🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.94

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.44 AU - 0.66 AU

Year: 268 Days

Day: 14.3 Hours

Environment

Temp: -127 °C

Axial Tilt: 19.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.44

Radius: 1.16

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.55 AU - 0.57 AU

Year: 275 Days

Day: 28.8 Hours

Environment

Temp: -132 °C

Axial Tilt: 11 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 50,947,138 km

• M1: 29,620 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 79.2

Radius: 14.5

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.88 AU - 1.1 AU

Year: 646 Days

Day: 7.8 Hours

Environment

Temp: -152 °C

Axial Tilt: 48.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 50,947,138 km

• M1: 180,415 km (0.099 R)
• M2: 655,239 km (0.089 R)
• M3: 1,140,983 km (0.086 R)
• M4: 1,690,606 km (0.103 R)
• M5: 2,402,243 km (0.094 R)
• M6: 3,347,701 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 739.6

Radius: 8.1

Gravity: 11.27 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.02 AU - 1.2 AU

Year: 767 Days

Day: 5.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 50,947,138 km

• M1: 100,829 km (0.083 R)
• M2: 461,210 km (0.113 R)
• M3: 737,218 km (0.098 R)
• M4: 1,683,874 km (0.069 R)
• M5: 2,369,481 km (0.062 R)
• M6: 2,717,146 km (0.081 R)
• M7: 3,818,635 km (0.045 R)
• M8: 4,155,081 km (0.111 R)
• M9: 4,428,396 km (0.101 R)
• M10: 5,192,542 km (0.083 R)
• M11: 5,587,032 km (0.109 R)
• M12: 5,860,945 km (0.058 R)
• M13: 6,846,945 km (0.08 R)
• M14: 7,229,616 km (0.06 R)
• M15: 7,508,168 km (0.088 R)
• M16: 8,013,060 km (0.042 R)
• M17: 8,878,334 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 28.3

Radius: 8.5

Gravity: 0.39 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 1.22 AU - 1.56 AU

Year: 1075 Days

Day: 13.5 Hours

Environment

Temp: -176 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 50,947,138 km

• M1: 105,766 km (0.116 R)
• M2: 379,380 km (0.111 R)
• M3: 724,802 km (0.093 R)
• M4: 1,166,714 km (0.11 R)
• M5: 1,722,919 km (0.109 R)
• M6: 2,294,532 km (0.054 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 969.2

Radius: 14.7

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.59 AU - 1.63 AU

Year: 1340 Days

Day: 9.5 Hours

Environment

Temp: -173 °C

Axial Tilt: 18.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 50,947,138 km

• M1: 183,407 km (0.091 R)
• M2: 837,150 km (0.115 R)
• M3: 1,392,008 km (0.074 R)
• M4: 2,093,772 km (0.054 R)
• M5: 3,546,068 km (0.116 R)
• M6: 4,366,163 km (0.09 R)
• M7: 5,288,285 km (0.102 R)
• M8: 6,074,272 km (0.114 R)
• M9: 9,247,692 km (0.106 R)
• M10: 9,758,867 km (0.118 R)
• M11: 10,943,234 km (0.081 R)
• M12: 13,234,026 km (0.114 R)
• M13: 14,091,970 km (0.081 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 376.2

Radius: 6.2

Gravity: 9.79 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 6.22 AU - 9.28 AU

Year: 14153 Days

Day: 23.4 Hours

Environment

Temp: -220 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 50,947,138 km

• M1: 77,193 km (0.113 R)
• M2: 395,088 km (0.101 R)
• M3: 702,063 km (0.107 R)
• M4: 1,520,662 km (0.099 R)
• M5: 2,620,506 km (0.087 R)
• M6: 3,659,613 km (0.115 R)
• M7: 4,200,110 km (0.113 R)
• M8: 5,044,590 km (0.108 R)
• M9: 6,033,133 km (0.032 R)
• M10: 6,439,889 km (0.079 R)
• M11: 6,864,747 km (0.064 R)
• M12: 7,308,155 km (0.12 R)
• M13: 9,917,441 km (0.085 R)
• M14: 11,181,244 km (0.109 R)
• M15: 20,178,658 km (0.097 R)
• M16: 21,003,391 km (0.078 R)
• M17: 22,896,852 km (0.117 R)
• M18: 23,976,200 km (0.032 R)
• M19: 27,718,241 km (0.101 R)
• M20: 29,255,360 km (0.057 R)
• M21: 31,831,585 km (0.11 R)
• M22: 32,386,742 km (0.093 R)
• M23: 34,206,600 km (0.055 R)
• M24: 38,799,853 km (0.073 R)
• M25: 41,770,717 km (0.114 R)
• M26: 48,015,082 km (0.114 R)
• M27: 48,598,364 km (0.099 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 302.6

Radius: 3.1

Gravity: 31.49 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 8.05 AU - 9.11 AU

Year: 16487 Days

Day: 23.7 Hours

Environment

Temp: -234 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 50,947,138 km

• M1: 38,746 km (0.062 R)
• M2: 142,866 km (0.075 R)
• M3: 537,505 km (0.113 R)
• M4: 787,184 km (0.116 R)
• M5: 1,901,539 km (0.119 R)
• M6: 2,514,142 km (0.059 R)
• M7: 3,598,876 km (0.103 R)
• M8: 3,730,073 km (0.092 R)
• M9: 4,057,992 km (0.11 R)
• M10: 4,316,347 km (0.115 R)
• M11: 6,288,197 km (0.082 R)
• M12: 6,517,381 km (0.102 R)
• M13: 7,073,586 km (0.068 R)
• M14: 8,741,602 km (0.051 R)
• M15: 11,034,788 km (0.102 R)
• M16: 13,446,605 km (0.083 R)
• M17: 21,004,289 km (0.107 R)
• M18: 22,386,274 km (0.049 R)
• M19: 26,893,508 km (0.104 R)
• M20: 27,294,431 km (0.114 R)
• M21: 35,326,041 km (0.098 R)
• M22: 40,987,273 km (0.055 R)
• M23: 47,514,677 km (0.067 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 262 - 10,357 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit