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MCD531: yellow dwarf star with 20 planets

  MCD531.1   MCD531.2   MCD531.3   MCD531.4   MCD531.5   MCD531.6  
MCD531.7
 
MCD531.8
 
MCD531.9
  MCD531.10  
MCD531.11
 
MCD531.12
 
MCD531.13
 
MCD531.14
 
MCD531.15
 
MCD531.16
 
MCD531.17
 
MCD531.18
 
MCD531.19
  MCD531.20  

Solar system 'MCD531' comprises the star 'MCD531' and the retinue of celestial objects gravitationally bound to it: 20 planets and their 1526 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'MCD531', a yellow dwarf class star that contains about 99.47% of the system's known mass and dominates it gravitationally. MCD531 is located more than 2819 lightyears from the center of the galaxy.

This solar system comprises 20 planets

MCD531.1 is a large terrestrial planet (7338 km radius) which orbits its star in 342 Earth days, one day on MCD531.1 lasts 24 Earth hours. Its average temperature is 696 K (423 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
MCD531.2 is a very small terrestrial planet (2131 km radius) which orbits its star in 629 Earth days, one day on MCD531.2 lasts 75 Earth hours. Its average temperature is 619 K (346 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
MCD531.3 is a medium terrestrial planet (6049 km radius) which orbits its star in 1156 Earth days, one day on MCD531.3 lasts 26 Earth hours. Its average temperature is 412 K (139 C), its atmosphere mainly consists of nitrogen, oxygen and it has 12 moons.
MCD531.4 is a large terrestrial planet (7110 km radius) which orbits its star in 2124 Earth days, one day on MCD531.4 lasts 24 Earth hours. Its average temperature is 244 K (-29 C), its atmosphere mainly consists of nitrogen, oxygen and it has 19 moons.
MCD531.5 is a medium terrestrial planet (6393 km radius) which orbits its star in 3902 Earth days, one day on MCD531.5 lasts 26 Earth hours. Its average temperature is 135 K (-138 C), its atmosphere mainly consists of nitrogen, oxygen and it has 7 moons.
MCD531.6 is a large terrestrial planet (8451 km radius) which orbits its star in 7169 Earth days, one day on MCD531.6 lasts 23 Earth hours. Its average temperature is 72 K (-201 C), its atmosphere mainly consists of nitrogen, oxygen and it has 22 moons.
MCD531.7 is a large gas giant (49937 km radius) which orbits its star in 90115 Earth days, one day on MCD531.7 lasts 20 Earth hours. Its average temperature is 1922 K (1649 C), its atmosphere mainly consists of hydrogen and it has 112 moons.
MCD531.8 is a large gas giant (53362 km radius) which orbits its star in 165551 Earth days, one day on MCD531.8 lasts 20 Earth hours. Its average temperature is 1022 K (749 C), its atmosphere mainly consists of hydrogen and it has 36 moons.
MCD531.9 is a large gas giant (62743 km radius) which orbits its star in 304138 Earth days, one day on MCD531.9 lasts 20 Earth hours. Its average temperature is 1710 K (1437 C), its atmosphere mainly consists of hydrogen, helium and it has 168 moons.
MCD531.10 is a large terrestrial planet (7900 km radius) which orbits its star in 558737 Earth days, one day on MCD531.10 lasts 24 Earth hours. Its average temperature is 1050 K (777 C), its atmosphere mainly consists of hydrogen and it has 126 moons.
MCD531.11 is a medium gas giant (24523 km radius) which orbits its star in 1026466 Earth days, one day on MCD531.11 lasts 20 Earth hours. Its average temperature is 1808 K (1535 C), its atmosphere mainly consists of hydrogen, helium and it has 116 moons.
MCD531.12 is a large gas giant (52911 km radius) which orbits its star in 1885739 Earth days, one day on MCD531.12 lasts 20 Earth hours. Its average temperature is 1013 K (740 C), its atmosphere mainly consists of hydrogen, helium and it has 119 moons.
MCD531.13 is a large gas giant (58848 km radius) which orbits its star in 3464324 Earth days, one day on MCD531.13 lasts 20 Earth hours. Its average temperature is 1114 K (841 C), its atmosphere mainly consists of hydrogen and it has 109 moons.
MCD531.14 is a medium gas giant (30572 km radius) which orbits its star in 6364369 Earth days, one day on MCD531.14 lasts 20 Earth hours. Its average temperature is 1101 K (828 C), its atmosphere mainly consists of hydrogen, helium and it has 75 moons.
MCD531.15 is a large gas giant (74544 km radius) which orbits its star in 11692094 Earth days, one day on MCD531.15 lasts 20 Earth hours. Its average temperature is 1239 K (966 C), its atmosphere mainly consists of hydrogen, helium and it has 120 moons.
MCD531.16 is a small gas giant (18967 km radius) which orbits its star in 21479748 Earth days, one day on MCD531.16 lasts 20 Earth hours. Its average temperature is 1133 K (860 C), its atmosphere mainly consists of hydrogen and it has 96 moons.
MCD531.17 is a large gas giant (72359 km radius) which orbits its star in 39460817 Earth days, one day on MCD531.17 lasts 20 Earth hours. Its average temperature is 1902 K (1629 C), its atmosphere mainly consists of hydrogen and it has 171 moons.
MCD531.18 is a large gas giant (41100 km radius) which orbits its star in 72494149 Earth days, one day on MCD531.18 lasts 20 Earth hours. Its average temperature is 1865 K (1592 C), its atmosphere mainly consists of hydrogen and it has 89 moons.
MCD531.19 is a large gas giant (47061 km radius) which orbits its star in 133180256 Earth days, one day on MCD531.19 lasts 20 Earth hours. Its average temperature is 1814 K (1541 C), its atmosphere mainly consists of hydrogen and it has 99 moons.
MCD531.20 is a medium terrestrial planet (6763 km radius) which orbits its star in 175069993 Earth days, one day on MCD531.20 lasts 25 Earth hours. Its average temperature is 1712 K (1439 C), its atmosphere mainly consists of and it has 30 moons.
More planetary details...

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Planetary Orbits

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Planetary Statistics

planet:MCD531.1MCD531.2MCD531.3MCD531.4MCD531.5
distance from star:66*106 km99*106 km149*106 km224*106 km336*106 km
radius:7338 km2131 km6049 km7110 km6393 km
mass:3160*1021 kg77*1021 kg1770*1021 kg2875*1021 kg2090*1021 kg
surface gravity: 3.91 m/s2
0.39 Earths
1.13 m/s2
0.11 Earths
3.22 m/s2
0.32 Earths
3.79 m/s2
0.38 Earths
3.41 m/s2
0.34 Earths
escape velocity:7.581 km/s2.196 km/s6.249 km/s7.346 km/s6.605 km/s
year: 342 MCD531.1 days
342 Earth days
201 MCD531.2 days
629 Earth days
1067 MCD531.3 days
1156 Earth days
2124 MCD531.4 days
2124 Earth days
3601 MCD531.5 days
3902 Earth days
day:24 hrs75 hrs26 hrs24 hrs26 hrs
axial tilt:177°16°27°10°
temperature:696 K
423 C
619 K
346 C
412 K
139 C
244 K
-29 C
135 K
-138 C
atmosphere:2% He
74% N2
23% O2
1% CO2
0% other
1% H2
1% He
70% N2
27% O2
1% CO2
0% other
1% H2
2% He
64% N2
33% O2
0% other
10% H2
4% He
39% N2
46% O2
1% CO2
0% other
2% H2
1% He
75% N2
20% O2
2% CO2
0% other
moons:0012197
rings:00000

planet:MCD531.6MCD531.7MCD531.8MCD531.9MCD531.10
distance from star:505*106 km2731*106 km4097*106 km6146*106 km9219*106 km
radius:8451 km49937 km53362 km62743 km7900 km
mass:4828*1021 kg996224*1021 kg1215587*1021 kg1975994*1021 kg3944*1021 kg
surface gravity: 4.51 m/s2
0.46 Earths
26.6 m/s2
2.71 Earths
28.4 m/s2
2.90 Earths
33.5 m/s2
3.42 Earths
4.21 m/s2
0.43 Earths
escape velocity:8.732 km/s51.60 km/s55.14 km/s64.83 km/s8.163 km/s
year: 7480 MCD531.6 days
7169 Earth days
108138 MCD531.7 days
90115 Earth days
198661 MCD531.8 days
165551 Earth days
364965 MCD531.9 days
304138 Earth days
558737 MCD531.10 days
558737 Earth days
day:23 hrs20 hrs20 hrs20 hrs24 hrs
axial tilt:
temperature:72 K
-201 C
1922 K
1649 C
1022 K
749 C
1710 K
1437 C
1050 K
777 C
atmosphere:52% N2
46% O2
2% CO2
0% other
92% H2
8% He
0% other
99% H2
1% He
0% other
85% H2
15% He
0% other
95% H2
5% He
0% other
moons:2211236168126
rings:02123110

planet:MCD531.11MCD531.12MCD531.13MCD531.14MCD531.15
distance from star:13828*106 km20743*106 km31114*106 km46672*106 km70008*106 km
radius:24523 km52911 km58848 km30572 km74544 km
mass:117980*1021 kg1185026*1021 kg1630365*1021 kg228592*1021 kg3313813*1021 kg
surface gravity: 13.0 m/s2
1.32 Earths
28.2 m/s2
2.88 Earths
31.4 m/s2
3.21 Earths
16.3 m/s2
1.66 Earths
39.8 m/s2
4.06 Earths
escape velocity:25.34 km/s54.67 km/s60.81 km/s31.59 km/s77.03 km/s
year: 1231759 MCD531.11 days
1026466 Earth days
2262886 MCD531.12 days
1885739 Earth days
4157188 MCD531.13 days
3464324 Earth days
7637242 MCD531.14 days
6364369 Earth days
14030512 MCD531.15 days
11692094 Earth days
day:20 hrs20 hrs20 hrs20 hrs20 hrs
axial tilt:80°66°
temperature:1808 K
1535 C
1013 K
740 C
1114 K
841 C
1101 K
828 C
1239 K
966 C
atmosphere:81% H2
19% He
0% other
81% H2
19% He
0% other
92% H2
8% He
0% other
87% H2
13% He
0% other
84% H2
16% He
0% other
moons:11611910975120
rings:15212483

planet:MCD531.16MCD531.17MCD531.18MCD531.19MCD531.20
distance from star:105013*106 km157519*106 km236279*106 km354419*106 km425303*106 km
radius:18967 km72359 km41100 km47061 km6763 km
mass:54586*1021 kg3030872*1021 kg555412*1021 kg833822*1021 kg2474*1021 kg
surface gravity: 10.1 m/s2
1.03 Earths
38.6 m/s2
3.94 Earths
21.9 m/s2
2.23 Earths
25.1 m/s2
2.56 Earths
3.61 m/s2
0.36 Earths
escape velocity:19.60 km/s74.77 km/s42.47 km/s48.63 km/s6.987 km/s
year: 25775697 MCD531.16 days
21479748 Earth days
47352980 MCD531.17 days
39460817 Earth days
86992978 MCD531.18 days
72494149 Earth days
159816307 MCD531.19 days
133180256 Earth days
168067193 MCD531.20 days
175069993 Earth days
day:20 hrs20 hrs20 hrs20 hrs25 hrs
axial tilt:
temperature:1133 K
860 C
1902 K
1629 C
1865 K
1592 C
1814 K
1541 C
1712 K
1439 C
atmosphere:96% H2
4% He
0% other
95% H2
5% He
0% other
99% H2
1% He
0% other
99% H2
1% He
0% other
100% other
moons:96171899930
rings:13207200

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