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LBB721: red dwarf star with 2 planets

 
LBB721.1
  LBB721.2  

Solar system 'LBB721' comprises the star 'LBB721' and the retinue of celestial objects gravitationally bound to it: 2 planets and their 30 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'LBB721', a red dwarf class star that contains about 99.99% of the system's known mass and dominates it gravitationally. LBB721 is located more than 5018 lightyears from the center of the galaxy.

This solar system comprises 2 planets

LBB721.1 is a small terrestrial planet (4136 km radius) which orbits its star in 93 Earth days, one day on LBB721.1 lasts 16 Earth hours. Its average temperature is 1325 K (1052 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
LBB721.2 is a very large terrestrial planet (9780 km radius) which orbits its star in 229 Earth days, one day on LBB721.2 lasts 4 Earth hours. Its average temperature is 803 K (530 C), its atmosphere mainly consists of nitrogen, oxygen and it has 30 moons.
More planetary details...

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Planetary Orbits

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Planetary Statistics

planet:LBB721.1LBB721.2
distance from star:28*106 km50*106 km
radius:4136 km9780 km
mass:566*1021 kg7483*1021 kg
surface gravity: 2.20 m/s2
0.22 Earths
5.22 m/s2
0.53 Earths
escape velocity:4.274 km/s10.10 km/s
year: 139 LBB721.1 days
93 Earth days
1374 LBB721.2 days
229 Earth days
day:16 hrs4 hrs
axial tilt:27°26°
temperature:1325 K
1052 C
803 K
530 C
atmosphere:81% N2
17% O2
2% CO2
0% other
3% H2
3% He
52% N2
42% O2
0% other
moons:030
rings:60

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