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UDK474: red giant star with 9 planets

  UDK474.1   UDK474.2   UDK474.3   UDK474.4   UDK474.5  
UDK474.6
 
UDK474.7
 
UDK474.8
  UDK474.9  

Solar system 'UDK474' comprises the star 'UDK474' and the retinue of celestial objects gravitationally bound to it: 9 planets and their 512 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'UDK474', a red giant class star that contains about 99.9% of the system's known mass and dominates it gravitationally. UDK474 is located more than 731 lightyears from the center of the galaxy.

This solar system comprises 9 planets

UDK474.1 is a small terrestrial planet (3671 km radius) which orbits its star in 16 Earth days, one day on UDK474.1 lasts 27 Earth hours. Its average temperature is 1925 K (1652 C), its atmosphere mainly consists of nitrogen and it has 0 moons.
UDK474.2 is a very small terrestrial planet (2468 km radius) which orbits its star in 81 Earth days, one day on UDK474.2 lasts 50 Earth hours. Its average temperature is 1781 K (1508 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
UDK474.3 is a very small terrestrial planet (2918 km radius) which orbits its star in 178 Earth days, one day on UDK474.3 lasts 38 Earth hours. Its average temperature is 1883 K (1610 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
UDK474.4 is a large terrestrial planet (8925 km radius) which orbits its star in 460 Earth days, one day on UDK474.4 lasts 12 Earth hours. Its average temperature is 1424 K (1151 C), its atmosphere mainly consists of nitrogen, oxygen and it has 25 moons.
UDK474.5 is a large terrestrial planet (7600 km radius) which orbits its star in 1047 Earth days, one day on UDK474.5 lasts 13 Earth hours. Its average temperature is 1190 K (917 C), its atmosphere mainly consists of nitrogen, oxygen and it has 38 moons.
UDK474.6 is a huge terrestrial planet (14329 km radius) which orbits its star in 2300 Earth days, one day on UDK474.6 lasts 10 Earth hours. Its average temperature is 1517 K (1244 C), its atmosphere mainly consists of hydrogen and it has 2 moons.
UDK474.7 is a large gas giant (57646 km radius) which orbits its star in 5533 Earth days, one day on UDK474.7 lasts 9 Earth hours. Its average temperature is 1350 K (1077 C), its atmosphere mainly consists of hydrogen, helium and it has 145 moons.
UDK474.8 is a large gas giant (71329 km radius) which orbits its star in 129622 Earth days, one day on UDK474.8 lasts 9 Earth hours. Its average temperature is 1828 K (1555 C), its atmosphere mainly consists of hydrogen and it has 126 moons.
UDK474.9 is a large gas giant (75028 km radius) which orbits its star in 259253 Earth days, one day on UDK474.9 lasts 9 Earth hours. Its average temperature is 1149 K (876 C), its atmosphere mainly consists of hydrogen, helium and it has 176 moons.
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Planetary Statistics

planet:UDK474.1UDK474.2UDK474.3UDK474.4UDK474.5
distance from star:8*106 km25*106 km43*106 km81*106 km140*106 km
radius:3671 km2468 km2918 km8925 km7600 km
mass:395*1021 kg120*1021 kg198*1021 kg5687*1021 kg3511*1021 kg
surface gravity: 1.95 m/s2
0.19 Earths
1.31 m/s2
0.13 Earths
1.55 m/s2
0.15 Earths
4.76 m/s2
0.48 Earths
4.05 m/s2
0.41 Earths
escape velocity:3.789 km/s2.547 km/s3.009 km/s9.222 km/s7.852 km/s
year: 14 UDK474.1 days
16 Earth days
38 UDK474.2 days
81 Earth days
112 UDK474.3 days
178 Earth days
920 UDK474.4 days
460 Earth days
1932 UDK474.5 days
1047 Earth days
day:27 hrs50 hrs38 hrs12 hrs13 hrs
axial tilt:331°237°18°268°
temperature:1925 K
1652 C
1781 K
1508 C
1883 K
1610 C
1424 K
1151 C
1190 K
917 C
atmosphere:85% N2
5% O2
10% CO2
0% other
4% H2
1% He
57% N2
36% O2
2% CO2
0% other
4% H2
2% He
52% N2
41% O2
1% CO2
0% other
1% He
58% N2
41% O2
0% other
66% N2
32% O2
2% CO2
0% other
moons:0002538
rings:00000

planet:UDK474.6UDK474.7UDK474.8UDK474.9
distance from star:236*106 km425*106 km3480*106 km5525*106 km
radius:14329 km57646 km71329 km75028 km
mass:23536*1021 kg1532489*1021 kg2903276*1021 kg3378781*1021 kg
surface gravity: 7.65 m/s2
0.78 Earths
30.7 m/s2
3.13 Earths
38.0 m/s2
3.88 Earths
40.0 m/s2
4.08 Earths
escape velocity:14.80 km/s59.57 km/s73.71 km/s77.53 km/s
year: 5520 UDK474.6 days
2300 Earth days
14754 UDK474.7 days
5533 Earth days
345658 UDK474.8 days
129622 Earth days
691341 UDK474.9 days
259253 Earth days
day:10 hrs9 hrs9 hrs9 hrs
axial tilt:
temperature:1517 K
1244 C
1350 K
1077 C
1828 K
1555 C
1149 K
876 C
atmosphere:97% H2
3% He
0% other
77% H2
23% He
0% other
91% H2
9% He
0% other
88% H2
12% He
0% other
moons:2145126176
rings:235220

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