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LBJ478: yellow dwarf star with 4 planets

  LBJ478.1   LBJ478.2   LBJ478.3   LBJ478.4  

Solar system 'LBJ478' comprises the star 'LBJ478' and the retinue of celestial objects gravitationally bound to it: 4 planets and their 43 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'LBJ478', a yellow dwarf class star that contains about 99.99% of the system's known mass and dominates it gravitationally. LBJ478 is located more than 4875 lightyears from the center of the galaxy.

LBJ478.4, the fourth planet in this system, may feature life forms. Its average temperature is 327K (54C) and it's atmosphere contains 36% of oxygen. One year on LBJ478.4 lasts 1273 days, one day lasts 7 hours. It's diameter is 18164 km, 1.4 times the diameter of the Earth.

This solar system comprises 4 planets

LBJ478.1 is a medium terrestrial planet (6634 km radius) which orbits its star in 121 Earth days, one day on LBJ478.1 lasts 9 Earth hours. Its average temperature is 1881 K (1608 C), its atmosphere mainly consists of hydrogen, nitrogen, oxygen and it has 7 moons.
LBJ478.2 is a small terrestrial planet (3684 km radius) which orbits its star in 222 Earth days, one day on LBJ478.2 lasts 22 Earth hours. Its average temperature is 1672 K (1399 C), its atmosphere mainly consists of nitrogen, oxygen and it has 1 moons.
LBJ478.3 is a large terrestrial planet (7141 km radius) which orbits its star in 693 Earth days, one day on LBJ478.3 lasts 8 Earth hours. Its average temperature is 552 K (279 C), its atmosphere mainly consists of nitrogen and it has 23 moons.
LBJ478.4 is a very large terrestrial planet (9082 km radius) which orbits its star in 1273 Earth days, one day on LBJ478.4 lasts 7 Earth hours. Its average temperature is 327 K (54 C), its atmosphere mainly consists of nitrogen, oxygen and it has 12 moons.
More planetary details...

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Planetary Orbits

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Planetary Statistics

planet:LBJ478.1LBJ478.2LBJ478.3LBJ478.4
distance from star:33*106 km49*106 km106*106 km159*106 km
radius:6634 km3684 km7141 km9082 km
mass:2335*1021 kg399*1021 kg2913*1021 kg5992*1021 kg
surface gravity: 3.54 m/s2
0.36 Earths
1.96 m/s2
0.20 Earths
3.81 m/s2
0.38 Earths
4.84 m/s2
0.49 Earths
escape velocity:6.854 km/s3.802 km/s7.379 km/s9.384 km/s
year: 322 LBJ478.1 days
121 Earth days
242 LBJ478.2 days
222 Earth days
2079 LBJ478.3 days
693 Earth days
4364 LBJ478.4 days
1273 Earth days
day:9 hrs22 hrs8 hrs7 hrs
axial tilt:19°
temperature:1881 K
1608 C
1672 K
1399 C
552 K
279 C
327 K
54 C
atmosphere:14% H2
2% He
42% N2
40% O2
2% CO2
0% other
2% H2
2% He
55% N2
40% O2
1% CO2
0% other
87% N2
9% O2
4% CO2
0% other
63% N2
36% O2
1% CO2
0% other
moons:712312
rings:0000

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