🌌 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 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 675.6

Radius: 8.2

Gravity: 10.05 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.56 AU - 0.56 AU

Year: 284 Days

Day: 13.3 Hours

Environment

Temp: -136 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 84,902,530 km

• M1: 104,719 km (0.064 R)
• M2: 388,206 km (0.111 R)
• M3: 688,150 km (0.073 R)
• M4: 1,256,173 km (0.063 R)
• M5: 1,669,063 km (0.079 R)
• M6: 1,926,372 km (0.116 R)
• M7: 2,383,842 km (0.112 R)
• M8: 2,912,072 km (0.12 R)
• M9: 3,193,915 km (0.041 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 239

Radius: 13.9

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.82 AU - 0.88 AU

Year: 532 Days

Day: 6.6 Hours

Environment

Temp: -161 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 84,902,530 km

• M1: 172,935 km (0.119 R)
• M2: 605,871 km (0.088 R)
• M3: 1,206,208 km (0.117 R)
• M4: 1,976,038 km (0.064 R)
• M5: 2,439,642 km (0.117 R)
• M6: 2,986,273 km (0.09 R)
• M7: 3,823,422 km (0.073 R)
• M8: 4,330,110 km (0.116 R)
• M9: 4,770,377 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 75.5

Radius: 9.1

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 1.19 AU - 1.49 AU

Year: 1052 Days

Day: 11.1 Hours

Environment

Temp: -177 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 84,902,530 km

• M1: 113,096 km (0.089 R)
• M2: 419,472 km (0.055 R)
• M3: 2,085,694 km (0.108 R)
• M4: 3,167,436 km (0.061 R)
• M5: 3,924,999 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 763.1

Radius: 10.1

Gravity: 7.48 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 1.28 AU - 1.96 AU

Year: 1399 Days

Day: 8.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 84,902,530 km

• M1: 125,662 km (0.048 R)
• M2: 509,381 km (0.113 R)
• M3: 949,198 km (0.115 R)
• M4: 1,485,058 km (0.11 R)
• M5: 1,813,425 km (0.092 R)
• M6: 2,156,453 km (0.059 R)
• M7: 2,543,014 km (0.094 R)
• M8: 2,919,253 km (0.045 R)
• M9: 3,394,675 km (0.109 R)
• M10: 4,295,703 km (0.107 R)
• M11: 5,158,583 km (0.108 R)
• M12: 5,587,331 km (0.106 R)
• M13: 6,227,460 km (0.047 R)
• M14: 6,565,551 km (0.05 R)
• M15: 6,890,328 km (0.089 R)
• M16: 8,270,219 km (0.12 R)
• M17: 9,071,166 km (0.117 R)
• M18: 9,538,211 km (0.086 R)
• M19: 10,352,023 km (0.107 R)
• M20: 10,896,709 km (0.089 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 295.6

Radius: 13

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 2.13 AU - 3.41 AU

Year: 3127 Days

Day: 9.6 Hours

Environment

Temp: -206 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 84,902,530 km

• M1: 161,715 km (0.064 R)
• M2: 598,990 km (0.118 R)
• M3: 1,026,241 km (0.1 R)
• M4: 1,617,901 km (0.099 R)
• M5: 2,046,948 km (0.087 R)
• M6: 2,926,134 km (0.063 R)
• M7: 3,385,998 km (0.063 R)
• M8: 5,854,213 km (0.088 R)
• M9: 8,340,231 km (0.116 R)
• M10: 9,713,539 km (0.115 R)
• M11: 11,655,170 km (0.073 R)
• M12: 13,496,869 km (0.109 R)
• M13: 14,285,400 km (0.089 R)
• M14: 14,736,587 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 178.2

Radius: 8.6

Gravity: 2.41 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 2.79 AU - 4.47 AU

Year: 4691 Days

Day: 8.2 Hours

Environment

Temp: -209 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 84,902,530 km

• M1: 106,962 km (0.114 R)
• M2: 376,987 km (0.052 R)
• M3: 803,640 km (0.096 R)
• M4: 1,230,293 km (0.089 R)
• M5: 1,802,954 km (0.085 R)
• M6: 2,982,982 km (0.043 R)
• M7: 3,315,089 km (0.109 R)
• M8: 4,194,276 km (0.089 R)
• M9: 4,569,317 km (0.087 R)
• M10: 5,932,902 km (0.085 R)
• M11: 6,460,683 km (0.08 R)
• M12: 7,459,249 km (0.118 R)
• M13: 7,731,816 km (0.116 R)
• M14: 8,361,773 km (0.1 R)
• M15: 11,031,497 km (0.101 R)
• M16: 12,326,715 km (0.095 R)
• M17: 12,665,704 km (0.101 R)
• M18: 13,010,976 km (0.115 R)
• M19: 13,765,398 km (0.026 R)
• M20: 14,361,844 km (0.098 R)
• M21: 15,361,607 km (0.048 R)
• M22: 16,153,877 km (0.108 R)
• M23: 17,927,659 km (0.079 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 701.1

Radius: 11

Gravity: 5.79 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 3.61 AU - 5.67 AU

Year: 6779 Days

Day: 9.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 84,902,530 km

• M1: 137,181 km (0.098 R)
• M2: 565,480 km (0.084 R)
• M3: 1,099,993 km (0.073 R)
• M4: 1,609,523 km (0.111 R)
• M5: 2,126,833 km (0.096 R)
• M6: 3,089,645 km (0.048 R)
• M7: 3,498,645 km (0.105 R)
• M8: 4,295,703 km (0.101 R)
• M9: 4,835,302 km (0.074 R)
• M10: 5,511,186 km (0.117 R)
• M11: 5,952,649 km (0.032 R)
• M12: 6,729,361 km (0.064 R)
• M13: 7,764,578 km (0.094 R)
• M14: 8,860,532 km (0.098 R)
• M15: 9,379,487 km (0.082 R)
• M16: 11,970,074 km (0.072 R)
• M17: 12,390,892 km (0.043 R)
• M18: 13,373,601 km (0.049 R)
• M19: 13,999,369 km (0.027 R)
• M20: 15,432,367 km (0.107 R)
• M21: 15,868,145 km (0.1 R)
• M22: 18,034,323 km (0.119 R)
• M23: 21,373,197 km (0.104 R)
• M24: 31,083,446 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 820.1

Radius: 4.3

Gravity: 44.35 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 7.86 AU - 12.2 AU

Year: 21545 Days

Day: 23.5 Hours

Environment

Temp: -240 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 84,902,530 km

• M1: 53,406 km (0.064 R)
• M2: 271,670 km (0.115 R)
• M3: 590,762 km (0.099 R)
• M4: 850,613 km (0.119 R)
• M5: 1,059,153 km (0.116 R)
• M6: 1,197,381 km (0.071 R)
• M7: 1,476,980 km (0.107 R)
• M8: 2,187,719 km (0.112 R)
• M9: 3,186,584 km (0.083 R)
• M10: 3,568,059 km (0.096 R)
• M11: 5,009,584 km (0.101 R)
• M12: 5,402,727 km (0.097 R)
• M13: 6,161,936 km (0.074 R)
• M14: 6,613,123 km (0.039 R)
• M15: 7,785,372 km (0.12 R)
• M16: 8,862,776 km (0.083 R)
• M17: 9,262,203 km (0.098 R)
• M18: 9,914,150 km (0.099 R)
• M19: 11,441,694 km (0.086 R)
• M20: 11,575,734 km (0.068 R)
• M21: 13,788,735 km (0.063 R)
• M22: 15,766,868 km (0.084 R)
• M23: 15,932,921 km (0.102 R)
• M24: 20,669,339 km (0.096 R)
• M25: 23,897,063 km (0.039 R)
• M26: 26,732,691 km (0.035 R)
• M27: 27,206,318 km (0.111 R)
• M28: 30,421,924 km (0.094 R)
• M29: 30,808,485 km (0.114 R)
• M30: 31,198,337 km (0.116 R)
• M31: 37,300,135 km (0.077 R)
• M32: 37,447,339 km (0.077 R)
• M33: 40,318,721 km (0.048 R)
• M34: 55,926,865 km (0.085 R)
• M35: 60,679,589 km (0.065 R)
• M36: 67,644,118 km (0.087 R)
• M37: 69,855,175 km (0.108 R)
• M38: 78,454,958 km (0.091 R)
• M39: 81,884,489 km (0.07 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: 250 - 15,805 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit