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LBH420: red supergiant star with 3 planets

 
LBH420.1
 
LBH420.2
 
LBH420.3
 

Solar system 'LBH420' is a dual star system that comprises the stars 'LBH420.A' and 'LBH420.B' and the retinue of celestial objects gravitationally bound to them: 3 planets and their 307 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal components of this star system are the stars 'LBH420.A' and 'LBH420.B' that dominate it gravitationally. 'LBH420.A' is a red supergiant class star that contains about 86% of the system's known mass, 'LBH420.B' is a red giant class star that contains about 13% of the system's known mass.

System 'LBH420' is located more than 4875 lightyears from the center of the galaxy.

This solar system comprises 3 planets

LBH420.1 is a large gas giant (65927 km radius) which orbits its star in 79651 Earth days, one day on LBH420.1 lasts 3 Earth hours. Its average temperature is 1468 K (1195 C), its atmosphere mainly consists of hydrogen, helium and it has 35 moons.
LBH420.2 is a medium gas giant (30662 km radius) which orbits its star in 146328 Earth days, one day on LBH420.2 lasts 3 Earth hours. Its average temperature is 1821 K (1548 C), its atmosphere mainly consists of hydrogen, helium and it has 107 moons.
LBH420.3 is a medium gas giant (21939 km radius) which orbits its star in 268823 Earth days, one day on LBH420.3 lasts 3 Earth hours. Its average temperature is 1099 K (826 C), its atmosphere mainly consists of hydrogen and it has 165 moons.
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Planetary Statistics

planet:LBH420.1LBH420.2LBH420.3
distance from star:2515*106 km3773*106 km5660*106 km
radius:65927 km30662 km21939 km
mass:2292344*1021 kg230617*1021 kg84477*1021 kg
surface gravity: 35.2 m/s2
3.59 Earths
16.3 m/s2
1.66 Earths
11.7 m/s2
1.19 Earths
escape velocity:68.12 km/s31.68 km/s22.67 km/s
year: 637208 LBH420.1 days
79651 Earth days
1170624 LBH420.2 days
146328 Earth days
2150584 LBH420.3 days
268823 Earth days
day:3 hrs3 hrs3 hrs
axial tilt:84°
temperature:1468 K
1195 C
1821 K
1548 C
1099 K
826 C
atmosphere:81% H2
19% He
0% other
84% H2
16% He
0% other
100% H2
0% other
moons:35107165
rings:1433

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