🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 255.7

Radius: 10.8

Gravity: 2.19 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 0.68 AU - 0.82 AU

Year: 426 Days

Day: 6.4 Hours

Environment

Temp: -149 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 38,510,371 km

• M1: 134,339 km (0.102 R)
• M2: 481,556 km (0.033 R)
• M3: 819,946 km (0.066 R)
• M4: 1,248,544 km (0.091 R)
• M5: 1,746,106 km (0.079 R)
• M6: 2,090,929 km (0.094 R)
• M7: 2,558,872 km (0.065 R)
• M8: 2,988,367 km (0.089 R)
• M9: 3,412,926 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 839.9

Radius: 14.9

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.73 AU - 1.81 AU

Year: 1545 Days

Day: 13.2 Hours

Environment

Temp: -183 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 38,510,371 km

• M1: 185,352 km (0.12 R)
• M2: 658,829 km (0.098 R)
• M3: 1,419,235 km (0.097 R)
• M4: 2,788,056 km (0.043 R)
• M5: 3,431,177 km (0.085 R)
• M6: 3,902,111 km (0.112 R)
• M7: 4,591,607 km (0.059 R)
• M8: 6,948,223 km (0.053 R)
• M9: 8,585,272 km (0.119 R)
• M10: 11,139,955 km (0.069 R)
• M11: 12,145,402 km (0.093 R)
• M12: 13,169,998 km (0.108 R)
• M13: 14,039,162 km (0.117 R)
• M14: 14,770,396 km (0.091 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 150.3

Radius: 8.6

Gravity: 2.03 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 2.16 AU - 2.94 AU

Year: 2671 Days

Day: 8.1 Hours

Environment

Temp: -189 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 38,510,371 km

• M1: 106,962 km (0.06 R)
• M2: 409,001 km (0.107 R)
• M3: 694,433 km (0.109 R)
• M4: 987,496 km (0.035 R)
• M5: 1,263,803 km (0.048 R)
• M6: 1,836,463 km (0.104 R)
• M7: 2,227,811 km (0.098 R)
• M8: 2,547,801 km (0.077 R)
• M9: 3,222,338 km (0.067 R)
• M10: 3,843,768 km (0.087 R)
• M11: 4,183,355 km (0.097 R)
• M12: 4,450,985 km (0.063 R)
• M13: 5,303,394 km (0.032 R)
• M14: 6,123,639 km (0.047 R)
• M15: 6,399,498 km (0.072 R)
• M16: 6,755,989 km (0.104 R)
• M17: 10,136,303 km (0.101 R)
• M18: 10,720,483 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 722.9

Radius: 10.1

Gravity: 7.09 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 3.28 AU - 4.44 AU

Year: 4975 Days

Day: 7.3 Hours

Environment

Temp: -207 °C

Axial Tilt: 24.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 38,510,371 km

• M1: 126,410 km (0.049 R)
• M2: 516,561 km (0.106 R)
• M3: 1,671,307 km (0.085 R)
• M4: 2,338,215 km (0.094 R)
• M5: 4,055,449 km (0.118 R)
• M6: 5,513,130 km (0.065 R)
• M7: 6,553,284 km (0.107 R)
• M8: 6,950,167 km (0.085 R)
• M9: 8,661,268 km (0.114 R)
• M10: 9,303,192 km (0.117 R)
• M11: 10,281,263 km (0.03 R)
• M12: 11,420,451 km (0.058 R)
• M13: 12,390,743 km (0.026 R)
• M14: 13,626,720 km (0.098 R)
• M15: 16,827,516 km (0.037 R)
• M16: 17,384,918 km (0.108 R)
• M17: 20,849,605 km (0.115 R)
• M18: 21,564,982 km (0.072 R)
• M19: 24,120,113 km (0.066 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 678.6

Radius: 13.8

Gravity: 3.56 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 4.11 AU - 5.27 AU

Year: 6663 Days

Day: 8.6 Hours

Environment

Temp: -205 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 38,510,371 km

• M1: 171,589 km (0.056 R)
• M2: 738,565 km (0.109 R)
• M3: 1,221,317 km (0.109 R)
• M4: 1,850,226 km (0.027 R)
• M5: 2,672,117 km (0.107 R)
• M6: 3,117,021 km (0.075 R)
• M7: 3,589,152 km (0.102 R)
• M8: 4,492,424 km (0.111 R)
• M9: 5,098,295 km (0.109 R)
• M10: 5,572,969 km (0.117 R)
• M11: 6,273,836 km (0.101 R)
• M12: 8,086,812 km (0.053 R)
• M13: 9,417,336 km (0.12 R)
• M14: 14,112,016 km (0.115 R)
• M15: 15,294,438 km (0.116 R)
• M16: 15,909,883 km (0.107 R)
• M17: 16,929,093 km (0.095 R)
• M18: 17,654,793 km (0.096 R)
• M19: 20,916,176 km (0.08 R)
• M20: 24,310,252 km (0.065 R)
• M21: 25,662,019 km (0.074 R)
• M22: 26,974,142 km (0.088 R)
• M23: 27,601,555 km (0.076 R)
• M24: 28,979,052 km (0.067 R)
• M25: 32,673,073 km (0.077 R)
• M26: 33,901,869 km (0.09 R)
• M27: 35,910,370 km (0.095 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 803.9

Radius: 6.2

Gravity: 20.91 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 5.08 AU - 7.32 AU

Year: 10127 Days

Day: 21.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 38,510,371 km

• M1: 94,546 km (0.092 R)
• M2: 583,132 km (0.111 R)
• M3: 1,206,656 km (0.054 R)
• M4: 1,579,155 km (0.107 R)
• M5: 3,097,125 km (0.087 R)
• M6: 4,040,788 km (0.118 R)
• M7: 5,813,672 km (0.109 R)
• M8: 6,594,873 km (0.119 R)
• M9: 10,165,325 km (0.03 R)
• M10: 14,058,460 km (0.104 R)
• M11: 14,847,289 km (0.112 R)
• M12: 19,963,836 km (0.117 R)
• M13: 26,933,301 km (0.119 R)
• M14: 28,560,627 km (0.089 R)
• M15: 32,234,003 km (0.061 R)
• M16: 35,485,961 km (0.094 R)
• M17: 39,980,031 km (0.09 R)
• M18: 41,425,296 km (0.062 R)
• M19: 41,959,360 km (0.101 R)
• M20: 43,041,252 km (0.047 R)
• M21: 45,685,245 km (0.076 R)
• M22: 48,583,255 km (0.104 R)
• M23: 50,988,041 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 70.7

Radius: 4.4

Gravity: 3.65 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 9.48 AU - 11.58 AU

Year: 22416 Days

Day: 18.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 64.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 38,510,371 km

• M1: 74,350 km (0.058 R)
• M2: 486,941 km (0.091 R)
• M3: 954,285 km (0.096 R)
• M4: 2,783,418 km (0.071 R)
• M5: 4,202,204 km (0.097 R)
• M6: 6,771,996 km (0.109 R)
• M7: 8,237,158 km (0.116 R)
• M8: 8,655,284 km (0.064 R)
• M9: 9,043,490 km (0.084 R)
• M10: 9,579,200 km (0.098 R)
• M11: 10,373,715 km (0.114 R)
• M12: 12,964,301 km (0.106 R)
• M13: 15,137,958 km (0.057 R)
• M14: 17,886,071 km (0.12 R)
• M15: 23,587,994 km (0.084 R)
• M16: 28,182,444 km (0.057 R)
• M17: 33,759,901 km (0.114 R)
• M18: 35,369,724 km (0.097 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 238 - 15,546 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit