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NCG546: red dwarf star with 6 planets

  NCG546.1   NCG546.2  
NCG546.3
  NCG546.4   NCG546.5   NCG546.6  

Solar system 'NCG546' comprises the star 'NCG546' and the retinue of celestial objects gravitationally bound to it: 6 planets and their 487 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'NCG546', a red dwarf class star that contains about 98.74% of the system's known mass and dominates it gravitationally. NCG546 is located more than 3430 lightyears from the center of the galaxy.

This solar system comprises 6 planets

NCG546.1 is a large terrestrial planet (8378 km radius) which orbits its star in 147 Earth days, one day on NCG546.1 lasts 9 Earth hours. Its average temperature is 449 K (176 C), its atmosphere mainly consists of nitrogen, oxygen and it has 14 moons.
NCG546.2 is a very large terrestrial planet (10544 km radius) which orbits its star in 989 Earth days, one day on NCG546.2 lasts 8 Earth hours. Its average temperature is 70 K (-203 C), its atmosphere mainly consists of nitrogen, oxygen and it has 20 moons.
NCG546.3 is a massive terrestrial planet (16994 km radius) which orbits its star in 14001 Earth days, one day on NCG546.3 lasts 6 Earth hours. Its average temperature is 1191 K (918 C), its atmosphere mainly consists of hydrogen and it has 109 moons.
NCG546.4 is a large gas giant (74273 km radius) which orbits its star in 25721 Earth days, one day on NCG546.4 lasts 6 Earth hours. Its average temperature is 1029 K (756 C), its atmosphere mainly consists of hydrogen and it has 86 moons.
NCG546.5 is a large gas giant (75408 km radius) which orbits its star in 176004 Earth days, one day on NCG546.5 lasts 6 Earth hours. Its average temperature is 1698 K (1425 C), its atmosphere mainly consists of hydrogen and it has 138 moons.
NCG546.6 is a large gas giant (47631 km radius) which orbits its star in 323340 Earth days, one day on NCG546.6 lasts 6 Earth hours. Its average temperature is 1647 K (1374 C), its atmosphere mainly consists of hydrogen, helium and it has 120 moons.
More planetary details...

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Planetary Orbits

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Planetary Statistics

planet:NCG546.1NCG546.2NCG546.3NCG546.4NCG546.5
distance from star:37*106 km134*106 km789*106 km1184*106 km4268*106 km
radius:8378 km10544 km16994 km74273 km75408 km
mass:4704*1021 kg9377*1021 kg39262*1021 kg3277803*1021 kg3430380*1021 kg
surface gravity: 4.47 m/s2
0.45 Earths
5.62 m/s2
0.57 Earths
9.07 m/s2
0.92 Earths
39.6 m/s2
4.04 Earths
40.2 m/s2
4.11 Earths
escape velocity:8.657 km/s10.89 km/s17.56 km/s76.75 km/s77.92 km/s
year: 392 NCG546.1 days
147 Earth days
2967 NCG546.2 days
989 Earth days
56004 NCG546.3 days
14001 Earth days
102884 NCG546.4 days
25721 Earth days
704016 NCG546.5 days
176004 Earth days
day:9 hrs8 hrs6 hrs6 hrs6 hrs
axial tilt:
temperature:449 K
176 C
70 K
-203 C
1191 K
918 C
1029 K
756 C
1698 K
1425 C
atmosphere:75% N2
22% O2
3% CO2
0% other
6% H2
1% He
61% N2
32% O2
0% other
99% H2
1% He
0% other
96% H2
4% He
0% other
92% H2
8% He
0% other
moons:142010986138
rings:001000

planet:NCG546.6
distance from star:6402*106 km
radius:47631 km
mass:864488*1021 kg
surface gravity: 25.4 m/s2
2.59 Earths
escape velocity:49.22 km/s
year: 1293360 NCG546.6 days
323340 Earth days
day:6 hrs
axial tilt:
temperature:1647 K
1374 C
atmosphere:77% H2
23% He
0% other
moons:120
rings:0

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