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MDC399: red giant star with 3 planets

  MDC399.1  
MDC399.2
 
MDC399.3
 

Solar system 'MDC399' is a dual star system that comprises the stars 'MDC399.A' and 'MDC399.B' and the retinue of celestial objects gravitationally bound to them: 3 planets and their 201 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal components of this star system are the stars 'MDC399.A' and 'MDC399.B' that dominate it gravitationally. 'MDC399.A' is a red giant class star that contains about 71% of the system's known mass, 'MDC399.B' is a red giant class star that contains about 28% of the system's known mass.

System 'MDC399' is located more than 2819 lightyears from the center of the galaxy.

This solar system comprises 3 planets

MDC399.1 is a very large terrestrial planet (11894 km radius) which orbits its star in 5 Earth days, one day on MDC399.1 lasts 4 Earth hours. Its average temperature is 1180 K (907 C), its atmosphere mainly consists of nitrogen, oxygen and it has 3 moons.
MDC399.2 is a medium gas giant (25895 km radius) which orbits its star in 14652 Earth days, one day on MDC399.2 lasts 3 Earth hours. Its average temperature is 1109 K (836 C), its atmosphere mainly consists of hydrogen and it has 108 moons.
MDC399.3 is a huge terrestrial planet (12996 km radius) which orbits its star in 34221 Earth days, one day on MDC399.3 lasts 4 Earth hours. Its average temperature is 1067 K (794 C), its atmosphere mainly consists of hydrogen, helium and it has 90 moons.
More planetary details...

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Planetary Orbits

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Planetary Statistics

planet:MDC399.1MDC399.2MDC399.3
distance from star:4*106 km813*106 km1432*106 km
radius:11894 km25895 km12996 km
mass:13460*1021 kg138911*1021 kg17559*1021 kg
surface gravity: 6.35 m/s2
0.64 Earths
13.8 m/s2
1.41 Earths
6.93 m/s2
0.70 Earths
escape velocity:12.29 km/s26.75 km/s13.42 km/s
year: 30 MDC399.1 days
5 Earth days
117216 MDC399.2 days
14652 Earth days
205326 MDC399.3 days
34221 Earth days
day:4 hrs3 hrs4 hrs
axial tilt:16°26°
temperature:1180 K
907 C
1109 K
836 C
1067 K
794 C
atmosphere:3% H2
2% He
68% N2
26% O2
1% CO2
0% other
96% H2
4% He
0% other
82% H2
18% He
0% other
moons:310890
rings:0109

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