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MCK388: red giant star with 3 planets

  MCK388.1  
MCK388.2
 
MCK388.3
 

Solar system 'MCK388' comprises the star 'MCK388' and the retinue of celestial objects gravitationally bound to it: 3 planets and their 330 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'MCK388', a red giant class star that contains about 99.88% of the system's known mass and dominates it gravitationally. MCK388 is located more than 2819 lightyears from the center of the galaxy.

This solar system comprises 3 planets

MCK388.1 is a huge terrestrial planet (14314 km radius) which orbits its star in 3662 Earth days, one day on MCK388.1 lasts 4 Earth hours. Its average temperature is 1484 K (1211 C), its atmosphere mainly consists of hydrogen, helium and it has 77 moons.
MCK388.2 is a large gas giant (68837 km radius) which orbits its star in 55911 Earth days, one day on MCK388.2 lasts 3 Earth hours. Its average temperature is 1160 K (887 C), its atmosphere mainly consists of hydrogen, helium and it has 125 moons.
MCK388.3 is a large gas giant (71351 km radius) which orbits its star in 157225 Earth days, one day on MCK388.3 lasts 3 Earth hours. Its average temperature is 1528 K (1255 C), its atmosphere mainly consists of hydrogen, helium and it has 128 moons.
More planetary details...

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Planetary Orbits

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Planetary Statistics

planet:MCK388.1MCK388.2MCK388.3
distance from star:322*106 km1987*106 km3958*106 km
radius:14314 km68837 km71351 km
mass:23462*1021 kg2609490*1021 kg2905963*1021 kg
surface gravity: 7.64 m/s2
0.78 Earths
36.7 m/s2
3.75 Earths
38.0 m/s2
3.88 Earths
escape velocity:14.79 km/s71.13 km/s73.73 km/s
year: 21972 MCK388.1 days
3662 Earth days
447288 MCK388.2 days
55911 Earth days
1257800 MCK388.3 days
157225 Earth days
day:4 hrs3 hrs3 hrs
axial tilt:
temperature:1484 K
1211 C
1160 K
887 C
1528 K
1255 C
atmosphere:85% H2
15% He
0% other
87% H2
13% He
0% other
76% H2
24% He
0% other
moons:77125128
rings:089

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