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LCB821: red giant star with 3 planets

  LCB821.1   LCB821.2  
LCB821.3
 

Solar system 'LCB821' is a dual star system that comprises the stars 'LCB821.A' and 'LCB821.B' and the retinue of celestial objects gravitationally bound to them: 3 planets and their 69 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal components of this star system are the stars 'LCB821.A' and 'LCB821.B' that dominate it gravitationally. 'LCB821.A' is a red giant class star that contains about 77% of the system's known mass, 'LCB821.B' is a red giant class star that contains about 22% of the system's known mass.

System 'LCB821' is located more than 5108 lightyears from the center of the galaxy.

This solar system comprises 3 planets

LCB821.1 is a large terrestrial planet (7286 km radius) which orbits its star in 309 Earth days, one day on LCB821.1 lasts 7 Earth hours. Its average temperature is 1948 K (1675 C), its atmosphere mainly consists of nitrogen, carbon dioxide and it has 19 moons.
LCB821.2 is a small terrestrial planet (4426 km radius) which orbits its star in 568 Earth days, one day on LCB821.2 lasts 15 Earth hours. Its average temperature is 1732 K (1459 C), its atmosphere mainly consists of nitrogen and it has 3 moons.
LCB821.3 is a large gas giant (63114 km radius) which orbits its star in 12316 Earth days, one day on LCB821.3 lasts 3 Earth hours. Its average temperature is 1757 K (1484 C), its atmosphere mainly consists of hydrogen and it has 47 moons.
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Planetary Orbits

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Planetary Statistics

planet:LCB821.1LCB821.2LCB821.3
distance from star:62*106 km93*106 km724*106 km
radius:7286 km4426 km63114 km
mass:3094*1021 kg693*1021 kg2011254*1021 kg
surface gravity: 3.88 m/s2
0.39 Earths
2.36 m/s2
0.24 Earths
33.6 m/s2
3.43 Earths
escape velocity:7.528 km/s4.571 km/s65.22 km/s
year: 1059 LCB821.1 days
309 Earth days
908 LCB821.2 days
568 Earth days
98528 LCB821.3 days
12316 Earth days
day:7 hrs15 hrs3 hrs
axial tilt:12°63°
temperature:1948 K
1675 C
1732 K
1459 C
1757 K
1484 C
atmosphere:30% N2
70% CO2
0% other
82% N2
10% O2
8% CO2
0% other
99% H2
1% He
0% other
moons:19347
rings:0020

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