🌌 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 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.58

Radius: 0.8

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.211

Orbit Range: 0.48 AU - 0.74 AU

Year: 303 Days

Day: 38.1 Hours

Environment

Temp: -127 °C

Axial Tilt: 25.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 38.5

Radius: 13.7

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.64 AU - 0.78 AU

Year: 380 Days

Day: 9.5 Hours

Environment

Temp: -129 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 52,154,778 km

• M1: 170,392 km (0.106 R)
• M2: 622,477 km (0.068 R)
• M3: 1,260,362 km (0.069 R)
• M4: 1,953,599 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 197.8

Radius: 8.9

Gravity: 2.5 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 1.44 AU - 2 AU

Year: 1434 Days

Day: 10.4 Hours

Environment

Temp: -184 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 52,154,778 km

• M1: 114,442 km (0.059 R)
• M2: 646,861 km (0.077 R)
• M3: 2,084,796 km (0.114 R)
• M4: 2,585,799 km (0.084 R)
• M5: 3,100,865 km (0.116 R)
• M6: 4,853,254 km (0.067 R)
• M7: 7,251,607 km (0.037 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 948.2

Radius: 8.9

Gravity: 11.97 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 2.57 AU - 3.21 AU

Year: 3124 Days

Day: 10 Hours

Environment

Temp: -199 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 52,154,778 km

• M1: 110,702 km (0.101 R)
• M2: 397,033 km (0.073 R)
• M3: 707,748 km (0.052 R)
• M4: 1,371,064 km (0.068 R)
• M5: 1,761,365 km (0.105 R)
• M6: 2,070,883 km (0.101 R)
• M7: 2,818,274 km (0.105 R)
• M8: 3,513,605 km (0.098 R)
• M9: 3,901,961 km (0.113 R)
• M10: 4,740,906 km (0.052 R)
• M11: 7,053,839 km (0.041 R)
• M12: 12,598,983 km (0.117 R)
• M13: 13,121,977 km (0.114 R)
• M14: 15,093,228 km (0.095 R)
• M15: 15,956,408 km (0.103 R)
• M16: 17,370,407 km (0.09 R)
• M17: 18,682,231 km (0.04 R)
• M18: 20,772,113 km (0.107 R)
• M19: 23,153,861 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 169.5

Radius: 8.4

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 2.62 AU - 4.12 AU

Year: 3933 Days

Day: 13 Hours

Environment

Temp: -215 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 52,154,778 km

• M1: 104,719 km (0.094 R)
• M2: 399,726 km (0.074 R)
• M3: 904,319 km (0.047 R)
• M4: 1,293,573 km (0.069 R)
• M5: 1,596,508 km (0.115 R)
• M6: 2,258,778 km (0.077 R)
• M7: 3,400,958 km (0.105 R)
• M8: 3,892,836 km (0.116 R)
• M9: 4,175,576 km (0.102 R)
• M10: 5,084,832 km (0.12 R)
• M11: 5,446,410 km (0.089 R)
• M12: 5,728,701 km (0.118 R)
• M13: 6,095,365 km (0.115 R)
• M14: 8,986,793 km (0.09 R)
• M15: 11,381,556 km (0.115 R)
• M16: 11,650,084 km (0.057 R)
• M17: 11,962,145 km (0.076 R)
• M18: 13,015,015 km (0.096 R)
• M19: 13,779,161 km (0.105 R)
• M20: 15,350,387 km (0.058 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 888.9

Radius: 11.5

Gravity: 6.72 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 3.17 AU - 4.31 AU

Year: 4599 Days

Day: 5.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 52,154,778 km

• M1: 153,188 km (0.088 R)
• M2: 545,434 km (0.115 R)
• M3: 907,012 km (0.078 R)
• M4: 1,416,243 km (0.053 R)
• M5: 1,830,928 km (0.102 R)
• M6: 2,375,165 km (0.079 R)
• M7: 3,141,406 km (0.088 R)
• M8: 4,864,474 km (0.097 R)
• M9: 5,646,721 km (0.038 R)
• M10: 6,130,371 km (0.067 R)
• M11: 7,568,455 km (0.037 R)
• M12: 8,082,175 km (0.117 R)
• M13: 8,618,932 km (0.03 R)
• M14: 9,343,883 km (0.056 R)
• M15: 10,915,558 km (0.113 R)
• M16: 12,912,391 km (0.115 R)
• M17: 15,084,701 km (0.073 R)
• M18: 15,546,660 km (0.102 R)
• M19: 16,621,071 km (0.057 R)
• M20: 17,051,913 km (0.104 R)
• M21: 18,064,990 km (0.104 R)
• M22: 20,002,582 km (0.101 R)
• M23: 20,843,621 km (0.103 R)
• M24: 24,287,214 km (0.101 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 658.7

Radius: 7.6

Gravity: 11.4 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 6.38 AU - 7.46 AU

Year: 11574 Days

Day: 17.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 52,154,778 km

• M1: 94,546 km (0.06 R)
• M2: 341,382 km (0.109 R)
• M3: 1,052,421 km (0.091 R)
• M4: 1,377,348 km (0.097 R)
• M5: 2,195,349 km (0.083 R)
• M6: 3,708,830 km (0.085 R)
• M7: 4,934,037 km (0.116 R)
• M8: 5,744,708 km (0.099 R)
• M9: 6,070,532 km (0.09 R)
• M10: 6,485,666 km (0.104 R)
• M11: 7,000,432 km (0.114 R)
• M12: 7,801,230 km (0.089 R)
• M13: 8,292,060 km (0.078 R)
• M14: 9,090,913 km (0.049 R)
• M15: 9,888,718 km (0.111 R)
• M16: 10,304,750 km (0.083 R)
• M17: 10,841,058 km (0.087 R)
• M18: 11,283,419 km (0.113 R)
• M19: 11,565,860 km (0.094 R)
• M20: 13,236,420 km (0.105 R)
• M21: 15,752,357 km (0.104 R)
• M22: 16,248,274 km (0.096 R)
• M23: 16,536,249 km (0.116 R)
• M24: 17,345,873 km (0.036 R)
• M25: 20,098,175 km (0.113 R)
• M26: 24,990,324 km (0.114 R)
• M27: 25,374,342 km (0.084 R)
• M28: 25,957,624 km (0.036 R)
• M29: 27,151,266 km (0.085 R)
• M30: 27,556,975 km (0.057 R)
• M31: 28,173,318 km (0.106 R)
• M32: 29,115,037 km (0.057 R)
• M33: 34,613,357 km (0.101 R)
• M34: 39,845,243 km (0.086 R)
• M35: 44,729,614 km (0.091 R)
• M36: 50,455,622 km (0.085 R)
• M37: 51,998,724 km (0.109 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 422 - 17,034 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit