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LDD972: red dwarf star with 4 planets

  LDD972.1  
LDD972.2
 
LDD972.3
 
LDD972.4
 

Solar system 'LDD972' comprises the star 'LDD972' and the retinue of celestial objects gravitationally bound to it: 4 planets and their 312 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'LDD972', a red dwarf class star that contains about 99.64% of the system's known mass and dominates it gravitationally. LDD972 is located more than 5506 lightyears from the center of the galaxy.

This solar system comprises 4 planets

LDD972.1 is a small terrestrial planet (4743 km radius) which orbits its star in 16 Earth days, one day on LDD972.1 lasts 15 Earth hours. Its average temperature is 1800 K (1527 C), its atmosphere mainly consists of nitrogen and it has 0 moons.
LDD972.2 is a large gas giant (75399 km radius) which orbits its star in 15936 Earth days, one day on LDD972.2 lasts 4 Earth hours. Its average temperature is 1281 K (1008 C), its atmosphere mainly consists of hydrogen, helium and it has 113 moons.
LDD972.3 is a very large terrestrial planet (11838 km radius) which orbits its star in 29277 Earth days, one day on LDD972.3 lasts 5 Earth hours. Its average temperature is 1810 K (1537 C), its atmosphere mainly consists of hydrogen, helium and it has 130 moons.
LDD972.4 is a medium gas giant (35556 km radius) which orbits its star in 76482 Earth days, one day on LDD972.4 lasts 4 Earth hours. Its average temperature is 1274 K (1001 C), its atmosphere mainly consists of hydrogen and it has 69 moons.
More planetary details...

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Planetary Orbits

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Planetary Statistics

planet:LDD972.1LDD972.2LDD972.3LDD972.4
distance from star:8*106 km860*106 km1290*106 km2448*106 km
radius:4743 km75399 km11838 km35556 km
mass:853*1021 kg3429152*1021 kg13271*1021 kg359607*1021 kg
surface gravity: 2.53 m/s2
0.25 Earths
40.2 m/s2
4.11 Earths
6.32 m/s2
0.64 Earths
18.9 m/s2
1.93 Earths
escape velocity:4.899 km/s77.91 km/s12.23 km/s36.74 km/s
year: 25 LDD972.1 days
16 Earth days
95616 LDD972.2 days
15936 Earth days
140529 LDD972.3 days
29277 Earth days
458892 LDD972.4 days
76482 Earth days
day:15 hrs4 hrs5 hrs4 hrs
axial tilt:77°
temperature:1800 K
1527 C
1281 K
1008 C
1810 K
1537 C
1274 K
1001 C
atmosphere:90% N2
5% O2
5% CO2
0% other
76% H2
24% He
0% other
86% H2
14% He
0% other
97% H2
3% He
0% other
moons:011313069
rings:0161811

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