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QJK931: red giant star with 4 planets

  QJK931.1   QJK931.2  
QJK931.3
  QJK931.4  

Solar system 'QJK931' comprises the star 'QJK931' and the retinue of celestial objects gravitationally bound to it: 4 planets and their 283 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'QJK931', a red giant class star that contains about 99.94% of the system's known mass and dominates it gravitationally. QJK931 is located more than 2705 lightyears from the center of the galaxy.

This solar system comprises 4 planets

QJK931.1 is a very large terrestrial planet (10997 km radius) which orbits its star in 223 Earth days, one day on QJK931.1 lasts 6 Earth hours. Its average temperature is 1844 K (1571 C), its atmosphere mainly consists of nitrogen, oxygen and it has 48 moons.
QJK931.2 is a medium terrestrial planet (6498 km radius) which orbits its star in 410 Earth days, one day on QJK931.2 lasts 9 Earth hours. Its average temperature is 1639 K (1366 C), its atmosphere mainly consists of nitrogen, oxygen and it has 11 moons.
QJK931.3 is a large gas giant (50983 km radius) which orbits its star in 68020 Earth days, one day on QJK931.3 lasts 4 Earth hours. Its average temperature is 1116 K (843 C), its atmosphere mainly consists of hydrogen, helium and it has 138 moons.
QJK931.4 is a large gas giant (51794 km radius) which orbits its star in 124961 Earth days, one day on QJK931.4 lasts 4 Earth hours. Its average temperature is 1792 K (1519 C), its atmosphere mainly consists of hydrogen, helium and it has 86 moons.
More planetary details...

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Planetary Orbits

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Planetary Statistics

planet:QJK931.1QJK931.2QJK931.3QJK931.4
distance from star:50*106 km75*106 km2264*106 km3396*106 km
radius:10997 km6498 km50983 km51794 km
mass:10639*1021 kg2194*1021 kg1060147*1021 kg1111548*1021 kg
surface gravity: 5.87 m/s2
0.60 Earths
3.46 m/s2
0.35 Earths
27.2 m/s2
2.78 Earths
27.6 m/s2
2.82 Earths
escape velocity:11.36 km/s6.713 km/s52.68 km/s53.52 km/s
year: 892 QJK931.1 days
223 Earth days
1093 QJK931.2 days
410 Earth days
408120 QJK931.3 days
68020 Earth days
749766 QJK931.4 days
124961 Earth days
day:6 hrs9 hrs4 hrs4 hrs
axial tilt:19°16°86°
temperature:1844 K
1571 C
1639 K
1366 C
1116 K
843 C
1792 K
1519 C
atmosphere:8% H2
2% He
65% N2
24% O2
1% CO2
0% other
3% H2
3% He
53% N2
40% O2
1% CO2
0% other
86% H2
14% He
0% other
82% H2
18% He
0% other
moons:481113886
rings:00210

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