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LBK477: red dwarf star with 7 planets

  LBK477.1  
LBK477.2
  LBK477.3   LBK477.4  
LBK477.5
 
LBK477.6
  LBK477.7  

Solar system 'LBK477' comprises the star 'LBK477' and the retinue of celestial objects gravitationally bound to it: 7 planets and their 338 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'LBK477', a red dwarf class star that contains about 99.44% of the system's known mass and dominates it gravitationally. LBK477 is located more than 5135 lightyears from the center of the galaxy.

LBK477.1, the first planet in this system, may feature life forms. Its average temperature is 307K (34C) and it's atmosphere contains 1% of oxygen. One year on LBK477.1 lasts 205 days, one day lasts 16 hours. It's diameter is 10388 km, 0.8 times the diameter of the Earth.

This solar system comprises 7 planets

LBK477.1 is a medium terrestrial planet (5194 km radius) which orbits its star in 205 Earth days, one day on LBK477.1 lasts 16 Earth hours. Its average temperature is 307 K (34 C), its atmosphere mainly consists of nitrogen, carbon dioxide and it has 5 moons.
LBK477.2 is a medium terrestrial planet (5140 km radius) which orbits its star in 525 Earth days, one day on LBK477.2 lasts 16 Earth hours. Its average temperature is 175 K (-98 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
LBK477.3 is a very large terrestrial planet (9115 km radius) which orbits its star in 1183 Earth days, one day on LBK477.3 lasts 10 Earth hours. Its average temperature is 89 K (-184 C), its atmosphere mainly consists of hydrogen, nitrogen, oxygen and it has 23 moons.
LBK477.4 is a medium terrestrial planet (5998 km radius) which orbits its star in 2174 Earth days, one day on LBK477.4 lasts 13 Earth hours. Its average temperature is 52 K (-221 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
LBK477.5 is a large gas giant (64641 km radius) which orbits its star in 15419 Earth days, one day on LBK477.5 lasts 7 Earth hours. Its average temperature is 1312 K (1039 C), its atmosphere mainly consists of hydrogen and it has 164 moons.
LBK477.6 is a large gas giant (56011 km radius) which orbits its star in 84941 Earth days, one day on LBK477.6 lasts 7 Earth hours. Its average temperature is 1259 K (986 C), its atmosphere mainly consists of hydrogen, helium and it has 97 moons.
LBK477.7 is a small terrestrial planet (4339 km radius) which orbits its star in 111658 Earth days, one day on LBK477.7 lasts 20 Earth hours. Its average temperature is 1505 K (1232 C), its atmosphere mainly consists of and it has 49 moons.
More planetary details...

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Planetary Orbits

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Planetary Statistics

planet:LBK477.1LBK477.2LBK477.3LBK477.4LBK477.5
distance from star:47*106 km88*106 km152*106 km228*106 km841*106 km
radius:5194 km5140 km9115 km5998 km64641 km
mass:1120*1021 kg1086*1021 kg6058*1021 kg1726*1021 kg2160798*1021 kg
surface gravity: 2.77 m/s2
0.28 Earths
2.74 m/s2
0.28 Earths
4.86 m/s2
0.49 Earths
3.20 m/s2
0.32 Earths
34.5 m/s2
3.52 Earths
escape velocity:5.365 km/s5.310 km/s9.418 km/s6.197 km/s66.79 km/s
year: 307 LBK477.1 days
205 Earth days
787 LBK477.2 days
525 Earth days
2839 LBK477.3 days
1183 Earth days
4013 LBK477.4 days
2174 Earth days
52865 LBK477.5 days
15419 Earth days
day:16 hrs16 hrs10 hrs13 hrs7 hrs
axial tilt:24°30°25°208°84°
temperature:307 K
34 C
175 K
-98 C
89 K
-184 C
52 K
-221 C
1312 K
1039 C
atmosphere:59% N2
1% O2
40% CO2
0% other
5% H2
1% He
58% N2
36% O2
0% other
18% H2
3% He
39% N2
38% O2
2% CO2
0% other
5% H2
2% He
66% N2
27% O2
0% other
92% H2
8% He
0% other
moons:50230164
rings:010012

planet:LBK477.6LBK477.7
distance from star:2626*106 km3151*106 km
radius:56011 km4339 km
mass:1405756*1021 kg653*1021 kg
surface gravity: 29.9 m/s2
3.05 Earths
2.31 m/s2
0.23 Earths
escape velocity:57.88 km/s4.482 km/s
year: 291226 LBK477.6 days
84941 Earth days
133989 LBK477.7 days
111658 Earth days
day:7 hrs20 hrs
axial tilt:13°
temperature:1259 K
986 C
1505 K
1232 C
atmosphere:81% H2
19% He
0% other
100% other
moons:9749
rings:70

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