🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.67

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.44 AU - 0.58 AU

Year: 232 Days

Day: 25.1 Hours

Environment

Temp: -114 °C

Axial Tilt: 1.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 62,920,495 km

• M1: 66,721 km (0.111 R)
• M2: 600,336 km (0.075 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 431.9

Radius: 9.1

Gravity: 5.22 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 0.67 AU - 1.07 AU

Year: 516 Days

Day: 14.8 Hours

Environment

Temp: -141 °C

Axial Tilt: 138.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 62,920,495 km

• M1: 113,694 km (0.119 R)
• M2: 429,346 km (0.09 R)
• M3: 819,497 km (0.086 R)
• M4: 1,740,272 km (0.114 R)
• M5: 2,028,248 km (0.116 R)
• M6: 3,317,183 km (0.048 R)
• M7: 3,676,816 km (0.118 R)
• M8: 4,237,958 km (0.099 R)
• M9: 5,400,334 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 756.8

Radius: 11.4

Gravity: 5.82 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.84 AU - 1.26 AU

Year: 684 Days

Day: 7.3 Hours

Environment

Temp: -151 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 62,920,495 km

• M1: 143,165 km (0.071 R)
• M2: 745,297 km (0.083 R)
• M3: 1,141,881 km (0.083 R)
• M4: 1,572,423 km (0.069 R)
• M5: 2,317,720 km (0.091 R)
• M6: 2,725,972 km (0.113 R)
• M7: 3,082,315 km (0.12 R)
• M8: 3,496,850 km (0.118 R)
• M9: 4,007,877 km (0.089 R)
• M10: 4,439,317 km (0.07 R)
• M11: 5,731,394 km (0.071 R)
• M12: 6,280,867 km (0.111 R)
• M13: 7,349,444 km (0.096 R)
• M14: 7,809,458 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 656.3

Radius: 9.8

Gravity: 6.83 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.35 AU - 1.35 AU

Year: 997 Days

Day: 7.1 Hours

Environment

Temp: -183 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 62,920,495 km

• M1: 122,221 km (0.03 R)
• M2: 622,178 km (0.042 R)
• M3: 1,124,826 km (0.045 R)
• M4: 1,501,364 km (0.087 R)
• M5: 1,971,550 km (0.088 R)
• M6: 3,405,895 km (0.117 R)
• M7: 4,391,595 km (0.091 R)
• M8: 4,705,601 km (0.099 R)
• M9: 5,128,813 km (0.036 R)
• M10: 6,244,514 km (0.09 R)
• M11: 6,825,104 km (0.075 R)
• M12: 8,042,681 km (0.043 R)
• M13: 8,784,836 km (0.105 R)
• M14: 10,162,333 km (0.078 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 958.4

Radius: 12.6

Gravity: 6.04 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 2.18 AU - 2.58 AU

Year: 2335 Days

Day: 11.2 Hours

Environment

Temp: -203 °C

Axial Tilt: 31.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 62,920,495 km

• M1: 156,629 km (0.064 R)
• M2: 571,613 km (0.096 R)
• M3: 999,463 km (0.107 R)
• M4: 1,672,504 km (0.093 R)
• M5: 2,145,682 km (0.036 R)
• M6: 2,617,813 km (0.11 R)
• M7: 3,891,938 km (0.043 R)
• M8: 4,341,330 km (0.091 R)
• M9: 5,175,937 km (0.076 R)
• M10: 5,695,640 km (0.085 R)
• M11: 6,696,449 km (0.073 R)
• M12: 7,375,474 km (0.105 R)
• M13: 8,768,081 km (0.115 R)
• M14: 10,329,284 km (0.106 R)
• M15: 11,731,016 km (0.117 R)
• M16: 14,471,500 km (0.112 R)
• M17: 16,696,020 km (0.094 R)
• M18: 18,337,857 km (0.093 R)
• M19: 20,205,137 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 658.7

Radius: 9.9

Gravity: 6.72 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 2.63 AU - 3.99 AU

Year: 3829 Days

Day: 6.1 Hours

Environment

Temp: -214 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 62,920,495 km

• M1: 123,119 km (0.042 R)
• M2: 474,973 km (0.026 R)
• M3: 884,273 km (0.103 R)
• M4: 1,432,250 km (0.1 R)
• M5: 2,355,119 km (0.105 R)
• M6: 2,902,947 km (0.039 R)
• M7: 3,860,822 km (0.117 R)
• M8: 4,600,434 km (0.108 R)
• M9: 5,841,198 km (0.118 R)
• M10: 6,509,303 km (0.092 R)
• M11: 7,259,835 km (0.11 R)
• M12: 7,589,250 km (0.087 R)
• M13: 8,420,565 km (0.107 R)
• M14: 9,083,134 km (0.042 R)
• M15: 9,622,135 km (0.05 R)
• M16: 10,470,505 km (0.114 R)
• M17: 11,193,062 km (0.095 R)
• M18: 11,633,478 km (0.12 R)
• M19: 13,364,326 km (0.075 R)
• M20: 14,731,351 km (0.093 R)
• M21: 16,189,482 km (0.1 R)
• M22: 17,329,866 km (0.065 R)
• M23: 18,583,945 km (0.069 R)
• M24: 19,453,109 km (0.046 R)
• M25: 21,473,727 km (0.094 R)
• M26: 23,131,272 km (0.102 R)
• M27: 24,209,573 km (0.041 R)
• M28: 24,798,241 km (0.088 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 205.9

Radius: 14.9

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 3.6 AU - 5.88 AU

Year: 6561 Days

Day: 8.5 Hours

Environment

Temp: -221 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 62,920,495 km

• M1: 189,989 km (0.117 R)
• M2: 730,636 km (0.117 R)
• M3: 1,298,510 km (0.104 R)
• M4: 2,377,709 km (0.081 R)
• M5: 5,434,292 km (0.064 R)
• M6: 6,823,308 km (0.074 R)
• M7: 8,020,540 km (0.096 R)
• M8: 10,294,877 km (0.06 R)
• M9: 11,169,426 km (0.118 R)
• M10: 11,735,205 km (0.118 R)
• M11: 16,693,327 km (0.071 R)
• M12: 17,666,461 km (0.081 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 646.2

Radius: 3.3

Gravity: 59.34 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 4.84 AU - 8.04 AU

Year: 10391 Days

Day: 21.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 62,920,495 km

• M1: 56,249 km (0.042 R)
• M2: 741,108 km (0.06 R)
• M3: 897,737 km (0.107 R)
• M4: 1,054,216 km (0.1 R)
• M5: 1,216,231 km (0.044 R)
• M6: 1,421,778 km (0.107 R)
• M7: 3,485,182 km (0.085 R)
• M8: 4,007,428 km (0.094 R)
• M9: 6,136,953 km (0.101 R)
• M10: 10,553,831 km (0.091 R)
• M11: 15,394,070 km (0.098 R)
• M12: 15,733,657 km (0.099 R)
• M13: 22,211,843 km (0.1 R)
• M14: 25,935,184 km (0.073 R)
• M15: 26,804,797 km (0.08 R)
• M16: 29,218,110 km (0.11 R)
• M17: 31,228,406 km (0.104 R)
• M18: 43,478,228 km (0.091 R)
• M19: 46,373,096 km (0.119 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 199.5

Radius: 4.5

Gravity: 9.85 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 6.03 AU - 7.77 AU

Year: 11524 Days

Day: 23.9 Hours

Environment

Temp: -221 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 62,920,495 km

• M1: 55,950 km (0.12 R)
• M2: 236,514 km (0.119 R)
• M3: 888,911 km (0.052 R)
• M4: 1,045,240 km (0.088 R)
• M5: 1,241,962 km (0.103 R)
• M6: 1,655,749 km (0.069 R)
• M7: 2,204,923 km (0.1 R)
• M8: 2,770,553 km (0.107 R)
• M9: 2,985,824 km (0.08 R)
• M10: 3,254,502 km (0.093 R)
• M11: 3,936,219 km (0.051 R)
• M12: 4,818,547 km (0.099 R)
• M13: 5,731,394 km (0.092 R)
• M14: 5,952,499 km (0.1 R)
• M15: 6,754,045 km (0.078 R)
• M16: 7,253,552 km (0.119 R)
• M17: 7,970,275 km (0.057 R)
• M18: 8,941,764 km (0.033 R)
• M19: 12,430,386 km (0.092 R)
• M20: 13,731,888 km (0.073 R)
• M21: 17,116,988 km (0.084 R)
• M22: 21,620,782 km (0.074 R)
• M23: 25,221,303 km (0.084 R)
• M24: 25,390,050 km (0.077 R)
• M25: 26,418,086 km (0.093 R)
• M26: 27,207,215 km (0.086 R)
• M27: 29,950,840 km (0.045 R)
• M28: 34,196,727 km (0.11 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 545.5

Radius: 7.5

Gravity: 9.7 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 7.17 AU - 10.61 AU

Year: 16853 Days

Day: 24.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 62,920,495 km

• M1: 95,294 km (0.117 R)
• M2: 380,727 km (0.099 R)
• M3: 726,447 km (0.117 R)
• M4: 1,063,192 km (0.05 R)
• M5: 1,472,492 km (0.117 R)
• M6: 2,210,458 km (0.064 R)
• M7: 3,049,104 km (0.05 R)
• M8: 3,734,711 km (0.098 R)
• M9: 4,848,467 km (0.113 R)
• M10: 5,229,194 km (0.114 R)
• M11: 5,555,317 km (0.078 R)
• M12: 6,050,486 km (0.086 R)
• M13: 6,451,109 km (0.059 R)
• M14: 9,081,040 km (0.107 R)
• M15: 11,008,907 km (0.044 R)
• M16: 14,214,042 km (0.1 R)
• M17: 15,579,721 km (0.107 R)
• M18: 16,563,027 km (0.102 R)
• M19: 17,748,441 km (0.108 R)
• M20: 18,486,258 km (0.116 R)
• M21: 19,501,578 km (0.026 R)
• M22: 19,848,197 km (0.113 R)
• M23: 21,643,072 km (0.029 R)
• M24: 22,579,854 km (0.11 R)
• M25: 23,251,548 km (0.061 R)
• M26: 23,936,407 km (0.095 R)
• M27: 24,938,115 km (0.104 R)
• M28: 29,679,320 km (0.084 R)
• M29: 30,137,987 km (0.103 R)
• M30: 33,482,247 km (0.088 R)
• M31: 34,988,249 km (0.118 R)
• M32: 41,465,239 km (0.104 R)
• M33: 43,494,833 km (0.116 R)
• M34: 45,135,174 km (0.059 R)
• M35: 47,594,263 km (0.04 R)
• M36: 61,424,736 km (0.102 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 293 - 17,712 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit