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UCD641: yellow dwarf star with 7 planets

  UCD641.1   UCD641.2   UCD641.3   UCD641.4   UCD641.5   UCD641.6   UCD641.7  

Solar system 'UCD641' comprises the star 'UCD641' and the retinue of celestial objects gravitationally bound to it: 7 planets and their 46 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'UCD641', a yellow dwarf class star that contains about 99.99% of the system's known mass and dominates it gravitationally. UCD641 is located more than 4946 lightyears from the center of the galaxy.

UCD641.4, the fourth planet in this system, may feature life forms. Its average temperature is 338K (65C) and it's atmosphere contains 45% of oxygen. One year on UCD641.4 lasts 1372 days, one day lasts 23 hours. It's diameter is 7796 km, 0.6 times the diameter of the Earth.

This solar system comprises 7 planets

UCD641.1 is a small terrestrial planet (4947 km radius) which orbits its star in 44 Earth days, one day on UCD641.1 lasts 17 Earth hours. Its average temperature is 1030 K (757 C), its atmosphere mainly consists of nitrogen, carbon dioxide and it has 0 moons.
UCD641.2 is a large terrestrial planet (8925 km radius) which orbits its star in 406 Earth days, one day on UCD641.2 lasts 10 Earth hours. Its average temperature is 857 K (584 C), its atmosphere mainly consists of nitrogen, oxygen and it has 11 moons.
UCD641.3 is a large terrestrial planet (8939 km radius) which orbits its star in 747 Earth days, one day on UCD641.3 lasts 10 Earth hours. Its average temperature is 571 K (298 C), its atmosphere mainly consists of nitrogen and it has 16 moons.
UCD641.4 is a small terrestrial planet (3898 km radius) which orbits its star in 1372 Earth days, one day on UCD641.4 lasts 23 Earth hours. Its average temperature is 338 K (65 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
UCD641.5 is a medium terrestrial planet (5595 km radius) which orbits its star in 2521 Earth days, one day on UCD641.5 lasts 14 Earth hours. Its average temperature is 188 K (-85 C), its atmosphere mainly consists of nitrogen and it has 17 moons.
UCD641.6 is a very small terrestrial planet (2805 km radius) which orbits its star in 3314 Earth days, one day on UCD641.6 lasts 38 Earth hours. Its average temperature is 1902 K (1629 C), its atmosphere mainly consists of and it has 2 moons.
UCD641.7 is a small terrestrial planetoid (1368 km radius) which orbits its star in 4356 Earth days, one day on UCD641.7 lasts 143 Earth hours. Its average temperature is 1227 K (954 C), its atmosphere mainly consists of and it has 0 moons.
More planetary details...

Location

Planetary Orbits

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Planetary Statistics

planet:UCD641.1UCD641.2UCD641.3UCD641.4UCD641.5
distance from star:17*106 km74*106 km111*106 km167*106 km251*106 km
radius:4947 km8925 km8939 km3898 km5595 km
mass:968*1021 kg5687*1021 kg5714*1021 kg473*1021 kg1401*1021 kg
surface gravity: 2.63 m/s2
0.26 Earths
4.76 m/s2
0.48 Earths
4.77 m/s2
0.48 Earths
2.07 m/s2
0.21 Earths
2.98 m/s2
0.30 Earths
escape velocity:5.110 km/s9.222 km/s9.237 km/s4.024 km/s5.781 km/s
year: 62 UCD641.1 days
44 Earth days
974 UCD641.2 days
406 Earth days
1792 UCD641.3 days
747 Earth days
1431 UCD641.4 days
1372 Earth days
4321 UCD641.5 days
2521 Earth days
day:17 hrs10 hrs10 hrs23 hrs14 hrs
axial tilt:19°24°21°
temperature:1030 K
757 C
857 K
584 C
571 K
298 C
338 K
65 C
188 K
-85 C
atmosphere:83% N2
3% O2
14% CO2
0% other
84% N2
12% O2
4% CO2
0% other
92% N2
7% O2
1% CO2
0% other
55% N2
45% O2
0% other
85% N2
7% O2
8% CO2
0% other
moons:01116017
rings:00000

planet:UCD641.6UCD641.7
distance from star:302*106 km362*106 km
radius:2805 km1368 km
mass:176*1021 kg20*1021 kg
surface gravity: 1.49 m/s2
0.15 Earths
0.71 m/s2
0.07 Earths
escape velocity:2.894 km/s1.396 km/s
year: 2093 UCD641.6 days
3314 Earth days
731 UCD641.7 days
4356 Earth days
day:38 hrs143 hrs
axial tilt:113°
temperature:1902 K
1629 C
1227 K
954 C
atmosphere:100% other100% other
moons:20
rings:00

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