🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.39 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 303.5

Radius: 13.7

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.68 AU - 0.86 AU

Year: 475 Days

Day: 13.8 Hours

Environment

Temp: -173 °C

Axial Tilt: 22.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 50,631,507 km

• M1: 170,392 km (0.108 R)
• M2: 741,257 km (0.089 R)
• M3: 1,298,809 km (0.076 R)
• M4: 1,783,057 km (0.06 R)
• M5: 2,397,755 km (0.075 R)
• M6: 2,978,942 km (0.115 R)
• M7: 3,619,072 km (0.093 R)
• M8: 4,655,187 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 32

Radius: 12.6

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.63 AU - 1.01 AU

Year: 522 Days

Day: 8.8 Hours

Environment

Temp: -175 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 50,631,507 km

• M1: 156,928 km (0.103 R)
• M2: 556,803 km (0.032 R)
• M3: 1,363,585 km (0.098 R)
• M4: 1,940,883 km (0.076 R)
• M5: 2,357,363 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 627.8

Radius: 9.6

Gravity: 6.81 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.79 AU - 0.91 AU

Year: 551 Days

Day: 13.1 Hours

Environment

Temp: -165 °C

Axial Tilt: 149.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 50,631,507 km

• M1: 119,379 km (0.111 R)
• M2: 543,190 km (0.056 R)
• M3: 942,018 km (0.073 R)
• M4: 1,549,535 km (0.105 R)
• M5: 1,896,153 km (0.11 R)
• M6: 2,342,104 km (0.066 R)
• M7: 2,674,062 km (0.094 R)
• M8: 3,371,487 km (0.079 R)
• M9: 4,616,291 km (0.111 R)
• M10: 5,043,543 km (0.09 R)
• M11: 5,636,399 km (0.027 R)
• M12: 5,995,733 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 621.8

Radius: 11.9

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1.54 AU - 1.7 AU

Year: 1449 Days

Day: 6.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 50,631,507 km

• M1: 148,401 km (0.034 R)
• M2: 632,500 km (0.043 R)
• M3: 1,079,049 km (0.068 R)
• M4: 2,043,208 km (0.11 R)
• M5: 2,592,232 km (0.098 R)
• M6: 3,092,338 km (0.111 R)
• M7: 4,110,501 km (0.078 R)
• M8: 4,659,226 km (0.071 R)
• M9: 5,112,657 km (0.077 R)
• M10: 7,025,415 km (0.057 R)
• M11: 9,437,232 km (0.108 R)
• M12: 10,101,297 km (0.114 R)
• M13: 11,522,776 km (0.082 R)
• M14: 12,207,934 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 162

Radius: 14.8

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.29 AU - 1.95 AU

Year: 1449 Days

Day: 14.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 50,631,507 km

• M1: 184,005 km (0.095 R)
• M2: 772,224 km (0.113 R)
• M3: 1,711,848 km (0.069 R)
• M4: 2,902,797 km (0.085 R)
• M5: 4,036,749 km (0.098 R)
• M6: 5,111,310 km (0.105 R)
• M7: 5,576,859 km (0.099 R)
• M8: 6,888,234 km (0.118 R)
• M9: 7,685,740 km (0.051 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 138

Radius: 5

Gravity: 5.52 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 7.96 AU - 9.8 AU

Year: 18601 Days

Day: 17 Hours

Environment

Temp: -231 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 50,631,507 km

• M1: 62,233 km (0.102 R)
• M2: 223,350 km (0.111 R)
• M3: 489,783 km (0.111 R)
• M4: 725,250 km (0.084 R)
• M5: 1,363,435 km (0.083 R)
• M6: 1,715,439 km (0.091 R)
• M7: 2,025,705 km (0.107 R)
• M8: 3,827,013 km (0.086 R)
• M9: 6,560,615 km (0.112 R)
• M10: 6,818,970 km (0.065 R)
• M11: 7,045,910 km (0.06 R)
• M12: 7,514,750 km (0.057 R)
• M13: 7,962,646 km (0.083 R)
• M14: 8,385,110 km (0.094 R)
• M15: 9,837,406 km (0.071 R)
• M16: 10,928,124 km (0.072 R)
• M17: 11,932,973 km (0.091 R)
• M18: 13,346,972 km (0.068 R)
• M19: 15,967,778 km (0.044 R)
• M20: 17,189,095 km (0.099 R)
• M21: 17,609,614 km (0.115 R)
• M22: 27,243,268 km (0.044 R)
• M23: 33,976,968 km (0.112 R)
• M24: 34,861,689 km (0.093 R)
• M25: 39,395,402 km (0.081 R)
• M26: 42,372,101 km (0.095 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 147.8

Radius: 5.6

Gravity: 4.71 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 7.77 AU - 12.91 AU

Year: 23372 Days

Day: 15.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 50,631,507 km

• M1: 72,256 km (0.082 R)
• M2: 410,945 km (0.063 R)
• M3: 684,859 km (0.086 R)
• M4: 1,421,180 km (0.1 R)
• M5: 1,665,024 km (0.064 R)
• M6: 2,004,761 km (0.11 R)
• M7: 5,055,660 km (0.087 R)
• M8: 6,276,827 km (0.089 R)
• M9: 6,975,898 km (0.056 R)
• M10: 10,454,049 km (0.068 R)
• M11: 16,250,069 km (0.088 R)
• M12: 19,739,140 km (0.093 R)
• M13: 20,725,139 km (0.088 R)
• M14: 32,342,162 km (0.101 R)
• M15: 33,479,704 km (0.064 R)
• M16: 37,546,971 km (0.096 R)
• M17: 45,083,712 km (0.094 R)
• M18: 48,537,478 km (0.095 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 426 - 16,398 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit