🌌 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: 260.4

Radius: 11.6

Gravity: 1.94 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.59 AU - 0.63 AU

Year: 329 Days

Day: 14.3 Hours

Environment

Temp: -143 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 41,145,557 km

• M1: 144,212 km (0.089 R)
• M2: 582,085 km (0.073 R)
• M3: 1,007,542 km (0.12 R)
• M4: 1,480,121 km (0.072 R)
• M5: 1,908,420 km (0.068 R)
• M6: 2,404,038 km (0.061 R)
• M7: 2,912,820 km (0.071 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 716.7

Radius: 13.1

Gravity: 4.18 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.53 AU - 0.81 AU

Year: 379 Days

Day: 8.2 Hours

Environment

Temp: -148 °C

Axial Tilt: 38.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,145,557 km

• M1: 163,810 km (0.105 R)
• M2: 869,014 km (0.034 R)
• M3: 1,295,518 km (0.112 R)
• M4: 1,896,452 km (0.059 R)
• M5: 2,797,480 km (0.105 R)
• M6: 3,217,701 km (0.118 R)
• M7: 3,941,006 km (0.118 R)
• M8: 4,770,227 km (0.118 R)
• M9: 5,328,078 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 806.7

Radius: 11.5

Gravity: 6.1 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.64 AU - 0.76 AU

Year: 404 Days

Day: 6.6 Hours

Environment

Temp: -156 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 41,145,557 km

• M1: 143,016 km (0.087 R)
• M2: 518,207 km (0.064 R)
• M3: 1,121,834 km (0.077 R)
• M4: 1,654,253 km (0.076 R)
• M5: 2,190,861 km (0.109 R)
• M6: 2,568,745 km (0.094 R)
• M7: 3,012,153 km (0.11 R)
• M8: 3,666,494 km (0.107 R)
• M9: 4,135,783 km (0.067 R)
• M10: 4,763,645 km (0.107 R)
• M11: 5,243,405 km (0.086 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 849.4

Radius: 14.1

Gravity: 4.27 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.97 AU - 1.59 AU

Year: 1000 Days

Day: 12.1 Hours

Environment

Temp: -175 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 41,145,557 km

• M1: 175,329 km (0.077 R)
• M2: 688,898 km (0.103 R)
• M3: 1,308,682 km (0.076 R)
• M4: 1,809,685 km (0.102 R)
• M5: 2,383,244 km (0.096 R)
• M6: 3,118,218 km (0.119 R)
• M7: 3,808,463 km (0.104 R)
• M8: 4,249,776 km (0.099 R)
• M9: 5,197,928 km (0.105 R)
• M10: 6,691,812 km (0.115 R)
• M11: 7,538,536 km (0.116 R)
• M12: 8,483,097 km (0.066 R)
• M13: 8,984,250 km (0.107 R)
• M14: 10,575,821 km (0.086 R)
• M15: 11,091,485 km (0.093 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 743.7

Radius: 9.8

Gravity: 7.74 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 1.95 AU - 3.17 AU

Year: 2827 Days

Day: 11 Hours

Environment

Temp: -199 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 41,145,557 km

• M1: 122,072 km (0.118 R)
• M2: 943,963 km (0.076 R)
• M3: 2,135,809 km (0.114 R)
• M4: 2,543,912 km (0.053 R)
• M5: 2,871,681 km (0.111 R)
• M6: 3,847,208 km (0.098 R)
• M7: 4,679,421 km (0.038 R)
• M8: 5,077,950 km (0.034 R)
• M9: 5,550,081 km (0.117 R)
• M10: 6,553,584 km (0.078 R)
• M11: 7,931,978 km (0.087 R)
• M12: 8,431,785 km (0.111 R)
• M13: 9,311,271 km (0.064 R)
• M14: 11,252,453 km (0.104 R)
• M15: 14,697,841 km (0.065 R)
• M16: 16,127,249 km (0.09 R)
• M17: 18,041,653 km (0.066 R)
• M18: 19,738,841 km (0.086 R)
• M19: 20,969,732 km (0.105 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 456.9

Radius: 10.5

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 2.52 AU - 3.78 AU

Year: 3859 Days

Day: 9.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 41,145,557 km

• M1: 130,749 km (0.106 R)
• M2: 531,970 km (0.118 R)
• M3: 960,269 km (0.027 R)
• M4: 1,332,019 km (0.096 R)
• M5: 1,934,600 km (0.095 R)
• M6: 2,972,659 km (0.096 R)
• M7: 3,472,167 km (0.115 R)
• M8: 4,195,921 km (0.076 R)
• M9: 4,526,084 km (0.104 R)
• M10: 4,897,236 km (0.046 R)
• M11: 5,364,580 km (0.075 R)
• M12: 6,917,555 km (0.092 R)
• M13: 8,436,273 km (0.111 R)
• M14: 9,627,969 km (0.117 R)
• M15: 10,166,222 km (0.104 R)
• M16: 11,642,604 km (0.085 R)
• M17: 12,033,054 km (0.115 R)
• M18: 12,840,284 km (0.094 R)
• M19: 15,067,049 km (0.037 R)
• M20: 17,996,025 km (0.066 R)
• M21: 19,111,128 km (0.116 R)
• M22: 20,271,559 km (0.068 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 89.7

Radius: 14.7

Gravity: 0.42 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 2.97 AU - 4.61 AU

Year: 5093 Days

Day: 13.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 41,145,557 km

• M1: 182,809 km (0.038 R)
• M2: 807,230 km (0.107 R)
• M3: 1,327,532 km (0.069 R)
• M4: 3,786,023 km (0.093 R)
• M5: 4,900,677 km (0.083 R)
• M6: 5,489,793 km (0.076 R)
• M7: 7,104,702 km (0.049 R)
• M8: 9,049,624 km (0.07 R)
• M9: 10,744,119 km (0.093 R)
• M10: 11,217,447 km (0.063 R)
• M11: 12,128,199 km (0.051 R)
• M12: 14,357,506 km (0.096 R)
• M13: 15,022,469 km (0.064 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 41.4

Radius: 11.1

Gravity: 0.34 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 3.18 AU - 5.22 AU

Year: 5941 Days

Day: 13.1 Hours

Environment

Temp: -220 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 41,145,557 km

• M1: 138,079 km (0.101 R)
• M2: 557,102 km (0.047 R)
• M3: 906,563 km (0.075 R)
• M4: 1,258,716 km (0.07 R)
• M5: 2,303,059 km (0.103 R)
• M6: 4,006,979 km (0.113 R)
• M7: 8,104,016 km (0.084 R)
• M8: 9,350,316 km (0.077 R)
• M9: 11,030,449 km (0.114 R)
• M10: 12,294,402 km (0.037 R)

Planet 9 - Ice Giant

Semi-Major Axis: 5.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 438.3

Radius: 7

Gravity: 8.94 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 5.17 AU - 6.67 AU

Year: 9942 Days

Day: 19.9 Hours

Environment

Temp: -234 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 41,145,557 km

• M1: 87,066 km (0.093 R)
• M2: 338,690 km (0.102 R)
• M3: 705,803 km (0.053 R)
• M4: 1,151,904 km (0.103 R)
• M5: 1,603,240 km (0.102 R)
• M6: 2,166,776 km (0.04 R)
• M7: 2,411,966 km (0.064 R)
• M8: 2,896,215 km (0.118 R)
• M9: 3,705,240 km (0.113 R)
• M10: 6,480,729 km (0.083 R)
• M11: 7,259,087 km (0.086 R)
• M12: 8,391,693 km (0.071 R)
• M13: 9,360,788 km (0.108 R)
• M14: 11,572,143 km (0.095 R)
• M15: 13,633,901 km (0.055 R)
• M16: 14,351,971 km (0.101 R)
• M17: 15,095,024 km (0.067 R)
• M18: 15,798,433 km (0.117 R)
• M19: 17,687,255 km (0.111 R)
• M20: 18,181,976 km (0.112 R)
• M21: 20,407,394 km (0.076 R)
• M22: 22,150,508 km (0.09 R)
• M23: 23,648,731 km (0.064 R)
• M24: 23,904,842 km (0.098 R)
• M25: 28,067,253 km (0.083 R)
• M26: 29,720,310 km (0.072 R)
• M27: 31,334,620 km (0.118 R)
• M28: 32,900,162 km (0.091 R)
• M29: 39,086,932 km (0.079 R)
• M30: 39,926,026 km (0.114 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: 318 - 15,982 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit