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LHH121: red dwarf star with 8 planets

  LHH121.1   LHH121.2   LHH121.3  
LHH121.4
 
LHH121.5
 
LHH121.6
 
LHH121.7
  LHH121.8  

Solar system 'LHH121' comprises the star 'LHH121' and the retinue of celestial objects gravitationally bound to it: 8 planets and their 479 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'LHH121', a red dwarf class star that contains about 99.77% of the system's known mass and dominates it gravitationally. LHH121 is located more than 3064 lightyears from the center of the galaxy.

This solar system comprises 8 planets

LHH121.1 is a very large terrestrial planet (11976 km radius) which orbits its star in 745 Earth days, one day on LHH121.1 lasts 9 Earth hours. Its average temperature is 63 K (-210 C), its atmosphere mainly consists of hydrogen, nitrogen, oxygen and it has 42 moons.
LHH121.2 is a very large terrestrial planet (9789 km radius) which orbits its star in 1639 Earth days, one day on LHH121.2 lasts 10 Earth hours. Its average temperature is 44 K (-229 C), its atmosphere mainly consists of nitrogen, oxygen and it has 7 moons.
LHH121.3 is a large terrestrial planet (8390 km radius) which orbits its star in 3011 Earth days, one day on LHH121.3 lasts 11 Earth hours. Its average temperature is 29 K (-244 C), its atmosphere mainly consists of nitrogen, oxygen and it has 40 moons.
LHH121.4 is a medium terrestrial planet (6979 km radius) which orbits its star in 5532 Earth days, one day on LHH121.4 lasts 13 Earth hours. Its average temperature is 17 K (-256 C), its atmosphere mainly consists of nitrogen, oxygen and it has 18 moons.
LHH121.5 is a medium gas giant (39344 km radius) which orbits its star in 17042 Earth days, one day on LHH121.5 lasts 8 Earth hours. Its average temperature is 1727 K (1454 C), its atmosphere mainly consists of hydrogen and it has 104 moons.
LHH121.6 is a medium gas giant (26836 km radius) which orbits its star in 31309 Earth days, one day on LHH121.6 lasts 8 Earth hours. Its average temperature is 1357 K (1084 C), its atmosphere mainly consists of hydrogen, helium and it has 95 moons.
LHH121.7 is a medium gas giant (20143 km radius) which orbits its star in 60417 Earth days, one day on LHH121.7 lasts 8 Earth hours. Its average temperature is 1565 K (1292 C), its atmosphere mainly consists of hydrogen, helium and it has 51 moons.
LHH121.8 is a large gas giant (48623 km radius) which orbits its star in 110994 Earth days, one day on LHH121.8 lasts 8 Earth hours. Its average temperature is 1253 K (980 C), its atmosphere mainly consists of hydrogen, helium and it has 122 moons.
More planetary details...

Location

Planetary Orbits

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Planetary Statistics

planet:LHH121.1LHH121.2LHH121.3LHH121.4LHH121.5
distance from star:111*106 km188*106 km283*106 km425*106 km900*106 km
radius:11976 km9789 km8390 km6979 km39344 km
mass:13741*1021 kg7504*1021 kg4724*1021 kg2719*1021 kg487220*1021 kg
surface gravity: 6.39 m/s2
0.65 Earths
5.22 m/s2
0.53 Earths
4.47 m/s2
0.45 Earths
3.72 m/s2
0.38 Earths
21.0 m/s2
2.14 Earths
escape velocity:12.37 km/s10.11 km/s8.669 km/s7.211 km/s40.65 km/s
year: 1986 LHH121.1 days
745 Earth days
3933 LHH121.2 days
1639 Earth days
6569 LHH121.3 days
3011 Earth days
10212 LHH121.4 days
5532 Earth days
51126 LHH121.5 days
17042 Earth days
day:9 hrs10 hrs11 hrs13 hrs8 hrs
axial tilt:357°327°16°32°
temperature:63 K
-210 C
44 K
-229 C
29 K
-244 C
17 K
-256 C
1727 K
1454 C
atmosphere:11% H2
4% He
41% N2
44% O2
0% other
82% N2
17% O2
1% CO2
0% other
78% N2
21% O2
1% CO2
0% other
79% N2
19% O2
2% CO2
0% other
95% H2
5% He
0% other
moons:4274018104
rings:000510

planet:LHH121.6LHH121.7LHH121.8
distance from star:1350*106 km2092*106 km3138*106 km
radius:26836 km20143 km48623 km
mass:154612*1021 kg65382*1021 kg919634*1021 kg
surface gravity: 14.3 m/s2
1.46 Earths
10.7 m/s2
1.09 Earths
25.9 m/s2
2.64 Earths
escape velocity:27.73 km/s20.81 km/s50.24 km/s
year: 93927 LHH121.6 days
31309 Earth days
181251 LHH121.7 days
60417 Earth days
332982 LHH121.8 days
110994 Earth days
day:8 hrs8 hrs8 hrs
axial tilt:
temperature:1357 K
1084 C
1565 K
1292 C
1253 K
980 C
atmosphere:87% H2
13% He
0% other
78% H2
22% He
0% other
76% H2
24% He
0% other
moons:9551122
rings:2130

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