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PKC474: yellow dwarf star with 12 planets

  PKC474.1   PKC474.2  
PKC474.3
  PKC474.4   PKC474.5  
PKC474.6
 
PKC474.7
 
PKC474.8
 
PKC474.9
 
PKC474.10
 
PKC474.11
  PKC474.12  

Solar system 'PKC474' comprises the star 'PKC474' and the retinue of celestial objects gravitationally bound to it: 12 planets and their 827 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'PKC474', a yellow dwarf class star that contains about 99.62% of the system's known mass and dominates it gravitationally. PKC474 is located more than 4542 lightyears from the center of the galaxy.

PKC474.3, the third planet in this system, may feature life forms. Its average temperature is 274K (1C) and it's atmosphere contains 34% of oxygen. One year on PKC474.3 lasts 949 days, one day lasts 17 hours. It's diameter is 13756 km, 1 times the diameter of the Earth.

This solar system comprises 12 planets

PKC474.1 is a very large terrestrial planet (10117 km radius) which orbits its star in 113 Earth days, one day on PKC474.1 lasts 14 Earth hours. Its average temperature is 1561 K (1288 C), its atmosphere mainly consists of hydrogen, nitrogen, oxygen and it has 8 moons.
PKC474.2 is a medium terrestrial planet (5880 km radius) which orbits its star in 312 Earth days, one day on PKC474.2 lasts 19 Earth hours. Its average temperature is 805 K (532 C), its atmosphere mainly consists of nitrogen, oxygen and it has 8 moons.
PKC474.3 is a medium terrestrial planet (6878 km radius) which orbits its star in 949 Earth days, one day on PKC474.3 lasts 17 Earth hours. Its average temperature is 274 K (1 C), its atmosphere mainly consists of nitrogen, oxygen and it has 29 moons.
PKC474.4 is a very large terrestrial planet (10309 km radius) which orbits its star in 2183 Earth days, one day on PKC474.4 lasts 14 Earth hours. Its average temperature is 120 K (-153 C), its atmosphere mainly consists of nitrogen, oxygen and it has 35 moons.
PKC474.5 is a large terrestrial planet (8146 km radius) which orbits its star in 4010 Earth days, one day on PKC474.5 lasts 15 Earth hours. Its average temperature is 67 K (-206 C), its atmosphere mainly consists of nitrogen and it has 38 moons.
PKC474.6 is a medium terrestrial planet (6056 km radius) which orbits its star in 7368 Earth days, one day on PKC474.6 lasts 18 Earth hours. Its average temperature is 35 K (-238 C), its atmosphere mainly consists of nitrogen, oxygen and it has 38 moons.
PKC474.7 is a medium gas giant (29547 km radius) which orbits its star in 53842 Earth days, one day on PKC474.7 lasts 12 Earth hours. Its average temperature is 1642 K (1369 C), its atmosphere mainly consists of hydrogen, helium and it has 96 moons.
PKC474.8 is a large terrestrial planet (8746 km radius) which orbits its star in 98915 Earth days, one day on PKC474.8 lasts 15 Earth hours. Its average temperature is 1935 K (1662 C), its atmosphere mainly consists of hydrogen and it has 171 moons.
PKC474.9 is a small gas giant (19812 km radius) which orbits its star in 181718 Earth days, one day on PKC474.9 lasts 12 Earth hours. Its average temperature is 1560 K (1287 C), its atmosphere mainly consists of hydrogen and it has 177 moons.
PKC474.10 is a large gas giant (59475 km radius) which orbits its star in 358211 Earth days, one day on PKC474.10 lasts 12 Earth hours. Its average temperature is 1362 K (1089 C), its atmosphere mainly consists of hydrogen, helium and it has 94 moons.
PKC474.11 is a large gas giant (75902 km radius) which orbits its star in 658077 Earth days, one day on PKC474.11 lasts 12 Earth hours. Its average temperature is 1928 K (1655 C), its atmosphere mainly consists of hydrogen, helium and it has 108 moons.
PKC474.12 is a medium terrestrial planet (5893 km radius) which orbits its star in 865065 Earth days, one day on PKC474.12 lasts 19 Earth hours. Its average temperature is 1646 K (1373 C), its atmosphere mainly consists of and it has 25 moons.
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Planetary Statistics

planet:PKC474.1PKC474.2PKC474.3PKC474.4PKC474.5
distance from star:31*106 km62*106 km131*106 km228*106 km343*106 km
radius:10117 km5880 km6878 km10309 km8146 km
mass:8284*1021 kg1626*1021 kg2603*1021 kg8764*1021 kg4324*1021 kg
surface gravity: 5.40 m/s2
0.55 Earths
3.13 m/s2
0.32 Earths
3.67 m/s2
0.37 Earths
5.50 m/s2
0.56 Earths
4.34 m/s2
0.44 Earths
escape velocity:10.45 km/s6.075 km/s7.107 km/s10.65 km/s8.417 km/s
year: 193 PKC474.1 days
113 Earth days
394 PKC474.2 days
312 Earth days
1339 PKC474.3 days
949 Earth days
3742 PKC474.4 days
2183 Earth days
6416 PKC474.5 days
4010 Earth days
day:14 hrs19 hrs17 hrs14 hrs15 hrs
axial tilt:18°30°14°176°
temperature:1561 K
1288 C
805 K
532 C
274 K
1 C
120 K
-153 C
67 K
-206 C
atmosphere:28% H2
4% He
18% N2
49% O2
1% CO2
0% other
2% H2
1% He
72% N2
25% O2
0% other
65% N2
34% O2
1% CO2
0% other
3% H2
1% He
71% N2
21% O2
4% CO2
0% other
90% N2
5% O2
5% CO2
0% other
moons:88293538
rings:00300

planet:PKC474.6PKC474.7PKC474.8PKC474.9PKC474.10
distance from star:514*106 km1937*106 km2906*106 km4360*106 km6854*106 km
radius:6056 km29547 km8746 km19812 km59475 km
mass:1776*1021 kg206362*1021 kg5352*1021 kg62212*1021 kg1683035*1021 kg
surface gravity: 3.23 m/s2
0.33 Earths
15.7 m/s2
1.60 Earths
4.66 m/s2
0.47 Earths
10.5 m/s2
1.07 Earths
31.7 m/s2
3.24 Earths
escape velocity:6.256 km/s30.53 km/s9.037 km/s20.47 km/s61.46 km/s
year: 9824 PKC474.6 days
7368 Earth days
107684 PKC474.7 days
53842 Earth days
158264 PKC474.8 days
98915 Earth days
363436 PKC474.9 days
181718 Earth days
716422 PKC474.10 days
358211 Earth days
day:18 hrs12 hrs15 hrs12 hrs12 hrs
axial tilt:74°
temperature:35 K
-238 C
1642 K
1369 C
1935 K
1662 C
1560 K
1287 C
1362 K
1089 C
atmosphere:3% H2
1% He
54% N2
42% O2
0% other
80% H2
20% He
0% other
94% H2
6% He
0% other
91% H2
9% He
0% other
84% H2
16% He
0% other
moons:389617117794
rings:3118199

planet:PKC474.11PKC474.12
distance from star:10281*106 km12338*106 km
radius:75902 km5893 km
mass:3498240*1021 kg1637*1021 kg
surface gravity: 40.5 m/s2
4.14 Earths
3.14 m/s2
0.32 Earths
escape velocity:78.43 km/s6.089 km/s
year: 1316154 PKC474.11 days
658077 Earth days
1092713 PKC474.12 days
865065 Earth days
day:12 hrs19 hrs
axial tilt:
temperature:1928 K
1655 C
1646 K
1373 C
atmosphere:77% H2
23% He
0% other
100% other
moons:10825
rings:170

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