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LJA171: red giant star with 4 planets

  LJA171.1   LJA171.2   LJA171.3  
LJA171.4
 

Solar system 'LJA171' is a dual star system that comprises the stars 'LJA171.A' and 'LJA171.B' and the retinue of celestial objects gravitationally bound to them: 4 planets and their 253 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal components of this star system are the stars 'LJA171.A' and 'LJA171.B' that dominate it gravitationally. 'LJA171.A' is a red giant class star that contains about 99% of the system's known mass, 'LJA171.B' is a brown dwarf class star that contains about 0% of the system's known mass.

System 'LJA171' is located more than 5003 lightyears from the center of the galaxy.

This solar system comprises 4 planets

LJA171.1 is a very large terrestrial planet (9463 km radius) which orbits its star in 178 Earth days, one day on LJA171.1 lasts 6 Earth hours. Its average temperature is 1417 K (1144 C), its atmosphere mainly consists of nitrogen and it has 15 moons.
LJA171.2 is a large terrestrial planet (8375 km radius) which orbits its star in 328 Earth days, one day on LJA171.2 lasts 7 Earth hours. Its average temperature is 1260 K (987 C), its atmosphere mainly consists of hydrogen, nitrogen, oxygen and it has 28 moons.
LJA171.3 is a large gas giant (64859 km radius) which orbits its star in 17823 Earth days, one day on LJA171.3 lasts 4 Earth hours. Its average temperature is 1976 K (1703 C), its atmosphere mainly consists of hydrogen and it has 104 moons.
LJA171.4 is a large gas giant (76492 km radius) which orbits its star in 88518 Earth days, one day on LJA171.4 lasts 4 Earth hours. Its average temperature is 1898 K (1625 C), its atmosphere mainly consists of hydrogen, helium and it has 106 moons.
More planetary details...

Location

Planetary Orbits

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Planetary Statistics

planet:LJA171.1LJA171.2LJA171.3LJA171.4
distance from star:43*106 km64*106 km927*106 km2699*106 km
radius:9463 km8375 km64859 km76492 km
mass:6779*1021 kg4699*1021 kg2182733*1021 kg3580453*1021 kg
surface gravity: 5.05 m/s2
0.51 Earths
4.47 m/s2
0.45 Earths
34.6 m/s2
3.53 Earths
40.8 m/s2
4.17 Earths
escape velocity:9.778 km/s8.654 km/s67.02 km/s79.04 km/s
year: 712 LJA171.1 days
178 Earth days
1124 LJA171.2 days
328 Earth days
106938 LJA171.3 days
17823 Earth days
531108 LJA171.4 days
88518 Earth days
day:6 hrs7 hrs4 hrs4 hrs
axial tilt:20°28°
temperature:1417 K
1144 C
1260 K
987 C
1976 K
1703 C
1898 K
1625 C
atmosphere:84% N2
6% O2
10% CO2
0% other
15% H2
2% He
33% N2
49% O2
1% CO2
0% other
95% H2
5% He
0% other
88% H2
12% He
0% other
moons:1528104106
rings:00013

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