🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.91

Radius: 0.96

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.54 AU - 0.58 AU

Year: 148 Days

Day: 24.9 Hours

Environment

Temp: 264 °C

Axial Tilt: 22.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 33,034,991 km

• M1: 41,139 km (0.111 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.17

Radius: 0.49

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.46 AU - 0.68 AU

Year: 152 Days

Day: 20 Hours

Environment

Temp: 217 °C

Axial Tilt: 4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.78 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.24

Radius: 1.09

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 0.77 AU - 0.79 AU

Year: 243 Days

Day: 23.5 Hours

Environment

Temp: 191 °C

Axial Tilt: 0 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.12

Radius: 1.35

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 0.82 AU - 0.98 AU

Year: 301 Days

Day: 20.2 Hours

Environment

Temp: 185 °C

Axial Tilt: 13.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 5 - Gas Giant

Semi-Major Axis: 5.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 773.1

Radius: 14.1

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 5.41 AU - 5.43 AU

Year: 4456 Days

Day: 8.8 Hours

Environment

Temp: -134 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 33,034,991 km

• M1: 178,171 km (0.12 R)
• M2: 817,403 km (0.117 R)
• M3: 1,548,039 km (0.1 R)
• M4: 2,083,450 km (0.041 R)
• M5: 3,141,555 km (0.051 R)
• M6: 3,642,708 km (0.117 R)
• M7: 4,532,367 km (0.107 R)
• M8: 5,016,017 km (0.114 R)
• M9: 6,488,508 km (0.106 R)
• M10: 7,514,899 km (0.106 R)
• M11: 10,058,362 km (0.095 R)
• M12: 12,432,181 km (0.101 R)
• M13: 14,551,086 km (0.118 R)
• M14: 19,962,489 km (0.116 R)
• M15: 22,125,675 km (0.082 R)
• M16: 24,829,058 km (0.095 R)
• M17: 25,697,174 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 576

Radius: 12.6

Gravity: 3.63 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 5.29 AU - 6.09 AU

Year: 4793 Days

Day: 13.2 Hours

Environment

Temp: -140 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 33,034,991 km

• M1: 156,629 km (0.091 R)
• M2: 556,953 km (0.106 R)
• M3: 961,615 km (0.114 R)
• M4: 1,378,844 km (0.087 R)
• M5: 2,097,512 km (0.04 R)
• M6: 2,962,636 km (0.058 R)
• M7: 3,538,887 km (0.103 R)
• M8: 3,985,886 km (0.117 R)
• M9: 5,125,672 km (0.054 R)
• M10: 5,814,869 km (0.051 R)
• M11: 7,863,163 km (0.086 R)
• M12: 8,554,605 km (0.103 R)
• M13: 9,485,403 km (0.104 R)
• M14: 12,490,824 km (0.113 R)
• M15: 13,483,705 km (0.087 R)
• M16: 14,689,913 km (0.106 R)
• M17: 17,195,677 km (0.077 R)
• M18: 20,577,486 km (0.05 R)
• M19: 20,986,337 km (0.045 R)
• M20: 22,460,176 km (0.108 R)
• M21: 23,259,327 km (0.111 R)
• M22: 24,002,081 km (0.043 R)
• M23: 26,727,006 km (0.116 R)
• M24: 27,624,444 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 580.2

Radius: 14.8

Gravity: 2.65 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 5.83 AU - 8.61 AU

Year: 6850 Days

Day: 13.7 Hours

Environment

Temp: -155 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 33,034,991 km

• M1: 184,155 km (0.044 R)
• M2: 1,047,933 km (0.111 R)
• M3: 1,525,898 km (0.09 R)
• M4: 2,169,169 km (0.09 R)
• M5: 2,726,122 km (0.109 R)
• M6: 3,574,342 km (0.107 R)
• M7: 4,208,487 km (0.027 R)
• M8: 5,056,857 km (0.095 R)
• M9: 7,568,904 km (0.11 R)
• M10: 8,743,248 km (0.101 R)
• M11: 10,634,165 km (0.043 R)
• M12: 17,932,746 km (0.112 R)
• M13: 18,472,644 km (0.1 R)
• M14: 20,085,459 km (0.095 R)
• M15: 24,238,595 km (0.071 R)
• M16: 27,572,683 km (0.108 R)
• M17: 28,932,827 km (0.081 R)
• M18: 29,489,181 km (0.092 R)
• M19: 31,104,539 km (0.108 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237.1

Radius: 11.8

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 7.97 AU - 10.27 AU

Year: 9725 Days

Day: 6.5 Hours

Environment

Temp: -173 °C

Axial Tilt: 6.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 33,034,991 km

• M1: 147,204 km (0.101 R)
• M2: 579,093 km (0.107 R)
• M3: 1,155,195 km (0.062 R)
• M4: 3,410,981 km (0.117 R)
• M5: 3,922,007 km (0.12 R)
• M6: 4,691,539 km (0.079 R)
• M7: 5,154,694 km (0.038 R)
• M8: 5,922,430 km (0.114 R)
• M9: 6,399,049 km (0.079 R)
• M10: 6,935,656 km (0.079 R)
• M11: 8,214,718 km (0.106 R)
• M12: 12,371,146 km (0.109 R)
• M13: 14,527,000 km (0.058 R)
• M14: 17,885,173 km (0.072 R)
• M15: 20,344,263 km (0.075 R)
• M16: 22,028,586 km (0.093 R)
• M17: 26,260,709 km (0.111 R)
• M18: 27,725,572 km (0.118 R)
• M19: 29,062,678 km (0.086 R)
• M20: 33,034,950 km (0.074 R)

Kuiper Belt

Range: 31.1 - 47.1 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 227 - 18,441 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit