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LKH577: red dwarf star with 8 planets

  LKH577.1   LKH577.2   LKH577.3   LKH577.4   LKH577.5  
LKH577.6
  LKH577.7   LKH577.8  

Solar system 'LKH577' comprises the star 'LKH577' and the retinue of celestial objects gravitationally bound to it: 8 planets and their 280 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'LKH577', a red dwarf class star that contains about 99.13% of the system's known mass and dominates it gravitationally. LKH577 is located more than 2585 lightyears from the center of the galaxy.

LKH577.3, the third planet in this system, may feature life forms. Its average temperature is 258K (-15C) and it's atmosphere contains 7% of oxygen. One year on LKH577.3 lasts 636 days, one day lasts 13 hours. It's diameter is 13840 km, 1 times the diameter of the Earth.

This solar system comprises 8 planets

LKH577.1 is a small terrestrial planet (4952 km radius) which orbits its star in 188 Earth days, one day on LKH577.1 lasts 18 Earth hours. Its average temperature is 436 K (163 C), its atmosphere mainly consists of nitrogen, carbon dioxide and it has 0 moons.
LKH577.2 is a very small terrestrial planet (2350 km radius) which orbits its star in 346 Earth days, one day on LKH577.2 lasts 53 Earth hours. Its average temperature is 387 K (114 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
LKH577.3 is a medium terrestrial planet (6920 km radius) which orbits its star in 636 Earth days, one day on LKH577.3 lasts 13 Earth hours. Its average temperature is 258 K (-15 C), its atmosphere mainly consists of nitrogen, carbon dioxide and it has 8 moons.
LKH577.4 is a medium terrestrial planet (6547 km radius) which orbits its star in 1168 Earth days, one day on LKH577.4 lasts 13 Earth hours. Its average temperature is 153 K (-120 C), its atmosphere mainly consists of nitrogen, oxygen and it has 20 moons.
LKH577.5 is a small terrestrial planet (4690 km radius) which orbits its star in 2147 Earth days, one day on LKH577.5 lasts 19 Earth hours. Its average temperature is 85 K (-188 C), its atmosphere mainly consists of hydrogen, nitrogen, oxygen and it has 1 moons.
LKH577.6 is a large gas giant (72935 km radius) which orbits its star in 100837 Earth days, one day on LKH577.6 lasts 8 Earth hours. Its average temperature is 1851 K (1578 C), its atmosphere mainly consists of hydrogen, helium and it has 151 moons.
LKH577.7 is a large gas giant (79005 km radius) which orbits its star in 185250 Earth days, one day on LKH577.7 lasts 8 Earth hours. Its average temperature is 1061 K (788 C), its atmosphere mainly consists of hydrogen, helium and it has 63 moons.
LKH577.8 is a small terrestrial planet (4100 km radius) which orbits its star in 243517 Earth days, one day on LKH577.8 lasts 22 Earth hours. Its average temperature is 1850 K (1577 C), its atmosphere mainly consists of and it has 37 moons.
More planetary details...

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Planetary Orbits

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Planetary Statistics

planet:LKH577.1LKH577.2LKH577.3LKH577.4LKH577.5
distance from star:44*106 km67*106 km100*106 km150*106 km226*106 km
radius:4952 km2350 km6920 km6547 km4690 km
mass:971*1021 kg103*1021 kg2650*1021 kg2245*1021 kg825*1021 kg
surface gravity: 2.64 m/s2
0.26 Earths
1.24 m/s2
0.12 Earths
3.69 m/s2
0.37 Earths
3.49 m/s2
0.35 Earths
2.50 m/s2
0.25 Earths
escape velocity:5.116 km/s2.418 km/s7.149 km/s6.765 km/s4.845 km/s
year: 250 LKH577.1 days
188 Earth days
156 LKH577.2 days
346 Earth days
1174 LKH577.3 days
636 Earth days
2156 LKH577.4 days
1168 Earth days
2712 LKH577.5 days
2147 Earth days
day:18 hrs53 hrs13 hrs13 hrs19 hrs
axial tilt:12°199°10°14°
temperature:436 K
163 C
387 K
114 C
258 K
-15 C
153 K
-120 C
85 K
-188 C
atmosphere:82% N2
5% O2
13% CO2
0% other
79% N2
21% O2
0% other
82% N2
7% O2
11% CO2
0% other
5% H2
1% He
63% N2
29% O2
2% CO2
0% other
11% H2
2% He
42% N2
44% O2
1% CO2
0% other
moons:008201
rings:00000

planet:LKH577.6LKH577.7LKH577.8
distance from star:2944*106 km4416*106 km5299*106 km
radius:72935 km79005 km4100 km
mass:3103830*1021 kg3945060*1021 kg551*1021 kg
surface gravity: 38.9 m/s2
3.97 Earths
42.1 m/s2
4.30 Earths
2.18 m/s2
0.22 Earths
escape velocity:75.36 km/s81.64 km/s4.235 km/s
year: 302511 LKH577.6 days
100837 Earth days
555750 LKH577.7 days
185250 Earth days
265654 LKH577.8 days
243517 Earth days
day:8 hrs8 hrs22 hrs
axial tilt:88°
temperature:1851 K
1578 C
1061 K
788 C
1850 K
1577 C
atmosphere:78% H2
22% He
0% other
76% H2
24% He
0% other
100% other
moons:1516337
rings:1700

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