🌌 Stone's Star System Generator

Asteroid Belt

Center: 1.16 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.31

Radius: 1.4

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 1.86 AU - 2.76 AU

Year: 1544 Days

Day: 19.8 Hours

Environment

Temp: -141 °C

Axial Tilt: 29.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 49,411,600 km

• M1: 1,856,510 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 49.7

Radius: 12.8

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 2.26 AU - 2.76 AU

Year: 1749 Days

Day: 13.1 Hours

Environment

Temp: -141 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 49,411,600 km

• M1: 159,621 km (0.069 R)
• M2: 607,367 km (0.101 R)
• M3: 1,118,543 km (0.099 R)
• M4: 1,697,038 km (0.117 R)
• M5: 2,348,836 km (0.04 R)
• M6: 3,642,559 km (0.091 R)
• M7: 5,945,917 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 529.9

Radius: 8.4

Gravity: 7.51 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 2.73 AU - 3.21 AU

Year: 2251 Days

Day: 12.7 Hours

Environment

Temp: -157 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 49,411,600 km

• M1: 115,490 km (0.094 R)
• M2: 503,098 km (0.116 R)
• M3: 884,572 km (0.059 R)
• M4: 1,426,864 km (0.095 R)
• M5: 2,485,569 km (0.097 R)
• M6: 4,072,652 km (0.109 R)
• M7: 4,445,151 km (0.111 R)
• M8: 5,796,768 km (0.043 R)
• M9: 6,294,330 km (0.055 R)
• M10: 7,751,414 km (0.112 R)
• M11: 8,480,105 km (0.036 R)
• M12: 9,088,819 km (0.08 R)
• M13: 11,896,771 km (0.094 R)
• M14: 12,294,252 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 33.5

Radius: 10.1

Gravity: 0.33 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 2.75 AU - 3.85 AU

Year: 2636 Days

Day: 13.5 Hours

Environment

Temp: -157 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 49,411,600 km

• M1: 346,917 km (0.101 R)
• M2: 797,057 km (0.107 R)
• M3: 1,115,402 km (0.099 R)
• M4: 2,133,565 km (0.101 R)
• M5: 3,295,641 km (0.091 R)
• M6: 3,902,560 km (0.107 R)
• M7: 5,479,022 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 969.1

Radius: 13

Gravity: 5.73 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 2.68 AU - 4.26 AU

Year: 2842 Days

Day: 14.5 Hours

Environment

Temp: -162 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 49,411,600 km

• M1: 163,361 km (0.063 R)
• M2: 611,257 km (0.047 R)
• M3: 1,212,640 km (0.051 R)
• M4: 1,960,031 km (0.06 R)
• M5: 2,380,850 km (0.046 R)
• M6: 2,829,644 km (0.079 R)
• M7: 4,046,922 km (0.095 R)
• M8: 4,530,272 km (0.028 R)
• M9: 6,682,686 km (0.118 R)
• M10: 7,717,156 km (0.09 R)
• M11: 9,037,507 km (0.074 R)
• M12: 10,024,254 km (0.105 R)
• M13: 10,503,267 km (0.083 R)
• M14: 11,081,462 km (0.112 R)
• M15: 15,849,745 km (0.076 R)
• M16: 16,446,192 km (0.067 R)
• M17: 19,286,606 km (0.119 R)
• M18: 21,571,714 km (0.063 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 184.7

Radius: 14.2

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 3.21 AU - 5.21 AU

Year: 3798 Days

Day: 10 Hours

Environment

Temp: -173 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 49,411,600 km

• M1: 176,825 km (0.053 R)
• M2: 769,831 km (0.059 R)
• M3: 1,324,839 km (0.069 R)
• M4: 1,975,440 km (0.085 R)
• M5: 2,636,513 km (0.086 R)
• M6: 3,183,143 km (0.105 R)
• M7: 4,368,108 km (0.048 R)
• M8: 4,922,219 km (0.107 R)
• M9: 5,546,341 km (0.092 R)
• M10: 6,349,233 km (0.098 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 782.3

Radius: 11.3

Gravity: 6.13 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 4.29 AU - 6.05 AU

Year: 5169 Days

Day: 6 Hours

Environment

Temp: -182 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 49,411,600 km

• M1: 140,622 km (0.104 R)
• M2: 579,093 km (0.114 R)
• M3: 1,974,094 km (0.118 R)
• M4: 3,412,776 km (0.093 R)
• M5: 4,789,675 km (0.085 R)
• M6: 5,662,878 km (0.085 R)
• M7: 7,185,036 km (0.059 R)
• M8: 9,760,663 km (0.067 R)
• M9: 10,154,105 km (0.107 R)
• M10: 15,861,413 km (0.103 R)
• M11: 17,985,554 km (0.117 R)
• M12: 22,260,313 km (0.084 R)
• M13: 26,741,517 km (0.113 R)
• M14: 27,427,124 km (0.111 R)
• M15: 31,599,708 km (0.077 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 926.3

Radius: 8.7

Gravity: 12.24 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 7.56 AU - 8.86 AU

Year: 10344 Days

Day: 10.4 Hours

Environment

Temp: -203 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 49,411,600 km

• M1: 108,309 km (0.069 R)
• M2: 567,574 km (0.103 R)
• M3: 846,874 km (0.114 R)
• M4: 1,321,548 km (0.06 R)
• M5: 1,643,333 km (0.101 R)
• M6: 3,244,179 km (0.045 R)
• M7: 4,380,076 km (0.115 R)
• M8: 4,811,965 km (0.096 R)
• M9: 5,409,010 km (0.09 R)
• M10: 5,870,220 km (0.081 R)
• M11: 7,034,989 km (0.08 R)
• M12: 9,109,912 km (0.06 R)
• M13: 11,163,891 km (0.075 R)
• M14: 11,853,537 km (0.059 R)
• M15: 13,961,670 km (0.067 R)
• M16: 14,762,019 km (0.106 R)
• M17: 17,574,907 km (0.083 R)
• M18: 18,666,374 km (0.077 R)
• M19: 19,066,847 km (0.099 R)
• M20: 20,051,500 km (0.085 R)
• M21: 21,156,131 km (0.09 R)
• M22: 23,393,367 km (0.094 R)
• M23: 24,331,046 km (0.079 R)
• M24: 25,783,941 km (0.062 R)
• M25: 26,784,152 km (0.115 R)
• M26: 27,089,332 km (0.081 R)
• M27: 28,649,488 km (0.107 R)
• M28: 38,508,437 km (0.118 R)
• M29: 39,419,637 km (0.073 R)
• M30: 46,643,419 km (0.098 R)
• M31: 47,678,487 km (0.057 R)
• M32: 48,126,832 km (0.105 R)
• M33: 49,031,899 km (0.089 R)
• M34: 49,641,510 km (0.094 R)

Planet 9 - Gas Giant

Semi-Major Axis: 9.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 474.8

Radius: 12.7

Gravity: 2.94 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 8.79 AU - 9.91 AU

Year: 12571 Days

Day: 10.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 49,411,600 km

• M1: 157,975 km (0.115 R)
• M2: 569,968 km (0.073 R)
• M3: 1,741,768 km (0.047 R)
• M4: 4,128,901 km (0.114 R)
• M5: 4,557,050 km (0.052 R)
• M6: 5,846,734 km (0.1 R)
• M7: 6,729,959 km (0.075 R)
• M8: 9,279,406 km (0.119 R)
• M9: 12,298,591 km (0.099 R)
• M10: 16,408,642 km (0.076 R)
• M11: 18,237,028 km (0.072 R)
• M12: 20,853,794 km (0.076 R)
• M13: 22,731,546 km (0.094 R)
• M14: 23,711,562 km (0.103 R)
• M15: 25,565,379 km (0.039 R)
• M16: 32,146,338 km (0.111 R)
• M17: 32,591,691 km (0.086 R)
• M18: 33,494,664 km (0.05 R)
• M19: 39,520,466 km (0.075 R)
• M20: 40,031,642 km (0.107 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 233 - 18,290 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit