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MCG554: yellow dwarf star with 5 planets

  MCG554.1  
MCG554.2
 
MCG554.3
 
MCG554.4
  MCG554.5  

Solar system 'MCG554' comprises the star 'MCG554' and the retinue of celestial objects gravitationally bound to it: 5 planets and their 395 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'MCG554', a yellow dwarf class star that contains about 99.93% of the system's known mass and dominates it gravitationally. MCG554 is located more than 2819 lightyears from the center of the galaxy.

This solar system comprises 5 planets

MCG554.1 is a small terrestrial planet (4523 km radius) which orbits its star in 4 Earth days, one day on MCG554.1 lasts 17 Earth hours. Its average temperature is 1826 K (1553 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
MCG554.2 is a medium gas giant (34390 km radius) which orbits its star in 1903 Earth days, one day on MCG554.2 lasts 5 Earth hours. Its average temperature is 1464 K (1191 C), its atmosphere mainly consists of hydrogen, helium and it has 150 moons.
MCG554.3 is a medium gas giant (36187 km radius) which orbits its star in 48027 Earth days, one day on MCG554.3 lasts 5 Earth hours. Its average temperature is 1208 K (935 C), its atmosphere mainly consists of hydrogen and it has 132 moons.
MCG554.4 is a large gas giant (48626 km radius) which orbits its star in 167961 Earth days, one day on MCG554.4 lasts 5 Earth hours. Its average temperature is 1253 K (980 C), its atmosphere mainly consists of hydrogen, helium and it has 100 moons.
MCG554.5 is a small terrestrial planetoid (1782 km radius) which orbits its star in 220790 Earth days, one day on MCG554.5 lasts 84 Earth hours. Its average temperature is 1633 K (1360 C), its atmosphere mainly consists of and it has 13 moons.
More planetary details...

Location

Planetary Orbits

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Planetary Statistics

planet:MCG554.1MCG554.2MCG554.3MCG554.4MCG554.5
distance from star:3*106 km208*106 km1795*106 km4137*106 km4964*106 km
radius:4523 km34390 km36187 km48626 km1782 km
mass:740*1021 kg325376*1021 kg379094*1021 kg919804*1021 kg45*1021 kg
surface gravity: 2.41 m/s2
0.24 Earths
18.3 m/s2
1.87 Earths
19.3 m/s2
1.97 Earths
25.9 m/s2
2.64 Earths
0.94 m/s2
0.09 Earths
escape velocity:4.673 km/s35.53 km/s37.39 km/s50.24 km/s1.835 km/s
year: 5 MCG554.1 days
4 Earth days
9134 MCG554.2 days
1903 Earth days
230529 MCG554.3 days
48027 Earth days
806212 MCG554.4 days
167961 Earth days
63082 MCG554.5 days
220790 Earth days
day:17 hrs5 hrs5 hrs5 hrs84 hrs
axial tilt:24°349°
temperature:1826 K
1553 C
1464 K
1191 C
1208 K
935 C
1253 K
980 C
1633 K
1360 C
atmosphere:87% N2
12% O2
1% CO2
0% other
81% H2
19% He
0% other
91% H2
9% He
0% other
87% H2
13% He
0% other
100% other
moons:015013210013
rings:05590

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