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MAC277: red giant star with 12 planets

  MAC277.1   MAC277.2   MAC277.3   MAC277.4   MAC277.5   MAC277.6   MAC277.7   MAC277.8   MAC277.9  
MAC277.10
  MAC277.11   MAC277.12  

Solar system 'MAC277' comprises the star 'MAC277' and the retinue of celestial objects gravitationally bound to it: 12 planets and their 384 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'MAC277', a red giant class star that contains about 99.99% of the system's known mass and dominates it gravitationally. MAC277 is located more than 5146 lightyears from the center of the galaxy.

MAC277.8, the eight planet in this system, may feature life forms. Its average temperature is 287K (14C) and it's atmosphere contains 7% of oxygen. One year on MAC277.8 lasts 10728 days, one day lasts 29 hours. It's diameter is 7606 km, 0.5 times the diameter of the Earth.

This solar system comprises 12 planets

MAC277.1 is a very small terrestrial planet (2118 km radius) which orbits its star in 4 Earth days, one day on MAC277.1 lasts 67 Earth hours. Its average temperature is 1146 K (873 C), its atmosphere mainly consists of nitrogen, oxygen and it has 0 moons.
MAC277.2 is a medium terrestrial planet (6400 km radius) which orbits its star in 279 Earth days, one day on MAC277.2 lasts 18 Earth hours. Its average temperature is 1164 K (891 C), its atmosphere mainly consists of nitrogen, oxygen and it has 7 moons.
MAC277.3 is a very large terrestrial planet (10954 km radius) which orbits its star in 512 Earth days, one day on MAC277.3 lasts 14 Earth hours. Its average temperature is 1553 K (1280 C), its atmosphere mainly consists of nitrogen, oxygen and it has 22 moons.
MAC277.4 is a medium terrestrial planet (5245 km radius) which orbits its star in 941 Earth days, one day on MAC277.4 lasts 21 Earth hours. Its average temperature is 1840 K (1567 C), its atmosphere mainly consists of nitrogen and it has 13 moons.
MAC277.5 is a very large terrestrial planet (10986 km radius) which orbits its star in 1730 Earth days, one day on MAC277.5 lasts 14 Earth hours. Its average temperature is 1022 K (749 C), its atmosphere mainly consists of nitrogen and it has 20 moons.
MAC277.6 is a very large terrestrial planet (9464 km radius) which orbits its star in 3178 Earth days, one day on MAC277.6 lasts 14 Earth hours. Its average temperature is 1090 K (817 C), its atmosphere mainly consists of nitrogen, oxygen and it has 18 moons.
MAC277.7 is a very large terrestrial planet (9018 km radius) which orbits its star in 5839 Earth days, one day on MAC277.7 lasts 15 Earth hours. Its average temperature is 565 K (292 C), its atmosphere mainly consists of nitrogen, oxygen and it has 34 moons.
MAC277.8 is a small terrestrial planet (3803 km radius) which orbits its star in 10728 Earth days, one day on MAC277.8 lasts 29 Earth hours. Its average temperature is 287 K (14 C), its atmosphere mainly consists of nitrogen and it has 18 moons.
MAC277.9 is a very large terrestrial planet (11253 km radius) which orbits its star in 19709 Earth days, one day on MAC277.9 lasts 13 Earth hours. Its average temperature is 143 K (-130 C), its atmosphere mainly consists of nitrogen, oxygen and it has 30 moons.
MAC277.10 is a massive terrestrial planet (16453 km radius) which orbits its star in 42795 Earth days, one day on MAC277.10 lasts 12 Earth hours. Its average temperature is 1928 K (1655 C), its atmosphere mainly consists of hydrogen, helium and it has 151 moons.
MAC277.11 is a medium terrestrial planet (6946 km radius) which orbits its star in 56256 Earth days, one day on MAC277.11 lasts 17 Earth hours. Its average temperature is 1357 K (1084 C), its atmosphere mainly consists of and it has 49 moons.
MAC277.12 is a small terrestrial planet (4143 km radius) which orbits its star in 73951 Earth days, one day on MAC277.12 lasts 26 Earth hours. Its average temperature is 1795 K (1522 C), its atmosphere mainly consists of and it has 22 moons.
More planetary details...

Location

Planetary Orbits

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Planetary Statistics

planet:MAC277.1MAC277.2MAC277.3MAC277.4MAC277.5
distance from star:3*106 km58*106 km87*106 km130*106 km195*106 km
radius:2118 km6400 km10954 km5245 km10986 km
mass:76*1021 kg2097*1021 kg10514*1021 kg1154*1021 kg10607*1021 kg
surface gravity: 1.13 m/s2
0.11 Earths
3.41 m/s2
0.34 Earths
5.84 m/s2
0.59 Earths
2.79 m/s2
0.28 Earths
5.86 m/s2
0.59 Earths
escape velocity:2.188 km/s6.613 km/s11.31 km/s5.419 km/s11.35 km/s
year: 1 MAC277.1 days
4 Earth days
372 MAC277.2 days
279 Earth days
877 MAC277.3 days
512 Earth days
1075 MAC277.4 days
941 Earth days
2965 MAC277.5 days
1730 Earth days
day:67 hrs18 hrs14 hrs21 hrs14 hrs
axial tilt:16°306°19°21°
temperature:1146 K
873 C
1164 K
891 C
1553 K
1280 C
1840 K
1567 C
1022 K
749 C
atmosphere:2% H2
1% He
73% N2
20% O2
4% CO2
0% other
81% N2
12% O2
7% CO2
0% other
7% H2
2% He
70% N2
21% O2
0% other
85% N2
8% O2
7% CO2
0% other
90% N2
9% O2
1% CO2
0% other
moons:07221320
rings:00000

planet:MAC277.6MAC277.7MAC277.8MAC277.9MAC277.10
distance from star:293*106 km440*106 km661*106 km991*106 km1662*106 km
radius:9464 km9018 km3803 km11253 km16453 km
mass:6781*1021 kg5867*1021 kg440*1021 kg11399*1021 kg35630*1021 kg
surface gravity: 5.05 m/s2
0.51 Earths
4.81 m/s2
0.49 Earths
2.03 m/s2
0.20 Earths
6.00 m/s2
0.61 Earths
8.78 m/s2
0.89 Earths
escape velocity:9.779 km/s9.319 km/s3.929 km/s11.62 km/s17.00 km/s
year: 5448 MAC277.6 days
3178 Earth days
9342 MAC277.7 days
5839 Earth days
8878 MAC277.8 days
10728 Earth days
36385 MAC277.9 days
19709 Earth days
85590 MAC277.10 days
42795 Earth days
day:14 hrs15 hrs29 hrs13 hrs12 hrs
axial tilt:11°27°21°
temperature:1090 K
817 C
565 K
292 C
287 K
14 C
143 K
-130 C
1928 K
1655 C
atmosphere:65% N2
33% O2
2% CO2
0% other
69% N2
29% O2
2% CO2
0% other
93% N2
7% O2
0% other
2% H2
1% He
54% N2
42% O2
1% CO2
0% other
89% H2
11% He
0% other
moons:18341830151
rings:000021

planet:MAC277.11MAC277.12
distance from star:1995*106 km2394*106 km
radius:6946 km4143 km
mass:2680*1021 kg568*1021 kg
surface gravity: 3.70 m/s2
0.37 Earths
2.20 m/s2
0.22 Earths
escape velocity:7.176 km/s4.277 km/s
year: 79420 MAC277.11 days
56256 Earth days
68262 MAC277.12 days
73951 Earth days
day:17 hrs26 hrs
axial tilt:19°19°
temperature:1357 K
1084 C
1795 K
1522 C
atmosphere:100% other100% other
moons:4922
rings:00

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