🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 418.4

Radius: 11.1

Gravity: 3.4 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.43 AU - 0.67 AU

Year: 287 Days

Day: 7.3 Hours

Environment

Temp: -145 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 69,899,708 km

• M1: 138,378 km (0.107 R)
• M2: 529,128 km (0.06 R)
• M3: 1,184,067 km (0.1 R)
• M4: 1,578,258 km (0.084 R)
• M5: 1,934,600 km (0.06 R)
• M6: 2,345,545 km (0.056 R)
• M7: 2,709,068 km (0.114 R)
• M8: 3,689,981 km (0.027 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 833.9

Radius: 14.8

Gravity: 3.81 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.53 AU - 0.83 AU

Year: 394 Days

Day: 14.7 Hours

Environment

Temp: -153 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 69,899,708 km

• M1: 184,753 km (0.089 R)
• M2: 776,563 km (0.048 R)
• M3: 1,620,295 km (0.108 R)
• M4: 2,400,148 km (0.044 R)
• M5: 2,962,487 km (0.116 R)
• M6: 3,612,789 km (0.086 R)
• M7: 4,729,985 km (0.062 R)
• M8: 5,249,838 km (0.052 R)
• M9: 5,859,150 km (0.088 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 226

Radius: 14.5

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.28 AU - 1.58 AU

Year: 1202 Days

Day: 14.1 Hours

Environment

Temp: -195 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 69,899,708 km

• M1: 180,415 km (0.113 R)
• M2: 1,057,956 km (0.114 R)
• M3: 1,640,939 km (0.082 R)
• M4: 2,247,708 km (0.065 R)
• M5: 3,063,166 km (0.086 R)
• M6: 3,697,311 km (0.098 R)
• M7: 4,560,641 km (0.113 R)
• M8: 5,320,149 km (0.1 R)
• M9: 5,929,760 km (0.04 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 870.4

Radius: 8.8

Gravity: 11.24 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 2.44 AU - 3.36 AU

Year: 3471 Days

Day: 5.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 69,899,708 km

• M1: 113,395 km (0.118 R)
• M2: 503,696 km (0.066 R)
• M3: 862,731 km (0.096 R)
• M4: 1,361,341 km (0.099 R)
• M5: 1,830,928 km (0.106 R)
• M6: 2,196,845 km (0.106 R)
• M7: 5,680,231 km (0.094 R)
• M8: 7,317,729 km (0.111 R)
• M9: 8,534,110 km (0.105 R)
• M10: 9,325,931 km (0.086 R)
• M11: 12,987,788 km (0.058 R)
• M12: 15,028,452 km (0.106 R)
• M13: 15,625,198 km (0.069 R)
• M14: 18,292,977 km (0.081 R)
• M15: 19,542,269 km (0.106 R)
• M16: 19,863,156 km (0.065 R)
• M17: 23,126,634 km (0.079 R)
• M18: 24,810,208 km (0.088 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 792.4

Radius: 9.4

Gravity: 8.97 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 2.51 AU - 3.81 AU

Year: 3949 Days

Day: 12.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 5.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 69,899,708 km

• M1: 116,986 km (0.1 R)
• M2: 574,605 km (0.107 R)
• M3: 1,934,899 km (0.053 R)
• M4: 2,306,051 km (0.08 R)
• M5: 2,707,422 km (0.053 R)
• M6: 3,507,771 km (0.089 R)
• M7: 6,207,414 km (0.099 R)
• M8: 6,891,525 km (0.035 R)
• M9: 8,010,966 km (0.114 R)
• M10: 9,013,721 km (0.115 R)
• M11: 10,955,351 km (0.086 R)
• M12: 13,260,804 km (0.058 R)
• M13: 13,922,924 km (0.119 R)
• M14: 17,812,170 km (0.093 R)
• M15: 19,126,387 km (0.095 R)
• M16: 21,320,240 km (0.114 R)
• M17: 22,513,582 km (0.039 R)
• M18: 23,899,307 km (0.034 R)
• M19: 26,280,905 km (0.118 R)

Asteroid Belt

Center: 3.48 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 3.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 363.8

Radius: 9.1

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 3.05 AU - 4.55 AU

Year: 5207 Days

Day: 6.7 Hours

Environment

Temp: -227 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 69,899,708 km

• M1: 133,292 km (0.106 R)
• M2: 644,767 km (0.116 R)
• M3: 1,713,793 km (0.045 R)
• M4: 2,287,501 km (0.06 R)
• M5: 2,913,867 km (0.112 R)
• M6: 3,549,359 km (0.101 R)
• M7: 4,769,330 km (0.063 R)
• M8: 6,248,553 km (0.12 R)
• M9: 11,620,463 km (0.1 R)
• M10: 13,063,036 km (0.101 R)
• M11: 13,953,592 km (0.104 R)
• M12: 16,300,184 km (0.09 R)
• M13: 20,556,543 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 178

Radius: 9

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 3.49 AU - 4.65 AU

Year: 5772 Days

Day: 11.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 69,899,708 km

• M1: 111,899 km (0.071 R)
• M2: 536,308 km (0.096 R)
• M3: 835,953 km (0.117 R)
• M4: 1,523,505 km (0.11 R)
• M5: 1,933,253 km (0.086 R)
• M6: 2,301,713 km (0.083 R)
• M7: 3,341,717 km (0.071 R)
• M8: 3,698,209 km (0.092 R)
• M9: 4,312,907 km (0.036 R)
• M10: 6,011,890 km (0.076 R)
• M11: 6,627,485 km (0.108 R)
• M12: 7,161,998 km (0.079 R)
• M13: 8,249,724 km (0.118 R)
• M14: 8,728,288 km (0.118 R)
• M15: 9,891,860 km (0.073 R)
• M16: 13,480,713 km (0.026 R)
• M17: 15,901,506 km (0.113 R)
• M18: 16,428,838 km (0.049 R)
• M19: 21,077,293 km (0.074 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 388.9

Radius: 6

Gravity: 10.8 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 9.12 AU - 11.56 AU

Year: 23372 Days

Day: 19.1 Hours

Environment

Temp: -242 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 69,899,708 km

• M1: 90,507 km (0.11 R)
• M2: 429,944 km (0.102 R)
• M3: 641,625 km (0.089 R)
• M4: 946,506 km (0.075 R)
• M5: 1,218,774 km (0.082 R)
• M6: 3,172,223 km (0.089 R)
• M7: 4,678,823 km (0.103 R)
• M8: 5,065,234 km (0.098 R)
• M9: 7,095,128 km (0.08 R)
• M10: 10,947,871 km (0.099 R)
• M11: 12,668,396 km (0.079 R)
• M12: 24,750,369 km (0.029 R)
• M13: 26,028,234 km (0.116 R)
• M14: 29,297,097 km (0.084 R)
• M15: 49,798,588 km (0.104 R)
• M16: 51,487,847 km (0.118 R)
• M17: 52,519,474 km (0.099 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 324 - 17,258 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit