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LJH722: red dwarf star with 8 planets

  LJH722.1   LJH722.2   LJH722.3  
LJH722.4
 
LJH722.5
 
LJH722.6
 
LJH722.7
 
LJH722.8
 

Solar system 'LJH722' comprises the star 'LJH722' and the retinue of celestial objects gravitationally bound to it: 8 planets and their 481 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'LJH722', a red dwarf class star that contains about 97.72% of the system's known mass and dominates it gravitationally. LJH722 is located more than 2031 lightyears from the center of the galaxy.

This solar system comprises 8 planets

LJH722.1 is a small terrestrial planet (3789 km radius) which orbits its star in 62 Earth days, one day on LJH722.1 lasts 25 Earth hours. Its average temperature is 441 K (168 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
LJH722.2 is a large terrestrial planet (8682 km radius) which orbits its star in 297 Earth days, one day on LJH722.2 lasts 11 Earth hours. Its average temperature is 111 K (-162 C), its atmosphere mainly consists of nitrogen, carbon dioxide and it has 21 moons.
LJH722.3 is a very small terrestrial planet (2418 km radius) which orbits its star in 547 Earth days, one day on LJH722.3 lasts 50 Earth hours. Its average temperature is 74 K (-199 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
LJH722.4 is a small terrestrial planet (3738 km radius) which orbits its star in 1005 Earth days, one day on LJH722.4 lasts 25 Earth hours. Its average temperature is 43 K (-230 C), its atmosphere mainly consists of nitrogen, carbon dioxide and it has 2 moons.
LJH722.5 is a large gas giant (45888 km radius) which orbits its star in 1847 Earth days, one day on LJH722.5 lasts 8 Earth hours. Its average temperature is 1137 K (864 C), its atmosphere mainly consists of hydrogen and it has 139 moons.
LJH722.6 is a large gas giant (68792 km radius) which orbits its star in 118590 Earth days, one day on LJH722.6 lasts 8 Earth hours. Its average temperature is 1470 K (1197 C), its atmosphere mainly consists of hydrogen, helium and it has 98 moons.
LJH722.7 is a large gas giant (44380 km radius) which orbits its star in 217863 Earth days, one day on LJH722.7 lasts 8 Earth hours. Its average temperature is 1506 K (1233 C), its atmosphere mainly consists of hydrogen, helium and it has 113 moons.
LJH722.8 is a medium gas giant (34745 km radius) which orbits its star in 400241 Earth days, one day on LJH722.8 lasts 8 Earth hours. Its average temperature is 1565 K (1292 C), its atmosphere mainly consists of hydrogen and it has 108 moons.
More planetary details...

Location

Planetary Orbits

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Planetary Statistics

planet:LJH722.1LJH722.2LJH722.3LJH722.4LJH722.5
distance from star:21*106 km60*106 km90*106 km136*106 km204*106 km
radius:3789 km8682 km2418 km3738 km45888 km
mass:435*1021 kg5235*1021 kg113*1021 kg417*1021 kg773014*1021 kg
surface gravity: 2.02 m/s2
0.20 Earths
4.63 m/s2
0.47 Earths
1.28 m/s2
0.13 Earths
1.99 m/s2
0.20 Earths
24.5 m/s2
2.50 Earths
escape velocity:3.914 km/s8.971 km/s2.497 km/s3.858 km/s47.41 km/s
year: 59 LJH722.1 days
62 Earth days
648 LJH722.2 days
297 Earth days
262 LJH722.3 days
547 Earth days
964 LJH722.4 days
1005 Earth days
5541 LJH722.5 days
1847 Earth days
day:25 hrs11 hrs50 hrs25 hrs8 hrs
axial tilt:200°27°359°
temperature:441 K
168 C
111 K
-162 C
74 K
-199 C
43 K
-230 C
1137 K
864 C
atmosphere:3% H2
1% He
71% N2
24% O2
1% CO2
0% other
83% N2
5% O2
12% CO2
0% other
1% H2
2% He
53% N2
44% O2
0% other
76% N2
1% O2
23% CO2
0% other
93% H2
7% He
0% other
moons:02102139
rings:000418

planet:LJH722.6LJH722.7LJH722.8
distance from star:3280*106 km4920*106 km7380*106 km
radius:68792 km44380 km34745 km
mass:2604376*1021 kg699281*1021 kg335557*1021 kg
surface gravity: 36.7 m/s2
3.75 Earths
23.6 m/s2
2.41 Earths
18.5 m/s2
1.89 Earths
escape velocity:71.08 km/s45.86 km/s35.90 km/s
year: 355770 LJH722.6 days
118590 Earth days
653589 LJH722.7 days
217863 Earth days
1200723 LJH722.8 days
400241 Earth days
day:8 hrs8 hrs8 hrs
axial tilt:71°
temperature:1470 K
1197 C
1506 K
1233 C
1565 K
1292 C
atmosphere:82% H2
18% He
0% other
79% H2
21% He
0% other
90% H2
10% He
0% other
moons:98113108
rings:876

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