🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.8

Radius: 1.27

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.54 AU - 0.64 AU

Year: 297 Days

Day: 31.3 Hours

Environment

Temp: -125 °C

Axial Tilt: 33.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 65,268,093 km

• M1: 193,580 km (0.114 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.05

Radius: 1.02

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.55 AU - 0.63 AU

Year: 297 Days

Day: 44.1 Hours

Environment

Temp: -121 °C

Axial Tilt: 123.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 65,268,093 km

• M1: 33,959 km (0.062 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.57

Radius: 1.46

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.48 AU - 0.72 AU

Year: 305 Days

Day: 46.9 Hours

Environment

Temp: -123 °C

Axial Tilt: 37.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 430.2

Radius: 8.6

Gravity: 5.82 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.59 AU - 0.89 AU

Year: 418 Days

Day: 5.6 Hours

Environment

Temp: -138 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 65,268,093 km

• M1: 107,262 km (0.039 R)
• M2: 400,324 km (0.08 R)
• M3: 915,539 km (0.101 R)
• M4: 1,416,093 km (0.11 R)
• M5: 1,800,710 km (0.092 R)
• M6: 3,773,606 km (0.111 R)
• M7: 4,058,141 km (0.089 R)
• M8: 4,670,446 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 520.3

Radius: 8.2

Gravity: 7.74 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 2.1 AU - 3.26 AU

Year: 2878 Days

Day: 12.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 45.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 65,268,093 km

• M1: 102,026 km (0.092 R)
• M2: 518,207 km (0.068 R)
• M3: 1,070,373 km (0.025 R)
• M4: 1,399,338 km (0.027 R)
• M5: 2,083,300 km (0.033 R)
• M6: 2,647,134 km (0.115 R)
• M7: 4,301,238 km (0.083 R)
• M8: 5,479,620 km (0.029 R)
• M9: 6,522,916 km (0.086 R)
• M10: 6,888,982 km (0.048 R)
• M11: 7,268,661 km (0.054 R)
• M12: 8,393,338 km (0.112 R)
• M13: 9,066,229 km (0.094 R)
• M14: 9,920,433 km (0.053 R)
• M15: 11,301,072 km (0.086 R)
• M16: 11,829,900 km (0.091 R)
• M17: 12,374,885 km (0.081 R)
• M18: 15,354,725 km (0.101 R)
• M19: 16,003,382 km (0.085 R)
• M20: 18,059,006 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 899.1

Radius: 10.1

Gravity: 8.81 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 2.89 AU - 3.67 AU

Year: 3897 Days

Day: 10.3 Hours

Environment

Temp: -214 °C

Axial Tilt: 17.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 65,268,093 km

• M1: 125,662 km (0.113 R)
• M2: 469,139 km (0.027 R)
• M3: 841,189 km (0.115 R)
• M4: 1,173,595 km (0.065 R)
• M5: 1,619,098 km (0.116 R)
• M6: 2,372,921 km (0.046 R)
• M7: 2,964,581 km (0.034 R)
• M8: 3,694,170 km (0.056 R)
• M9: 4,737,914 km (0.052 R)
• M10: 5,314,913 km (0.055 R)
• M11: 5,648,965 km (0.109 R)
• M12: 6,833,332 km (0.055 R)
• M13: 7,161,998 km (0.086 R)
• M14: 8,066,616 km (0.101 R)
• M15: 8,622,223 km (0.119 R)
• M16: 9,402,376 km (0.091 R)
• M17: 9,768,591 km (0.082 R)
• M18: 10,660,195 km (0.103 R)
• M19: 11,013,694 km (0.076 R)
• M20: 11,420,900 km (0.06 R)
• M21: 15,215,001 km (0.096 R)
• M22: 17,731,686 km (0.111 R)
• M23: 20,310,604 km (0.043 R)
• M24: 21,760,057 km (0.063 R)
• M25: 23,203,527 km (0.115 R)
• M26: 26,602,092 km (0.087 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 684.9

Radius: 10.5

Gravity: 6.21 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 3.5 AU - 5.68 AU

Year: 6451 Days

Day: 10.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 126 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 65,268,093 km

