🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.46 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 374.1

Radius: 13.5

Gravity: 2.05 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 0.72 AU - 1.1 AU

Year: 561 Days

Day: 14 Hours

Environment

Temp: -157 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 59,374,571 km

• M1: 170,990 km (0.103 R)
• M2: 787,782 km (0.066 R)
• M3: 1,371,064 km (0.096 R)
• M4: 1,798,615 km (0.094 R)
• M5: 2,221,229 km (0.091 R)
• M6: 3,128,241 km (0.095 R)
• M7: 3,686,391 km (0.106 R)
• M8: 4,161,364 km (0.112 R)
• M9: 5,065,533 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 199.3

Radius: 13.6

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 1.17 AU - 1.19 AU

Year: 828 Days

Day: 7.3 Hours

Environment

Temp: -171 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 59,374,571 km

• M1: 169,345 km (0.083 R)
• M2: 619,186 km (0.081 R)
• M3: 1,209,798 km (0.089 R)
• M4: 1,727,706 km (0.118 R)
• M5: 3,238,943 km (0.114 R)
• M6: 4,137,428 km (0.12 R)
• M7: 4,572,758 km (0.045 R)
• M8: 5,275,569 km (0.054 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 17.4

Radius: 14.1

Gravity: 0.09 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.21 AU - 1.21 AU

Year: 859 Days

Day: 10.5 Hours

Environment

Temp: -178 °C

Axial Tilt: 14.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 59,374,571 km

• M1: 175,329 km (0.102 R)
• M2: 676,482 km (0.105 R)
• M3: 1,394,252 km (0.089 R)
• M4: 2,188,617 km (0.106 R)
• M5: 2,667,629 km (0.047 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 80.2

Radius: 10.1

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 1.83 AU - 2.91 AU

Year: 2356 Days

Day: 9.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 59,374,571 km

• M1: 145,858 km (0.114 R)
• M2: 550,969 km (0.118 R)
• M3: 1,107,024 km (0.053 R)
• M4: 1,529,788 km (0.069 R)
• M5: 1,955,244 km (0.11 R)
• M6: 2,754,246 km (0.112 R)
• M7: 3,163,397 km (0.036 R)
• M8: 3,742,789 km (0.082 R)
• M9: 4,058,291 km (0.092 R)
• M10: 4,375,289 km (0.109 R)
• M11: 6,684,033 km (0.108 R)
• M12: 8,708,541 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 73.6

Radius: 8.3

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 2.3 AU - 3.58 AU

Year: 3255 Days

Day: 8.3 Hours

Environment

Temp: -195 °C

Axial Tilt: 7.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 59,374,571 km

• M1: 103,223 km (0.071 R)
• M2: 917,185 km (0.093 R)
• M3: 4,326,370 km (0.068 R)
• M4: 7,208,523 km (0.079 R)
• M5: 8,860,532 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 195.7

Radius: 8.4

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 3.6 AU - 3.82 AU

Year: 4614 Days

Day: 12.3 Hours

Environment

Temp: -201 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 59,374,571 km

• M1: 104,419 km (0.105 R)
• M2: 426,354 km (0.119 R)
• M3: 957,426 km (0.095 R)
• M4: 1,331,421 km (0.073 R)
• M5: 1,636,900 km (0.107 R)
• M6: 1,964,968 km (0.026 R)
• M7: 2,256,385 km (0.102 R)
• M8: 2,518,630 km (0.104 R)
• M9: 2,832,636 km (0.069 R)
• M10: 3,594,388 km (0.107 R)
• M11: 4,173,781 km (0.068 R)
• M12: 5,844,041 km (0.053 R)
• M13: 6,343,249 km (0.059 R)
• M14: 6,645,137 km (0.086 R)
• M15: 7,130,433 km (0.101 R)
• M16: 9,702,320 km (0.099 R)
• M17: 10,823,107 km (0.088 R)
• M18: 11,576,182 km (0.105 R)
• M19: 12,835,647 km (0.046 R)
• M20: 13,953,143 km (0.057 R)
• M21: 16,483,142 km (0.113 R)
• M22: 16,793,408 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 699.5

Radius: 12.6

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 3.55 AU - 5.87 AU

Year: 6600 Days

Day: 12.3 Hours

Environment

Temp: -224 °C

Axial Tilt: 62.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 59,374,571 km

• M1: 156,629 km (0.103 R)
• M2: 588,518 km (0.072 R)
• M3: 1,054,515 km (0.118 R)
• M4: 1,772,884 km (0.056 R)
• M5: 3,749,371 km (0.09 R)
• M6: 5,519,563 km (0.082 R)
• M7: 5,957,586 km (0.114 R)
• M8: 7,639,365 km (0.084 R)
• M9: 8,345,317 km (0.11 R)
• M10: 9,842,493 km (0.05 R)
• M11: 12,387,452 km (0.12 R)
• M12: 14,741,524 km (0.078 R)
• M13: 15,282,470 km (0.114 R)
• M14: 17,313,560 km (0.054 R)
• M15: 18,463,070 km (0.067 R)
• M16: 22,138,839 km (0.114 R)
• M17: 24,816,192 km (0.091 R)
• M18: 25,668,302 km (0.114 R)
• M19: 28,434,516 km (0.118 R)
• M20: 31,789,996 km (0.09 R)
• M21: 35,615,214 km (0.076 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 367.3

Radius: 4.6

Gravity: 17.36 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 6.56 AU - 10.84 AU

Year: 16569 Days

Day: 21.9 Hours

Environment

Temp: -232 °C

Axial Tilt: 42.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 59,374,571 km

• M1: 62,233 km (0.096 R)
• M2: 473,627 km (0.075 R)
• M3: 669,450 km (0.072 R)
• M4: 1,291,778 km (0.12 R)
• M5: 1,587,533 km (0.066 R)
• M6: 1,944,324 km (0.098 R)
• M7: 2,255,188 km (0.046 R)
• M8: 2,793,890 km (0.065 R)
• M9: 4,238,556 km (0.079 R)
• M10: 5,569,230 km (0.034 R)
• M11: 10,739,781 km (0.111 R)
• M12: 13,228,042 km (0.108 R)
• M13: 15,015,737 km (0.082 R)
• M14: 15,293,690 km (0.091 R)
• M15: 17,108,611 km (0.118 R)
• M16: 18,421,631 km (0.056 R)
• M17: 22,129,415 km (0.056 R)
• M18: 22,398,990 km (0.12 R)
• M19: 23,967,823 km (0.057 R)
• M20: 26,607,776 km (0.051 R)
• M21: 31,201,927 km (0.067 R)
• M22: 42,610,111 km (0.086 R)
• M23: 45,587,857 km (0.119 R)
• M24: 47,350,120 km (0.109 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 461.4

Radius: 6.1

Gravity: 12.4 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 7.71 AU - 9.85 AU

Year: 16798 Days

Day: 18.1 Hours

Environment

Temp: -232 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 59,374,571 km

• M1: 97,089 km (0.029 R)
• M2: 362,027 km (0.034 R)
• M3: 1,094,159 km (0.109 R)
• M4: 1,552,228 km (0.06 R)
• M5: 4,015,057 km (0.114 R)
• M6: 4,253,217 km (0.099 R)
• M7: 4,692,586 km (0.109 R)
• M8: 5,923,328 km (0.111 R)
• M9: 8,904,065 km (0.055 R)
• M10: 9,465,207 km (0.06 R)
• M11: 10,771,047 km (0.104 R)
• M12: 11,705,734 km (0.12 R)
• M13: 16,511,566 km (0.044 R)
• M14: 22,767,001 km (0.025 R)
• M15: 24,992,568 km (0.117 R)
• M16: 25,799,499 km (0.086 R)
• M17: 26,209,397 km (0.064 R)
• M18: 29,312,506 km (0.106 R)
• M19: 31,356,761 km (0.069 R)
• M20: 36,364,250 km (0.118 R)
• M21: 37,661,713 km (0.072 R)
• M22: 43,883,638 km (0.1 R)
• M23: 47,773,182 km (0.11 R)
• M24: 51,886,525 km (0.091 R)
• M25: 54,699,863 km (0.077 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 488 - 16,867 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit