its star in 989 Earth days, one day on MCK397.4 lasts 12 Earth hours. Its average temperature is 229 K (-44 C), its atmosphere mainly consists of nitrogen and it has 34 moons.
MCK397.5 is a very small terrestrial planet (2322 km radius) which orbits its star in 1817 Earth days, one day on MCK397.5 lasts 54 Earth hours. Its average temperature is 127 K (-146 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
MCK397.6 is a medium terrestrial planet (5870 km radius) which orbits its star in 3338 Earth days, one day on MCK397.6 lasts 15 Earth hours. Its average temperature is 67 K (-206 C), its atmosphere mainly consists of nitrogen, oxygen and it has 38 moons.
MCK397.7 is a medium terrestrial planet (5480 km radius) which orbits its star in 6133 Earth days, one day on MCK397.7 lasts 16 Earth hours. Its average temperature is 35 K (-238 C), its atmosphere mainly consists of nitrogen, oxygen and it has 17 moons.
MCK397.8 is a large gas giant (68638 km radius) which orbits its star in 87015 Earth days, one day on MCK397.8 lasts 8 Earth hours. Its average temperature is 1364 K (1091 C), its atmosphere mainly consists of hydrogen, helium and it has 136 moons.
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Planetary Statistics

planet:MCK397.1MCK397.2MCK397.3MCK397.4MCK397.5
distance from star:25*106 km37*106 km89*106 km134*106 km202*106 km
radius:4909 km5611 km5765 km7870 km2322 km
mass:946*1021 kg1413*1021 kg1532*1021 kg3899*1021 kg100*1021 kg
surface gravity: 2.62 m/s2
0.26 Earths
2.99 m/s2
0.30 Earths
3.07 m/s2
0.31 Earths
4.20 m/s2
0.42 Earths
1.23 m/s2
0.12 Earths
escape velocity:5.071 km/s5.797 km/s5.955 km/s8.132 km/s2.397 km/s
year: 106 MCK397.1 days
80 Earth days
235 MCK397.2 days
147 Earth days
860 MCK397.3 days
538 Earth days
1978 MCK397.4 days
989 Earth days
807 MCK397.5 days
1817 Earth days
day:18 hrs15 hrs15 hrs12 hrs54 hrs
axial tilt:30°11°22°21°12°
temperature:1626 K
1353 C
1445 K
1172 C
386 K
113 C
229 K
-44 C
127 K
-146 C
atmosphere:71% N2
28% O2
1% CO2
0% other
13% H2
3% He
38% N2
45% O2
1% CO2
0% other
21% H2
3% He
39% N2
37% O2
0% other
90% N2
3% O2
7% CO2
0% other
83% N2
14% O2
3% CO2
0% other
moons:011340
rings:00000

planet:MCK397.6MCK397.7MCK397.8
distance from star:303*106 km455*106 km2668*106 km
radius:5870 km5480 km68638 km
mass:1618*1021 kg1316*1021 kg2586925*1021 kg
surface gravity: 3.13 m/s2
0.32 Earths
2.92 m/s2
0.29 Earths
36.6 m/s2
3.74 Earths
escape velocity:6.065 km/s5.661 km/s70.92 km/s
year: 5340 MCK397.6 days
3338 Earth days
9199 MCK397.7 days
6133 Earth days
261045 MCK397.8 days
87015 Earth days
day:15 hrs16 hrs8 hrs
axial tilt:14°
temperature:67 K
-206 C
35 K
-238 C
1364 K
1091 C
atmosphere:2% H2
1% He
61% N2
35% O2
1% CO2
0% other
54% N2
46% O2
0% other
76% H2
24% He
0% other
moons:3817136
rings:0014

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