🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.63

Radius: 1.47

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 0.59 AU - 0.71 AU

Year: 333 Days

Day: 35.4 Hours

Environment

Temp: -133 °C

Axial Tilt: 20.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 20,352,521 km

• M1: 83,625 km (0.093 R)
• M2: 255,663 km (0.094 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 964.8

Radius: 14.5

Gravity: 4.59 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 0.66 AU - 0.94 AU

Year: 455 Days

Day: 14.1 Hours

Environment

Temp: -137 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 20,352,521 km

• M1: 180,415 km (0.108 R)
• M2: 636,539 km (0.091 R)
• M3: 1,150,557 km (0.098 R)
• M4: 1,634,806 km (0.05 R)
• M5: 2,295,280 km (0.113 R)
• M6: 2,816,778 km (0.093 R)
• M7: 3,331,993 km (0.067 R)
• M8: 3,842,870 km (0.099 R)
• M9: 4,555,554 km (0.054 R)
• M10: 5,204,510 km (0.082 R)
• M11: 5,735,582 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 625.9

Radius: 9.3

Gravity: 7.24 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.81 AU - 0.87 AU

Year: 489 Days

Day: 14 Hours

Environment

Temp: -139 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 20,352,521 km

• M1: 115,639 km (0.111 R)
• M2: 422,614 km (0.113 R)
• M3: 770,279 km (0.056 R)
• M4: 1,061,546 km (0.03 R)
• M5: 1,461,571 km (0.102 R)
• M6: 1,770,042 km (0.109 R)
• M7: 2,166,327 km (0.099 R)
• M8: 2,786,560 km (0.091 R)
• M9: 3,138,713 km (0.06 R)
• M10: 3,801,132 km (0.052 R)
• M11: 4,138,027 km (0.052 R)
• M12: 4,524,288 km (0.114 R)
• M13: 4,872,253 km (0.078 R)
• M14: 5,336,306 km (0.096 R)
• M15: 5,971,049 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 907.5

Radius: 12.5

Gravity: 5.81 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.92 AU - 1.16 AU

Year: 674 Days

Day: 6 Hours

Environment

Temp: -159 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 20,352,521 km

• M1: 155,432 km (0.088 R)
• M2: 1,011,282 km (0.111 R)
• M3: 1,565,243 km (0.108 R)
• M4: 2,390,574 km (0.119 R)
• M5: 4,096,887 km (0.072 R)
• M6: 5,453,441 km (0.108 R)
• M7: 6,317,518 km (0.1 R)
• M8: 7,225,278 km (0.097 R)
• M9: 7,710,723 km (0.107 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 922.2

Radius: 13.4

Gravity: 5.14 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.14 AU - 1.38 AU

Year: 899 Days

Day: 13.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 20,352,521 km

• M1: 166,652 km (0.089 R)
• M2: 704,905 km (0.09 R)
• M3: 1,191,098 km (0.038 R)
• M4: 1,697,188 km (0.092 R)
• M5: 2,336,120 km (0.099 R)
• M6: 3,172,971 km (0.113 R)
• M7: 4,613,598 km (0.119 R)
• M8: 5,283,198 km (0.083 R)
• M9: 5,723,914 km (0.115 R)
• M10: 6,386,632 km (0.114 R)
• M11: 6,911,122 km (0.092 R)
• M12: 7,588,202 km (0.117 R)
• M13: 8,714,076 km (0.049 R)
• M14: 9,622,135 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 134.5

Radius: 8.1

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 1.38 AU - 1.64 AU

Year: 1180 Days

Day: 13.9 Hours

Environment

Temp: -183 °C

Axial Tilt: 11.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 20,352,521 km

• M1: 100,979 km (0.094 R)
• M2: 357,838 km (0.064 R)
• M3: 625,618 km (0.073 R)
• M4: 2,015,682 km (0.083 R)
• M5: 2,658,055 km (0.09 R)
• M6: 3,417,414 km (0.112 R)
• M7: 3,807,266 km (0.119 R)
• M8: 4,629,755 km (0.113 R)
• M9: 5,341,990 km (0.055 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 619.2

Radius: 10.6

Gravity: 5.51 G

Time & Orbit

Eccentricity (e): 0.052

Orbit Range: 2.74 AU - 3.04 AU

Year: 3124 Days

Day: 9.4 Hours

Environment

Temp: -197 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 20,352,521 km

• M1: 144,362 km (0.079 R)
• M2: 475,272 km (0.107 R)
• M3: 1,056,610 km (0.104 R)
• M4: 1,488,948 km (0.026 R)
• M5: 1,841,400 km (0.087 R)
• M6: 2,305,453 km (0.116 R)
• M7: 2,879,011 km (0.06 R)
• M8: 3,360,866 km (0.037 R)
• M9: 4,758,110 km (0.112 R)
• M10: 5,434,143 km (0.077 R)
• M11: 6,367,783 km (0.105 R)
• M12: 6,770,052 km (0.108 R)
• M13: 8,112,693 km (0.114 R)
• M14: 8,620,577 km (0.068 R)
• M15: 9,625,277 km (0.025 R)
• M16: 10,948,171 km (0.117 R)
• M17: 11,866,552 km (0.097 R)
• M18: 13,339,193 km (0.112 R)
• M19: 15,641,953 km (0.086 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 106.3

Radius: 11.4

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 4.06 AU - 5.86 AU

Year: 7024 Days

Day: 11.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 20,352,521 km

• M1: 144,811 km (0.12 R)
• M2: 1,038,359 km (0.108 R)
• M3: 2,349,135 km (0.07 R)
• M4: 4,661,918 km (0.085 R)
• M5: 5,952,350 km (0.114 R)
• M6: 7,780,136 km (0.083 R)
• M7: 11,408,034 km (0.102 R)
• M8: 13,404,717 km (0.03 R)
• M9: 14,582,651 km (0.114 R)
• M10: 18,587,535 km (0.095 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: 171 - 16,166 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit