🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.88

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.63 AU - 0.71 AU

Year: 230 Days

Day: 24.6 Hours

Environment

Temp: 9 °C

Axial Tilt: 43.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.66

Radius: 1.22

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 0.55 AU - 0.85 AU

Year: 245 Days

Day: 37.6 Hours

Environment

Temp: 27 °C

Axial Tilt: 8.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 2.24 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.4

Radius: 0.69

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 2 AU - 2.48 AU

Year: 1405 Days

Day: 43.2 Hours

Environment

Temp: -120 °C

Axial Tilt: 12.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 687

Radius: 11.2

Gravity: 5.48 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 4.12 AU - 5.38 AU

Year: 4337 Days

Day: 8.8 Hours

Environment

Temp: -173 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 31,645,293 km

• M1: 139,276 km (0.099 R)
• M2: 498,759 km (0.061 R)
• M3: 885,171 km (0.104 R)
• M4: 1,243,009 km (0.056 R)
• M5: 2,253,842 km (0.066 R)
• M6: 3,963,147 km (0.033 R)
• M7: 5,699,978 km (0.101 R)
• M8: 8,110,748 km (0.027 R)
• M9: 9,440,972 km (0.108 R)
• M10: 11,632,581 km (0.06 R)
• M11: 15,442,390 km (0.12 R)
• M12: 21,299,894 km (0.026 R)
• M13: 23,222,377 km (0.071 R)
• M14: 24,872,441 km (0.078 R)
• M15: 25,413,387 km (0.102 R)
• M16: 25,962,262 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 195.8

Radius: 15

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 5.09 AU - 5.47 AU

Year: 5083 Days

Day: 7.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 31,645,293 km

• M1: 187,745 km (0.114 R)
• M2: 1,673,252 km (0.092 R)
• M3: 2,151,367 km (0.094 R)
• M4: 3,136,020 km (0.105 R)
• M5: 3,648,243 km (0.061 R)
• M6: 4,195,921 km (0.091 R)
• M7: 5,004,348 km (0.1 R)
• M8: 7,561,424 km (0.045 R)
• M9: 9,282,697 km (0.099 R)
• M10: 11,455,906 km (0.088 R)
• M11: 13,037,155 km (0.108 R)
• M12: 13,950,450 km (0.047 R)
• M13: 15,955,660 km (0.088 R)
• M14: 18,540,113 km (0.068 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 560.5

Radius: 12.5

Gravity: 3.59 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 4.65 AU - 5.99 AU

Year: 5141 Days

Day: 13.5 Hours

Environment

Temp: -165 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 31,645,293 km

• M1: 155,582 km (0.116 R)
• M2: 591,959 km (0.106 R)
• M3: 1,007,990 km (0.093 R)
• M4: 1,788,443 km (0.078 R)
• M5: 2,230,504 km (0.087 R)
• M6: 3,088,747 km (0.086 R)
• M7: 3,501,488 km (0.079 R)
• M8: 4,249,178 km (0.1 R)
• M9: 4,813,311 km (0.091 R)
• M10: 5,234,878 km (0.091 R)
• M11: 5,681,278 km (0.092 R)
• M12: 6,460,982 km (0.032 R)
• M13: 8,647,056 km (0.106 R)
• M14: 9,192,939 km (0.076 R)
• M15: 10,097,557 km (0.066 R)
• M16: 10,970,461 km (0.095 R)
• M17: 13,118,088 km (0.078 R)
• M18: 15,027,705 km (0.114 R)
• M19: 15,875,775 km (0.053 R)
• M20: 16,995,365 km (0.108 R)
• M21: 17,853,608 km (0.097 R)
• M22: 19,523,869 km (0.115 R)
• M23: 20,193,169 km (0.042 R)
• M24: 20,739,650 km (0.117 R)
• M25: 22,293,374 km (0.099 R)
• M26: 22,877,254 km (0.067 R)
• M27: 24,845,364 km (0.081 R)
• M28: 26,191,894 km (0.084 R)
• M29: 26,597,005 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 615.2

Radius: 11.5

Gravity: 4.65 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 4.34 AU - 7 AU

Year: 5657 Days

Day: 8.1 Hours

Environment

Temp: -167 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 31,645,293 km

• M1: 143,016 km (0.045 R)
• M2: 551,717 km (0.1 R)
• M3: 1,305,690 km (0.062 R)
• M4: 1,830,180 km (0.115 R)
• M5: 2,492,600 km (0.093 R)
• M6: 2,862,106 km (0.032 R)
• M7: 3,308,955 km (0.047 R)
• M8: 6,910,524 km (0.11 R)
• M9: 7,647,443 km (0.093 R)
• M10: 8,951,039 km (0.087 R)
• M11: 9,444,862 km (0.094 R)
• M12: 9,870,168 km (0.087 R)
• M13: 10,532,139 km (0.094 R)
• M14: 11,604,456 km (0.104 R)
• M15: 12,442,803 km (0.112 R)
• M16: 15,904,946 km (0.113 R)
• M17: 16,264,879 km (0.114 R)
• M18: 17,126,263 km (0.082 R)
• M19: 17,568,176 km (0.115 R)
• M20: 19,208,965 km (0.067 R)
• M21: 20,451,974 km (0.079 R)
• M22: 24,185,787 km (0.105 R)
• M23: 25,552,513 km (0.11 R)
• M24: 29,870,207 km (0.095 R)
• M25: 31,067,738 km (0.065 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.26 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 31.6

Radius: 3.1

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 13.8 AU - 16.72 AU

Year: 24976 Days

Day: 23.4 Hours

Environment

Temp: -213 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 31,645,293 km

• M1: 38,746 km (0.11 R)
• M2: 163,211 km (0.099 R)
• M3: 944,112 km (0.107 R)
• M4: 1,440,627 km (0.056 R)
• M5: 2,001,320 km (0.063 R)
• M6: 6,015,929 km (0.073 R)
• M7: 10,197,638 km (0.086 R)
• M8: 12,537,349 km (0.099 R)
• M9: 17,401,823 km (0.064 R)
• M10: 19,655,365 km (0.057 R)
• M11: 25,461,707 km (0.052 R)
• M12: 28,002,178 km (0.099 R)
• M13: 30,428,656 km (0.116 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 279 - 10,576 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit