🌌 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: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 382.8

Radius: 10.3

Gravity: 3.61 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.47 AU - 0.75 AU

Year: 323 Days

Day: 11.2 Hours

Environment

Temp: -146 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 52,480,232 km

• M1: 128,056 km (0.08 R)
• M2: 648,507 km (0.085 R)
• M3: 1,008,140 km (0.081 R)
• M4: 1,463,666 km (0.048 R)
• M5: 1,843,644 km (0.104 R)
• M6: 2,204,025 km (0.107 R)
• M7: 2,725,673 km (0.105 R)
• M8: 3,186,883 km (0.057 R)
• M9: 3,788,566 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.8

Radius: 10

Gravity: 2.68 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 2.63 AU - 3.27 AU

Year: 3437 Days

Day: 14 Hours

Environment

Temp: -212 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 52,480,232 km

• M1: 124,465 km (0.109 R)
• M2: 495,169 km (0.108 R)
• M3: 1,113,906 km (0.077 R)
• M4: 1,434,793 km (0.094 R)
• M5: 3,886,104 km (0.103 R)
• M6: 6,286,252 km (0.07 R)
• M7: 6,656,806 km (0.084 R)
• M8: 8,101,622 km (0.109 R)
• M9: 13,855,904 km (0.103 R)
• M10: 14,900,098 km (0.092 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 503.4

Radius: 8.3

Gravity: 7.31 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 2.74 AU - 4.14 AU

Year: 4327 Days

Day: 12.2 Hours

Environment

Temp: -225 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 52,480,232 km

• M1: 103,522 km (0.066 R)
• M2: 448,195 km (0.097 R)
• M3: 1,004,998 km (0.067 R)
• M4: 2,549,148 km (0.113 R)
• M5: 2,862,854 km (0.061 R)
• M6: 3,128,540 km (0.113 R)
• M7: 4,667,154 km (0.103 R)
• M8: 5,294,418 km (0.107 R)
• M9: 5,724,512 km (0.069 R)
• M10: 6,353,870 km (0.086 R)
• M11: 7,449,076 km (0.044 R)
• M12: 9,378,440 km (0.086 R)
• M13: 9,928,511 km (0.03 R)
• M14: 11,179,598 km (0.115 R)
• M15: 11,933,572 km (0.097 R)
• M16: 13,444,061 km (0.108 R)
• M17: 13,991,590 km (0.028 R)
• M18: 14,347,633 km (0.115 R)
• M19: 14,709,809 km (0.061 R)
• M20: 16,387,400 km (0.114 R)
• M21: 17,301,443 km (0.073 R)
• M22: 22,111,762 km (0.104 R)
• M23: 23,015,184 km (0.105 R)
• M24: 24,087,800 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 616.6

Radius: 9.9

Gravity: 6.29 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 4.94 AU - 6.22 AU

Year: 8940 Days

Day: 14.3 Hours

Environment

Temp: -230 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 52,480,232 km

• M1: 124,017 km (0.099 R)
• M2: 465,698 km (0.115 R)
• M3: 1,566,290 km (0.03 R)
• M4: 2,121,298 km (0.075 R)
• M5: 2,926,134 km (0.088 R)
• M6: 3,821,328 km (0.101 R)
• M7: 4,569,617 km (0.112 R)
• M8: 5,192,542 km (0.038 R)
• M9: 5,638,793 km (0.114 R)
• M10: 6,535,333 km (0.117 R)
• M11: 7,725,084 km (0.096 R)
• M12: 8,222,497 km (0.105 R)
• M13: 8,609,507 km (0.117 R)
• M14: 10,182,529 km (0.036 R)
• M15: 12,831,757 km (0.108 R)
• M16: 14,070,278 km (0.1 R)
• M17: 14,624,837 km (0.089 R)
• M18: 15,843,312 km (0.11 R)
• M19: 16,511,267 km (0.112 R)
• M20: 18,335,762 km (0.099 R)
• M21: 19,981,488 km (0.088 R)
• M22: 23,823,162 km (0.115 R)
• M23: 25,688,647 km (0.114 R)
• M24: 28,227,772 km (0.095 R)
• M25: 31,552,734 km (0.093 R)
• M26: 32,396,466 km (0.1 R)
• M27: 34,018,855 km (0.037 R)
• M28: 38,251,128 km (0.073 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.84 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 816.5

Radius: 7.8

Gravity: 13.42 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 4.76 AU - 6.92 AU

Year: 9572 Days

Day: 21.8 Hours

Environment

Temp: -231 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 52,480,232 km

• M1: 97,089 km (0.051 R)
• M2: 628,760 km (0.114 R)
• M3: 1,088,474 km (0.052 R)
• M4: 1,413,849 km (0.093 R)
• M5: 1,835,416 km (0.109 R)
• M6: 2,137,604 km (0.057 R)
• M7: 2,592,382 km (0.097 R)
• M8: 4,556,452 km (0.119 R)
• M9: 6,329,336 km (0.093 R)
• M10: 6,748,061 km (0.071 R)
• M11: 7,725,982 km (0.058 R)
• M12: 8,383,315 km (0.086 R)
• M13: 9,268,635 km (0.12 R)
• M14: 11,060,818 km (0.11 R)
• M15: 11,500,785 km (0.099 R)
• M16: 18,638,848 km (0.067 R)
• M17: 19,899,060 km (0.112 R)
• M18: 22,500,717 km (0.066 R)
• M19: 27,659,749 km (0.098 R)
• M20: 29,401,218 km (0.071 R)
• M21: 33,555,550 km (0.103 R)
• M22: 34,710,596 km (0.08 R)
• M23: 36,371,730 km (0.071 R)
• M24: 38,459,369 km (0.084 R)
• M25: 44,230,854 km (0.066 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 114.7

Radius: 7

Gravity: 2.34 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 6.12 AU - 9.28 AU

Year: 14492 Days

Day: 20.6 Hours

Environment

Temp: -239 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 52,480,232 km

• M1: 87,216 km (0.118 R)
• M2: 461,210 km (0.094 R)
• M3: 1,082,640 km (0.083 R)
• M4: 1,413,401 km (0.034 R)
• M5: 4,106,013 km (0.109 R)
• M6: 4,642,920 km (0.079 R)
• M7: 6,109,128 km (0.086 R)
• M8: 6,369,578 km (0.118 R)
• M9: 9,526,692 km (0.077 R)
• M10: 11,318,126 km (0.071 R)
• M11: 13,214,878 km (0.116 R)
• M12: 18,021,158 km (0.109 R)
• M13: 23,084,148 km (0.069 R)
• M14: 26,108,568 km (0.106 R)
• M15: 26,969,205 km (0.102 R)
• M16: 31,946,027 km (0.105 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 272.6

Radius: 7.9

Gravity: 4.37 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 8.59 AU - 9.31 AU

Year: 18160 Days

Day: 24.2 Hours

Environment

Temp: -233 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 52,480,232 km

• M1: 98,435 km (0.107 R)
• M2: 408,851 km (0.116 R)
• M3: 2,521,921 km (0.055 R)
• M4: 3,253,604 km (0.113 R)
• M5: 4,006,979 km (0.114 R)
• M6: 5,297,261 km (0.077 R)
• M7: 11,021,324 km (0.096 R)
• M8: 15,712,115 km (0.044 R)
• M9: 15,994,256 km (0.064 R)
• M10: 19,406,285 km (0.101 R)
• M11: 20,392,135 km (0.077 R)
• M12: 24,292,899 km (0.105 R)
• M13: 33,649,049 km (0.11 R)
• M14: 36,407,035 km (0.091 R)
• M15: 40,225,970 km (0.072 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 343 - 17,596 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit