🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 583.5

Radius: 9.5

Gravity: 6.47 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 0.55 AU - 0.69 AU

Year: 326 Days

Day: 7.1 Hours

Environment

Temp: -158 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 72,742,353 km

• M1: 118,182 km (0.117 R)
• M2: 438,471 km (0.117 R)
• M3: 760,256 km (0.049 R)
• M4: 1,137,841 km (0.05 R)
• M5: 2,092,126 km (0.11 R)
• M6: 2,544,061 km (0.045 R)
• M7: 2,910,277 km (0.073 R)
• M8: 3,236,849 km (0.062 R)
• M9: 3,679,509 km (0.076 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 792.2

Radius: 10.7

Gravity: 6.92 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 0.88 AU - 0.9 AU

Year: 560 Days

Day: 10.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 72,742,353 km

• M1: 133,142 km (0.092 R)
• M2: 533,017 km (0.105 R)
• M3: 1,209,499 km (0.078 R)
• M4: 1,694,794 km (0.116 R)
• M5: 2,721,036 km (0.046 R)
• M6: 3,485,780 km (0.095 R)
• M7: 4,119,776 km (0.109 R)
• M8: 4,732,080 km (0.052 R)
• M9: 5,563,844 km (0.072 R)
• M10: 6,234,940 km (0.111 R)
• M11: 6,691,513 km (0.073 R)
• M12: 7,320,273 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 151.5

Radius: 12.5

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 1.39 AU - 1.59 AU

Year: 1213 Days

Day: 14.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,742,353 km

• M1: 159,920 km (0.12 R)
• M2: 623,823 km (0.118 R)
• M3: 1,066,184 km (0.104 R)
• M4: 1,618,799 km (0.111 R)
• M5: 2,072,080 km (0.103 R)
• M6: 2,737,641 km (0.078 R)
• M7: 3,290,106 km (0.069 R)
• M8: 3,712,421 km (0.111 R)
• M9: 4,922,069 km (0.074 R)
• M10: 5,834,018 km (0.04 R)
• M11: 6,225,216 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 269.8

Radius: 8

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 1.58 AU - 1.62 AU

Year: 1350 Days

Day: 10.2 Hours

Environment

Temp: -194 °C

Axial Tilt: 175.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 72,742,353 km

• M1: 105,915 km (0.037 R)
• M2: 428,149 km (0.119 R)
• M3: 796,609 km (0.116 R)
• M4: 2,268,502 km (0.107 R)
• M5: 3,290,405 km (0.112 R)
• M6: 4,035,253 km (0.083 R)
• M7: 4,995,671 km (0.068 R)
• M8: 5,328,527 km (0.096 R)
• M9: 6,568,244 km (0.084 R)
• M10: 6,855,622 km (0.089 R)
• M11: 8,575,698 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 928.4

Radius: 11.8

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 1.66 AU - 1.74 AU

Year: 1478 Days

Day: 8.3 Hours

Environment

Temp: -196 °C

Axial Tilt: 12.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 72,742,353 km

• M1: 147,354 km (0.089 R)
• M2: 547,079 km (0.114 R)
• M3: 933,491 km (0.1 R)
• M4: 1,330,523 km (0.082 R)
• M5: 2,060,262 km (0.119 R)
• M6: 2,458,641 km (0.051 R)
• M7: 3,071,095 km (0.08 R)
• M8: 3,463,041 km (0.063 R)
• M9: 4,348,661 km (0.061 R)
• M10: 4,824,681 km (0.115 R)
• M11: 5,581,347 km (0.102 R)
• M12: 10,118,351 km (0.054 R)
• M13: 12,225,288 km (0.073 R)
• M14: 14,221,073 km (0.118 R)
• M15: 14,610,027 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 236.3

Radius: 13.9

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 1.72 AU - 2.42 AU

Year: 1986 Days

Day: 7.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 72,742,353 km

• M1: 178,470 km (0.035 R)
• M2: 677,080 km (0.118 R)
• M3: 1,298,809 km (0.08 R)
• M4: 3,239,542 km (0.034 R)
• M5: 5,459,724 km (0.114 R)
• M6: 6,972,906 km (0.091 R)
• M7: 8,637,931 km (0.106 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 858.5

Radius: 12.6

Gravity: 5.41 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 2.43 AU - 3.25 AU

Year: 3192 Days

Day: 6.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 72,742,353 km

• M1: 156,779 km (0.071 R)
• M2: 623,374 km (0.079 R)
• M3: 1,066,334 km (0.101 R)
• M4: 1,557,314 km (0.069 R)
• M5: 2,157,800 km (0.061 R)
• M6: 3,100,416 km (0.084 R)
• M7: 3,528,266 km (0.07 R)
• M8: 4,300,490 km (0.033 R)
• M9: 4,786,982 km (0.089 R)
• M10: 5,233,233 km (0.079 R)
• M11: 5,734,386 km (0.099 R)
• M12: 6,354,618 km (0.111 R)
• M13: 7,081,814 km (0.092 R)
• M14: 8,630,600 km (0.117 R)
• M15: 16,665,203 km (0.089 R)
• M16: 18,950,609 km (0.052 R)
• M17: 20,200,500 km (0.043 R)
• M18: 23,212,354 km (0.044 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 48.5

Radius: 9.3

Gravity: 0.56 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 2.99 AU - 3.87 AU

Year: 4236 Days

Day: 10.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 72,742,353 km

• M1: 115,938 km (0.028 R)
• M2: 662,868 km (0.1 R)
• M3: 1,708,258 km (0.108 R)
• M4: 2,354,521 km (0.108 R)
• M5: 3,298,035 km (0.113 R)
• M6: 8,457,067 km (0.099 R)
• M7: 9,878,396 km (0.094 R)
• M8: 10,187,017 km (0.101 R)
• M9: 10,661,990 km (0.078 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 443.2

Radius: 5.3

Gravity: 15.78 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 9.8 AU - 11.54 AU

Year: 23242 Days

Day: 16.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 72,742,353 km

• M1: 72,555 km (0.103 R)
• M2: 269,575 km (0.109 R)
• M3: 564,433 km (0.116 R)
• M4: 927,357 km (0.059 R)
• M5: 1,147,864 km (0.115 R)
• M6: 1,894,059 km (0.106 R)
• M7: 2,107,684 km (0.03 R)
• M8: 2,469,711 km (0.112 R)
• M9: 2,973,108 km (0.044 R)
• M10: 3,542,178 km (0.069 R)
• M11: 3,898,521 km (0.083 R)
• M12: 4,682,413 km (0.04 R)
• M13: 5,185,661 km (0.08 R)
• M14: 5,566,537 km (0.071 R)
• M15: 8,934,134 km (0.102 R)
• M16: 9,649,960 km (0.112 R)
• M17: 9,992,839 km (0.085 R)
• M18: 13,104,474 km (0.106 R)
• M19: 15,144,391 km (0.114 R)
• M20: 18,850,977 km (0.073 R)
• M21: 20,960,158 km (0.063 R)
• M22: 25,967,797 km (0.112 R)
• M23: 31,592,826 km (0.116 R)
• M24: 35,222,220 km (0.102 R)
• M25: 37,136,923 km (0.112 R)
• M26: 40,726,674 km (0.054 R)
• M27: 41,922,410 km (0.118 R)
• M28: 42,987,846 km (0.073 R)
• M29: 49,931,281 km (0.072 R)
• M30: 51,646,720 km (0.049 R)
• M31: 52,168,966 km (0.09 R)
• M32: 56,106,382 km (0.06 R)
• M33: 62,969,035 km (0.095 R)
• M34: 67,842,186 km (0.061 R)
• M35: 69,309,441 km (0.073 R)
• M36: 69,732,504 km (0.111 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 410 - 20,203 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit