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RFD820: yellow dwarf star with 8 planets

  RFD820.1   RFD820.2   RFD820.3   RFD820.4  
RFD820.5
 
RFD820.6
 
RFD820.7
  RFD820.8  

Solar system 'RFD820' is a dual star system that comprises the stars 'RFD820.A' and 'RFD820.B' and the retinue of celestial objects gravitationally bound to them: 8 planets and their 479 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal components of this star system are the stars 'RFD820.A' and 'RFD820.B' that dominate it gravitationally. 'RFD820.A' is a yellow dwarf class star that contains about 99% of the system's known mass, 'RFD820.B' is a brown dwarf class star that contains about 0% of the system's known mass.

System 'RFD820' is located more than 403 lightyears from the center of the galaxy.

RFD820.4, the fourth planet in this system, may feature life forms. Its average temperature is 297K (24C) and it's atmosphere contains 26% of oxygen. One year on RFD820.4 lasts 1237 days, one day lasts 12 hours. It's diameter is 14478 km, 1.1 times the diameter of the Earth.

This solar system comprises 8 planets

RFD820.1 is a small terrestrial planet (3837 km radius) which orbits its star in 111 Earth days, one day on RFD820.1 lasts 25 Earth hours. Its average temperature is 1853 K (1580 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
RFD820.2 is a very small terrestrial planet (2479 km radius) which orbits its star in 227 Earth days, one day on RFD820.2 lasts 48 Earth hours. Its average temperature is 1424 K (1151 C), its atmosphere mainly consists of nitrogen, carbon dioxide and it has 0 moons.
RFD820.3 is a very large terrestrial planet (11198 km radius) which orbits its star in 673 Earth days, one day on RFD820.3 lasts 9 Earth hours. Its average temperature is 502 K (229 C), its atmosphere mainly consists of nitrogen, oxygen and it has 15 moons.
RFD820.4 is a large terrestrial planet (7239 km radius) which orbits its star in 1237 Earth days, one day on RFD820.4 lasts 12 Earth hours. Its average temperature is 297 K (24 C), its atmosphere mainly consists of nitrogen, oxygen and it has 29 moons.
RFD820.5 is a large gas giant (49350 km radius) which orbits its star in 79890 Earth days, one day on RFD820.5 lasts 8 Earth hours. Its average temperature is 1777 K (1504 C), its atmosphere mainly consists of hydrogen, helium and it has 124 moons.
RFD820.6 is a large gas giant (53872 km radius) which orbits its star in 192344 Earth days, one day on RFD820.6 lasts 8 Earth hours. Its average temperature is 1866 K (1593 C), its atmosphere mainly consists of hydrogen, helium and it has 128 moons.
RFD820.7 is a medium gas giant (28354 km radius) which orbits its star in 353360 Earth days, one day on RFD820.7 lasts 8 Earth hours. Its average temperature is 1559 K (1286 C), its atmosphere mainly consists of hydrogen, helium and it has 88 moons.
RFD820.8 is a large gas giant (71910 km radius) which orbits its star in 649164 Earth days, one day on RFD820.8 lasts 8 Earth hours. Its average temperature is 1312 K (1039 C), its atmosphere mainly consists of hydrogen and it has 95 moons.
More planetary details...

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Planetary Orbits

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Planetary Statistics

planet:RFD820.1RFD820.2RFD820.3RFD820.4RFD820.5
distance from star:31*106 km50*106 km104*106 km156*106 km2520*106 km
radius:3837 km2479 km11198 km7239 km49350 km
mass:451*1021 kg121*1021 kg11233*1021 kg3034*1021 kg961504*1021 kg
surface gravity: 2.04 m/s2
0.20 Earths
1.31 m/s2
0.13 Earths
5.97 m/s2
0.61 Earths
3.86 m/s2
0.39 Earths
26.3 m/s2
2.68 Earths
escape velocity:3.961 km/s2.552 km/s11.57 km/s7.479 km/s50.99 km/s
year: 106 RFD820.1 days
111 Earth days
113 RFD820.2 days
227 Earth days
1794 RFD820.3 days
673 Earth days
2474 RFD820.4 days
1237 Earth days
239670 RFD820.5 days
79890 Earth days
day:25 hrs48 hrs9 hrs12 hrs8 hrs
axial tilt:15°19°
temperature:1853 K
1580 C
1424 K
1151 C
502 K
229 C
297 K
24 C
1777 K
1504 C
atmosphere:7% H2
1% He
45% N2
46% O2
1% CO2
0% other
70% N2
2% O2
28% CO2
0% other
1% H2
2% He
76% N2
21% O2
0% other
72% N2
26% O2
2% CO2
0% other
85% H2
15% He
0% other
moons:001529124
rings:00003

planet:RFD820.6RFD820.7RFD820.8
distance from star:4528*106 km6792*106 km10188*106 km
radius:53872 km28354 km71910 km
mass:1250775*1021 kg182361*1021 kg2974800*1021 kg
surface gravity: 28.7 m/s2
2.93 Earths
15.1 m/s2
1.54 Earths
38.3 m/s2
3.91 Earths
escape velocity:55.67 km/s29.30 km/s74.31 km/s
year: 577032 RFD820.6 days
192344 Earth days
1060080 RFD820.7 days
353360 Earth days
1947492 RFD820.8 days
649164 Earth days
day:8 hrs8 hrs8 hrs
axial tilt:
temperature:1866 K
1593 C
1559 K
1286 C
1312 K
1039 C
atmosphere:84% H2
16% He
0% other
79% H2
21% He
0% other
94% H2
6% He
0% other
moons:1288895
rings:12190

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