🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 487.5

Radius: 10.1

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.64 AU - 1.02 AU

Year: 481 Days

Day: 9.9 Hours

Environment

Temp: -149 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 68,257,927 km

• M1: 125,662 km (0.111 R)
• M2: 466,596 km (0.118 R)
• M3: 850,913 km (0.101 R)
• M4: 1,193,941 km (0.095 R)
• M5: 1,673,252 km (0.049 R)
• M6: 2,207,915 km (0.081 R)
• M7: 2,602,704 km (0.061 R)
• M8: 3,142,902 km (0.073 R)
• M9: 3,781,535 km (0.055 R)
• M10: 4,132,192 km (0.058 R)
• M11: 4,765,141 km (0.088 R)
• M12: 5,445,362 km (0.119 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 992.4

Radius: 11.9

Gravity: 7.01 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 0.78 AU - 1.14 AU

Year: 598 Days

Day: 14.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 15.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 68,257,927 km

• M1: 147,952 km (0.103 R)
• M2: 638,783 km (0.074 R)
• M3: 1,048,980 km (0.081 R)
• M4: 1,437,935 km (0.076 R)
• M5: 2,447,720 km (0.086 R)
• M6: 2,859,264 km (0.106 R)
• M7: 3,449,129 km (0.105 R)
• M8: 3,867,105 km (0.072 R)
• M9: 5,239,815 km (0.062 R)
• M10: 5,775,675 km (0.104 R)
• M11: 6,785,610 km (0.026 R)
• M12: 7,265,819 km (0.062 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 32.1

Radius: 10.8

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 1.38 AU - 1.72 AU

Year: 1227 Days

Day: 9.4 Hours

Environment

Temp: -187 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 68,257,927 km

• M1: 134,339 km (0.039 R)
• M2: 531,372 km (0.036 R)
• M3: 1,152,951 km (0.091 R)
• M4: 1,503,758 km (0.04 R)
• M5: 2,021,067 km (0.027 R)
• M6: 3,047,757 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 109.9

Radius: 10.2

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 2.18 AU - 2.56 AU

Year: 2320 Days

Day: 7.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 38.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 68,257,927 km

• M1: 136,882 km (0.114 R)
• M2: 568,472 km (0.088 R)
• M3: 970,741 km (0.119 R)
• M4: 1,981,873 km (0.106 R)
• M5: 2,496,639 km (0.082 R)
• M6: 3,059,276 km (0.101 R)
• M7: 3,980,949 km (0.047 R)
• M8: 8,086,513 km (0.107 R)
• M9: 8,528,126 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 19.2

Radius: 14.9

Gravity: 0.09 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 2.14 AU - 3.32 AU

Year: 2868 Days

Day: 8.4 Hours

Environment

Temp: -194 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 68,257,927 km

• M1: 187,297 km (0.109 R)
• M2: 1,059,602 km (0.059 R)
• M3: 1,580,502 km (0.101 R)
• M4: 2,275,683 km (0.107 R)
• M5: 3,035,490 km (0.1 R)
• M6: 4,067,865 km (0.075 R)
• M7: 4,562,585 km (0.1 R)
• M8: 5,209,746 km (0.061 R)
• M9: 6,006,205 km (0.11 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 998.1

Radius: 10.3

Gravity: 9.41 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 3.63 AU - 4.57 AU

Year: 5278 Days

Day: 12.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 68,257,927 km

• M1: 128,056 km (0.086 R)
• M2: 887,863 km (0.031 R)
• M3: 1,710,203 km (0.095 R)
• M4: 2,391,472 km (0.101 R)
• M5: 3,307,908 km (0.044 R)
• M6: 3,776,299 km (0.1 R)
• M7: 4,417,326 km (0.077 R)
• M8: 4,874,647 km (0.12 R)
• M9: 5,790,036 km (0.116 R)
• M10: 6,956,899 km (0.054 R)
• M11: 7,465,233 km (0.039 R)
• M12: 8,115,684 km (0.05 R)
• M13: 9,975,036 km (0.078 R)
• M14: 11,101,209 km (0.097 R)
• M15: 12,625,611 km (0.064 R)
• M16: 12,946,499 km (0.109 R)
• M17: 13,772,578 km (0.088 R)
• M18: 15,898,514 km (0.073 R)
• M19: 17,431,892 km (0.108 R)
• M20: 21,389,504 km (0.091 R)
• M21: 23,657,258 km (0.096 R)
• M22: 26,167,211 km (0.119 R)
• M23: 26,602,241 km (0.041 R)
• M24: 32,204,831 km (0.109 R)
• M25: 33,209,231 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 357.6

Radius: 12.1

Gravity: 2.44 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 3.72 AU - 5.28 AU

Year: 6069 Days

Day: 9.6 Hours

Environment

Temp: -223 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 68,257,927 km

• M1: 153,188 km (0.082 R)
• M2: 628,610 km (0.052 R)
• M3: 1,978,432 km (0.051 R)
• M4: 2,559,021 km (0.103 R)
• M5: 3,488,024 km (0.108 R)
• M6: 5,246,397 km (0.113 R)
• M7: 7,707,282 km (0.116 R)
• M8: 8,575,698 km (0.108 R)
• M9: 9,072,662 km (0.069 R)
• M10: 17,409,751 km (0.116 R)
• M11: 19,159,448 km (0.119 R)
• M12: 19,549,151 km (0.034 R)
• M13: 27,420,691 km (0.111 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 131.4

Radius: 10.9

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 4.71 AU - 5.25 AU

Year: 7066 Days

Day: 9.5 Hours

Environment

Temp: -226 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 68,257,927 km

• M1: 188,045 km (0.062 R)
• M2: 640,129 km (0.105 R)
• M3: 1,127,220 km (0.116 R)
• M4: 1,551,480 km (0.073 R)
• M5: 2,056,223 km (0.1 R)
• M6: 2,500,977 km (0.028 R)
• M7: 3,861,570 km (0.065 R)
• M8: 5,010,033 km (0.052 R)
• M9: 6,316,471 km (0.117 R)
• M10: 6,779,177 km (0.1 R)
• M11: 7,264,323 km (0.082 R)
• M12: 9,893,206 km (0.105 R)
• M13: 18,528,743 km (0.109 R)
• M14: 19,358,413 km (0.119 R)
• M15: 21,476,270 km (0.096 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 675.7

Radius: 4.8

Gravity: 29.33 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 8.08 AU - 9.88 AU

Year: 17110 Days

Day: 17.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 68,257,927 km

• M1: 60,138 km (0.104 R)
• M2: 846,874 km (0.051 R)
• M3: 1,002,455 km (0.066 R)
• M4: 1,272,180 km (0.094 R)
• M5: 2,763,821 km (0.052 R)
• M6: 2,933,913 km (0.079 R)
• M7: 4,043,182 km (0.119 R)
• M8: 4,294,805 km (0.103 R)
• M9: 4,898,881 km (0.096 R)
• M10: 6,526,207 km (0.041 R)
• M11: 6,741,179 km (0.084 R)
• M12: 7,230,963 km (0.092 R)
• M13: 9,704,414 km (0.115 R)
• M14: 11,530,405 km (0.086 R)
• M15: 14,353,018 km (0.081 R)
• M16: 15,692,218 km (0.054 R)
• M17: 19,049,194 km (0.111 R)
• M18: 20,847,959 km (0.032 R)
• M19: 30,352,959 km (0.117 R)
• M20: 33,302,431 km (0.055 R)
• M21: 35,636,008 km (0.078 R)
• M22: 38,354,052 km (0.075 R)
• M23: 38,773,375 km (0.07 R)
• M24: 41,061,324 km (0.112 R)
• M25: 48,137,304 km (0.041 R)
• M26: 51,961,923 km (0.082 R)
• M27: 58,901,170 km (0.115 R)
• M28: 59,646,017 km (0.108 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 437 - 12,855 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit