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TGJ554: red giant star with 2 planets

  TGJ554.1   TGJ554.2  

Solar system 'TGJ554' is a dual star system that comprises the stars 'TGJ554.A' and 'TGJ554.B' and the retinue of celestial objects gravitationally bound to them: 2 planets and their 178 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal components of this star system are the stars 'TGJ554.A' and 'TGJ554.B' that dominate it gravitationally. 'TGJ554.A' is a red giant class star that contains about 62% of the system's known mass, 'TGJ554.B' is a red giant class star that contains about 37% of the system's known mass.

System 'TGJ554' is located more than 4025 lightyears from the center of the galaxy.

This solar system comprises 2 planets

TGJ554.1 is a small terrestrial planet (4843 km radius) which orbits its star in 23 Earth days, one day on TGJ554.1 lasts 12 Earth hours. Its average temperature is 1120 K (847 C), its atmosphere mainly consists of nitrogen and it has 0 moons.
TGJ554.2 is a medium gas giant (34524 km radius) which orbits its star in 5481 Earth days, one day on TGJ554.2 lasts 2 Earth hours. Its average temperature is 1145 K (872 C), its atmosphere mainly consists of hydrogen, helium and it has 178 moons.
More planetary details...


Planetary Orbits


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Planetary Statistics

distance from star:11*106 km422*106 km
radius:4843 km34524 km
mass:908*1021 kg329195*1021 kg
surface gravity: 2.58 m/s2
0.26 Earths
18.4 m/s2
1.88 Earths
escape velocity:5.002 km/s35.67 km/s
year: 46 TGJ554.1 days
23 Earth days
65772 TGJ554.2 days
5481 Earth days
day:12 hrs2 hrs
axial tilt:12°
temperature:1120 K
847 C
1145 K
872 C
atmosphere:87% N2
6% O2
7% CO2
0% other
89% H2
11% He
0% other

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