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LBK474: red dwarf star with 7 planets

  LBK474.1   LBK474.2  
LBK474.3
  LBK474.4  
LBK474.5
 
LBK474.6
  LBK474.7  

Solar system 'LBK474' comprises the star 'LBK474' and the retinue of celestial objects gravitationally bound to it: 7 planets and their 469 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'LBK474', a red dwarf class star that contains about 97.22% of the system's known mass and dominates it gravitationally. LBK474 is located more than 5135 lightyears from the center of the galaxy.

This solar system comprises 7 planets

LBK474.1 is a large terrestrial planet (8055 km radius) which orbits its star in 354 Earth days, one day on LBK474.1 lasts 10 Earth hours. Its average temperature is 58 K (-215 C), its atmosphere mainly consists of nitrogen, oxygen and it has 7 moons.
LBK474.2 is a small terrestrial planet (3026 km radius) which orbits its star in 650 Earth days, one day on LBK474.2 lasts 34 Earth hours. Its average temperature is 51 K (-222 C), its atmosphere mainly consists of nitrogen, carbon dioxide and it has 1 moons.
LBK474.3 is a large gas giant (63555 km radius) which orbits its star in 11600 Earth days, one day on LBK474.3 lasts 7 Earth hours. Its average temperature is 1052 K (779 C), its atmosphere mainly consists of hydrogen and it has 111 moons.
LBK474.4 is a medium terrestrial planet (6480 km radius) which orbits its star in 21311 Earth days, one day on LBK474.4 lasts 12 Earth hours. Its average temperature is 1356 K (1083 C), its atmosphere mainly consists of hydrogen, helium and it has 103 moons.
LBK474.5 is a large gas giant (58120 km radius) which orbits its star in 140189 Earth days, one day on LBK474.5 lasts 7 Earth hours. Its average temperature is 1269 K (996 C), its atmosphere mainly consists of hydrogen, helium and it has 113 moons.
LBK474.6 is a large gas giant (75913 km radius) which orbits its star in 363557 Earth days, one day on LBK474.6 lasts 7 Earth hours. Its average temperature is 1011 K (738 C), its atmosphere mainly consists of hydrogen, helium and it has 85 moons.
LBK474.7 is a large terrestrial planet (7150 km radius) which orbits its star in 477908 Earth days, one day on LBK474.7 lasts 11 Earth hours. Its average temperature is 1270 K (997 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:LBK474.1LBK474.2LBK474.3LBK474.4LBK474.5
distance from star:68*106 km102*106 km696*106 km1044*106 km3667*106 km
radius:8055 km3026 km63555 km6480 km58120 km
mass:4181*1021 kg221*1021 kg2053710*1021 kg2176*1021 kg1570604*1021 kg
surface gravity: 4.30 m/s2
0.43 Earths
1.61 m/s2
0.16 Earths
33.9 m/s2
3.46 Earths
3.45 m/s2
0.35 Earths
31.0 m/s2
3.16 Earths
escape velocity:8.323 km/s3.122 km/s65.67 km/s6.695 km/s60.06 km/s
year: 849 LBK474.1 days
354 Earth days
458 LBK474.2 days
650 Earth days
39771 LBK474.3 days
11600 Earth days
42622 LBK474.4 days
21311 Earth days
480648 LBK474.5 days
140189 Earth days
day:10 hrs34 hrs7 hrs12 hrs7 hrs
axial tilt:
temperature:58 K
-215 C
51 K
-222 C
1052 K
779 C
1356 K
1083 C
1269 K
996 C
atmosphere:51% N2
48% O2
1% CO2
0% other
83% N2
2% O2
15% CO2
0% other
92% H2
8% He
0% other
83% H2
17% He
0% other
87% H2
13% He
0% other
moons:71111103113
rings:002203

planet:LBK474.6LBK474.7
distance from star:6922*106 km8307*106 km
radius:75913 km7150 km
mass:3499761*1021 kg2924*1021 kg
surface gravity: 40.5 m/s2
4.14 Earths
3.81 m/s2
0.38 Earths
escape velocity:78.44 km/s7.388 km/s
year: 1246481 LBK474.6 days
363557 Earth days
1042708 LBK474.7 days
477908 Earth days
day:7 hrs11 hrs
axial tilt:
temperature:1011 K
738 C
1270 K
997 C
atmosphere:78% H2
22% He
0% other
100% other
moons:8549
rings:230

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