🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.45 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 810.5

Radius: 12.5

Gravity: 5.19 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.68 AU - 1.1 AU

Year: 560 Days

Day: 7.9 Hours

Environment

Temp: -173 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 46,348,322 km

• M1: 155,582 km (0.063 R)
• M2: 599,738 km (0.101 R)
• M3: 1,096,552 km (0.098 R)
• M4: 1,701,077 km (0.094 R)
• M5: 2,113,818 km (0.077 R)
• M6: 2,946,779 km (0.094 R)
• M7: 4,016,104 km (0.055 R)
• M8: 4,648,305 km (0.111 R)
• M9: 5,259,412 km (0.036 R)
• M10: 5,665,870 km (0.05 R)
• M11: 6,112,419 km (0.05 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 869.7

Radius: 8.7

Gravity: 11.49 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 0.83 AU - 1.01 AU

Year: 588 Days

Day: 8.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 46,348,322 km

• M1: 108,309 km (0.111 R)
• M2: 429,047 km (0.108 R)
• M3: 1,041,800 km (0.117 R)
• M4: 1,348,026 km (0.065 R)
• M5: 1,619,247 km (0.031 R)
• M6: 2,375,315 km (0.119 R)
• M7: 3,297,436 km (0.099 R)
• M8: 3,616,229 km (0.081 R)
• M9: 4,552,263 km (0.109 R)
• M10: 4,982,507 km (0.086 R)
• M11: 6,643,641 km (0.115 R)
• M12: 7,024,218 km (0.099 R)
• M13: 7,645,199 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 899.4

Radius: 11.6

Gravity: 6.68 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 1.14 AU - 1.76 AU

Year: 1164 Days

Day: 14.7 Hours

Environment

Temp: -188 °C

Axial Tilt: 47.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 46,348,322 km

• M1: 144,212 km (0.075 R)
• M2: 512,822 km (0.086 R)
• M3: 1,364,183 km (0.08 R)
• M4: 1,903,932 km (0.086 R)
• M5: 2,423,186 km (0.117 R)
• M6: 2,924,788 km (0.085 R)
• M7: 3,448,381 km (0.113 R)
• M8: 4,243,643 km (0.118 R)
• M9: 5,489,494 km (0.092 R)
• M10: 6,313,479 km (0.095 R)
• M11: 6,940,294 km (0.09 R)
• M12: 7,688,134 km (0.079 R)
• M13: 8,290,714 km (0.052 R)
• M14: 8,661,268 km (0.056 R)
• M15: 9,223,008 km (0.117 R)
• M16: 9,683,470 km (0.115 R)
• M17: 10,683,981 km (0.111 R)
• M18: 11,123,649 km (0.056 R)
• M19: 11,681,200 km (0.068 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 149.9

Radius: 10.3

Gravity: 1.41 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.36 AU - 1.74 AU

Year: 1287 Days

Day: 10.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 46,348,322 km

• M1: 130,150 km (0.028 R)
• M2: 547,379 km (0.104 R)
• M3: 913,295 km (0.119 R)
• M4: 1,260,960 km (0.079 R)
• M5: 2,988,965 km (0.054 R)
• M6: 5,108,618 km (0.051 R)
• M7: 6,448,865 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145.4

Radius: 14

Gravity: 0.74 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 2.36 AU - 2.52 AU

Year: 2542 Days

Day: 8 Hours

Environment

Temp: -207 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 46,348,322 km

• M1: 174,132 km (0.117 R)
• M2: 823,985 km (0.065 R)
• M3: 1,310,178 km (0.088 R)
• M4: 2,147,777 km (0.119 R)
• M5: 2,688,573 km (0.073 R)
• M6: 3,291,303 km (0.104 R)
• M7: 3,934,424 km (0.104 R)
• M8: 4,497,660 km (0.052 R)
• M9: 6,870,881 km (0.116 R)
• M10: 7,436,211 km (0.089 R)
• M11: 7,979,251 km (0.045 R)
• M12: 8,914,986 km (0.092 R)
• M13: 10,582,105 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 818.7

Radius: 13.2

Gravity: 4.7 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 2.43 AU - 2.69 AU

Year: 2731 Days

Day: 9.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 46,348,322 km

• M1: 164,558 km (0.072 R)
• M2: 635,641 km (0.104 R)
• M3: 1,139,188 km (0.098 R)
• M4: 1,749,846 km (0.098 R)
• M5: 2,618,561 km (0.118 R)
• M6: 3,436,413 km (0.105 R)
• M7: 4,310,363 km (0.109 R)
• M8: 4,963,807 km (0.1 R)
• M9: 5,402,129 km (0.113 R)
• M10: 6,108,380 km (0.072 R)
• M11: 6,526,806 km (0.05 R)
• M12: 7,515,647 km (0.056 R)
• M13: 9,382,479 km (0.081 R)
• M14: 10,171,159 km (0.104 R)
• M15: 10,641,345 km (0.106 R)
• M16: 12,535,703 km (0.114 R)
• M17: 13,965,410 km (0.053 R)
• M18: 14,547,047 km (0.062 R)
• M19: 14,993,895 km (0.082 R)
• M20: 18,383,484 km (0.112 R)
• M21: 19,023,763 km (0.105 R)
• M22: 19,618,714 km (0.101 R)
• M23: 20,042,524 km (0.087 R)
• M24: 20,534,253 km (0.077 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 381

Radius: 5.1

Gravity: 14.65 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 6.62 AU - 7.78 AU

Year: 12883 Days

Day: 21 Hours

Environment

Temp: -229 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 46,348,322 km

• M1: 63,429 km (0.083 R)
• M2: 645,515 km (0.053 R)
• M3: 930,798 km (0.087 R)
• M4: 1,131,110 km (0.042 R)
• M5: 1,895,405 km (0.091 R)
• M6: 5,027,087 km (0.113 R)
• M7: 5,716,583 km (0.079 R)
• M8: 6,319,164 km (0.044 R)
• M9: 7,160,801 km (0.099 R)
• M10: 7,733,761 km (0.114 R)
• M11: 8,248,827 km (0.097 R)
• M12: 8,924,261 km (0.043 R)
• M13: 9,204,607 km (0.079 R)
• M14: 11,225,525 km (0.082 R)
• M15: 12,396,727 km (0.061 R)
• M16: 13,342,036 km (0.071 R)
• M17: 16,256,801 km (0.049 R)
• M18: 16,534,903 km (0.082 R)
• M19: 17,898,787 km (0.107 R)
• M20: 18,721,874 km (0.12 R)
• M21: 22,267,194 km (0.059 R)
• M22: 24,741,992 km (0.038 R)
• M23: 27,492,199 km (0.114 R)
• M24: 29,195,520 km (0.115 R)
• M25: 35,071,276 km (0.082 R)
• M26: 37,796,351 km (0.093 R)
• M27: 39,397,497 km (0.114 R)
• M28: 45,977,110 km (0.089 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 290.1

Radius: 7.1

Gravity: 5.75 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 6.28 AU - 9.38 AU

Year: 14611 Days

Day: 20.2 Hours

Environment

Temp: -240 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 46,348,322 km

• M1: 164,258 km (0.119 R)
• M2: 420,819 km (0.104 R)
• M3: 735,872 km (0.031 R)
• M4: 1,092,962 km (0.086 R)
• M5: 2,626,639 km (0.074 R)
• M6: 3,347,103 km (0.112 R)
• M7: 3,869,947 km (0.11 R)
• M8: 4,620,480 km (0.091 R)
• M9: 5,870,819 km (0.094 R)
• M10: 7,784,774 km (0.119 R)
• M11: 8,836,896 km (0.099 R)
• M12: 12,329,109 km (0.087 R)
• M13: 12,675,577 km (0.096 R)
• M14: 15,351,285 km (0.043 R)
• M15: 17,282,892 km (0.063 R)
• M16: 17,936,785 km (0.086 R)
• M17: 21,705,005 km (0.097 R)
• M18: 24,130,436 km (0.095 R)
• M19: 27,020,068 km (0.086 R)
• M20: 42,570,318 km (0.031 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 365 - 13,720 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit