🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.32 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.59

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.59 AU - 0.69 AU

Year: 336 Days

Day: 12.8 Hours

Environment

Temp: -133 °C

Axial Tilt: 35.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.62

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.56 AU - 0.78 AU

Year: 360 Days

Day: 38.6 Hours

Environment

Temp: -125 °C

Axial Tilt: 24.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 750.7

Radius: 14.2

Gravity: 3.72 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 0.9 AU - 1.1 AU

Year: 656 Days

Day: 10.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 44,223,724 km

• M1: 176,675 km (0.045 R)
• M2: 691,142 km (0.116 R)
• M3: 1,353,711 km (0.091 R)
• M4: 2,086,741 km (0.111 R)
• M5: 2,594,476 km (0.063 R)
• M6: 3,074,386 km (0.093 R)
• M7: 3,573,444 km (0.035 R)
• M8: 4,171,686 km (0.106 R)
• M9: 4,737,166 km (0.074 R)
• M10: 6,062,005 km (0.117 R)
• M11: 7,485,728 km (0.078 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 953.9

Radius: 11.4

Gravity: 7.34 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.12 AU - 1.18 AU

Year: 809 Days

Day: 12.2 Hours

Environment

Temp: -171 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 44,223,724 km

• M1: 141,819 km (0.085 R)
• M2: 862,731 km (0.025 R)
• M3: 1,375,552 km (0.111 R)
• M4: 1,757,326 km (0.062 R)
• M5: 2,263,266 km (0.087 R)
• M6: 2,979,541 km (0.086 R)
• M7: 3,527,368 km (0.034 R)
• M8: 3,997,405 km (0.103 R)
• M9: 4,560,790 km (0.086 R)
• M10: 5,624,132 km (0.108 R)
• M11: 6,246,459 km (0.064 R)
• M12: 6,731,755 km (0.099 R)
• M13: 7,506,672 km (0.09 R)
• M14: 8,445,398 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 956.8

Radius: 9.3

Gravity: 11.06 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 2.63 AU - 3.65 AU

Year: 3650 Days

Day: 8.7 Hours

Environment

Temp: -196 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 44,223,724 km

• M1: 116,387 km (0.031 R)
• M2: 464,801 km (0.066 R)
• M3: 873,652 km (0.068 R)
• M4: 1,244,355 km (0.116 R)
• M5: 2,091,677 km (0.061 R)
• M6: 3,625,205 km (0.054 R)
• M7: 4,014,010 km (0.056 R)
• M8: 4,335,496 km (0.098 R)
• M9: 4,978,617 km (0.116 R)
• M10: 5,405,121 km (0.073 R)
• M11: 6,090,429 km (0.032 R)
• M12: 6,641,697 km (0.118 R)
• M13: 6,994,598 km (0.052 R)
• M14: 7,773,405 km (0.083 R)
• M15: 8,165,650 km (0.045 R)
• M16: 9,542,848 km (0.104 R)
• M17: 10,586,443 km (0.117 R)
• M18: 11,843,364 km (0.09 R)
• M19: 12,172,629 km (0.109 R)
• M20: 14,705,171 km (0.034 R)
• M21: 15,085,748 km (0.106 R)
• M22: 16,037,490 km (0.105 R)
• M23: 19,004,465 km (0.109 R)
• M24: 19,849,094 km (0.115 R)
• M25: 20,922,758 km (0.07 R)
• M26: 26,317,108 km (0.058 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 667

Radius: 10.6

Gravity: 5.94 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 3.08 AU - 4.08 AU

Year: 4444 Days

Day: 13.3 Hours

Environment

Temp: -215 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 44,223,724 km

• M1: 132,095 km (0.097 R)
• M2: 567,275 km (0.115 R)
• M3: 1,025,643 km (0.034 R)
• M4: 1,459,776 km (0.119 R)
• M5: 2,015,532 km (0.068 R)
• M6: 2,691,266 km (0.08 R)
• M7: 3,870,845 km (0.103 R)
• M8: 4,662,966 km (0.052 R)
• M9: 5,045,188 km (0.067 R)
• M10: 5,531,830 km (0.095 R)
• M11: 6,789,499 km (0.116 R)
• M12: 8,637,332 km (0.079 R)
• M13: 8,981,557 km (0.103 R)
• M14: 12,898,628 km (0.09 R)
• M15: 13,706,905 km (0.099 R)
• M16: 15,201,986 km (0.052 R)
• M17: 16,103,762 km (0.119 R)
• M18: 17,340,936 km (0.054 R)
• M19: 20,540,087 km (0.068 R)
• M20: 23,962,587 km (0.118 R)
• M21: 24,797,343 km (0.094 R)
• M22: 25,260,797 km (0.05 R)
• M23: 26,284,795 km (0.109 R)
• M24: 26,847,432 km (0.048 R)
• M25: 27,665,284 km (0.118 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 409.4

Radius: 13.2

Gravity: 2.35 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 3.27 AU - 4.57 AU

Year: 5091 Days

Day: 9 Hours

Environment

Temp: -219 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 44,223,724 km

• M1: 164,109 km (0.096 R)
• M2: 1,491,640 km (0.106 R)
• M3: 2,621,703 km (0.118 R)
• M4: 4,103,170 km (0.069 R)
• M5: 7,092,285 km (0.109 R)
• M6: 8,825,826 km (0.11 R)
• M7: 10,912,566 km (0.07 R)
• M8: 11,661,154 km (0.06 R)
• M9: 13,017,109 km (0.114 R)
• M10: 15,818,030 km (0.092 R)
• M11: 16,377,825 km (0.037 R)
• M12: 19,187,423 km (0.081 R)
• M13: 21,207,742 km (0.072 R)
• M14: 23,294,333 km (0.083 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 739.2

Radius: 8.7

Gravity: 9.77 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 4.18 AU - 6.88 AU

Year: 8531 Days

Day: 10.6 Hours

Environment

Temp: -218 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 44,223,724 km

• M1: 108,159 km (0.113 R)
• M2: 396,734 km (0.07 R)
• M3: 733,478 km (0.095 R)
• M4: 1,035,666 km (0.082 R)
• M5: 1,409,810 km (0.105 R)
• M6: 1,693,597 km (0.118 R)
• M7: 2,548,101 km (0.091 R)
• M8: 2,952,763 km (0.107 R)
• M9: 3,739,498 km (0.111 R)
• M10: 4,836,200 km (0.071 R)
• M11: 5,172,346 km (0.054 R)
• M12: 5,491,289 km (0.088 R)
• M13: 6,204,422 km (0.118 R)
• M14: 7,814,095 km (0.109 R)
• M15: 10,121,642 km (0.098 R)
• M16: 10,419,940 km (0.118 R)
• M17: 11,836,184 km (0.101 R)
• M18: 15,831,045 km (0.109 R)
• M19: 19,397,458 km (0.118 R)
• M20: 20,484,736 km (0.067 R)
• M21: 22,780,165 km (0.104 R)
• M22: 27,488,459 km (0.098 R)
• M23: 30,171,647 km (0.102 R)
• M24: 31,735,393 km (0.109 R)
• M25: 34,572,517 km (0.086 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 404 - 13,218 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit