🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.3

Radius: 13.8

Gravity: 3.92 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.72 AU - 0.76 AU

Year: 418 Days

Day: 10 Hours

Environment

Temp: -152 °C

Axial Tilt: 41.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 34,762,882 km

• M1: 173,234 km (0.091 R)
• M2: 643,121 km (0.105 R)
• M3: 1,291,179 km (0.109 R)
• M4: 1,921,884 km (0.095 R)
• M5: 2,604,948 km (0.095 R)
• M6: 3,135,721 km (0.102 R)
• M7: 5,306,536 km (0.055 R)
• M8: 5,768,045 km (0.113 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 873.4

Radius: 13.7

Gravity: 4.65 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 0.71 AU - 0.85 AU

Year: 452 Days

Day: 7.4 Hours

Environment

Temp: -155 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 34,762,882 km

• M1: 170,392 km (0.111 R)
• M2: 642,972 km (0.113 R)
• M3: 1,221,766 km (0.062 R)
• M4: 1,686,566 km (0.082 R)
• M5: 2,181,436 km (0.116 R)
• M6: 2,848,044 km (0.118 R)
• M7: 3,349,646 km (0.075 R)
• M8: 3,830,304 km (0.062 R)
• M9: 4,256,359 km (0.112 R)
• M10: 5,140,183 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 103.1

Radius: 14.4

Gravity: 0.5 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.76 AU - 0.9 AU

Year: 496 Days

Day: 13.6 Hours

Environment

Temp: -154 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 34,762,882 km

• M1: 179,069 km (0.073 R)
• M2: 692,937 km (0.032 R)
• M3: 1,727,556 km (0.09 R)
• M4: 2,425,580 km (0.106 R)
• M5: 2,906,687 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 897.6

Radius: 14.3

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.8 AU - 1.1 AU

Year: 607 Days

Day: 9.9 Hours

Environment

Temp: -147 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 34,762,882 km

• M1: 177,872 km (0.08 R)
• M2: 670,049 km (0.119 R)
• M3: 1,121,984 km (0.097 R)
• M4: 1,592,469 km (0.114 R)
• M5: 2,169,468 km (0.084 R)
• M6: 2,816,180 km (0.078 R)
• M7: 3,482,190 km (0.053 R)
• M8: 4,759,905 km (0.118 R)
• M9: 5,308,480 km (0.07 R)
• M10: 5,842,096 km (0.09 R)
• M11: 6,391,120 km (0.039 R)
• M12: 7,368,144 km (0.084 R)
• M13: 7,893,083 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 241.4

Radius: 13.1

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 2.81 AU - 4.65 AU

Year: 4726 Days

Day: 10.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 34,762,882 km

• M1: 163,211 km (0.077 R)
• M2: 746,793 km (0.103 R)
• M3: 1,438,084 km (0.096 R)
• M4: 1,898,846 km (0.08 R)
• M5: 2,725,524 km (0.056 R)
• M6: 3,283,524 km (0.094 R)
• M7: 3,936,818 km (0.105 R)
• M8: 5,505,052 km (0.107 R)
• M9: 6,319,463 km (0.069 R)
• M10: 6,886,588 km (0.071 R)
• M11: 9,179,475 km (0.062 R)
• M12: 9,685,565 km (0.117 R)
• M13: 10,325,245 km (0.11 R)
• M14: 12,112,341 km (0.097 R)
• M15: 12,766,383 km (0.11 R)
• M16: 13,443,912 km (0.079 R)
• M17: 13,861,739 km (0.097 R)
• M18: 15,317,924 km (0.086 R)
• M19: 15,928,134 km (0.092 R)
• M20: 17,251,626 km (0.075 R)
• M21: 17,690,247 km (0.081 R)
• M22: 18,934,902 km (0.086 R)
• M23: 19,816,632 km (0.113 R)
• M24: 20,480,397 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 244.8

Radius: 8.2

Gravity: 3.64 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 4.25 AU - 5.21 AU

Year: 6748 Days

Day: 8.9 Hours

Environment

Temp: -213 °C

Axial Tilt: 4.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 34,762,882 km

• M1: 102,026 km (0.046 R)
• M2: 744,399 km (0.071 R)
• M3: 1,498,821 km (0.096 R)
• M4: 2,218,237 km (0.113 R)
• M5: 3,683,399 km (0.058 R)
• M6: 5,565,490 km (0.089 R)
• M7: 5,903,282 km (0.076 R)
• M8: 10,036,072 km (0.107 R)
• M9: 12,142,710 km (0.11 R)
• M10: 16,167,790 km (0.049 R)
• M11: 16,509,920 km (0.113 R)
• M12: 17,505,943 km (0.098 R)
• M13: 18,294,024 km (0.117 R)
• M14: 21,137,880 km (0.07 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 126

Radius: 5.2

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 6.62 AU - 9.06 AU

Year: 14401 Days

Day: 17.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 3.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 34,762,882 km

• M1: 65,075 km (0.109 R)
• M2: 492,327 km (0.086 R)
• M3: 902,225 km (0.075 R)
• M4: 1,501,963 km (0.059 R)
• M5: 2,940,496 km (0.105 R)
• M6: 7,447,580 km (0.116 R)
• M7: 7,979,251 km (0.118 R)
• M8: 16,785,330 km (0.042 R)
• M9: 18,848,285 km (0.097 R)
• M10: 19,406,883 km (0.073 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: 429 - 17,853 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit