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MCA645: yellow dwarf star with 17 planets

  MCA645.1   MCA645.2   MCA645.3  
MCA645.4
  MCA645.5   MCA645.6   MCA645.7   MCA645.8   MCA645.9   MCA645.10   MCA645.11   MCA645.12   MCA645.13   MCA645.14  
MCA645.15
 
MCA645.16
  MCA645.17  

Solar system 'MCA645' comprises the star 'MCA645' and the retinue of celestial objects gravitationally bound to it: 17 planets and their 769 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'MCA645', a yellow dwarf class star that contains about 99.95% of the system's known mass and dominates it gravitationally. MCA645 is located more than 2819 lightyears from the center of the galaxy.

This solar system comprises 17 planets

MCA645.1 is a large terrestrial planet (7957 km radius) which orbits its star in 407 Earth days, one day on MCA645.1 lasts 20 Earth hours. Its average temperature is 402 K (129 C), its atmosphere mainly consists of nitrogen, oxygen and it has 13 moons.
MCA645.2 is a medium terrestrial planet (5945 km radius) which orbits its star in 748 Earth days, one day on MCA645.2 lasts 24 Earth hours. Its average temperature is 357 K (84 C), its atmosphere mainly consists of nitrogen, oxygen and it has 10 moons.
MCA645.3 is a large terrestrial planet (7277 km radius) which orbits its star in 1375 Earth days, one day on MCA645.3 lasts 21 Earth hours. Its average temperature is 238 K (-35 C), its atmosphere mainly consists of nitrogen and it has 16 moons.
MCA645.4 is a medium terrestrial planet (5787 km radius) which orbits its star in 2527 Earth days, one day on MCA645.4 lasts 24 Earth hours. Its average temperature is 141 K (-132 C), its atmosphere mainly consists of nitrogen, oxygen and it has 22 moons.
MCA645.5 is a large terrestrial planet (7404 km radius) which orbits its star in 4642 Earth days, one day on MCA645.5 lasts 21 Earth hours. Its average temperature is 78 K (-195 C), its atmosphere mainly consists of nitrogen, carbon dioxide and it has 48 moons.
MCA645.6 is a medium terrestrial planet (6867 km radius) which orbits its star in 8528 Earth days, one day on MCA645.6 lasts 22 Earth hours. Its average temperature is 41 K (-232 C), its atmosphere mainly consists of nitrogen, oxygen and it has 46 moons.
MCA645.7 is a small terrestrial planet (4277 km radius) which orbits its star in 15668 Earth days, one day on MCA645.7 lasts 30 Earth hours. Its average temperature is 21 K (-252 C), its atmosphere mainly consists of nitrogen, carbon dioxide and it has 38 moons.
MCA645.8 is a very large terrestrial planet (10852 km radius) which orbits its star in 28784 Earth days, one day on MCA645.8 lasts 19 Earth hours. Its average temperature is 11 K (-262 C), its atmosphere mainly consists of hydrogen, nitrogen, oxygen and it has 23 moons.
MCA645.9 is a large terrestrial planet (8755 km radius) which orbits its star in 52879 Earth days, one day on MCA645.9 lasts 20 Earth hours. Its average temperature is 5 K (-268 C), its atmosphere mainly consists of nitrogen, oxygen and it has 41 moons.
MCA645.10 is a large terrestrial planet (7200 km radius) which orbits its star in 97146 Earth days, one day on MCA645.10 lasts 21 Earth hours. Its average temperature is 2 K (-271 C), its atmosphere mainly consists of nitrogen, oxygen and it has 20 moons.
MCA645.11 is a medium terrestrial planet (6802 km radius) which orbits its star in 178469 Earth days, one day on MCA645.11 lasts 22 Earth hours. Its average temperature is 1 K (-272 C), its atmosphere mainly consists of nitrogen, oxygen and it has 41 moons.
MCA645.12 is a very small terrestrial planet (2767 km radius) which orbits its star in 327868 Earth days, one day on MCA645.12 lasts 49 Earth hours. Its average temperature is 0 K (-273 C), its atmosphere mainly consists of nitrogen, oxygen and it has 29 moons.
MCA645.13 is a medium terrestrial planet (5386 km radius) which orbits its star in 602333 Earth days, one day on MCA645.13 lasts 25 Earth hours. Its average temperature is 0 K (-273 C), its atmosphere mainly consists of nitrogen, oxygen and it has 29 moons.
MCA645.14 is a large terrestrial planet (7752 km radius) which orbits its star in 1106556 Earth days, one day on MCA645.14 lasts 21 Earth hours. Its average temperature is 0 K (-273 C), its atmosphere mainly consists of nitrogen, oxygen and it has 20 moons.
MCA645.15 is a large gas giant (42420 km radius) which orbits its star in 2032874 Earth days, one day on MCA645.15 lasts 17 Earth hours. Its average temperature is 1465 K (1192 C), its atmosphere mainly consists of hydrogen and it has 177 moons.
MCA645.16 is a medium gas giant (29148 km radius) which orbits its star in 3734628 Earth days, one day on MCA645.16 lasts 17 Earth hours. Its average temperature is 1629 K (1356 C), its atmosphere mainly consists of hydrogen, helium and it has 149 moons.
MCA645.17 is a small terrestrial planetoid (1509 km radius) which orbits its star in 4909295 Earth days, one day on MCA645.17 lasts 128 Earth hours. Its average temperature is 1853 K (1580 C), its atmosphere mainly consists of and it has 47 moons.
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Planetary Orbits

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Planetary Statistics

planet:MCA645.1MCA645.2MCA645.3MCA645.4MCA645.5
distance from star:74*106 km112*106 km168*106 km252*106 km378*106 km
radius:7957 km5945 km7277 km5787 km7404 km
mass:4030*1021 kg1680*1021 kg3082*1021 kg1550*1021 kg3247*1021 kg
surface gravity: 4.24 m/s2
0.43 Earths
3.17 m/s2
0.32 Earths
3.88 m/s2
0.39 Earths
3.08 m/s2
0.31 Earths
3.95 m/s2
0.40 Earths
escape velocity:8.222 km/s6.141 km/s7.518 km/s5.979 km/s7.651 km/s
year: 488 MCA645.1 days
407 Earth days
748 MCA645.2 days
748 Earth days
1571 MCA645.3 days
1375 Earth days
2527 MCA645.4 days
2527 Earth days
5305 MCA645.5 days
4642 Earth days
day:20 hrs24 hrs21 hrs24 hrs21 hrs
axial tilt:19°26°20°
temperature:402 K
129 C
357 K
84 C
238 K
-35 C
141 K
-132 C
78 K
-195 C
atmosphere:56% N2
44% O2
0% other
3% H2
1% He
71% N2
22% O2
3% CO2
0% other
89% N2
2% O2
9% CO2
0% other
3% H2
2% He
49% N2
44% O2
2% CO2
0% other
84% N2
5% O2
11% CO2
0% other
moons:1310162248
rings:00010

planet:MCA645.6MCA645.7MCA645.8MCA645.9MCA645.10
distance from star:567*106 km850*106 km1276*106 km1914*106 km2871*106 km
radius:6867 km4277 km10852 km8755 km7200 km
mass:2590*1021 kg625*1021 kg10223*1021 kg5368*1021 kg2985*1021 kg
surface gravity: 3.66 m/s2
0.37 Earths
2.28 m/s2
0.23 Earths
5.79 m/s2
0.59 Earths
4.67 m/s2
0.47 Earths
3.84 m/s2
0.39 Earths
escape velocity:7.095 km/s4.416 km/s11.21 km/s9.046 km/s7.439 km/s
year: 9303 MCA645.6 days
8528 Earth days
12534 MCA645.7 days
15668 Earth days
36358 MCA645.8 days
28784 Earth days
63454 MCA645.9 days
52879 Earth days
111024 MCA645.10 days
97146 Earth days
day:22 hrs30 hrs19 hrs20 hrs21 hrs
axial tilt:23°10°18°11°29°
temperature:41 K
-232 C
21 K
-252 C
11 K
-262 C
5 K
-268 C
2 K
-271 C
atmosphere:8% H2
4% He
39% N2
49% O2
0% other
79% N2
1% O2
20% CO2
0% other
23% H2
3% He
32% N2
41% O2
1% CO2
0% other
1% H2
1% He
78% N2
15% O2
5% CO2
0% other
82% N2
11% O2
7% CO2
0% other
moons:4638234120
rings:00000

planet:MCA645.11MCA645.12MCA645.13MCA645.14MCA645.15
distance from star:4307*106 km6461*106 km9692*106 km14539*106 km21808*106 km
radius:6802 km2767 km5386 km7752 km42420 km
mass:2517*1021 kg169*1021 kg1249*1021 kg3726*1021 kg610663*1021 kg
surface gravity: 3.63 m/s2
0.37 Earths
1.47 m/s2
0.15 Earths
2.87 m/s2
0.29 Earths
4.13 m/s2
0.42 Earths
22.6 m/s2
2.31 Earths
escape velocity:7.028 km/s2.855 km/s5.563 km/s8.009 km/s43.83 km/s
year: 194693 MCA645.11 days
178469 Earth days
160588 MCA645.12 days
327868 Earth days
578239 MCA645.13 days
602333 Earth days
1264635 MCA645.14 days
1106556 Earth days
2869939 MCA645.15 days
2032874 Earth days
day:22 hrs49 hrs25 hrs21 hrs17 hrs
axial tilt:269°11°19°49°
temperature:1 K
-272 C
0 K
-273 C
0 K
-273 C
0 K
-273 C
1465 K
1192 C
atmosphere:6% H2
2% He
61% N2
29% O2
2% CO2
0% other
2% H2
1% He
68% N2
28% O2
1% CO2
0% other
70% N2
28% O2
2% CO2
0% other
7% H2
1% He
51% N2
40% O2
1% CO2
0% other
91% H2
9% He
0% other
moons:41292920177
rings:000013

planet:MCA645.16MCA645.17
distance from star:32713*106 km39255*106 km
radius:29148 km1509 km
mass:198114*1021 kg27*1021 kg
surface gravity: 15.5 m/s2
1.58 Earths
0.79 m/s2
0.08 Earths
escape velocity:30.12 km/s1.545 km/s
year: 5272416 MCA645.16 days
3734628 Earth days
920492 MCA645.17 days
4909295 Earth days
day:17 hrs128 hrs
axial tilt:22°
temperature:1629 K
1356 C
1853 K
1580 C
atmosphere:80% H2
20% He
0% other
100% other
moons:14947
rings:130

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