• M1: 130,599 km (0.083 R)
• M2: 575,802 km (0.115 R)
• M3: 904,918 km (0.095 R)
• M4: 1,531,882 km (0.107 R)
• M5: 2,344,647 km (0.097 R)
• M6: 2,791,047 km (0.105 R)
• M7: 3,188,529 km (0.103 R)
• M8: 3,600,970 km (0.057 R)
• M9: 6,062,603 km (0.097 R)
• M10: 6,459,337 km (0.1 R)
• M11: 8,586,918 km (0.097 R)
• M12: 9,389,810 km (0.115 R)
• M13: 10,854,074 km (0.113 R)
• M14: 12,099,775 km (0.105 R)
• M15: 14,115,008 km (0.042 R)
• M16: 15,597,224 km (0.098 R)
• M17: 17,977,924 km (0.116 R)
• M18: 20,223,837 km (0.05 R)
• M19: 24,180,252 km (0.096 R)
• M20: 25,265,734 km (0.083 R)
• M21: 26,383,230 km (0.071 R)
• M22: 28,349,245 km (0.074 R)
• M23: 34,308,177 km (0.08 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 356.7

Radius: 3.3

Gravity: 32.75 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 7.22 AU - 9.02 AU

Year: 15179 Days

Day: 17.9 Hours

Environment

Temp: -232 °C

Axial Tilt: 47.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 65,268,093 km

• M1: 41,289 km (0.097 R)
• M2: 473,028 km (0.11 R)
• M3: 845,826 km (0.087 R)
• M4: 2,877,964 km (0.037 R)
• M5: 3,177,459 km (0.087 R)
• M6: 3,600,222 km (0.077 R)
• M7: 5,157,985 km (0.057 R)
• M8: 13,444,660 km (0.112 R)
• M9: 18,410,262 km (0.07 R)
• M10: 19,838,922 km (0.107 R)
• M11: 20,002,133 km (0.073 R)
• M12: 20,580,179 km (0.042 R)
• M13: 21,769,781 km (0.091 R)
• M14: 22,293,374 km (0.116 R)
• M15: 29,990,035 km (0.081 R)
• M16: 42,853,058 km (0.116 R)
• M17: 44,089,335 km (0.102 R)
• M18: 48,974,005 km (0.05 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 629.6

Radius: 6.8

Gravity: 13.62 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 7.98 AU - 9.24 AU

Year: 16573 Days

Day: 20.2 Hours

Environment

Temp: -238 °C

Axial Tilt: 46.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 65,268,093 km

• M1: 85,271 km (0.114 R)
• M2: 361,728 km (0.073 R)
• M3: 582,983 km (0.113 R)
• M4: 817,253 km (0.12 R)
• M5: 1,043,146 km (0.092 R)
• M6: 1,367,624 km (0.09 R)
• M7: 1,707,510 km (0.078 R)
• M8: 2,026,453 km (0.106 R)
• M9: 4,643,219 km (0.107 R)
• M10: 6,512,444 km (0.061 R)
• M11: 6,895,415 km (0.069 R)
• M12: 9,462,963 km (0.098 R)
• M13: 11,167,780 km (0.096 R)
• M14: 11,966,483 km (0.068 R)
• M15: 14,164,226 km (0.1 R)
• M16: 15,246,865 km (0.081 R)
• M17: 17,092,006 km (0.06 R)
• M18: 18,401,884 km (0.108 R)
• M19: 18,824,498 km (0.093 R)
• M20: 19,689,324 km (0.06 R)
• M21: 24,719,552 km (0.032 R)
• M22: 25,337,990 km (0.079 R)
• M23: 26,072,515 km (0.103 R)
• M24: 27,473,948 km (0.097 R)
• M25: 30,192,141 km (0.086 R)
• M26: 30,544,145 km (0.055 R)
• M27: 32,960,450 km (0.095 R)
• M28: 33,835,448 km (0.107 R)
• M29: 34,983,013 km (0.06 R)
• M30: 36,819,327 km (0.05 R)
• M31: 41,544,974 km (0.116 R)
• M32: 47,129,762 km (0.107 R)
• M33: 52,177,793 km (0.092 R)
• M34: 56,147,970 km (0.068 R)
• M35: 56,680,240 km (0.075 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 438 - 17,689 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit