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LAC731: red dwarf star with 12 planets

  LAC731.1  
LAC731.2
  LAC731.3   LAC731.4  
LAC731.5
  LAC731.6   LAC731.7   LAC731.8  
LAC731.9
 
LAC731.10
 
LAC731.11
  LAC731.12  

Solar system 'LAC731' comprises the star 'LAC731' and the retinue of celestial objects gravitationally bound to it: 12 planets and their 558 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'LAC731', a red dwarf class star that contains about 98.33% of the system's known mass and dominates it gravitationally. LAC731 is located more than 4299 lightyears from the center of the galaxy.

This solar system comprises 12 planets

LAC731.1 is a very small terrestrial planet (2718 km radius) which orbits its star in 4 Earth days, one day on LAC731.1 lasts 45 Earth hours. Its average temperature is 1664 K (1391 C), its atmosphere mainly consists of nitrogen and it has 0 moons.
LAC731.2 is a very large terrestrial planet (10538 km radius) which orbits its star in 583 Earth days, one day on LAC731.2 lasts 14 Earth hours. Its average temperature is 76 K (-197 C), its atmosphere mainly consists of nitrogen, oxygen and it has 35 moons.
LAC731.3 is a medium terrestrial planet (5201 km radius) which orbits its star in 1071 Earth days, one day on LAC731.3 lasts 21 Earth hours. Its average temperature is 50 K (-223 C), its atmosphere mainly consists of nitrogen, oxygen and it has 10 moons.
LAC731.4 is a small terrestrial planet (3739 km radius) which orbits its star in 1968 Earth days, one day on LAC731.4 lasts 29 Earth hours. Its average temperature is 30 K (-243 C), its atmosphere mainly consists of nitrogen, oxygen and it has 4 moons.
LAC731.5 is a very small terrestrial planet (2218 km radius) which orbits its star in 3617 Earth days, one day on LAC731.5 lasts 62 Earth hours. Its average temperature is 16 K (-257 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
LAC731.6 is a very large terrestrial planet (11923 km radius) which orbits its star in 6644 Earth days, one day on LAC731.6 lasts 13 Earth hours. Its average temperature is 8 K (-265 C), its atmosphere mainly consists of nitrogen, carbon dioxide and it has 22 moons.
LAC731.7 is a large terrestrial planet (8473 km radius) which orbits its star in 12207 Earth days, one day on LAC731.7 lasts 15 Earth hours. Its average temperature is 4 K (-269 C), its atmosphere mainly consists of nitrogen, carbon dioxide and it has 37 moons.
LAC731.8 is a very small terrestrial planet (2404 km radius) which orbits its star in 22426 Earth days, one day on LAC731.8 lasts 55 Earth hours. Its average temperature is 2 K (-271 C), its atmosphere mainly consists of nitrogen, oxygen and it has 6 moons.
LAC731.9 is a large terrestrial planet (7861 km radius) which orbits its star in 41200 Earth days, one day on LAC731.9 lasts 16 Earth hours. Its average temperature is 1933 K (1660 C), its atmosphere mainly consists of hydrogen, helium and it has 135 moons.
LAC731.10 is a large gas giant (71846 km radius) which orbits its star in 170775 Earth days, one day on LAC731.10 lasts 12 Earth hours. Its average temperature is 1174 K (901 C), its atmosphere mainly consists of hydrogen, helium and it has 180 moons.
LAC731.11 is a large gas giant (66989 km radius) which orbits its star in 348240 Earth days, one day on LAC731.11 lasts 12 Earth hours. Its average temperature is 1359 K (1086 C), its atmosphere mainly consists of hydrogen and it has 95 moons.
LAC731.12 is a large terrestrial planet (8710 km radius) which orbits its star in 457774 Earth days, one day on LAC731.12 lasts 15 Earth hours. Its average temperature is 1720 K (1447 C), its atmosphere mainly consists of and it has 34 moons.
More planetary details...

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Planetary Orbits

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Planetary Statistics

planet:LAC731.1LAC731.2LAC731.3LAC731.4LAC731.5
distance from star:3*106 km94*106 km142*106 km213*106 km320*106 km
radius:2718 km10538 km5201 km3739 km2218 km
mass:160*1021 kg9361*1021 kg1125*1021 kg418*1021 kg87*1021 kg
surface gravity: 1.44 m/s2
0.14 Earths
5.62 m/s2
0.57 Earths
2.77 m/s2
0.28 Earths
1.99 m/s2
0.20 Earths
1.18 m/s2
0.12 Earths
escape velocity:2.803 km/s10.88 km/s5.373 km/s3.863 km/s2.288 km/s
year: 2 LAC731.1 days
4 Earth days
999 LAC731.2 days
583 Earth days
1224 LAC731.3 days
1071 Earth days
1628 LAC731.4 days
1968 Earth days
1400 LAC731.5 days
3617 Earth days
day:45 hrs14 hrs21 hrs29 hrs62 hrs
axial tilt:17°25°27°
temperature:1664 K
1391 C
76 K
-197 C
50 K
-223 C
30 K
-243 C
16 K
-257 C
atmosphere:91% N2
5% O2
4% CO2
0% other
83% N2
16% O2
1% CO2
0% other
76% N2
23% O2
1% CO2
0% other
83% N2
15% O2
2% CO2
0% other
1% H2
1% He
82% N2
15% O2
1% CO2
0% other
moons:0351040
rings:01005

planet:LAC731.6LAC731.7LAC731.8LAC731.9LAC731.10
distance from star:480*106 km720*106 km1080*106 km1621*106 km4183*106 km
radius:11923 km8473 km2404 km7861 km71846 km
mass:13559*1021 kg4866*1021 kg111*1021 kg3886*1021 kg2966864*1021 kg
surface gravity: 6.36 m/s2
0.65 Earths
4.52 m/s2
0.46 Earths
1.28 m/s2
0.13 Earths
4.19 m/s2
0.42 Earths
38.3 m/s2
3.91 Earths
escape velocity:12.32 km/s8.755 km/s2.482 km/s8.123 km/s74.24 km/s
year: 12265 LAC731.6 days
6644 Earth days
19531 LAC731.7 days
12207 Earth days
9785 LAC731.8 days
22426 Earth days
61800 LAC731.9 days
41200 Earth days
341550 LAC731.10 days
170775 Earth days
day:13 hrs15 hrs55 hrs16 hrs12 hrs
axial tilt:24°21°11°
temperature:8 K
-265 C
4 K
-269 C
2 K
-271 C
1933 K
1660 C
1174 K
901 C
atmosphere:73% N2
3% O2
24% CO2
0% other
82% N2
1% O2
17% CO2
0% other
84% N2
11% O2
5% CO2
0% other
77% H2
23% He
0% other
85% H2
15% He
0% other
moons:22376135180
rings:000620

planet:LAC731.11LAC731.12
distance from star:6726*106 km8072*106 km
radius:66989 km8710 km
mass:2404919*1021 kg5286*1021 kg
surface gravity: 35.7 m/s2
3.65 Earths
4.65 m/s2
0.47 Earths
escape velocity:69.22 km/s9.000 km/s
year: 696480 LAC731.11 days
348240 Earth days
732438 LAC731.12 days
457774 Earth days
day:12 hrs15 hrs
axial tilt:24°
temperature:1359 K
1086 C
1720 K
1447 C
atmosphere:95% H2
5% He
0% other
100% other
moons:9534
rings:130

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