🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 882.3

Radius: 11.9

Gravity: 6.23 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.6 AU - 0.98 AU

Year: 446 Days

Day: 11.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 23,026,660 km

• M1: 148,551 km (0.119 R)
• M2: 672,442 km (0.069 R)
• M3: 1,625,680 km (0.079 R)
• M4: 2,156,304 km (0.105 R)
• M5: 3,457,356 km (0.101 R)
• M6: 4,157,774 km (0.071 R)
• M7: 5,596,456 km (0.045 R)
• M8: 6,167,621 km (0.056 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 407

Radius: 13.7

Gravity: 2.17 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 0.92 AU - 0.96 AU

Year: 579 Days

Day: 7.6 Hours

Environment

Temp: -147 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 23,026,660 km

• M1: 170,392 km (0.109 R)
• M2: 607,966 km (0.062 R)
• M3: 1,048,382 km (0.087 R)
• M4: 1,561,203 km (0.056 R)
• M5: 2,113,519 km (0.112 R)
• M6: 2,595,074 km (0.119 R)
• M7: 3,072,441 km (0.109 R)
• M8: 3,784,228 km (0.068 R)
• M9: 4,574,553 km (0.114 R)
• M10: 5,197,928 km (0.111 R)
• M11: 5,894,605 km (0.094 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 179.8

Radius: 15

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 2.2 AU - 3.64 AU

Year: 3173 Days

Day: 7.7 Hours

Environment

Temp: -195 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 23,026,660 km

• M1: 186,698 km (0.081 R)
• M2: 725,849 km (0.108 R)
• M3: 1,531,284 km (0.115 R)
• M4: 2,442,335 km (0.066 R)
• M5: 3,593,490 km (0.101 R)
• M6: 4,875,694 km (0.096 R)
• M7: 7,054,288 km (0.12 R)
• M8: 9,148,209 km (0.094 R)
• M9: 9,886,624 km (0.094 R)
• M10: 10,838,964 km (0.101 R)
• M11: 11,446,481 km (0.083 R)
• M12: 12,419,615 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 40

Radius: 14.4

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 2.85 AU - 2.99 AU

Year: 3173 Days

Day: 13.5 Hours

Environment

Temp: -201 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 23,026,660 km

• M1: 182,360 km (0.034 R)
• M2: 709,094 km (0.095 R)
• M3: 1,212,790 km (0.08 R)
• M4: 1,866,383 km (0.103 R)
• M5: 2,761,277 km (0.1 R)
• M6: 3,407,241 km (0.06 R)
• M7: 4,901,275 km (0.069 R)
• M8: 5,738,126 km (0.118 R)
• M9: 6,520,672 km (0.096 R)
• M10: 8,523,787 km (0.071 R)

Planet 5 - Ice Giant

Semi-Major Axis: 7.01 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 291.9

Radius: 5.1

Gravity: 11.22 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 6.6 AU - 7.42 AU

Year: 11801 Days

Day: 24.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 23,026,660 km

• M1: 63,579 km (0.057 R)
• M2: 425,307 km (0.11 R)
• M3: 786,735 km (0.11 R)
• M4: 955,781 km (0.075 R)
• M5: 1,418,637 km (0.081 R)
• M6: 4,029,269 km (0.101 R)
• M7: 5,273,624 km (0.034 R)
• M8: 8,407,251 km (0.07 R)
• M9: 11,520,682 km (0.072 R)
• M10: 13,046,430 km (0.054 R)
• M11: 16,031,955 km (0.097 R)
• M12: 21,357,041 km (0.119 R)
• M13: 23,476,693 km (0.084 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 953.4

Radius: 5

Gravity: 38.14 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 7.06 AU - 10.44 AU

Year: 16457 Days

Day: 21 Hours

Environment

Temp: -238 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 23,026,660 km

• M1: 63,280 km (0.071 R)
• M2: 308,770 km (0.068 R)
• M3: 496,815 km (0.104 R)
• M4: 723,306 km (0.098 R)
• M5: 2,218,836 km (0.11 R)
• M6: 2,668,377 km (0.084 R)
• M7: 3,837,634 km (0.082 R)
• M8: 4,976,972 km (0.067 R)
• M9: 5,274,821 km (0.099 R)
• M10: 5,824,443 km (0.097 R)
• M11: 7,129,535 km (0.103 R)
• M12: 8,151,588 km (0.089 R)
• M13: 9,949,455 km (0.109 R)
• M14: 12,735,566 km (0.089 R)
• M15: 14,084,789 km (0.104 R)
• M16: 32,012,598 km (0.089 R)
• M17: 34,757,270 km (0.115 R)
• M18: 41,611,396 km (0.109 R)
• M19: 44,082,005 km (0.055 R)
• M20: 44,397,656 km (0.059 R)
• M21: 48,470,159 km (0.096 R)
• M22: 50,338,337 km (0.11 R)
• M23: 60,987,462 km (0.06 R)
• M24: 67,042,136 km (0.101 R)
• M25: 67,878,538 km (0.094 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 16.7

Radius: 5.4

Gravity: 0.57 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 8.57 AU - 12.23 AU

Year: 21325 Days

Day: 21.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 23,026,660 km

• M1: 68,067 km (0.11 R)
• M2: 400,623 km (0.083 R)
• M3: 914,941 km (0.098 R)
• M4: 1,085,632 km (0.089 R)
• M5: 1,439,580 km (0.113 R)
• M6: 4,319,040 km (0.046 R)
• M7: 6,001,567 km (0.114 R)
• M8: 9,333,262 km (0.109 R)
• M9: 13,821,646 km (0.102 R)
• M10: 21,151,493 km (0.115 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 269 - 11,464 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit