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LKH575: red dwarf star with 4 planets

  LKH575.1   LKH575.2  
LKH575.3
 
LKH575.4
 

Solar system 'LKH575' comprises the star 'LKH575' and the retinue of celestial objects gravitationally bound to it: 4 planets and their 204 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'LKH575', a red dwarf class star that contains about 99.47% of the system's known mass and dominates it gravitationally. LKH575 is located more than 2585 lightyears from the center of the galaxy.

This solar system comprises 4 planets

LKH575.1 is a small terrestrial planet (4894 km radius) which orbits its star in 183 Earth days, one day on LKH575.1 lasts 14 Earth hours. Its average temperature is 94 K (-179 C), its atmosphere mainly consists of nitrogen, oxygen and it has 4 moons.
LKH575.2 is a small terrestrial planet (3398 km radius) which orbits its star in 378 Earth days, one day on LKH575.2 lasts 25 Earth hours. Its average temperature is 72 K (-201 C), its atmosphere mainly consists of nitrogen, oxygen and it has 2 moons.
LKH575.3 is a very large terrestrial planet (10125 km radius) which orbits its star in 5663 Earth days, one day on LKH575.3 lasts 6 Earth hours. Its average temperature is 1471 K (1198 C), its atmosphere mainly consists of hydrogen, helium and it has 110 moons.
LKH575.4 is a large gas giant (48203 km radius) which orbits its star in 16915 Earth days, one day on LKH575.4 lasts 4 Earth hours. Its average temperature is 1000 K (727 C), its atmosphere mainly consists of hydrogen and it has 88 moons.
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Planetary Orbits

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Planetary Statistics

planet:LKH575.1LKH575.2LKH575.3LKH575.4
distance from star:43*106 km71*106 km431*106 km895*106 km
radius:4894 km3398 km10125 km48203 km
mass:937*1021 kg313*1021 kg8303*1021 kg896008*1021 kg
surface gravity: 2.61 m/s2
0.26 Earths
1.80 m/s2
0.18 Earths
5.40 m/s2
0.55 Earths
25.7 m/s2
2.62 Earths
escape velocity:5.055 km/s3.506 km/s10.46 km/s49.81 km/s
year: 313 LKH575.1 days
183 Earth days
362 LKH575.2 days
378 Earth days
22652 LKH575.3 days
5663 Earth days
101490 LKH575.4 days
16915 Earth days
day:14 hrs25 hrs6 hrs4 hrs
axial tilt:74°10°
temperature:94 K
-179 C
72 K
-201 C
1471 K
1198 C
1000 K
727 C
atmosphere:4% H2
1% He
62% N2
32% O2
1% CO2
0% other
75% N2
23% O2
2% CO2
0% other
79% H2
21% He
0% other
100% H2
0% other
moons:4211088
rings:001417

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