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SJK150: yellow giant star with 4 planets

  SJK150.1   SJK150.2  
SJK150.3
 
SJK150.4
 

Solar system 'SJK150' is a dual star system that comprises the stars 'SJK150.A' and 'SJK150.B' and the retinue of celestial objects gravitationally bound to them: 4 planets and their 234 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal components of this star system are the stars 'SJK150.A' and 'SJK150.B' that dominate it gravitationally. 'SJK150.A' is a yellow giant class star that contains about 93% of the system's known mass, 'SJK150.B' is a red giant class star that contains about 6% of the system's known mass.

System 'SJK150' is located more than 3706 lightyears from the center of the galaxy.

This solar system comprises 4 planets

SJK150.1 is a medium terrestrial planet (5377 km radius) which orbits its star in 206 Earth days, one day on SJK150.1 lasts 12 Earth hours. Its average temperature is 1533 K (1260 C), its atmosphere mainly consists of nitrogen and it has 0 moons.
SJK150.2 is a large terrestrial planet (7052 km radius) which orbits its star in 378 Earth days, one day on SJK150.2 lasts 9 Earth hours. Its average temperature is 1363 K (1090 C), its atmosphere mainly consists of hydrogen, nitrogen, oxygen and it has 7 moons.
SJK150.3 is a medium gas giant (35838 km radius) which orbits its star in 7066 Earth days, one day on SJK150.3 lasts 4 Earth hours. Its average temperature is 1326 K (1053 C), its atmosphere mainly consists of hydrogen and it has 99 moons.
SJK150.4 is a large gas giant (51544 km radius) which orbits its star in 20429 Earth days, one day on SJK150.4 lasts 4 Earth hours. Its average temperature is 1114 K (841 C), its atmosphere mainly consists of hydrogen, helium and it has 128 moons.
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Planetary Statistics

planet:SJK150.1SJK150.2SJK150.3SJK150.4
distance from star:47*106 km71*106 km500*106 km1015*106 km
radius:5377 km7052 km35838 km51544 km
mass:1243*1021 kg2805*1021 kg368231*1021 kg1095530*1021 kg
surface gravity: 2.86 m/s2
0.29 Earths
3.76 m/s2
0.38 Earths
19.1 m/s2
1.95 Earths
27.5 m/s2
2.81 Earths
escape velocity:5.554 km/s7.286 km/s37.03 km/s53.26 km/s
year: 412 SJK150.1 days
206 Earth days
1008 SJK150.2 days
378 Earth days
42396 SJK150.3 days
7066 Earth days
122574 SJK150.4 days
20429 Earth days
day:12 hrs9 hrs4 hrs4 hrs
axial tilt:21°14°
temperature:1533 K
1260 C
1363 K
1090 C
1326 K
1053 C
1114 K
841 C
atmosphere:93% N2
5% O2
2% CO2
0% other
19% H2
3% He
37% N2
40% O2
1% CO2
0% other
92% H2
8% He
0% other
82% H2
18% He
0% other
moons:0799128
rings:0076

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