🌌 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 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.02

Radius: 1.74

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.51 AU - 0.67 AU

Year: 288 Days

Day: 33.9 Hours

Environment

Temp: -128 °C

Axial Tilt: 44.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 60,599,566 km

• M1: 49,666 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 848.6

Radius: 12

Gravity: 5.89 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.6 AU - 0.76 AU

Year: 357 Days

Day: 14.9 Hours

Environment

Temp: -133 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 60,599,566 km

• M1: 149,299 km (0.08 R)
• M2: 614,698 km (0.081 R)
• M3: 1,062,145 km (0.056 R)
• M4: 1,565,392 km (0.093 R)
• M5: 1,963,322 km (0.111 R)
• M6: 2,375,315 km (0.067 R)
• M7: 2,969,967 km (0.111 R)
• M8: 3,494,157 km (0.108 R)
• M9: 3,988,279 km (0.052 R)
• M10: 4,403,114 km (0.111 R)
• M11: 4,787,880 km (0.077 R)
• M12: 5,210,643 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 135.3

Radius: 8.7

Gravity: 1.79 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 0.63 AU - 0.87 AU

Year: 413 Days

Day: 9.3 Hours

Environment

Temp: -133 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 60,599,566 km

• M1: 108,309 km (0.039 R)
• M2: 418,276 km (0.052 R)
• M3: 866,172 km (0.076 R)
• M4: 1,177,485 km (0.11 R)
• M5: 1,592,918 km (0.035 R)
• M6: 2,662,244 km (0.073 R)
• M7: 3,071,693 km (0.047 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 701

Radius: 10.3

Gravity: 6.61 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 0.83 AU - 0.95 AU

Year: 534 Days

Day: 13 Hours

Environment

Temp: -158 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 60,599,566 km

• M1: 128,056 km (0.032 R)
• M2: 485,295 km (0.051 R)
• M3: 1,128,566 km (0.035 R)
• M4: 1,536,520 km (0.094 R)
• M5: 2,393,865 km (0.112 R)
• M6: 2,785,662 km (0.107 R)
• M7: 3,391,384 km (0.055 R)
• M8: 3,792,904 km (0.083 R)
• M9: 4,139,822 km (0.079 R)
• M10: 4,553,460 km (0.048 R)
• M11: 5,192,243 km (0.041 R)
• M12: 5,586,134 km (0.072 R)
• M13: 6,414,457 km (0.098 R)
• M14: 6,768,107 km (0.048 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 234.9

Radius: 9.4

Gravity: 2.66 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 2.08 AU - 3.02 AU

Year: 2589 Days

Day: 9 Hours

Environment

Temp: -192 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 60,599,566 km

• M1: 117,285 km (0.09 R)
• M2: 467,344 km (0.118 R)
• M3: 806,931 km (0.101 R)
• M4: 1,117,945 km (0.112 R)
• M5: 1,735,934 km (0.119 R)
• M6: 2,632,474 km (0.066 R)
• M7: 2,977,446 km (0.111 R)
• M8: 3,543,974 km (0.096 R)
• M9: 4,001,593 km (0.084 R)
• M10: 4,421,963 km (0.104 R)
• M11: 4,953,036 km (0.099 R)
• M12: 5,287,387 km (0.082 R)
• M13: 5,863,040 km (0.11 R)
• M14: 6,529,049 km (0.074 R)
• M15: 6,880,604 km (0.116 R)
• M16: 7,218,247 km (0.095 R)
• M17: 8,096,985 km (0.065 R)
• M18: 11,848,750 km (0.101 R)
• M19: 12,563,678 km (0.051 R)
• M20: 12,912,241 km (0.04 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 806.2

Radius: 8

Gravity: 12.6 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 3.31 AU - 3.81 AU

Year: 4271 Days

Day: 5.3 Hours

Environment

Temp: -208 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,599,566 km

• M1: 99,632 km (0.111 R)
• M2: 383,719 km (0.079 R)
• M3: 707,448 km (0.028 R)
• M4: 1,368,222 km (0.099 R)
• M5: 1,644,230 km (0.103 R)
• M6: 2,099,756 km (0.117 R)
• M7: 3,739,348 km (0.098 R)
• M8: 7,319,375 km (0.118 R)
• M9: 7,667,639 km (0.095 R)
• M10: 9,332,663 km (0.061 R)
• M11: 15,984,832 km (0.067 R)
• M12: 17,540,350 km (0.095 R)
• M13: 19,391,624 km (0.038 R)
• M14: 20,672,930 km (0.09 R)
• M15: 21,299,146 km (0.038 R)
• M16: 25,088,909 km (0.082 R)
• M17: 26,202,815 km (0.114 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 764.8

Radius: 7.3

Gravity: 14.35 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 6.4 AU - 8.9 AU

Year: 13453 Days

Day: 24.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 24.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 60,599,566 km

• M1: 94,396 km (0.026 R)
• M2: 352,901 km (0.118 R)
• M3: 627,413 km (0.091 R)
• M4: 1,824,496 km (0.093 R)
• M5: 5,351,265 km (0.086 R)
• M6: 6,699,292 km (0.12 R)
• M7: 10,103,092 km (0.083 R)
• M8: 16,252,013 km (0.11 R)
• M9: 20,845,266 km (0.108 R)
• M10: 24,412,129 km (0.057 R)
• M11: 33,453,375 km (0.118 R)
• M12: 35,065,442 km (0.065 R)
• M13: 36,340,165 km (0.105 R)
• M14: 39,798,718 km (0.086 R)
• M15: 44,201,683 km (0.105 R)
• M16: 49,550,704 km (0.09 R)
• M17: 58,447,290 km (0.117 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 429 - 14,819 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit