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SHD217: red giant star with 7 planets

  SHD217.1   SHD217.2   SHD217.3   SHD217.4  
SHD217.5
 
SHD217.6
  SHD217.7  

Solar system 'SHD217' is a dual star system that comprises the stars 'SHD217.A' and 'SHD217.B' and the retinue of celestial objects gravitationally bound to them: 7 planets and their 350 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal components of this star system are the stars 'SHD217.A' and 'SHD217.B' that dominate it gravitationally. 'SHD217.A' is a red giant class star that contains about 86% of the system's known mass, 'SHD217.B' is a yellow dwarf class star that contains about 13% of the system's known mass.

System 'SHD217' is located more than 2306 lightyears from the center of the galaxy.

This solar system comprises 7 planets

SHD217.1 is a large terrestrial planet (8661 km radius) which orbits its star in 386 Earth days, one day on SHD217.1 lasts 10 Earth hours. Its average temperature is 1293 K (1020 C), its atmosphere mainly consists of nitrogen, oxygen and it has 18 moons.
SHD217.2 is a small terrestrial planet (3616 km radius) which orbits its star in 709 Earth days, one day on SHD217.2 lasts 26 Earth hours. Its average temperature is 1149 K (876 C), its atmosphere mainly consists of nitrogen and it has 1 moons.
SHD217.3 is a large terrestrial planet (7948 km radius) which orbits its star in 1303 Earth days, one day on SHD217.3 lasts 10 Earth hours. Its average temperature is 1533 K (1260 C), its atmosphere mainly consists of nitrogen, oxygen and it has 16 moons.
SHD217.4 is a large terrestrial planet (8739 km radius) which orbits its star in 2394 Earth days, one day on SHD217.4 lasts 10 Earth hours. Its average temperature is 908 K (635 C), its atmosphere mainly consists of hydrogen, nitrogen, oxygen and it has 43 moons.
SHD217.5 is a massive terrestrial planet (17014 km radius) which orbits its star in 21005 Earth days, one day on SHD217.5 lasts 7 Earth hours. Its average temperature is 1372 K (1099 C), its atmosphere mainly consists of hydrogen and it has 122 moons.
SHD217.6 is a large gas giant (65778 km radius) which orbits its star in 38588 Earth days, one day on SHD217.6 lasts 7 Earth hours. Its average temperature is 1527 K (1254 C), its atmosphere mainly consists of hydrogen, helium and it has 60 moons.
SHD217.7 is a medium gas giant (28688 km radius) which orbits its star in 70891 Earth days, one day on SHD217.7 lasts 7 Earth hours. Its average temperature is 1058 K (785 C), its atmosphere mainly consists of hydrogen and it has 90 moons.
More planetary details...

Location

Planetary Orbits

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Planetary Statistics

planet:SHD217.1SHD217.2SHD217.3SHD217.4SHD217.5
distance from star:72*106 km108*106 km162*106 km243*106 km1034*106 km
radius:8661 km3616 km7948 km8739 km17014 km
mass:5197*1021 kg378*1021 kg4016*1021 kg5339*1021 kg39401*1021 kg
surface gravity: 4.62 m/s2
0.47 Earths
1.92 m/s2
0.19 Earths
4.24 m/s2
0.43 Earths
4.66 m/s2
0.47 Earths
9.08 m/s2
0.92 Earths
escape velocity:8.949 km/s3.735 km/s8.212 km/s9.030 km/s17.58 km/s
year: 926 SHD217.1 days
386 Earth days
654 SHD217.2 days
709 Earth days
3127 SHD217.3 days
1303 Earth days
5745 SHD217.4 days
2394 Earth days
72017 SHD217.5 days
21005 Earth days
day:10 hrs26 hrs10 hrs10 hrs7 hrs
axial tilt:18°15°18°23°29°
temperature:1293 K
1020 C
1149 K
876 C
1533 K
1260 C
908 K
635 C
1372 K
1099 C
atmosphere:3% H2
3% He
55% N2
39% O2
0% other
94% N2
1% O2
5% CO2
0% other
73% N2
27% O2
0% other
24% H2
3% He
31% N2
42% O2
0% other
95% H2
5% He
0% other
moons:1811643122
rings:00006

planet:SHD217.6SHD217.7
distance from star:1551*106 km2327*106 km
radius:65778 km28688 km
mass:2276837*1021 kg188882*1021 kg
surface gravity: 35.1 m/s2
3.58 Earths
15.3 m/s2
1.56 Earths
escape velocity:67.97 km/s29.64 km/s
year: 132301 SHD217.6 days
38588 Earth days
243054 SHD217.7 days
70891 Earth days
day:7 hrs7 hrs
axial tilt:87°
temperature:1527 K
1254 C
1058 K
785 C
atmosphere:80% H2
20% He
0% other
100% H2
0% other
moons:6090
rings:220

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