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MDJ308: yellow dwarf star with 7 planets

  MDJ308.1   MDJ308.2  
MDJ308.3
  MDJ308.4   MDJ308.5  
MDJ308.6
  MDJ308.7  

Solar system 'MDJ308' is a dual star system that comprises the stars 'MDJ308.A' and 'MDJ308.B' and the retinue of celestial objects gravitationally bound to them: 7 planets and their 232 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal components of this star system are the stars 'MDJ308.A' and 'MDJ308.B' that dominate it gravitationally. 'MDJ308.A' is a yellow dwarf class star that contains about 99% of the system's known mass, 'MDJ308.B' is a brown dwarf class star that contains about 0% of the system's known mass.

System 'MDJ308' is located more than 2819 lightyears from the center of the galaxy.

MDJ308.2, the second planet in this system, may feature life forms. Its average temperature is 318K (45C) and it's atmosphere contains 3% of oxygen. One year on MDJ308.2 lasts 975 days, one day lasts 32 hours. It's diameter is 6212 km, 0.4 times the diameter of the Earth.

This solar system comprises 7 planets

MDJ308.1 is a very large terrestrial planet (11299 km radius) which orbits its star in 531 Earth days, one day on MDJ308.1 lasts 8 Earth hours. Its average temperature is 358 K (85 C), its atmosphere mainly consists of hydrogen, nitrogen, oxygen and it has 31 moons.
MDJ308.2 is a small terrestrial planet (3106 km radius) which orbits its star in 975 Earth days, one day on MDJ308.2 lasts 32 Earth hours. Its average temperature is 318 K (45 C), its atmosphere mainly consists of nitrogen and it has 0 moons.
MDJ308.3 is a large terrestrial planet (7543 km radius) which orbits its star in 1792 Earth days, one day on MDJ308.3 lasts 11 Earth hours. Its average temperature is 212 K (-61 C), its atmosphere mainly consists of nitrogen, oxygen and it has 3 moons.
MDJ308.4 is a very large terrestrial planet (9825 km radius) which orbits its star in 3293 Earth days, one day on MDJ308.4 lasts 9 Earth hours. Its average temperature is 125 K (-148 C), its atmosphere mainly consists of nitrogen, oxygen and it has 23 moons.
MDJ308.5 is a medium gas giant (39256 km radius) which orbits its star in 54997 Earth days, one day on MDJ308.5 lasts 7 Earth hours. Its average temperature is 1413 K (1140 C), its atmosphere mainly consists of hydrogen, helium and it has 53 moons.
MDJ308.6 is a massive terrestrial planet (16279 km radius) which orbits its star in 101036 Earth days, one day on MDJ308.6 lasts 7 Earth hours. Its average temperature is 1350 K (1077 C), its atmosphere mainly consists of hydrogen and it has 118 moons.
MDJ308.7 is a small terrestrial planetoid (1296 km radius) which orbits its star in 132815 Earth days, one day on MDJ308.7 lasts 159 Earth hours. Its average temperature is 1659 K (1386 C), its atmosphere mainly consists of and it has 4 moons.
More planetary details...

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Planetary Orbits

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Planetary Statistics

planet:MDJ308.1MDJ308.2MDJ308.3MDJ308.4MDJ308.5
distance from star:89*106 km133*106 km200*106 km300*106 km1965*106 km
radius:11299 km3106 km7543 km9825 km39256 km
mass:11540*1021 kg239*1021 kg3433*1021 kg7587*1021 kg483958*1021 kg
surface gravity: 6.03 m/s2
0.61 Earths
1.65 m/s2
0.16 Earths
4.02 m/s2
0.41 Earths
5.24 m/s2
0.53 Earths
20.9 m/s2
2.13 Earths
escape velocity:11.67 km/s3.204 km/s7.794 km/s10.15 km/s40.56 km/s
year: 1593 MDJ308.1 days
531 Earth days
731 MDJ308.2 days
975 Earth days
3909 MDJ308.3 days
1792 Earth days
8781 MDJ308.4 days
3293 Earth days
188561 MDJ308.5 days
54997 Earth days
day:8 hrs32 hrs11 hrs9 hrs7 hrs
axial tilt:19°351°15°
temperature:358 K
85 C
318 K
45 C
212 K
-61 C
125 K
-148 C
1413 K
1140 C
atmosphere:12% H2
2% He
46% N2
40% O2
0% other
94% N2
3% O2
3% CO2
0% other
9% H2
2% He
60% N2
28% O2
1% CO2
0% other
3% H2
1% He
63% N2
33% O2
0% other
79% H2
21% He
0% other
moons:31032353
rings:00500

planet:MDJ308.6MDJ308.7
distance from star:2948*106 km3537*106 km
radius:16279 km1296 km
mass:34512*1021 kg17*1021 kg
surface gravity: 8.69 m/s2
0.88 Earths
0.67 m/s2
0.06 Earths
escape velocity:16.82 km/s1.323 km/s
year: 346409 MDJ308.6 days
101036 Earth days
20047 MDJ308.7 days
132815 Earth days
day:7 hrs159 hrs
axial tilt:18°
temperature:1350 K
1077 C
1659 K
1386 C
atmosphere:93% H2
7% He
0% other
100% other
moons:1184
rings:190

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