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MCK331: yellow dwarf star with 3 planets

  MCK331.1   MCK331.2  
MCK331.3
 

Solar system 'MCK331' is a dual star system that comprises the stars 'MCK331.A' and 'MCK331.B' and the retinue of celestial objects gravitationally bound to them: 3 planets and their 22 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal components of this star system are the stars 'MCK331.A' and 'MCK331.B' that dominate it gravitationally. 'MCK331.A' is a yellow dwarf class star that contains about 66% of the system's known mass, 'MCK331.B' is a yellow dwarf class star that contains about 33% of the system's known mass.

System 'MCK331' is located more than 2819 lightyears from the center of the galaxy.

This solar system comprises 3 planets

MCK331.1 is a large terrestrial planet (8734 km radius) which orbits its star in 255 Earth days, one day on MCK331.1 lasts 6 Earth hours. Its average temperature is 707 K (434 C), its atmosphere mainly consists of nitrogen, oxygen and it has 16 moons.
MCK331.2 is a medium terrestrial planet (6652 km radius) which orbits its star in 469 Earth days, one day on MCK331.2 lasts 8 Earth hours. Its average temperature is 629 K (356 C), its atmosphere mainly consists of nitrogen, oxygen and it has 6 moons.
MCK331.3 is a very small terrestrial planet (2421 km radius) which orbits its star in 616 Earth days, one day on MCK331.3 lasts 45 Earth hours. Its average temperature is 1117 K (844 C), its atmosphere mainly consists of and it has 0 moons.
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Planetary Orbits

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Planetary Statistics

planet:MCK331.1MCK331.2MCK331.3
distance from star:54*106 km82*106 km98*106 km
radius:8734 km6652 km2421 km
mass:5330*1021 kg2354*1021 kg113*1021 kg
surface gravity: 4.66 m/s2
0.47 Earths
3.55 m/s2
0.36 Earths
1.28 m/s2
0.13 Earths
escape velocity:9.025 km/s6.872 km/s2.496 km/s
year: 1020 MCK331.1 days
255 Earth days
1407 MCK331.2 days
469 Earth days
328 MCK331.3 days
616 Earth days
day:6 hrs8 hrs45 hrs
axial tilt:27°321°
temperature:707 K
434 C
629 K
356 C
1117 K
844 C
atmosphere:80% N2
16% O2
4% CO2
0% other
6% H2
1% He
50% N2
41% O2
2% CO2
0% other
100% other
moons:1660
rings:0012

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