🌌 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 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 667

Radius: 12.3

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.59 AU - 0.67 AU

Year: 345 Days

Day: 13.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 80,794,857 km

• M1: 153,039 km (0.034 R)
• M2: 560,543 km (0.101 R)
• M3: 1,001,408 km (0.105 R)
• M4: 1,391,559 km (0.085 R)
• M5: 1,864,139 km (0.096 R)
• M6: 2,322,208 km (0.066 R)
• M7: 2,915,064 km (0.037 R)
• M8: 3,368,794 km (0.043 R)
• M9: 4,119,177 km (0.038 R)
• M10: 4,862,828 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 453.6

Radius: 8.2

Gravity: 6.75 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 0.71 AU - 1.17 AU

Year: 629 Days

Day: 12.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 80,794,857 km

• M1: 102,026 km (0.03 R)
• M2: 428,897 km (0.067 R)
• M3: 1,081,593 km (0.108 R)
• M4: 1,989,652 km (0.113 R)
• M5: 2,770,702 km (0.032 R)
• M6: 4,197,267 km (0.09 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 59.9

Radius: 9.1

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 1.08 AU - 1.22 AU

Year: 851 Days

Day: 13.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 80,794,857 km

• M1: 121,773 km (0.104 R)
• M2: 422,764 km (0.083 R)
• M3: 743,651 km (0.055 R)
• M4: 1,040,004 km (0.104 R)
• M5: 1,349,971 km (0.077 R)
• M6: 1,984,117 km (0.059 R)
• M7: 2,386,086 km (0.1 R)
• M8: 3,071,095 km (0.063 R)
• M9: 3,611,442 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 165.8

Radius: 11.5

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 1.62 AU - 2.4 AU

Year: 1967 Days

Day: 9.7 Hours

Environment

Temp: -208 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 80,794,857 km

• M1: 143,165 km (0.097 R)
• M2: 559,197 km (0.093 R)
• M3: 1,380,639 km (0.08 R)
• M4: 2,448,618 km (0.049 R)
• M5: 2,980,588 km (0.086 R)
• M6: 4,463,851 km (0.049 R)
• M7: 6,884,644 km (0.098 R)
• M8: 8,232,520 km (0.034 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.2

Radius: 8.4

Gravity: 10.59 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 2.1 AU - 2.94 AU

Year: 2761 Days

Day: 14.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 80,794,857 km

• M1: 105,018 km (0.081 R)
• M2: 441,613 km (0.097 R)
• M3: 852,558 km (0.11 R)
• M4: 2,052,632 km (0.115 R)
• M5: 2,738,090 km (0.102 R)
• M6: 3,879,372 km (0.094 R)
• M7: 4,691,838 km (0.103 R)
• M8: 6,507,208 km (0.118 R)
• M9: 7,650,435 km (0.078 R)
• M10: 8,269,920 km (0.085 R)
• M11: 10,564,901 km (0.117 R)
• M12: 11,209,368 km (0.104 R)
• M13: 12,443,700 km (0.111 R)
• M14: 13,531,875 km (0.081 R)
• M15: 14,003,408 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 335.8

Radius: 14.7

Gravity: 1.55 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 2.39 AU - 3.13 AU

Year: 3165 Days

Day: 14.1 Hours

Environment

Temp: -215 °C

Axial Tilt: 23.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 80,794,857 km

• M1: 182,958 km (0.115 R)
• M2: 773,571 km (0.071 R)
• M3: 1,336,657 km (0.112 R)
• M4: 1,951,953 km (0.087 R)
• M5: 4,302,584 km (0.114 R)
• M6: 5,501,162 km (0.076 R)
• M7: 6,321,258 km (0.119 R)
• M8: 8,051,208 km (0.119 R)
• M9: 8,877,586 km (0.1 R)
• M10: 11,424,939 km (0.102 R)
• M11: 16,833,500 km (0.099 R)
• M12: 17,500,707 km (0.092 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 795.5

Radius: 5.4

Gravity: 27.28 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 7.71 AU - 11.35 AU

Year: 20307 Days

Day: 16.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 80,794,857 km

• M1: 68,067 km (0.104 R)
• M2: 603,627 km (0.03 R)
• M3: 1,469,649 km (0.083 R)
• M4: 1,858,305 km (0.096 R)
• M5: 2,472,105 km (0.074 R)
• M6: 2,787,607 km (0.033 R)
• M7: 3,353,386 km (0.105 R)
• M8: 3,588,105 km (0.072 R)
• M9: 4,427,199 km (0.087 R)
• M10: 4,674,036 km (0.109 R)
• M11: 6,712,157 km (0.094 R)
• M12: 12,498,453 km (0.108 R)
• M13: 23,065,748 km (0.117 R)
• M14: 23,276,082 km (0.093 R)
• M15: 26,934,349 km (0.102 R)
• M16: 31,860,307 km (0.066 R)
• M17: 32,121,356 km (0.117 R)
• M18: 38,082,681 km (0.086 R)
• M19: 51,953,695 km (0.12 R)
• M20: 56,213,793 km (0.112 R)
• M21: 67,118,281 km (0.106 R)
• M22: 70,379,665 km (0.096 R)
• M23: 77,687,221 km (0.099 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 213 - 13,602 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit