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LKJ749: yellow dwarf star with 16 planets

 
LKJ749.1
  LKJ749.2   LKJ749.3   LKJ749.4   LKJ749.5   LKJ749.6   LKJ749.7   LKJ749.8   LKJ749.9  
LKJ749.10
 
LKJ749.11
 
LKJ749.12
  LKJ749.13  
LKJ749.14
 
LKJ749.15
 
LKJ749.16
 

Solar system 'LKJ749' comprises the star 'LKJ749' and the retinue of celestial objects gravitationally bound to it: 16 planets and their 1133 moons, as well as asteroids, meteoroids, planetoids, comets, and interplanetary dust.

The principal component of this star system is the star 'LKJ749', a yellow dwarf class star that contains about 99.56% of the system's known mass and dominates it gravitationally. LKJ749 is located more than 2073 lightyears from the center of the galaxy.

LKJ749.5, the fifth planet in this system, may feature life forms. Its average temperature is 329K (56C) and it's atmosphere contains 39% of oxygen. One year on LKJ749.5 lasts 1611 days, one day lasts 19 hours. It's diameter is 17316 km, 1.3 times the diameter of the Earth.

This solar system comprises 16 planets

LKJ749.1 is a medium terrestrial planet (6580 km radius) which orbits its star in 74 Earth days, one day on LKJ749.1 lasts 21 Earth hours. Its average temperature is 1978 K (1705 C), its atmosphere mainly consists of nitrogen, oxygen and it has 3 moons.
LKJ749.2 is a medium terrestrial planet (6210 km radius) which orbits its star in 176 Earth days, one day on LKJ749.2 lasts 22 Earth hours. Its average temperature is 1261 K (988 C), its atmosphere mainly consists of nitrogen, oxygen and it has 5 moons.
LKJ749.3 is a large terrestrial planet (8055 km radius) which orbits its star in 477 Earth days, one day on LKJ749.3 lasts 19 Earth hours. Its average temperature is 1001 K (728 C), its atmosphere mainly consists of nitrogen, oxygen and it has 28 moons.
LKJ749.4 is a medium terrestrial planet (6001 km radius) which orbits its star in 877 Earth days, one day on LKJ749.4 lasts 22 Earth hours. Its average temperature is 593 K (320 C), its atmosphere mainly consists of nitrogen and it has 21 moons.
LKJ749.5 is a large terrestrial planet (8658 km radius) which orbits its star in 1611 Earth days, one day on LKJ749.5 lasts 19 Earth hours. Its average temperature is 329 K (56 C), its atmosphere mainly consists of nitrogen, oxygen and it has 43 moons.
LKJ749.6 is a medium terrestrial planet (6001 km radius) which orbits its star in 2960 Earth days, one day on LKJ749.6 lasts 22 Earth hours. Its average temperature is 175 K (-98 C), its atmosphere mainly consists of nitrogen, oxygen and it has 3 moons.
LKJ749.7 is a very large terrestrial planet (11794 km radius) which orbits its star in 5438 Earth days, one day on LKJ749.7 lasts 17 Earth hours. Its average temperature is 91 K (-182 C), its atmosphere mainly consists of hydrogen, nitrogen, oxygen and it has 44 moons.
LKJ749.8 is a very large terrestrial planet (9804 km radius) which orbits its star in 9992 Earth days, one day on LKJ749.8 lasts 18 Earth hours. Its average temperature is 46 K (-227 C), its atmosphere mainly consists of nitrogen and it has 34 moons.
LKJ749.9 is a large gas giant (58843 km radius) which orbits its star in 70098 Earth days, one day on LKJ749.9 lasts 16 Earth hours. Its average temperature is 1060 K (787 C), its atmosphere mainly consists of hydrogen and it has 149 moons.
LKJ749.10 is a large gas giant (65237 km radius) which orbits its star in 128779 Earth days, one day on LKJ749.10 lasts 16 Earth hours. Its average temperature is 1075 K (802 C), its atmosphere mainly consists of hydrogen and it has 138 moons.
LKJ749.11 is a large gas giant (40540 km radius) which orbits its star in 244755 Earth days, one day on LKJ749.11 lasts 16 Earth hours. Its average temperature is 1739 K (1466 C), its atmosphere mainly consists of hydrogen, helium and it has 128 moons.
LKJ749.12 is a large gas giant (64513 km radius) which orbits its star in 449644 Earth days, one day on LKJ749.12 lasts 16 Earth hours. Its average temperature is 1597 K (1324 C), its atmosphere mainly consists of hydrogen, helium and it has 103 moons.
LKJ749.13 is a large gas giant (44803 km radius) which orbits its star in 826048 Earth days, one day on LKJ749.13 lasts 16 Earth hours. Its average temperature is 1175 K (902 C), its atmosphere mainly consists of hydrogen, helium and it has 103 moons.
LKJ749.14 is a large gas giant (51136 km radius) which orbits its star in 1517548 Earth days, one day on LKJ749.14 lasts 16 Earth hours. Its average temperature is 1340 K (1067 C), its atmosphere mainly consists of hydrogen, helium and it has 100 moons.
LKJ749.15 is a large terrestrial planet (8791 km radius) which orbits its star in 2787915 Earth days, one day on LKJ749.15 lasts 19 Earth hours. Its average temperature is 1763 K (1490 C), its atmosphere mainly consists of hydrogen, helium and it has 129 moons.
LKJ749.16 is a large gas giant (51422 km radius) which orbits its star in 5121727 Earth days, one day on LKJ749.16 lasts 16 Earth hours. Its average temperature is 1192 K (919 C), its atmosphere mainly consists of hydrogen, helium and it has 102 moons.
More planetary details...

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Planetary Orbits

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Planetary Statistics

planet:LKJ749.1LKJ749.2LKJ749.3LKJ749.4LKJ749.5
distance from star:24*106 km42*106 km83*106 km124*106 km186*106 km
radius:6580 km6210 km8055 km6001 km8658 km
mass:2279*1021 kg1915*1021 kg4181*1021 kg1728*1021 kg5192*1021 kg
surface gravity: 3.51 m/s2
0.35 Earths
3.31 m/s2
0.33 Earths
4.30 m/s2
0.43 Earths
3.20 m/s2
0.32 Earths
4.62 m/s2
0.47 Earths
escape velocity:6.799 km/s6.415 km/s8.323 km/s6.199 km/s8.946 km/s
year: 84 LKJ749.1 days
74 Earth days
192 LKJ749.2 days
176 Earth days
602 LKJ749.3 days
477 Earth days
956 LKJ749.4 days
877 Earth days
2034 LKJ749.5 days
1611 Earth days
day:21 hrs22 hrs19 hrs22 hrs19 hrs
axial tilt:15°10°81°
temperature:1978 K
1705 C
1261 K
988 C
1001 K
728 C
593 K
320 C
329 K
56 C
atmosphere:3% H2
1% He
73% N2
19% O2
4% CO2
0% other
1% H2
1% He
75% N2
23% O2
0% other
54% N2
46% O2
0% other
90% N2
10% O2
0% other
7% H2
3% He
49% N2
39% O2
2% CO2
0% other
moons:35282143
rings:50000

planet:LKJ749.6LKJ749.7LKJ749.8LKJ749.9LKJ749.10
distance from star:280*106 km420*106 km630*106 km2310*106 km3465*106 km
radius:6001 km11794 km9804 km58843 km65237 km
mass:1728*1021 kg13124*1021 kg7538*1021 kg1629950*1021 kg2221119*1021 kg
surface gravity: 3.20 m/s2
0.32 Earths
6.29 m/s2
0.64 Earths
5.23 m/s2
0.53 Earths
31.4 m/s2
3.21 Earths
34.8 m/s2
3.55 Earths
escape velocity:6.199 km/s12.18 km/s10.13 km/s60.80 km/s67.41 km/s
year: 3229 LKJ749.6 days
2960 Earth days
7677 LKJ749.7 days
5438 Earth days
13322 LKJ749.8 days
9992 Earth days
105147 LKJ749.9 days
70098 Earth days
193168 LKJ749.10 days
128779 Earth days
day:22 hrs17 hrs18 hrs16 hrs16 hrs
axial tilt:14°14°
temperature:175 K
-98 C
91 K
-182 C
46 K
-227 C
1060 K
787 C
1075 K
802 C
atmosphere:1% He
79% N2
20% O2
0% other
11% H2
2% He
44% N2
42% O2
1% CO2
0% other
96% N2
4% O2
0% other
99% H2
1% He
0% other
96% H2
4% He
0% other
moons:34434149138
rings:000014

planet:LKJ749.11LKJ749.12LKJ749.13LKJ749.14LKJ749.15
distance from star:5317*106 km7976*106 km11964*106 km17946*106 km26920*106 km
radius:40540 km64513 km44803 km51136 km8791 km
mass:533017*1021 kg2147987*1021 kg719467*1021 kg1069720*1021 kg5435*1021 kg
surface gravity: 21.6 m/s2
2.20 Earths
34.4 m/s2
3.51 Earths
23.9 m/s2
2.44 Earths
27.3 m/s2
2.79 Earths
4.69 m/s2
0.47 Earths
escape velocity:41.89 km/s66.66 km/s46.29 km/s52.84 km/s9.084 km/s
year: 367132 LKJ749.11 days
244755 Earth days
674466 LKJ749.12 days
449644 Earth days
1239072 LKJ749.13 days
826048 Earth days
2276322 LKJ749.14 days
1517548 Earth days
3521576 LKJ749.15 days
2787915 Earth days
day:16 hrs16 hrs16 hrs16 hrs19 hrs
axial tilt:85°50°
temperature:1739 K
1466 C
1597 K
1324 C
1175 K
902 C
1340 K
1067 C
1763 K
1490 C
atmosphere:81% H2
19% He
0% other
76% H2
24% He
0% other
77% H2
23% He
0% other
86% H2
14% He
0% other
84% H2
16% He
0% other
moons:128103103100129
rings:10150218

planet:LKJ749.16
distance from star:40380*106 km
radius:51422 km
mass:1087769*1021 kg
surface gravity: 27.4 m/s2
2.80 Earths
escape velocity:53.13 km/s
year: 7682590 LKJ749.16 days
5121727 Earth days
day:16 hrs
axial tilt:
temperature:1192 K
919 C
atmosphere:77% H2
23% He
0% other
moons:102
rings:2

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