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SJK147: red dwarf star with 3 planets

  SJK147.1  
SJK147.2
 
SJK147.3
 

Solar system 'SJK147' comprises the star 'SJK147' and the retinue of celestial objects gravitationally bound to it: 3 planets and their 168 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'SJK147', a red dwarf class star that contains about 99.95% of the system's known mass and dominates it gravitationally. SJK147 is located more than 3706 lightyears from the center of the galaxy.

This solar system comprises 3 planets

SJK147.1 is a medium terrestrial planet (6680 km radius) which orbits its star in 50 Earth days, one day on SJK147.1 lasts 8 Earth hours. Its average temperature is 1530 K (1257 C), its atmosphere mainly consists of nitrogen, oxygen and it has 3 moons.
SJK147.2 is a medium gas giant (30016 km radius) which orbits its star in 3542 Earth days, one day on SJK147.2 lasts 3 Earth hours. Its average temperature is 1273 K (1000 C), its atmosphere mainly consists of hydrogen, helium and it has 49 moons.
SJK147.3 is a medium gas giant (31974 km radius) which orbits its star in 15499 Earth days, one day on SJK147.3 lasts 3 Earth hours. Its average temperature is 1711 K (1438 C), its atmosphere mainly consists of hydrogen, helium and it has 116 moons.
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Planetary Statistics

planet:SJK147.1SJK147.2SJK147.3
distance from star:18*106 km315*106 km844*106 km
radius:6680 km30016 km31974 km
mass:2384*1021 kg216345*1021 kg261505*1021 kg
surface gravity: 3.56 m/s2
0.36 Earths
16.0 m/s2
1.63 Earths
17.0 m/s2
1.73 Earths
escape velocity:6.902 km/s31.01 km/s33.04 km/s
year: 150 SJK147.1 days
50 Earth days
28336 SJK147.2 days
3542 Earth days
123992 SJK147.3 days
15499 Earth days
day:8 hrs3 hrs3 hrs
axial tilt:76°49°
temperature:1530 K
1257 C
1273 K
1000 C
1711 K
1438 C
atmosphere:9% H2
2% He
55% N2
34% O2
0% other
84% H2
16% He
0% other
89% H2
11% He
0% other
moons:349116
rings:0722

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