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LJD309: red dwarf star with 8 planets

  LJD309.1   LJD309.2   LJD309.3   LJD309.4  
LJD309.5
 
LJD309.6
  LJD309.7   LJD309.8  

Solar system 'LJD309' comprises the star 'LJD309' and the retinue of celestial objects gravitationally bound to it: 8 planets and their 440 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'LJD309', a red dwarf class star that contains about 99.26% of the system's known mass and dominates it gravitationally. LJD309 is located more than 3672 lightyears from the center of the galaxy.

This solar system comprises 8 planets

LJD309.1 is a very small terrestrial planet (2496 km radius) which orbits its star in 63 Earth days, one day on LJD309.1 lasts 48 Earth hours. Its average temperature is 1150 K (877 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
LJD309.2 is a small terrestrial planet (4397 km radius) which orbits its star in 189 Earth days, one day on LJD309.2 lasts 20 Earth hours. Its average temperature is 1072 K (799 C), its atmosphere mainly consists of nitrogen, oxygen and it has 2 moons.
LJD309.3 is a very large terrestrial planet (11698 km radius) which orbits its star in 347 Earth days, one day on LJD309.3 lasts 9 Earth hours. Its average temperature is 715 K (442 C), its atmosphere mainly consists of nitrogen, oxygen and it has 1 moons.
LJD309.4 is a large gas giant (75424 km radius) which orbits its star in 8577 Earth days, one day on LJD309.4 lasts 8 Earth hours. Its average temperature is 1810 K (1537 C), its atmosphere mainly consists of hydrogen, helium and it has 100 moons.
LJD309.5 is a large gas giant (52320 km radius) which orbits its star in 15757 Earth days, one day on LJD309.5 lasts 8 Earth hours. Its average temperature is 1635 K (1362 C), its atmosphere mainly consists of hydrogen, helium and it has 99 moons.
LJD309.6 is a medium gas giant (25773 km radius) which orbits its star in 28947 Earth days, one day on LJD309.6 lasts 8 Earth hours. Its average temperature is 1392 K (1119 C), its atmosphere mainly consists of hydrogen, helium and it has 70 moons.
LJD309.7 is a large gas giant (69071 km radius) which orbits its star in 168435 Earth days, one day on LJD309.7 lasts 8 Earth hours. Its average temperature is 1221 K (948 C), its atmosphere mainly consists of hydrogen and it has 164 moons.
LJD309.8 is a small terrestrial planetoid (1829 km radius) which orbits its star in 221413 Earth days, one day on LJD309.8 lasts 84 Earth hours. Its average temperature is 1287 K (1014 C), its atmosphere mainly consists of and it has 4 moons.
More planetary details...

Location

Planetary Orbits

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Planetary Statistics

planet:LJD309.1LJD309.2LJD309.3LJD309.4LJD309.5
distance from star:21*106 km44*106 km67*106 km569*106 km854*106 km
radius:2496 km4397 km11698 km75424 km52320 km
mass:124*1021 kg680*1021 kg12806*1021 kg3432564*1021 kg1145758*1021 kg
surface gravity: 1.32 m/s2
0.13 Earths
2.34 m/s2
0.23 Earths
6.24 m/s2
0.63 Earths
40.2 m/s2
4.11 Earths
27.9 m/s2
2.85 Earths
escape velocity:2.575 km/s4.543 km/s12.08 km/s77.94 km/s54.06 km/s
year: 31 LJD309.1 days
63 Earth days
226 LJD309.2 days
189 Earth days
925 LJD309.3 days
347 Earth days
25731 LJD309.4 days
8577 Earth days
47271 LJD309.5 days
15757 Earth days
day:48 hrs20 hrs9 hrs8 hrs8 hrs
axial tilt:337°262°
temperature:1150 K
877 C
1072 K
799 C
715 K
442 C
1810 K
1537 C
1635 K
1362 C
atmosphere:2% H2
1% He
81% N2
16% O2
0% other
76% N2
20% O2
4% CO2
0% other
85% N2
13% O2
2% CO2
0% other
89% H2
11% He
0% other
87% H2
13% He
0% other
moons:02110099
rings:000011

planet:LJD309.6LJD309.7LJD309.8
distance from star:1281*106 km4144*106 km4973*106 km
radius:25773 km69071 km1829 km
mass:136957*1021 kg2636193*1021 kg48*1021 kg
surface gravity: 13.7 m/s2
1.40 Earths
36.8 m/s2
3.76 Earths
0.95 m/s2
0.09 Earths
escape velocity:26.63 km/s71.37 km/s1.871 km/s
year: 86841 LJD309.6 days
28947 Earth days
505305 LJD309.7 days
168435 Earth days
63260 LJD309.8 days
221413 Earth days
day:8 hrs8 hrs84 hrs
axial tilt:14°
temperature:1392 K
1119 C
1221 K
948 C
1287 K
1014 C
atmosphere:83% H2
17% He
0% other
91% H2
9% He
0% other
100% other
moons:701644
rings:1900

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