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QJK878: red supergiant star with 2 planets

  QJK878.1   QJK878.2  

Solar system 'QJK878' is a dual star system that comprises the stars 'QJK878.A' and 'QJK878.B' and the retinue of celestial objects gravitationally bound to them: 2 planets and their 3 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal components of this star system are the stars 'QJK878.A' and 'QJK878.B' that dominate it gravitationally. 'QJK878.A' is a red supergiant class star that contains about 87% of the system's known mass, 'QJK878.B' is a red giant class star that contains about 12% of the system's known mass.

System 'QJK878' is located more than 2705 lightyears from the center of the galaxy.

This solar system comprises 2 planets

QJK878.1 is a large terrestrial planet (7776 km radius) which orbits its star in 346 Earth days, one day on QJK878.1 lasts 6 Earth hours. Its average temperature is 1070 K (797 C), its atmosphere mainly consists of nitrogen, oxygen and it has 3 moons.
QJK878.2 is a small terrestrial planet (3380 km radius) which orbits its star in 636 Earth days, one day on QJK878.2 lasts 23 Earth hours. Its average temperature is 1903 K (1630 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
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Planetary Orbits

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Planetary Statistics

planet:QJK878.1QJK878.2
distance from star:67*106 km100*106 km
radius:7776 km3380 km
mass:3761*1021 kg308*1021 kg
surface gravity: 4.15 m/s2
0.42 Earths
1.79 m/s2
0.18 Earths
escape velocity:8.035 km/s3.487 km/s
year: 1384 QJK878.1 days
346 Earth days
663 QJK878.2 days
636 Earth days
day:6 hrs23 hrs
axial tilt:261°11°
temperature:1070 K
797 C
1903 K
1630 C
atmosphere:1% He
75% N2
22% O2
2% CO2
0% other
5% H2
2% He
64% N2
29% O2
0% other
moons:30
rings:00

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