🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.34

Radius: 1.41

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.53 AU - 0.57 AU

Year: 263 Days

Day: 13.6 Hours

Environment

Temp: -120 °C

Axial Tilt: 23.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 58,045,323 km

• M1: 33,061 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 64.8

Radius: 10.3

Gravity: 0.61 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.88 AU - 1.04 AU

Year: 607 Days

Day: 8.2 Hours

Environment

Temp: -156 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 58,045,323 km

• M1: 128,056 km (0.074 R)
• M2: 558,748 km (0.112 R)
• M3: 1,117,646 km (0.104 R)
• M4: 1,508,695 km (0.066 R)
• M5: 1,977,684 km (0.068 R)
• M6: 2,363,198 km (0.051 R)
• M7: 2,850,438 km (0.075 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 152.9

Radius: 9.8

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.06 AU - 1.12 AU

Year: 735 Days

Day: 14.4 Hours

Environment

Temp: -154 °C

Axial Tilt: 8.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 58,045,323 km

• M1: 121,922 km (0.098 R)
• M2: 485,445 km (0.076 R)
• M3: 809,923 km (0.059 R)
• M4: 1,408,763 km (0.1 R)
• M5: 2,719,240 km (0.061 R)
• M6: 3,190,324 km (0.117 R)
• M7: 4,582,183 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 947.2

Radius: 12.8

Gravity: 5.78 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 0.89 AU - 1.35 AU

Year: 765 Days

Day: 11.2 Hours

Environment

Temp: -167 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 58,045,323 km

• M1: 161,267 km (0.11 R)
• M2: 638,633 km (0.112 R)
• M3: 1,104,930 km (0.078 R)
• M4: 1,691,653 km (0.069 R)
• M5: 2,113,369 km (0.086 R)
• M6: 2,606,145 km (0.047 R)
• M7: 3,096,676 km (0.035 R)
• M8: 3,561,776 km (0.058 R)
• M9: 4,073,700 km (0.078 R)
• M10: 5,024,394 km (0.03 R)
• M11: 6,034,778 km (0.094 R)
• M12: 7,724,785 km (0.093 R)
• M13: 8,482,498 km (0.106 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 882.2

Radius: 8.3

Gravity: 12.81 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.31 AU - 1.43 AU

Year: 1035 Days

Day: 8.9 Hours

Environment

Temp: -166 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 58,045,323 km

• M1: 103,372 km (0.119 R)
• M2: 387,010 km (0.057 R)
• M3: 748,438 km (0.099 R)
• M4: 1,443,919 km (0.088 R)
• M5: 1,968,259 km (0.058 R)
• M6: 2,527,905 km (0.057 R)
• M7: 3,305,515 km (0.106 R)
• M8: 3,995,161 km (0.05 R)
• M9: 4,536,406 km (0.063 R)
• M10: 5,511,036 km (0.071 R)
• M11: 6,159,393 km (0.114 R)
• M12: 7,052,343 km (0.087 R)
• M13: 7,427,684 km (0.116 R)
• M14: 7,789,860 km (0.104 R)
• M15: 8,355,340 km (0.055 R)
• M16: 9,122,329 km (0.103 R)
• M17: 9,507,992 km (0.11 R)
• M18: 10,028,742 km (0.08 R)
• M19: 10,375,660 km (0.098 R)
• M20: 11,396,665 km (0.069 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 422.5

Radius: 10.3

Gravity: 3.98 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 2.13 AU - 2.33 AU

Year: 2150 Days

Day: 5.5 Hours

Environment

Temp: -193 °C

Axial Tilt: 49.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 58,045,323 km

• M1: 128,355 km (0.06 R)
• M2: 950,096 km (0.115 R)
• M3: 1,513,482 km (0.12 R)
• M4: 2,134,014 km (0.025 R)
• M5: 2,945,732 km (0.104 R)
• M6: 3,554,296 km (0.085 R)
• M7: 4,282,389 km (0.116 R)
• M8: 4,834,704 km (0.071 R)
• M9: 6,425,079 km (0.04 R)
• M10: 6,755,092 km (0.106 R)
• M11: 7,366,798 km (0.028 R)
• M12: 7,871,092 km (0.097 R)
• M13: 10,569,688 km (0.085 R)
• M14: 10,959,091 km (0.078 R)
• M15: 11,766,471 km (0.05 R)
• M16: 13,417,433 km (0.113 R)
• M17: 14,513,836 km (0.107 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 976.4

Radius: 12.1

Gravity: 6.67 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 3.44 AU - 4.72 AU

Year: 5321 Days

Day: 14.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 58,045,323 km

• M1: 150,645 km (0.112 R)
• M2: 574,007 km (0.119 R)
• M3: 958,474 km (0.09 R)
• M4: 1,755,381 km (0.104 R)
• M5: 2,708,170 km (0.088 R)
• M6: 3,386,148 km (0.071 R)
• M7: 6,996,992 km (0.084 R)
• M8: 13,536,513 km (0.113 R)
• M9: 16,128,296 km (0.106 R)
• M10: 18,142,332 km (0.089 R)
• M11: 19,598,518 km (0.094 R)
• M12: 26,208,350 km (0.096 R)
• M13: 27,348,735 km (0.08 R)
• M14: 33,654,285 km (0.088 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447.3

Radius: 8.4

Gravity: 6.34 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 4.64 AU - 7.1 AU

Year: 9183 Days

Day: 15 Hours

Environment

Temp: -226 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 58,045,323 km

• M1: 114,742 km (0.106 R)
• M2: 472,580 km (0.095 R)
• M3: 850,314 km (0.12 R)
• M4: 1,437,187 km (0.08 R)
• M5: 2,073,127 km (0.073 R)
• M6: 2,765,616 km (0.088 R)
• M7: 3,968,383 km (0.11 R)
• M8: 5,425,316 km (0.079 R)
• M9: 5,806,791 km (0.051 R)
• M10: 6,070,981 km (0.077 R)
• M11: 6,587,991 km (0.083 R)
• M12: 7,908,791 km (0.117 R)
• M13: 9,902,033 km (0.092 R)
• M14: 17,101,879 km (0.104 R)
• M15: 17,646,415 km (0.089 R)
• M16: 19,131,174 km (0.062 R)
• M17: 19,643,996 km (0.096 R)
• M18: 22,427,713 km (0.103 R)
• M19: 31,418,545 km (0.069 R)
• M20: 35,644,685 km (0.106 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 529.2

Radius: 5

Gravity: 21.17 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 6.49 AU - 9.91 AU

Year: 15161 Days

Day: 21.8 Hours

Environment

Temp: -237 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 58,045,323 km

• M1: 62,233 km (0.073 R)
• M2: 278,102 km (0.117 R)
• M3: 873,801 km (0.062 R)
• M4: 1,034,918 km (0.041 R)
• M5: 1,476,381 km (0.09 R)
• M6: 2,527,007 km (0.114 R)
• M7: 2,744,971 km (0.116 R)
• M8: 3,581,672 km (0.079 R)
• M9: 5,780,013 km (0.067 R)
• M10: 6,595,621 km (0.113 R)
• M11: 7,009,857 km (0.025 R)
• M12: 7,485,429 km (0.105 R)
• M13: 7,798,986 km (0.096 R)
• M14: 7,982,094 km (0.12 R)
• M15: 8,891,499 km (0.063 R)
• M16: 9,141,776 km (0.064 R)
• M17: 10,028,293 km (0.107 R)
• M18: 10,244,911 km (0.054 R)
• M19: 10,575,821 km (0.09 R)
• M20: 11,085,352 km (0.064 R)
• M21: 12,524,035 km (0.053 R)
• M22: 19,276,284 km (0.113 R)
• M23: 19,443,385 km (0.098 R)
• M24: 21,345,522 km (0.108 R)
• M25: 26,636,649 km (0.08 R)
• M26: 29,861,081 km (0.094 R)
• M27: 38,640,532 km (0.083 R)
• M28: 40,117,362 km (0.09 R)
• M29: 40,800,874 km (0.07 R)
• M30: 41,214,662 km (0.098 R)
• M31: 41,770,867 km (0.116 R)
• M32: 54,135,729 km (0.04 R)
• M33: 54,468,585 km (0.104 R)
• M34: 57,179,897 km (0.052 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: 286 - 15,190 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit