🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.32

Radius: 0.63

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.48 AU - 0.66 AU

Year: 158 Days

Day: 25.9 Hours

Environment

Temp: 180 °C

Axial Tilt: 31.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.59

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.56 AU - 0.72 AU

Year: 188 Days

Day: 18.6 Hours

Environment

Temp: 218 °C

Axial Tilt: 11.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.89 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.01

Radius: 1.32

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 0.68 AU - 1.1 AU

Year: 308 Days

Day: 42.7 Hours

Environment

Temp: 80 °C

Axial Tilt: 20.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 68,227,642 km

• M1: 281,244 km (0.077 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.02

Radius: 1.56

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 2.95 AU - 3.29 AU

Year: 2023 Days

Day: 25.1 Hours

Environment

Temp: -114 °C

Axial Tilt: 15.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.85 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.32

Radius: 1.12

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 3.32 AU - 4.38 AU

Year: 2773 Days

Day: 17.9 Hours

Environment

Temp: -116 °C

Axial Tilt: 35.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 68,227,642 km

• M1: 684,261 km (0.095 R)
• M2: 2,396,109 km (0.075 R)

Asteroid Belt

Center: 6.21 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 8.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 24

Radius: 10.6

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 6.7 AU - 10.42 AU

Year: 9194 Days

Day: 7.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 68,227,642 km

• M1: 131,945 km (0.119 R)
• M2: 740,659 km (0.1 R)
• M3: 1,687,165 km (0.06 R)
• M4: 2,699,194 km (0.074 R)
• M5: 6,999,984 km (0.111 R)
• M6: 11,428,230 km (0.115 R)
• M7: 12,378,625 km (0.071 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 439.9

Radius: 11.3

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 7.34 AU - 11.44 AU

Year: 10563 Days

Day: 13.3 Hours

Environment

Temp: -177 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 68,227,642 km

• M1: 144,212 km (0.117 R)
• M2: 525,238 km (0.061 R)
• M3: 1,059,003 km (0.109 R)
• M4: 1,414,149 km (0.112 R)
• M5: 2,341,356 km (0.098 R)
• M6: 3,130,335 km (0.09 R)
• M7: 3,611,143 km (0.102 R)
• M8: 4,274,610 km (0.113 R)
• M9: 4,751,228 km (0.103 R)
• M10: 5,613,660 km (0.118 R)
• M11: 6,433,307 km (0.075 R)
• M12: 6,872,227 km (0.081 R)
• M13: 8,016,052 km (0.107 R)
• M14: 8,524,984 km (0.094 R)
• M15: 10,577,766 km (0.085 R)
• M16: 12,655,980 km (0.025 R)
• M17: 15,636,269 km (0.099 R)
• M18: 18,907,076 km (0.078 R)
• M19: 23,368,683 km (0.114 R)
• M20: 24,850,899 km (0.114 R)
• M21: 25,934,287 km (0.113 R)
• M22: 26,580,550 km (0.117 R)
• M23: 28,098,370 km (0.096 R)
• M24: 28,682,101 km (0.114 R)
• M25: 34,085,576 km (0.094 R)
• M26: 37,258,846 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 665.2

Radius: 7.7

Gravity: 11.22 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 17.3 AU - 18.08 AU

Year: 27313 Days

Day: 16 Hours

Environment

Temp: -197 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 68,227,642 km

• M1: 102,175 km (0.114 R)
• M2: 741,407 km (0.1 R)
• M3: 1,095,804 km (0.1 R)
• M4: 2,263,266 km (0.1 R)
• M5: 3,547,863 km (0.077 R)
• M6: 4,205,944 km (0.091 R)
• M7: 4,865,372 km (0.119 R)
• M8: 7,208,074 km (0.096 R)
• M9: 8,594,996 km (0.1 R)
• M10: 13,502,554 km (0.097 R)
• M11: 14,363,041 km (0.084 R)
• M12: 16,279,689 km (0.074 R)
• M13: 18,360,595 km (0.085 R)
• M14: 25,189,289 km (0.079 R)
• M15: 26,370,813 km (0.116 R)
• M16: 28,337,577 km (0.107 R)
• M17: 32,011,252 km (0.097 R)
• M18: 44,402,443 km (0.089 R)
• M19: 45,602,817 km (0.115 R)
• M20: 46,824,882 km (0.077 R)
• M21: 48,248,006 km (0.106 R)
• M22: 61,317,026 km (0.092 R)
• M23: 63,449,992 km (0.06 R)
• M24: 65,191,610 km (0.103 R)
• M25: 73,901,049 km (0.114 R)
• M26: 75,585,671 km (0.104 R)
• M27: 76,559,702 km (0.052 R)
• M28: 79,031,508 km (0.084 R)
• M29: 80,287,083 km (0.088 R)
• M30: 86,764,970 km (0.116 R)

Planet 9 - Ice Giant

Semi-Major Axis: 19.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 188

Radius: 5

Gravity: 7.52 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 18.24 AU - 21.42 AU

Year: 32416 Days

Day: 23.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 93.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 68,227,642 km

• M1: 62,682 km (0.101 R)
• M2: 409,001 km (0.091 R)
• M3: 1,140,085 km (0.101 R)
• M4: 1,464,414 km (0.04 R)
• M5: 2,213,151 km (0.073 R)
• M6: 2,647,882 km (0.085 R)
• M7: 3,891,789 km (0.099 R)
• M8: 7,553,645 km (0.097 R)
• M9: 9,481,812 km (0.055 R)
• M10: 12,226,484 km (0.103 R)
• M11: 13,088,767 km (0.098 R)
• M12: 17,681,272 km (0.099 R)
• M13: 18,015,174 km (0.068 R)
• M14: 19,659,404 km (0.11 R)
• M15: 21,026,280 km (0.097 R)
• M16: 21,401,172 km (0.1 R)
• M17: 22,945,471 km (0.064 R)
• M18: 24,459,401 km (0.11 R)
• M19: 32,910,484 km (0.107 R)
• M20: 33,162,557 km (0.118 R)
• M21: 35,225,362 km (0.112 R)
• M22: 35,621,347 km (0.109 R)
• M23: 35,887,033 km (0.096 R)
• M24: 36,154,065 km (0.086 R)
• M25: 36,692,169 km (0.106 R)
• M26: 39,320,753 km (0.083 R)
• M27: 40,320,067 km (0.104 R)
• M28: 45,259,639 km (0.083 R)
• M29: 47,311,374 km (0.114 R)
• M30: 50,923,265 km (0.034 R)
• M31: 55,780,708 km (0.03 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 305 - 10,771 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit