🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 573.4

Radius: 12.9

Gravity: 3.45 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.49 AU - 0.67 AU

Year: 300 Days

Day: 5.7 Hours

Environment

Temp: -150 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 69,374,540 km

• M1: 160,369 km (0.068 R)
• M2: 587,920 km (0.08 R)
• M3: 1,132,007 km (0.093 R)
• M4: 1,916,947 km (0.085 R)
• M5: 2,765,317 km (0.095 R)
• M6: 3,450,026 km (0.117 R)
• M7: 3,932,180 km (0.043 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 575

Radius: 12.6

Gravity: 3.62 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.57 AU - 0.63 AU

Year: 315 Days

Day: 14.9 Hours

Environment

Temp: -146 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 69,374,540 km

• M1: 156,779 km (0.068 R)
• M2: 561,590 km (0.116 R)
• M3: 980,315 km (0.099 R)
• M4: 1,454,989 km (0.081 R)
• M5: 1,871,918 km (0.068 R)
• M6: 2,646,985 km (0.062 R)
• M7: 3,175,664 km (0.087 R)
• M8: 3,867,255 km (0.073 R)
• M9: 4,268,476 km (0.033 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 548.7

Radius: 8.3

Gravity: 7.96 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 1.02 AU - 1.56 AU

Year: 994 Days

Day: 12.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 69,374,540 km

• M1: 103,223 km (0.084 R)
• M2: 398,529 km (0.09 R)
• M3: 659,278 km (0.116 R)
• M4: 969,843 km (0.063 R)
• M5: 1,334,413 km (0.069 R)
• M6: 1,607,429 km (0.091 R)
• M7: 2,164,382 km (0.071 R)
• M8: 3,034,593 km (0.032 R)
• M9: 3,315,986 km (0.104 R)
• M10: 3,793,503 km (0.063 R)
• M11: 4,201,456 km (0.101 R)
• M12: 4,690,791 km (0.037 R)
• M13: 5,086,926 km (0.085 R)
• M14: 8,101,323 km (0.096 R)
• M15: 8,698,967 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 368.5

Radius: 11.5

Gravity: 2.79 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 1.59 AU - 2.13 AU

Year: 1721 Days

Day: 5.4 Hours

Environment

Temp: -204 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 69,374,540 km

• M1: 143,315 km (0.091 R)
• M2: 623,823 km (0.115 R)
• M3: 1,151,156 km (0.103 R)
• M4: 1,650,513 km (0.088 R)
• M5: 2,224,520 km (0.115 R)
• M6: 3,679,060 km (0.117 R)
• M7: 4,057,693 km (0.111 R)
• M8: 4,778,605 km (0.073 R)
• M9: 5,415,443 km (0.047 R)
• M10: 6,221,327 km (0.106 R)
• M11: 6,617,611 km (0.108 R)
• M12: 7,155,565 km (0.117 R)
• M13: 8,946,401 km (0.107 R)
• M14: 10,456,891 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 477

Radius: 11

Gravity: 3.94 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 2.19 AU - 2.45 AU

Year: 2397 Days

Day: 9.6 Hours

Environment

Temp: -213 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 69,374,540 km

• M1: 140,323 km (0.045 R)
• M2: 554,111 km (0.103 R)
• M3: 987,196 km (0.105 R)
• M4: 1,332,618 km (0.082 R)
• M5: 1,957,189 km (0.077 R)
• M6: 2,626,041 km (0.036 R)
• M7: 3,131,532 km (0.036 R)
• M8: 3,955,069 km (0.102 R)
• M9: 4,318,891 km (0.057 R)
• M10: 4,895,890 km (0.028 R)
• M11: 5,338,998 km (0.028 R)
• M12: 6,103,892 km (0.03 R)
• M13: 6,565,252 km (0.102 R)
• M14: 6,967,521 km (0.092 R)
• M15: 8,335,743 km (0.091 R)
• M16: 10,049,835 km (0.108 R)
• M17: 10,658,100 km (0.089 R)
• M18: 13,682,072 km (0.102 R)
• M19: 14,429,463 km (0.058 R)
• M20: 16,150,437 km (0.097 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 894.6

Radius: 13.8

Gravity: 4.7 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 3.41 AU - 4.97 AU

Year: 5817 Days

Day: 13.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 69,374,540 km

• M1: 171,888 km (0.069 R)
• M2: 607,966 km (0.116 R)
• M3: 1,192,594 km (0.107 R)
• M4: 2,213,151 km (0.11 R)
• M5: 2,883,200 km (0.114 R)
• M6: 5,077,651 km (0.072 R)
• M7: 5,551,128 km (0.114 R)
• M8: 6,317,069 km (0.11 R)
• M9: 6,795,633 km (0.081 R)
• M10: 8,178,964 km (0.06 R)
• M11: 11,597,874 km (0.03 R)
• M12: 12,529,420 km (0.055 R)
• M13: 13,232,829 km (0.114 R)
• M14: 14,192,350 km (0.118 R)
• M15: 15,016,784 km (0.117 R)
• M16: 17,416,483 km (0.102 R)
• M17: 18,777,226 km (0.085 R)
• M18: 20,207,830 km (0.1 R)
• M19: 23,285,357 km (0.09 R)
• M20: 25,703,308 km (0.062 R)
• M21: 26,136,543 km (0.116 R)
• M22: 27,106,835 km (0.064 R)
• M23: 27,736,642 km (0.032 R)
• M24: 29,401,218 km (0.116 R)
• M25: 30,162,072 km (0.097 R)
• M26: 32,121,655 km (0.027 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 792.4

Radius: 6.6

Gravity: 18.19 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 7.95 AU - 8.63 AU

Year: 16189 Days

Day: 19.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 69,374,540 km

• M1: 82,279 km (0.034 R)
• M2: 350,209 km (0.084 R)
• M3: 1,113,607 km (0.114 R)
• M4: 1,328,279 km (0.081 R)
• M5: 1,860,998 km (0.111 R)
• M6: 2,166,476 km (0.108 R)
• M7: 4,256,059 km (0.102 R)
• M8: 5,034,716 km (0.099 R)
• M9: 5,514,776 km (0.098 R)
• M10: 9,546,738 km (0.116 R)
• M11: 10,574,325 km (0.074 R)
• M12: 12,056,392 km (0.081 R)
• M13: 13,671,899 km (0.111 R)
• M14: 15,049,247 km (0.058 R)
• M15: 15,656,016 km (0.094 R)
• M16: 16,516,652 km (0.112 R)
• M17: 17,408,405 km (0.076 R)
• M18: 18,246,751 km (0.084 R)
• M19: 18,849,182 km (0.06 R)
• M20: 19,733,006 km (0.111 R)
• M21: 20,094,136 km (0.054 R)
• M22: 20,367,750 km (0.114 R)
• M23: 20,922,758 km (0.109 R)
• M24: 23,951,367 km (0.057 R)
• M25: 25,945,357 km (0.114 R)
• M26: 34,898,790 km (0.117 R)
• M27: 37,455,118 km (0.118 R)
• M28: 44,464,227 km (0.116 R)
• M29: 45,084,909 km (0.037 R)
• M30: 46,661,969 km (0.106 R)
• M31: 54,391,991 km (0.078 R)
• M32: 61,387,636 km (0.084 R)
• M33: 62,350,448 km (0.112 R)
• M34: 62,933,131 km (0.084 R)
• M35: 63,519,256 km (0.084 R)
• M36: 64,504,208 km (0.111 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: 177 - 17,765 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit