🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 212.6

Radius: 13.9

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.5 AU - 0.54 AU

Year: 250 Days

Day: 5.9 Hours

Environment

Temp: -146 °C

Axial Tilt: 49.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 29,887,398 km

• M1: 172,935 km (0.089 R)
• M2: 685,906 km (0.051 R)
• M3: 1,197,681 km (0.079 R)
• M4: 1,839,605 km (0.046 R)
• M5: 2,279,572 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 948.8

Radius: 14

Gravity: 4.84 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 0.58 AU - 0.78 AU

Year: 374 Days

Day: 11.6 Hours

Environment

Temp: -160 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 29,887,398 km

• M1: 174,132 km (0.089 R)
• M2: 678,426 km (0.061 R)
• M3: 1,556,566 km (0.117 R)
• M4: 2,054,876 km (0.104 R)
• M5: 2,515,189 km (0.096 R)
• M6: 3,514,952 km (0.095 R)
• M7: 3,954,470 km (0.104 R)
• M8: 4,617,787 km (0.092 R)
• M9: 5,370,564 km (0.114 R)
• M10: 5,905,526 km (0.109 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 421.1

Radius: 13.8

Gravity: 2.21 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.6 AU - 0.96 AU

Year: 459 Days

Day: 8.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 29,887,398 km

• M1: 171,589 km (0.064 R)
• M2: 770,130 km (0.037 R)
• M3: 1,263,803 km (0.091 R)
• M4: 1,935,796 km (0.113 R)
• M5: 2,819,022 km (0.116 R)
• M6: 3,700,154 km (0.109 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 171.7

Radius: 8.9

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.68 AU - 1.04 AU

Year: 532 Days

Day: 7.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 29,887,398 km

• M1: 111,002 km (0.038 R)
• M2: 408,253 km (0.053 R)
• M3: 699,520 km (0.06 R)
• M4: 992,133 km (0.045 R)
• M5: 1,563,298 km (0.102 R)
• M6: 2,063,703 km (0.113 R)
• M7: 2,356,166 km (0.069 R)
• M8: 2,694,706 km (0.104 R)
• M9: 2,996,595 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 605.9

Radius: 8.5

Gravity: 8.39 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.9 AU - 1.3 AU

Year: 769 Days

Day: 14.7 Hours

Environment

Temp: -170 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 29,887,398 km

• M1: 105,766 km (0.092 R)
• M2: 425,905 km (0.112 R)
• M3: 732,132 km (0.08 R)
• M4: 1,139,038 km (0.11 R)
• M5: 1,414,149 km (0.091 R)
• M6: 2,073,576 km (0.075 R)
• M7: 2,436,052 km (0.11 R)
• M8: 2,770,104 km (0.09 R)
• M9: 3,121,958 km (0.082 R)
• M10: 3,558,485 km (0.102 R)
• M11: 3,842,571 km (0.116 R)
• M12: 4,653,092 km (0.1 R)
• M13: 6,909,178 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 664.5

Radius: 10.7

Gravity: 5.8 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.48 AU - 2.1 AU

Year: 1597 Days

Day: 6 Hours

Environment

Temp: -205 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 29,887,398 km

• M1: 132,993 km (0.078 R)
• M2: 510,278 km (0.06 R)
• M3: 880,234 km (0.11 R)
• M4: 1,287,589 km (0.12 R)
• M5: 1,821,204 km (0.089 R)
• M6: 2,287,351 km (0.083 R)
• M7: 2,818,274 km (0.032 R)
• M8: 3,166,239 km (0.058 R)
• M9: 3,810,856 km (0.104 R)
• M10: 5,404,971 km (0.109 R)
• M11: 5,830,427 km (0.113 R)
• M12: 6,522,916 km (0.089 R)
• M13: 7,216,152 km (0.112 R)
• M14: 8,158,170 km (0.074 R)
• M15: 9,984,611 km (0.12 R)
• M16: 10,940,691 km (0.055 R)
• M17: 11,623,455 km (0.098 R)
• M18: 12,798,098 km (0.105 R)
• M19: 13,843,039 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 456.8

Radius: 9.5

Gravity: 5.06 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 3.69 AU - 4.99 AU

Year: 6029 Days

Day: 12 Hours

Environment

Temp: -216 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 29,887,398 km

• M1: 119,678 km (0.119 R)
• M2: 509,381 km (0.1 R)
• M3: 1,004,998 km (0.093 R)
• M4: 1,518,718 km (0.025 R)
• M5: 1,856,958 km (0.073 R)
• M6: 4,043,930 km (0.065 R)
• M7: 4,600,434 km (0.1 R)
• M8: 4,990,435 km (0.094 R)
• M9: 5,487,399 km (0.12 R)
• M10: 5,956,538 km (0.082 R)
• M11: 9,602,987 km (0.097 R)
• M12: 12,279,442 km (0.1 R)
• M13: 13,393,497 km (0.086 R)
• M14: 15,705,532 km (0.1 R)
• M15: 16,056,190 km (0.078 R)
• M16: 18,079,501 km (0.051 R)
• M17: 18,987,111 km (0.071 R)
• M18: 22,110,565 km (0.063 R)
• M19: 24,295,741 km (0.03 R)
• M20: 27,287,699 km (0.103 R)
• M21: 29,266,579 km (0.064 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: 470 - 20,192 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit