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LHD999: red dwarf star with 8 planets

  LHD999.1   LHD999.2  
LHD999.3
  LHD999.4   LHD999.5  
LHD999.6
 
LHD999.7
 
LHD999.8
 

Solar system 'LHD999' comprises the star 'LHD999' and the retinue of celestial objects gravitationally bound to it: 8 planets and their 454 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'LHD999', a red dwarf class star that contains about 99.62% of the system's known mass and dominates it gravitationally. LHD999 is located more than 2064 lightyears from the center of the galaxy.

This solar system comprises 8 planets

LHD999.1 is a very large terrestrial planet (10162 km radius) which orbits its star in 18 Earth days, one day on LHD999.1 lasts 10 Earth hours. Its average temperature is 1774 K (1501 C), its atmosphere mainly consists of nitrogen, oxygen and it has 3 moons.
LHD999.2 is a large terrestrial planet (8798 km radius) which orbits its star in 217 Earth days, one day on LHD999.2 lasts 11 Earth hours. Its average temperature is 542 K (269 C), its atmosphere mainly consists of nitrogen, oxygen and it has 11 moons.
LHD999.3 is a medium terrestrial planet (5633 km radius) which orbits its star in 399 Earth days, one day on LHD999.3 lasts 15 Earth hours. Its average temperature is 361 K (88 C), its atmosphere mainly consists of nitrogen, oxygen and it has 8 moons.
LHD999.4 is a very large terrestrial planet (9770 km radius) which orbits its star in 734 Earth days, one day on LHD999.4 lasts 10 Earth hours. Its average temperature is 214 K (-59 C), its atmosphere mainly consists of nitrogen, oxygen and it has 34 moons.
LHD999.5 is a very large terrestrial planet (9525 km radius) which orbits its star in 1349 Earth days, one day on LHD999.5 lasts 10 Earth hours. Its average temperature is 119 K (-154 C), its atmosphere mainly consists of nitrogen, oxygen and it has 42 moons.
LHD999.6 is a medium gas giant (30115 km radius) which orbits its star in 9023 Earth days, one day on LHD999.6 lasts 8 Earth hours. Its average temperature is 1439 K (1166 C), its atmosphere mainly consists of hydrogen and it has 99 moons.
LHD999.7 is a large gas giant (50072 km radius) which orbits its star in 63738 Earth days, one day on LHD999.7 lasts 8 Earth hours. Its average temperature is 1032 K (759 C), its atmosphere mainly consists of hydrogen and it has 114 moons.
LHD999.8 is a large gas giant (50389 km radius) which orbits its star in 189516 Earth days, one day on LHD999.8 lasts 8 Earth hours. Its average temperature is 1124 K (851 C), its atmosphere mainly consists of hydrogen and it has 143 moons.
More planetary details...

Location

Planetary Orbits

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Planetary Statistics

planet:LHD999.1LHD999.2LHD999.3LHD999.4LHD999.5
distance from star:9*106 km49*106 km73*106 km110*106 km165*106 km
radius:10162 km8798 km5633 km9770 km9525 km
mass:8395*1021 kg5448*1021 kg1429*1021 kg7460*1021 kg6913*1021 kg
surface gravity: 5.42 m/s2
0.55 Earths
4.69 m/s2
0.47 Earths
3.00 m/s2
0.30 Earths
5.21 m/s2
0.53 Earths
5.08 m/s2
0.51 Earths
escape velocity:10.50 km/s9.091 km/s5.819 km/s10.09 km/s9.842 km/s
year: 43 LHD999.1 days
18 Earth days
473 LHD999.2 days
217 Earth days
638 LHD999.3 days
399 Earth days
1761 LHD999.4 days
734 Earth days
3237 LHD999.5 days
1349 Earth days
day:10 hrs11 hrs15 hrs10 hrs10 hrs
axial tilt:13°10°
temperature:1774 K
1501 C
542 K
269 C
361 K
88 C
214 K
-59 C
119 K
-154 C
atmosphere:51% N2
49% O2
0% other
8% H2
2% He
44% N2
45% O2
1% CO2
0% other
80% N2
18% O2
2% CO2
0% other
50% N2
49% O2
1% CO2
0% other
7% H2
1% He
48% N2
44% O2
0% other
moons:31183442
rings:00400

planet:LHD999.6LHD999.7LHD999.8
distance from star:589*106 km2168*106 km4483*106 km
radius:30115 km50072 km50389 km
mass:218493*1021 kg1004326*1021 kg1023522*1021 kg
surface gravity: 16.0 m/s2
1.63 Earths
26.7 m/s2
2.73 Earths
26.9 m/s2
2.75 Earths
escape velocity:31.12 km/s51.74 km/s52.07 km/s
year: 27069 LHD999.6 days
9023 Earth days
191214 LHD999.7 days
63738 Earth days
568548 LHD999.8 days
189516 Earth days
day:8 hrs8 hrs8 hrs
axial tilt:
temperature:1439 K
1166 C
1032 K
759 C
1124 K
851 C
atmosphere:94% H2
6% He
0% other
93% H2
7% He
0% other
100% H2
0% other
moons:99114143
rings:592

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