🌌 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: 924

Radius: 14.7

Gravity: 4.28 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 0.75 AU - 0.83 AU

Year: 453 Days

Day: 10.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 37,497,454 km

• M1: 182,809 km (0.079 R)
• M2: 682,166 km (0.12 R)
• M3: 1,158,187 km (0.048 R)
• M4: 1,619,098 km (0.06 R)
• M5: 2,161,988 km (0.071 R)
• M6: 2,658,653 km (0.098 R)
• M7: 3,185,238 km (0.103 R)
• M8: 3,690,131 km (0.068 R)
• M9: 4,191,732 km (0.102 R)
• M10: 5,623,982 km (0.028 R)
• M11: 6,124,836 km (0.046 R)
• M12: 6,675,057 km (0.111 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 207.5

Radius: 11.8

Gravity: 1.49 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.08 AU - 1.14 AU

Year: 755 Days

Day: 7.7 Hours

Environment

Temp: -173 °C

Axial Tilt: 12.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 37,497,454 km

• M1: 146,756 km (0.099 R)
• M2: 530,175 km (0.089 R)
• M3: 898,934 km (0.07 R)
• M4: 1,321,248 km (0.111 R)
• M5: 2,344,797 km (0.087 R)
• M6: 2,765,616 km (0.043 R)
• M7: 3,862,617 km (0.051 R)
• M8: 4,524,887 km (0.042 R)
• M9: 4,982,058 km (0.119 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 150.3

Radius: 8.5

Gravity: 2.08 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 0.9 AU - 1.46 AU

Year: 828 Days

Day: 14.1 Hours

Environment

Temp: -175 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 37,497,454 km

• M1: 105,766 km (0.094 R)
• M2: 373,995 km (0.046 R)
• M3: 716,275 km (0.117 R)
• M4: 1,001,558 km (0.117 R)
• M5: 1,310,029 km (0.073 R)
• M6: 1,952,701 km (0.114 R)
• M7: 2,680,794 km (0.088 R)
• M8: 3,285,917 km (0.066 R)
• M9: 4,136,830 km (0.09 R)
• M10: 4,722,506 km (0.05 R)
• M11: 5,442,221 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 150.8

Radius: 9

Gravity: 1.86 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 2.99 AU - 3.27 AU

Year: 3575 Days

Day: 9.3 Hours

Environment

Temp: -209 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 37,497,454 km

• M1: 112,946 km (0.097 R)
• M2: 426,204 km (0.058 R)
• M3: 1,856,061 km (0.087 R)
• M4: 2,545,408 km (0.115 R)
• M5: 2,920,300 km (0.114 R)
• M6: 3,816,391 km (0.058 R)
• M7: 5,467,204 km (0.067 R)
• M8: 6,563,906 km (0.113 R)
• M9: 7,299,628 km (0.086 R)
• M10: 9,904,426 km (0.103 R)
• M11: 11,488,668 km (0.101 R)
• M12: 11,824,664 km (0.12 R)
• M13: 12,516,555 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 888.3

Radius: 14.2

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 3.52 AU - 3.54 AU

Year: 4282 Days

Day: 10.9 Hours

Environment

Temp: -207 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 37,497,454 km

• M1: 176,525 km (0.109 R)
• M2: 744,848 km (0.116 R)
• M3: 1,316,461 km (0.105 R)
• M4: 2,348,088 km (0.105 R)
• M5: 2,939,000 km (0.112 R)
• M6: 5,444,615 km (0.066 R)
• M7: 5,936,343 km (0.055 R)
• M8: 6,746,116 km (0.106 R)
• M9: 7,349,145 km (0.06 R)
• M10: 8,134,833 km (0.102 R)
• M11: 10,653,164 km (0.092 R)
• M12: 11,194,857 km (0.075 R)
• M13: 13,084,129 km (0.117 R)
• M14: 14,786,553 km (0.038 R)
• M15: 15,575,981 km (0.102 R)
• M16: 16,039,734 km (0.037 R)
• M17: 16,873,443 km (0.093 R)
• M18: 27,202,129 km (0.091 R)
• M19: 28,474,160 km (0.061 R)
• M20: 29,519,849 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 598.7

Radius: 11.2

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 4.33 AU - 6.07 AU

Year: 7656 Days

Day: 11.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 37,497,454 km

• M1: 139,425 km (0.093 R)
• M2: 1,080,994 km (0.107 R)
• M3: 1,550,432 km (0.112 R)
• M4: 3,810,707 km (0.098 R)
• M5: 4,472,228 km (0.063 R)
• M6: 5,359,194 km (0.073 R)
• M7: 7,790,160 km (0.068 R)
• M8: 8,518,252 km (0.092 R)
• M9: 9,291,225 km (0.033 R)
• M10: 11,633,030 km (0.117 R)
• M11: 12,155,425 km (0.043 R)
• M12: 13,991,141 km (0.09 R)
• M13: 14,582,202 km (0.073 R)
• M14: 17,518,060 km (0.106 R)
• M15: 18,696,293 km (0.111 R)
• M16: 19,196,548 km (0.111 R)
• M17: 22,547,989 km (0.051 R)
• M18: 22,951,904 km (0.111 R)
• M19: 25,131,245 km (0.108 R)
• M20: 26,004,897 km (0.1 R)
• M21: 26,808,537 km (0.091 R)
• M22: 30,385,123 km (0.112 R)
• M23: 31,077,013 km (0.113 R)
• M24: 32,287,409 km (0.087 R)
• M25: 33,215,664 km (0.06 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 196.5

Radius: 6.8

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 7.13 AU - 7.61 AU

Year: 12919 Days

Day: 15.7 Hours

Environment

Temp: -228 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 37,497,454 km

• M1: 93,050 km (0.098 R)
• M2: 388,356 km (0.081 R)
• M3: 923,617 km (0.067 R)
• M4: 1,188,405 km (0.111 R)
• M5: 1,478,625 km (0.11 R)
• M6: 2,073,277 km (0.114 R)
• M7: 3,337,229 km (0.092 R)
• M8: 3,919,464 km (0.089 R)
• M9: 5,047,432 km (0.063 R)
• M10: 6,761,076 km (0.081 R)
• M11: 7,536,292 km (0.077 R)
• M12: 10,077,212 km (0.07 R)
• M13: 10,840,610 km (0.101 R)
• M14: 12,482,147 km (0.119 R)
• M15: 21,245,590 km (0.078 R)
• M16: 25,062,430 km (0.105 R)
• M17: 25,580,338 km (0.049 R)
• M18: 27,999,934 km (0.087 R)
• M19: 29,984,200 km (0.083 R)
• M20: 31,159,142 km (0.107 R)
• M21: 36,386,241 km (0.079 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 276 - 19,510 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit