🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.45

Radius: 1.82

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.53 AU - 0.75 AU

Year: 331 Days

Day: 28.5 Hours

Environment

Temp: -124 °C

Axial Tilt: 3.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 44,699,426 km

• M1: 173,982 km (0.084 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 238.4

Radius: 10.3

Gravity: 2.25 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.6 AU - 0.78 AU

Year: 370 Days

Day: 13.1 Hours

Environment

Temp: -133 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 44,699,426 km

• M1: 129,402 km (0.115 R)
• M2: 508,334 km (0.07 R)
• M3: 1,102,985 km (0.111 R)
• M4: 1,523,355 km (0.069 R)
• M5: 1,917,845 km (0.077 R)
• M6: 2,550,644 km (0.093 R)
• M7: 2,953,212 km (0.088 R)
• M8: 3,479,796 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 952.3

Radius: 11.9

Gravity: 6.72 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.65 AU - 0.75 AU

Year: 378 Days

Day: 8.7 Hours

Environment

Temp: -142 °C

Axial Tilt: 36.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 44,699,426 km

• M1: 148,102 km (0.089 R)
• M2: 524,191 km (0.091 R)
• M3: 965,056 km (0.071 R)
• M4: 1,488,948 km (0.108 R)
• M5: 2,096,165 km (0.052 R)
• M6: 2,698,297 km (0.045 R)
• M7: 3,707,783 km (0.069 R)
• M8: 4,195,472 km (0.105 R)
• M9: 4,666,406 km (0.091 R)
• M10: 5,268,538 km (0.085 R)
• M11: 5,749,345 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 277.4

Radius: 13.6

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 0.84 AU - 0.96 AU

Year: 551 Days

Day: 9.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 44,699,426 km

• M1: 169,195 km (0.059 R)
• M2: 592,258 km (0.081 R)
• M3: 1,143,377 km (0.096 R)
• M4: 2,508,457 km (0.106 R)
• M5: 2,958,597 km (0.069 R)
• M6: 3,924,999 km (0.069 R)
• M7: 4,916,534 km (0.045 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 603.5

Radius: 14.9

Gravity: 2.72 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.7 AU - 1.12 AU

Year: 561 Days

Day: 7.5 Hours

Environment

Temp: -155 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 44,699,426 km

• M1: 185,352 km (0.076 R)
• M2: 694,882 km (0.045 R)
• M3: 1,176,288 km (0.108 R)
• M4: 1,656,198 km (0.09 R)
• M5: 2,307,398 km (0.094 R)
• M6: 3,069,599 km (0.097 R)
• M7: 3,663,353 km (0.071 R)
• M8: 4,204,598 km (0.076 R)
• M9: 4,799,100 km (0.069 R)
• M10: 5,552,175 km (0.115 R)
• M11: 6,574,228 km (0.087 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 209

Radius: 8

Gravity: 3.27 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.87 AU - 1.37 AU

Year: 765 Days

Day: 9.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 44,699,426 km

• M1: 99,483 km (0.115 R)
• M2: 363,972 km (0.077 R)
• M3: 735,722 km (0.045 R)
• M4: 994,826 km (0.061 R)
• M5: 1,255,874 km (0.115 R)
• M6: 1,961,378 km (0.115 R)
• M7: 2,388,180 km (0.113 R)
• M8: 3,451,971 km (0.053 R)
• M9: 3,995,610 km (0.058 R)
• M10: 4,802,840 km (0.097 R)
• M11: 5,094,855 km (0.118 R)
• M12: 5,349,769 km (0.076 R)
• M13: 5,630,116 km (0.052 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 329.4

Radius: 8.8

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.87 AU - 2.03 AU

Year: 1758 Days

Day: 5.9 Hours

Environment

Temp: -193 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 44,699,426 km

• M1: 109,506 km (0.081 R)
• M2: 528,978 km (0.096 R)
• M3: 931,995 km (0.12 R)
• M4: 1,586,485 km (0.106 R)
• M5: 2,030,941 km (0.089 R)
• M6: 2,720,886 km (0.108 R)
• M7: 3,127,493 km (0.114 R)
• M8: 4,879,434 km (0.093 R)
• M9: 5,398,688 km (0.115 R)
• M10: 6,200,533 km (0.109 R)
• M11: 7,005,369 km (0.066 R)
• M12: 8,966,448 km (0.113 R)
• M13: 9,807,636 km (0.086 R)

Asteroid Belt

Center: 3.96 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 8 - Gas Giant

Semi-Major Axis: 5.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 629.4

Radius: 12.2

Gravity: 4.23 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 4.7 AU - 7.22 AU

Year: 9395 Days

Day: 11.6 Hours

Environment

Temp: -229 °C

Axial Tilt: 19.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 44,699,426 km

• M1: 151,692 km (0.119 R)
• M2: 546,780 km (0.087 R)
• M3: 1,129,614 km (0.084 R)
• M4: 1,584,241 km (0.059 R)
• M5: 2,195,648 km (0.053 R)
• M6: 2,713,705 km (0.102 R)
• M7: 4,487,787 km (0.079 R)
• M8: 5,109,216 km (0.113 R)
• M9: 5,720,174 km (0.106 R)
• M10: 6,634,815 km (0.107 R)
• M11: 7,563,369 km (0.056 R)
• M12: 7,975,062 km (0.083 R)
• M13: 8,979,014 km (0.056 R)
• M14: 11,027,607 km (0.107 R)
• M15: 13,252,277 km (0.109 R)
• M16: 17,339,440 km (0.064 R)
• M17: 18,720,678 km (0.069 R)
• M18: 21,618,837 km (0.12 R)
• M19: 23,390,525 km (0.111 R)
• M20: 24,624,109 km (0.079 R)
• M21: 25,623,572 km (0.098 R)
• M22: 26,367,223 km (0.073 R)
• M23: 27,995,147 km (0.117 R)
• M24: 39,074,066 km (0.067 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 209 - 10,621 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit