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LJH757: red dwarf star with 8 planets

  LJH757.1  
LJH757.2
  LJH757.3   LJH757.4   LJH757.5  
LJH757.6
 
LJH757.7
  LJH757.8  

Solar system 'LJH757' comprises the star 'LJH757' and the retinue of celestial objects gravitationally bound to it: 8 planets and their 442 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'LJH757', a red dwarf class star that contains about 99.9% of the system's known mass and dominates it gravitationally. LJH757 is located more than 2031 lightyears from the center of the galaxy.

LJH757.5, the fifth planet in this system, may feature life forms. Its average temperature is 301K (28C) and it's atmosphere contains 31% of oxygen. One year on LJH757.5 lasts 936 days, one day lasts 33 hours. It's diameter is 6312 km, 0.4 times the diameter of the Earth.

This solar system comprises 8 planets

LJH757.1 is a small terrestrial planet (3803 km radius) which orbits its star in 5 Earth days, one day on LJH757.1 lasts 25 Earth hours. Its average temperature is 1913 K (1640 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
LJH757.2 is a medium terrestrial planet (6596 km radius) which orbits its star in 40 Earth days, one day on LJH757.2 lasts 13 Earth hours. Its average temperature is 1000 K (727 C), its atmosphere mainly consists of nitrogen, oxygen and it has 1 moons.
LJH757.3 is a medium terrestrial planet (5807 km radius) which orbits its star in 277 Earth days, one day on LJH757.3 lasts 15 Earth hours. Its average temperature is 916 K (643 C), its atmosphere mainly consists of hydrogen, nitrogen, oxygen and it has 5 moons.
LJH757.4 is a very large terrestrial planet (9725 km radius) which orbits its star in 509 Earth days, one day on LJH757.4 lasts 10 Earth hours. Its average temperature is 543 K (270 C), its atmosphere mainly consists of nitrogen, oxygen and it has 26 moons.
LJH757.5 is a small terrestrial planet (3156 km radius) which orbits its star in 936 Earth days, one day on LJH757.5 lasts 33 Earth hours. Its average temperature is 301 K (28 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
LJH757.6 is a large gas giant (41280 km radius) which orbits its star in 4157 Earth days, one day on LJH757.6 lasts 8 Earth hours. Its average temperature is 1287 K (1014 C), its atmosphere mainly consists of hydrogen and it has 145 moons.
LJH757.7 is a medium gas giant (23332 km radius) which orbits its star in 15829 Earth days, one day on LJH757.7 lasts 8 Earth hours. Its average temperature is 1895 K (1622 C), its atmosphere mainly consists of hydrogen, helium and it has 92 moons.
LJH757.8 is a medium gas giant (29578 km radius) which orbits its star in 29080 Earth days, one day on LJH757.8 lasts 8 Earth hours. Its average temperature is 1793 K (1520 C), its atmosphere mainly consists of hydrogen and it has 173 moons.
More planetary details...

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Planetary Orbits

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Planetary Statistics

planet:LJH757.1LJH757.2LJH757.3LJH757.4LJH757.5
distance from star:4*106 km15*106 km57*106 km86*106 km130*106 km
radius:3803 km6596 km5807 km9725 km3156 km
mass:440*1021 kg2295*1021 kg1566*1021 kg7357*1021 kg251*1021 kg
surface gravity: 2.03 m/s2
0.20 Earths
3.52 m/s2
0.35 Earths
3.09 m/s2
0.31 Earths
5.19 m/s2
0.53 Earths
1.68 m/s2
0.17 Earths
escape velocity:3.929 km/s6.815 km/s5.999 km/s10.04 km/s3.258 km/s
year: 4 LJH757.1 days
5 Earth days
73 LJH757.2 days
40 Earth days
443 LJH757.3 days
277 Earth days
1221 LJH757.4 days
509 Earth days
680 LJH757.5 days
936 Earth days
day:25 hrs13 hrs15 hrs10 hrs33 hrs
axial tilt:10°20°12°312°
temperature:1913 K
1640 C
1000 K
727 C
916 K
643 C
543 K
270 C
301 K
28 C
atmosphere:54% N2
46% O2
0% other
6% H2
1% He
49% N2
44% O2
0% other
14% H2
3% He
40% N2
43% O2
0% other
3% H2
1% He
72% N2
21% O2
3% CO2
0% other
7% H2
3% He
57% N2
31% O2
2% CO2
0% other
moons:015260
rings:05000

planet:LJH757.6LJH757.7LJH757.8
distance from star:351*106 km856*106 km1285*106 km
radius:41280 km23332 km29578 km
mass:562741*1021 kg101612*1021 kg207012*1021 kg
surface gravity: 22.0 m/s2
2.24 Earths
12.4 m/s2
1.26 Earths
15.7 m/s2
1.60 Earths
escape velocity:42.65 km/s24.11 km/s30.56 km/s
year: 12471 LJH757.6 days
4157 Earth days
47487 LJH757.7 days
15829 Earth days
87240 LJH757.8 days
29080 Earth days
day:8 hrs8 hrs8 hrs
axial tilt:43°
temperature:1287 K
1014 C
1895 K
1622 C
1793 K
1520 C
atmosphere:95% H2
5% He
0% other
82% H2
18% He
0% other
94% H2
6% He
0% other
moons:14592173
rings:3100

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