🌌 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: 501.1

Radius: 10.1

Gravity: 4.91 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.53 AU - 0.71 AU

Year: 326 Days

Day: 12.5 Hours

Environment

Temp: -142 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 31,655,717 km

• M1: 125,662 km (0.108 R)
• M2: 440,267 km (0.07 R)
• M3: 788,082 km (0.113 R)
• M4: 1,110,914 km (0.085 R)
• M5: 1,512,584 km (0.052 R)
• M6: 1,887,327 km (0.028 R)
• M7: 2,210,757 km (0.113 R)
• M8: 2,679,298 km (0.099 R)
• M9: 3,070,795 km (0.064 R)
• M10: 3,500,291 km (0.083 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 646.1

Radius: 11

Gravity: 5.34 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 0.72 AU - 1.02 AU

Year: 541 Days

Day: 9 Hours

Environment

Temp: -174 °C

Axial Tilt: 1.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 31,655,717 km

• M1: 136,732 km (0.046 R)
• M2: 555,307 km (0.105 R)
• M3: 1,106,575 km (0.096 R)
• M4: 1,768,546 km (0.094 R)
• M5: 2,145,084 km (0.075 R)
• M6: 2,763,521 km (0.061 R)
• M7: 3,510,015 km (0.074 R)
• M8: 4,027,923 km (0.084 R)
• M9: 4,611,354 km (0.04 R)
• M10: 5,134,498 km (0.105 R)
• M11: 5,803,500 km (0.116 R)
• M12: 6,149,968 km (0.063 R)
• M13: 6,626,886 km (0.07 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 354

Radius: 10.1

Gravity: 3.47 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 0.98 AU - 1.62 AU

Year: 988 Days

Day: 7.5 Hours

Environment

Temp: -182 °C

Axial Tilt: 10.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 31,655,717 km

• M1: 127,457 km (0.071 R)
• M2: 449,542 km (0.036 R)
• M3: 829,520 km (0.056 R)
• M4: 1,199,775 km (0.116 R)
• M5: 1,713,644 km (0.098 R)
• M6: 2,349,435 km (0.028 R)
• M7: 2,975,053 km (0.106 R)
• M8: 3,314,640 km (0.115 R)
• M9: 3,736,656 km (0.118 R)
• M10: 4,302,734 km (0.118 R)
• M11: 4,722,206 km (0.11 R)
• M12: 5,643,729 km (0.114 R)
• M13: 6,087,885 km (0.109 R)
• M14: 6,959,143 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 804.6

Radius: 8.9

Gravity: 10.16 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 1.32 AU - 1.36 AU

Year: 1034 Days

Day: 8.1 Hours

Environment

Temp: -190 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 31,655,717 km

• M1: 110,702 km (0.073 R)
• M2: 433,086 km (0.12 R)
• M3: 740,360 km (0.112 R)
• M4: 1,057,059 km (0.117 R)
• M5: 1,506,451 km (0.11 R)
• M6: 2,007,155 km (0.051 R)
• M7: 2,765,915 km (0.102 R)
• M8: 3,782,881 km (0.106 R)
• M9: 4,194,724 km (0.059 R)
• M10: 4,491,826 km (0.074 R)
• M11: 4,954,233 km (0.108 R)
• M12: 6,194,249 km (0.081 R)
• M13: 6,839,016 km (0.026 R)
• M14: 8,127,503 km (0.096 R)
• M15: 10,180,733 km (0.09 R)
• M16: 10,816,674 km (0.052 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 690.9

Radius: 10.8

Gravity: 5.92 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 1.99 AU - 2.05 AU

Year: 1915 Days

Day: 12.6 Hours

Environment

Temp: -204 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 31,655,717 km

• M1: 134,339 km (0.107 R)
• M2: 489,335 km (0.111 R)
• M3: 1,051,972 km (0.06 R)
• M4: 1,473,838 km (0.109 R)
• M5: 1,841,999 km (0.083 R)
• M6: 2,234,693 km (0.054 R)
• M7: 3,320,474 km (0.11 R)
• M8: 4,543,138 km (0.107 R)
• M9: 5,777,320 km (0.111 R)
• M10: 6,421,189 km (0.105 R)
• M11: 8,210,679 km (0.075 R)
• M12: 9,187,703 km (0.118 R)
• M13: 11,183,937 km (0.059 R)
• M14: 11,561,971 km (0.101 R)
• M15: 12,144,804 km (0.03 R)
• M16: 12,584,622 km (0.074 R)
• M17: 15,825,809 km (0.055 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 350.3

Radius: 12.8

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 3.6 AU - 5.04 AU

Year: 5988 Days

Day: 8 Hours

Environment

Temp: -215 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 31,655,717 km

• M1: 159,322 km (0.06 R)
• M2: 618,737 km (0.065 R)
• M3: 1,158,785 km (0.083 R)
• M4: 1,656,348 km (0.097 R)
• M5: 2,659,102 km (0.117 R)
• M6: 3,462,443 km (0.115 R)
• M7: 4,212,377 km (0.075 R)
• M8: 7,058,028 km (0.104 R)
• M9: 7,801,379 km (0.043 R)
• M10: 8,301,186 km (0.109 R)
• M11: 8,975,274 km (0.115 R)
• M12: 9,685,415 km (0.107 R)
• M13: 11,173,615 km (0.111 R)
• M14: 11,995,954 km (0.057 R)
• M15: 17,138,830 km (0.119 R)
• M16: 18,170,756 km (0.11 R)
• M17: 20,358,176 km (0.077 R)
• M18: 22,287,240 km (0.115 R)
• M19: 23,516,187 km (0.034 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 78.1

Radius: 12

Gravity: 0.54 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 4.67 AU - 6.21 AU

Year: 8461 Days

Day: 14.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 31,655,717 km

• M1: 149,299 km (0.118 R)
• M2: 871,108 km (0.094 R)
• M3: 1,520,513 km (0.095 R)
• M4: 2,460,885 km (0.115 R)
• M5: 4,630,503 km (0.083 R)
• M6: 5,510,138 km (0.1 R)
• M7: 6,842,607 km (0.071 R)
• M8: 8,312,555 km (0.087 R)
• M9: 9,068,773 km (0.08 R)
• M10: 9,647,118 km (0.11 R)
• M11: 11,160,600 km (0.096 R)
• M12: 11,867,599 km (0.12 R)
• M13: 13,371,357 km (0.12 R)
• M14: 19,817,380 km (0.043 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.17 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 188.9

Radius: 4.5

Gravity: 9.33 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 4.71 AU - 7.63 AU

Year: 10220 Days

Day: 23.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 31,655,717 km

• M1: 55,950 km (0.026 R)
• M2: 561,590 km (0.119 R)
• M3: 1,006,494 km (0.093 R)
• M4: 1,191,547 km (0.099 R)
• M5: 1,399,189 km (0.113 R)
• M6: 2,124,140 km (0.114 R)
• M7: 2,568,296 km (0.067 R)
• M8: 3,032,498 km (0.102 R)
• M9: 3,315,837 km (0.075 R)
• M10: 3,550,705 km (0.046 R)
• M11: 4,550,618 km (0.116 R)
• M12: 5,199,424 km (0.051 R)
• M13: 5,487,250 km (0.115 R)
• M14: 5,665,122 km (0.035 R)
• M15: 6,063,351 km (0.051 R)
• M16: 6,317,668 km (0.12 R)
• M17: 7,018,982 km (0.09 R)
• M18: 7,228,569 km (0.113 R)
• M19: 7,623,507 km (0.077 R)
• M20: 8,185,247 km (0.092 R)
• M21: 11,081,612 km (0.044 R)
• M22: 11,461,740 km (0.079 R)
• M23: 11,998,497 km (0.066 R)
• M24: 13,174,935 km (0.065 R)
• M25: 14,708,313 km (0.084 R)
• M26: 16,849,358 km (0.098 R)
• M27: 17,162,317 km (0.089 R)
• M28: 17,929,006 km (0.068 R)
• M29: 19,054,131 km (0.109 R)
• M30: 20,155,172 km (0.039 R)
• M31: 20,436,864 km (0.115 R)
• M32: 26,302,148 km (0.068 R)
• M33: 30,071,416 km (0.07 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 232 - 13,653 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit