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LBJ663: red giant star with 2 planets


Solar system 'LBJ663' is a dual star system that comprises the stars 'LBJ663.A' and 'LBJ663.B' and the retinue of celestial objects gravitationally bound to them: 2 planets and their 165 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal components of this star system are the stars 'LBJ663.A' and 'LBJ663.B' that dominate it gravitationally. 'LBJ663.A' is a red giant class star that contains about 99% of the system's known mass, 'LBJ663.B' is a brown dwarf class star that contains about 0% of the system's known mass.

System 'LBJ663' is located more than 3662 lightyears from the center of the galaxy.

This solar system comprises 2 planets

LBJ663.1 is a medium terrestrial planet (5702 km radius) which orbits its star in 175 Earth days, one day on LBJ663.1 lasts 9 Earth hours. Its average temperature is 1659 K (1386 C), its atmosphere mainly consists of nitrogen, carbon dioxide and it has 4 moons.
LBJ663.2 is a large gas giant (78867 km radius) which orbits its star in 26175 Earth days, one day on LBJ663.2 lasts 2 Earth hours. Its average temperature is 1259 K (986 C), its atmosphere mainly consists of hydrogen and it has 161 moons.
More planetary details...


Planetary Orbits


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Planetary Statistics

distance from star:42*106 km1198*106 km
radius:5702 km78867 km
mass:1483*1021 kg3924424*1021 kg
surface gravity: 3.04 m/s2
0.31 Earths
42.1 m/s2
4.30 Earths
escape velocity:5.892 km/s81.49 km/s
year: 466 LBJ663.1 days
175 Earth days
314100 LBJ663.2 days
26175 Earth days
day:9 hrs2 hrs
axial tilt:24°
temperature:1659 K
1386 C
1259 K
986 C
atmosphere:79% N2
1% O2
20% CO2
0% other
90% H2
10% He
0% other

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