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LAK257: yellow dwarf star with 8 planets

  LAK257.1   LAK257.2   LAK257.3   LAK257.4   LAK257.5  
LAK257.6
 
LAK257.7
  LAK257.8  

Solar system 'LAK257' comprises the star 'LAK257' and the retinue of celestial objects gravitationally bound to it: 8 planets and their 361 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'LAK257', a yellow dwarf class star that contains about 99.96% of the system's known mass and dominates it gravitationally. LAK257 is located more than 5219 lightyears from the center of the galaxy.

This solar system comprises 8 planets

LAK257.1 is a very large terrestrial planet (11223 km radius) which orbits its star in 394 Earth days, one day on LAK257.1 lasts 9 Earth hours. Its average temperature is 378 K (105 C), its atmosphere mainly consists of nitrogen, oxygen and it has 46 moons.
LAK257.2 is a large terrestrial planet (8739 km radius) which orbits its star in 1129 Earth days, one day on LAK257.2 lasts 11 Earth hours. Its average temperature is 186 K (-87 C), its atmosphere mainly consists of nitrogen and it has 28 moons.
LAK257.3 is a very large terrestrial planet (9068 km radius) which orbits its star in 2074 Earth days, one day on LAK257.3 lasts 11 Earth hours. Its average temperature is 124 K (-149 C), its atmosphere mainly consists of nitrogen, oxygen and it has 24 moons.
LAK257.4 is a very small terrestrial planet (2449 km radius) which orbits its star in 3811 Earth days, one day on LAK257.4 lasts 49 Earth hours. Its average temperature is 73 K (-200 C), its atmosphere mainly consists of nitrogen, oxygen and it has 3 moons.
LAK257.5 is a medium terrestrial planet (6965 km radius) which orbits its star in 7002 Earth days, one day on LAK257.5 lasts 13 Earth hours. Its average temperature is 40 K (-233 C), its atmosphere mainly consists of nitrogen, oxygen and it has 44 moons.
LAK257.6 is a medium gas giant (35671 km radius) which orbits its star in 12864 Earth days, one day on LAK257.6 lasts 8 Earth hours. Its average temperature is 1036 K (763 C), its atmosphere mainly consists of hydrogen and it has 68 moons.
LAK257.7 is a medium gas giant (29336 km radius) which orbits its star in 23634 Earth days, one day on LAK257.7 lasts 8 Earth hours. Its average temperature is 1805 K (1532 C), its atmosphere mainly consists of hydrogen and it has 92 moons.
LAK257.8 is a small terrestrial planet (4156 km radius) which orbits its star in 31067 Earth days, one day on LAK257.8 lasts 22 Earth hours. Its average temperature is 1073 K (800 C), its atmosphere mainly consists of and it has 56 moons.
More planetary details...

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Planetary Orbits

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Planetary Statistics

planet:LAK257.1LAK257.2LAK257.3LAK257.4LAK257.5
distance from star:73*106 km147*106 km221*106 km331*106 km497*106 km
radius:11223 km8739 km9068 km2449 km6965 km
mass:11308*1021 kg5339*1021 kg5965*1021 kg117*1021 kg2703*1021 kg
surface gravity: 5.99 m/s2
0.61 Earths
4.66 m/s2
0.47 Earths
4.84 m/s2
0.49 Earths
1.30 m/s2
0.13 Earths
3.71 m/s2
0.37 Earths
escape velocity:11.59 km/s9.030 km/s9.370 km/s2.525 km/s7.197 km/s
year: 1050 LAK257.1 days
394 Earth days
2463 LAK257.2 days
1129 Earth days
4525 LAK257.3 days
2074 Earth days
1866 LAK257.4 days
3811 Earth days
12926 LAK257.5 days
7002 Earth days
day:9 hrs11 hrs11 hrs49 hrs13 hrs
axial tilt:25°26°331°24°22°
temperature:378 K
105 C
186 K
-87 C
124 K
-149 C
73 K
-200 C
40 K
-233 C
atmosphere:1% He
78% N2
17% O2
4% CO2
0% other
93% N2
7% O2
0% other
3% H2
1% He
55% N2
40% O2
1% CO2
0% other
2% H2
1% He
48% N2
48% O2
1% CO2
0% other
4% H2
2% He
62% N2
32% O2
0% other
moons:462824344
rings:00000

planet:LAK257.6LAK257.7LAK257.8
distance from star:746*106 km1119*106 km1343*106 km
radius:35671 km29336 km4156 km
mass:363108*1021 kg201972*1021 kg574*1021 kg
surface gravity: 19.0 m/s2
1.94 Earths
15.6 m/s2
1.59 Earths
2.21 m/s2
0.22 Earths
escape velocity:36.86 km/s30.31 km/s4.293 km/s
year: 38592 LAK257.6 days
12864 Earth days
70902 LAK257.7 days
23634 Earth days
33891 LAK257.8 days
31067 Earth days
day:8 hrs8 hrs22 hrs
axial tilt:65°55°18°
temperature:1036 K
763 C
1805 K
1532 C
1073 K
800 C
atmosphere:97% H2
3% He
0% other
98% H2
2% He
0% other
100% other
moons:689256
rings:17210

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