🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.98

Radius: 1.74

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.84 AU - 0.88 AU

Year: 296 Days

Day: 24.3 Hours

Environment

Temp: 165 °C

Axial Tilt: 37.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 59,713,337 km

• M1: 96,640 km (0.085 R)
• M2: 398,230 km (0.104 R)

Planet 2 - Terrestrial

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.46

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 2.1 AU - 2.66 AU

Year: 1362 Days

Day: 46 Hours

Environment

Temp: -90 °C

Axial Tilt: 36.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 59,713,337 km

• M1: 162,164 km (0.037 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.71

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 2.25 AU - 2.55 AU

Year: 1379 Days

Day: 43 Hours

Environment

Temp: -98 °C

Axial Tilt: 10.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.7 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.68

Radius: 1.85

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 3.24 AU - 4.16 AU

Year: 2639 Days

Day: 18.5 Hours

Environment

Temp: -117 °C

Axial Tilt: 36.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.01 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 6.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 321.3

Radius: 9.7

Gravity: 3.41 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 5.31 AU - 7.31 AU

Year: 5878 Days

Day: 14.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 12.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 59,713,337 km

• M1: 123,867 km (0.076 R)
• M2: 610,210 km (0.097 R)
• M3: 1,492,388 km (0.101 R)
• M4: 1,887,327 km (0.072 R)
• M5: 2,321,460 km (0.053 R)
• M6: 3,551,005 km (0.047 R)
• M7: 3,993,366 km (0.045 R)
• M8: 4,738,064 km (0.113 R)
• M9: 5,711,497 km (0.083 R)
• M10: 6,380,499 km (0.087 R)
• M11: 8,853,352 km (0.041 R)
• M12: 10,033,828 km (0.116 R)
• M13: 10,365,487 km (0.076 R)
• M14: 11,904,251 km (0.12 R)
• M15: 16,322,624 km (0.081 R)
• M16: 19,658,955 km (0.028 R)
• M17: 23,424,483 km (0.032 R)
• M18: 24,754,408 km (0.068 R)
• M19: 25,361,327 km (0.083 R)
• M20: 26,056,060 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 624.3

Radius: 8.3

Gravity: 9.06 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 5.34 AU - 8.64 AU

Year: 6854 Days

Day: 10.3 Hours

Environment

Temp: -161 °C

Axial Tilt: 19.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 59,713,337 km

• M1: 103,821 km (0.071 R)
• M2: 427,401 km (0.055 R)
• M3: 721,810 km (0.117 R)
• M4: 1,386,024 km (0.105 R)
• M5: 2,111,275 km (0.1 R)
• M6: 2,391,472 km (0.117 R)
• M7: 2,810,346 km (0.113 R)
• M8: 4,825,579 km (0.102 R)
• M9: 5,197,479 km (0.099 R)
• M10: 5,619,345 km (0.085 R)
• M11: 7,278,086 km (0.092 R)
• M12: 8,199,459 km (0.101 R)
• M13: 8,982,455 km (0.076 R)
• M14: 11,834,239 km (0.119 R)
• M15: 13,325,580 km (0.12 R)
• M16: 15,853,784 km (0.111 R)
• M17: 18,546,695 km (0.062 R)
• M18: 22,539,163 km (0.104 R)
• M19: 24,819,184 km (0.115 R)
• M20: 25,928,303 km (0.119 R)
• M21: 34,844,186 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 917.6

Radius: 14.3

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 7.99 AU - 12.43 AU

Year: 12099 Days

Day: 14.3 Hours

Environment

Temp: -176 °C

Axial Tilt: 46.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 59,713,337 km

• M1: 181,163 km (0.077 R)
• M2: 1,394,851 km (0.1 R)
• M3: 1,875,060 km (0.096 R)
• M4: 2,426,627 km (0.085 R)
• M5: 3,383,006 km (0.055 R)
• M6: 4,802,241 km (0.116 R)
• M7: 11,490,463 km (0.055 R)
• M8: 12,651,492 km (0.111 R)
• M9: 16,681,060 km (0.094 R)
• M10: 23,352,377 km (0.101 R)
• M11: 30,689,554 km (0.09 R)
• M12: 35,631,819 km (0.031 R)
• M13: 36,268,657 km (0.118 R)
• M14: 36,783,723 km (0.073 R)
• M15: 37,960,160 km (0.075 R)
• M16: 38,491,083 km (0.103 R)
• M17: 41,360,071 km (0.114 R)
• M18: 47,674,149 km (0.03 R)
• M19: 48,447,719 km (0.074 R)
• M20: 55,109,911 km (0.088 R)
• M21: 58,218,555 km (0.053 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 896.8

Radius: 10.4

Gravity: 8.29 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 9.38 AU - 11.1 AU

Year: 12152 Days

Day: 6.9 Hours

Environment

Temp: -174 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 59,713,337 km

• M1: 149,747 km (0.046 R)
• M2: 1,225,655 km (0.059 R)
• M3: 1,690,306 km (0.117 R)
• M4: 2,533,739 km (0.1 R)
• M5: 2,955,904 km (0.088 R)
• M6: 4,326,670 km (0.035 R)
• M7: 6,926,980 km (0.117 R)
• M8: 8,033,256 km (0.111 R)
• M9: 10,315,521 km (0.074 R)
• M10: 11,222,084 km (0.08 R)
• M11: 12,119,372 km (0.12 R)
• M12: 13,720,369 km (0.111 R)
• M13: 15,385,692 km (0.098 R)
• M14: 19,449,070 km (0.116 R)
• M15: 20,830,606 km (0.107 R)
• M16: 31,560,663 km (0.106 R)
• M17: 35,067,985 km (0.114 R)
• M18: 39,230,396 km (0.083 R)
• M19: 43,421,380 km (0.114 R)
• M20: 50,253,366 km (0.077 R)
• M21: 52,189,312 km (0.071 R)
• M22: 58,823,977 km (0.062 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: 221 - 10,358 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit