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RBK875: red dwarf star with 4 planets

  RBK875.1   RBK875.2  
RBK875.3
 
RBK875.4
 

Solar system 'RBK875' comprises the star 'RBK875' and the retinue of celestial objects gravitationally bound to it: 4 planets and their 188 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'RBK875', a red dwarf class star that contains about 98.25% of the system's known mass and dominates it gravitationally. RBK875 is located more than 375 lightyears from the center of the galaxy.

This solar system comprises 4 planets

RBK875.1 is a small terrestrial planet (4994 km radius) which orbits its star in 125 Earth days, one day on RBK875.1 lasts 14 Earth hours. Its average temperature is 148 K (-125 C), its atmosphere mainly consists of nitrogen and it has 2 moons.
RBK875.2 is a very large terrestrial planet (11009 km radius) which orbits its star in 360 Earth days, one day on RBK875.2 lasts 6 Earth hours. Its average temperature is 72 K (-201 C), its atmosphere mainly consists of nitrogen and it has 24 moons.
RBK875.3 is a large gas giant (69673 km radius) which orbits its star in 68831 Earth days, one day on RBK875.3 lasts 4 Earth hours. Its average temperature is 1802 K (1529 C), its atmosphere mainly consists of hydrogen and it has 62 moons.
RBK875.4 is a medium gas giant (25270 km radius) which orbits its star in 127500 Earth days, one day on RBK875.4 lasts 4 Earth hours. Its average temperature is 1027 K (754 C), its atmosphere mainly consists of hydrogen, helium and it has 100 moons.
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Planetary Orbits

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Planetary Statistics

planet:RBK875.1RBK875.2RBK875.3RBK875.4
distance from star:34*106 km68*106 km2282*106 km3442*106 km
radius:4994 km11009 km69673 km25270 km
mass:996*1021 kg10674*1021 kg2705724*1021 kg129093*1021 kg
surface gravity: 2.66 m/s2
0.27 Earths
5.87 m/s2
0.60 Earths
37.2 m/s2
3.80 Earths
13.4 m/s2
1.37 Earths
escape velocity:5.159 km/s11.37 km/s71.99 km/s26.11 km/s
year: 214 RBK875.1 days
125 Earth days
1440 RBK875.2 days
360 Earth days
412986 RBK875.3 days
68831 Earth days
765000 RBK875.4 days
127500 Earth days
day:14 hrs6 hrs4 hrs4 hrs
axial tilt:228°
temperature:148 K
-125 C
72 K
-201 C
1802 K
1529 C
1027 K
754 C
atmosphere:89% N2
2% O2
9% CO2
0% other
82% N2
10% O2
8% CO2
0% other
100% H2
0% other
89% H2
11% He
0% other
moons:22462100
rings:00191

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