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RDK864: red giant star with 4 planets

  RDK864.1  
RDK864.2
 
RDK864.3
 
RDK864.4
 

Solar system 'RDK864' comprises the star 'RDK864' and the retinue of celestial objects gravitationally bound to it: 4 planets and their 201 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'RDK864', a red giant class star that contains about 99.99% of the system's known mass and dominates it gravitationally. RDK864 is located more than 4503 lightyears from the center of the galaxy.

This solar system comprises 4 planets

RDK864.1 is a small terrestrial planet (4047 km radius) which orbits its star in 62 Earth days, one day on RDK864.1 lasts 19 Earth hours. Its average temperature is 1978 K (1705 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
RDK864.2 is a large gas giant (40649 km radius) which orbits its star in 1089 Earth days, one day on RDK864.2 lasts 4 Earth hours. Its average temperature is 1617 K (1344 C), its atmosphere mainly consists of hydrogen, helium and it has 138 moons.
RDK864.3 is a large terrestrial planet (7580 km radius) which orbits its star in 2002 Earth days, one day on RDK864.3 lasts 8 Earth hours. Its average temperature is 1356 K (1083 C), its atmosphere mainly consists of hydrogen, helium and it has 21 moons.
RDK864.4 is a medium terrestrial planet (5573 km radius) which orbits its star in 6005 Earth days, one day on RDK864.4 lasts 12 Earth hours. Its average temperature is 1705 K (1432 C), its atmosphere mainly consists of hydrogen and it has 42 moons.
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Planetary Statistics

planet:RDK864.1RDK864.2RDK864.3RDK864.4
distance from star:21*106 km143*106 km215*106 km448*106 km
radius:4047 km40649 km7580 km5573 km
mass:530*1021 kg537328*1021 kg3484*1021 kg1384*1021 kg
surface gravity: 2.15 m/s2
0.21 Earths
21.7 m/s2
2.21 Earths
4.04 m/s2
0.41 Earths
2.97 m/s2
0.30 Earths
escape velocity:4.181 km/s42.00 km/s7.832 km/s5.757 km/s
year: 78 RDK864.1 days
62 Earth days
6534 RDK864.2 days
1089 Earth days
6006 RDK864.3 days
2002 Earth days
12010 RDK864.4 days
6005 Earth days
day:19 hrs4 hrs8 hrs12 hrs
axial tilt:31°
temperature:1978 K
1705 C
1617 K
1344 C
1356 K
1083 C
1705 K
1432 C
atmosphere:4% H2
2% He
62% N2
29% O2
3% CO2
0% other
78% H2
22% He
0% other
85% H2
15% He
0% other
100% H2
0% other
moons:01382142
rings:016923

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