🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 240.9

Radius: 9.2

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.6 AU - 0.6 AU

Year: 310 Days

Day: 10.1 Hours

Environment

Temp: -142 °C

Axial Tilt: 25.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 17,640,456 km

• M1: 114,442 km (0.106 R)
• M2: 416,032 km (0.114 R)
• M3: 711,487 km (0.055 R)
• M4: 1,066,782 km (0.098 R)
• M5: 1,420,731 km (0.119 R)
• M6: 1,957,787 km (0.075 R)
• M7: 2,575,926 km (0.115 R)
• M8: 3,047,608 km (0.078 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 577.1

Radius: 9.2

Gravity: 6.82 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 0.58 AU - 0.66 AU

Year: 326 Days

Day: 7.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 17,640,456 km

• M1: 118,631 km (0.025 R)
• M2: 505,790 km (0.11 R)
• M3: 823,237 km (0.118 R)
• M4: 1,272,330 km (0.117 R)
• M5: 1,651,710 km (0.107 R)
• M6: 2,020,918 km (0.094 R)
• M7: 2,359,009 km (0.08 R)
• M8: 2,763,222 km (0.11 R)
• M9: 3,192,269 km (0.098 R)
• M10: 3,517,644 km (0.045 R)
• M11: 4,109,304 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 351.3

Radius: 9

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.67 AU - 0.93 AU

Year: 477 Days

Day: 12.7 Hours

Environment

Temp: -172 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 17,640,456 km

• M1: 113,994 km (0.104 R)
• M2: 518,207 km (0.063 R)
• M3: 884,722 km (0.1 R)
• M4: 1,167,312 km (0.066 R)
• M5: 1,486,255 km (0.099 R)
• M6: 1,985,014 km (0.113 R)
• M7: 3,047,757 km (0.09 R)
• M8: 3,770,166 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 509.8

Radius: 15

Gravity: 2.27 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.73 AU - 0.93 AU

Year: 504 Days

Day: 6.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 17,640,456 km

• M1: 186,549 km (0.054 R)
• M2: 723,904 km (0.099 R)
• M3: 1,194,988 km (0.115 R)
• M4: 1,921,285 km (0.104 R)
• M5: 2,513,394 km (0.074 R)
• M6: 3,017,688 km (0.111 R)
• M7: 4,180,363 km (0.054 R)
• M8: 4,850,262 km (0.083 R)
• M9: 5,877,252 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 176.9

Radius: 15

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 1.2 AU - 1.42 AU

Year: 1000 Days

Day: 7.3 Hours

Environment

Temp: -182 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 17,640,456 km

• M1: 186,549 km (0.097 R)
• M2: 1,203,814 km (0.117 R)
• M3: 1,933,104 km (0.051 R)
• M4: 2,611,231 km (0.112 R)
• M5: 3,813,399 km (0.115 R)
• M6: 5,145,419 km (0.112 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 868.8

Radius: 15

Gravity: 3.86 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 1.45 AU - 1.59 AU

Year: 1250 Days

Day: 5.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 26.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 17,640,456 km

• M1: 186,549 km (0.115 R)
• M2: 882,478 km (0.06 R)
• M3: 1,374,804 km (0.04 R)
• M4: 1,852,470 km (0.101 R)
• M5: 2,541,369 km (0.1 R)
• M6: 3,664,549 km (0.077 R)
• M7: 4,313,056 km (0.055 R)
• M8: 5,387,319 km (0.113 R)
• M9: 6,067,690 km (0.119 R)
• M10: 6,829,891 km (0.119 R)
• M11: 7,548,409 km (0.112 R)
• M12: 9,819,006 km (0.074 R)
• M13: 10,871,427 km (0.06 R)
• M14: 12,589,409 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 444.7

Radius: 12.4

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 1.45 AU - 2.37 AU

Year: 1760 Days

Day: 8.9 Hours

Environment

Temp: -203 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 17,640,456 km

• M1: 154,385 km (0.083 R)
• M2: 796,160 km (0.111 R)
• M3: 1,297,014 km (0.087 R)
• M4: 1,793,529 km (0.119 R)
• M5: 2,514,740 km (0.08 R)
• M6: 3,254,053 km (0.066 R)
• M7: 3,993,964 km (0.082 R)
• M8: 5,124,325 km (0.084 R)
• M9: 6,243,766 km (0.12 R)
• M10: 9,861,641 km (0.098 R)
• M11: 11,766,321 km (0.119 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 273.3

Radius: 8.8

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 2.79 AU - 3.29 AU

Year: 3535 Days

Day: 14.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 17,640,456 km

• M1: 109,805 km (0.053 R)
• M2: 1,664,725 km (0.051 R)
• M3: 1,976,487 km (0.082 R)
• M4: 2,574,430 km (0.068 R)
• M5: 2,978,643 km (0.103 R)
• M6: 3,728,278 km (0.11 R)
• M7: 4,069,062 km (0.069 R)
• M8: 4,493,022 km (0.115 R)
• M9: 5,695,041 km (0.088 R)
• M10: 6,045,549 km (0.075 R)
• M11: 6,357,461 km (0.106 R)
• M12: 7,534,946 km (0.12 R)
• M13: 8,525,134 km (0.069 R)
• M14: 9,018,208 km (0.078 R)
• M15: 10,061,205 km (0.11 R)
• M16: 10,500,125 km (0.119 R)
• M17: 14,763,515 km (0.074 R)
• M18: 15,523,023 km (0.107 R)
• M19: 16,258,446 km (0.114 R)
• M20: 17,483,204 km (0.11 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 279 - 12,011 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit