🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 570.5

Radius: 12.1

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.56 AU - 0.66 AU

Year: 329 Days

Day: 13.9 Hours

Environment

Temp: -146 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 74,876,629 km

• M1: 150,495 km (0.103 R)
• M2: 550,520 km (0.1 R)
• M3: 936,931 km (0.045 R)
• M4: 1,357,900 km (0.098 R)
• M5: 1,760,169 km (0.11 R)
• M6: 2,333,577 km (0.117 R)
• M7: 3,161,003 km (0.099 R)
• M8: 3,570,153 km (0.088 R)
• M9: 4,002,491 km (0.063 R)
• M10: 4,588,915 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 848.3

Radius: 14.9

Gravity: 3.82 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.59 AU - 0.69 AU

Year: 353 Days

Day: 8.4 Hours

Environment

Temp: -146 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 74,876,629 km

• M1: 185,651 km (0.111 R)
• M2: 847,023 km (0.069 R)
• M3: 1,616,405 km (0.044 R)
• M4: 2,867,342 km (0.092 R)
• M5: 3,349,796 km (0.086 R)
• M6: 3,861,570 km (0.076 R)
• M7: 4,467,292 km (0.101 R)
• M8: 5,060,298 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 779.5

Radius: 11.2

Gravity: 6.21 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 1.1 AU - 1.7 AU

Year: 1143 Days

Day: 5.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 33.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 74,876,629 km

• M1: 139,575 km (0.099 R)
• M2: 489,783 km (0.112 R)
• M3: 936,333 km (0.096 R)
• M4: 1,435,691 km (0.106 R)
• M5: 1,844,392 km (0.098 R)
• M6: 2,544,061 km (0.093 R)
• M7: 3,094,133 km (0.063 R)
• M8: 4,995,223 km (0.116 R)
• M9: 5,583,142 km (0.078 R)
• M10: 6,994,897 km (0.059 R)
• M11: 7,890,240 km (0.091 R)
• M12: 9,093,007 km (0.051 R)
• M13: 10,608,135 km (0.066 R)
• M14: 10,970,161 km (0.119 R)
• M15: 11,511,706 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 235.4

Radius: 14.8

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 1.55 AU - 2.31 AU

Year: 1851 Days

Day: 14.2 Hours

Environment

Temp: -210 °C

Axial Tilt: 16.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 74,876,629 km

• M1: 184,155 km (0.117 R)
• M2: 753,824 km (0.115 R)
• M3: 1,282,802 km (0.118 R)
• M4: 1,807,142 km (0.117 R)
• M5: 2,352,277 km (0.03 R)
• M6: 3,007,366 km (0.087 R)
• M7: 3,599,474 km (0.12 R)
• M8: 4,815,705 km (0.092 R)
• M9: 5,409,160 km (0.091 R)
• M10: 6,094,468 km (0.084 R)
• M11: 7,946,639 km (0.1 R)
• M12: 8,585,871 km (0.117 R)
• M13: 9,087,472 km (0.041 R)
• M14: 10,150,216 km (0.065 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 218.5

Radius: 12.7

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 3.55 AU - 3.73 AU

Year: 4794 Days

Day: 14.9 Hours

Environment

Temp: -209 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 74,876,629 km

• M1: 159,322 km (0.072 R)
• M2: 733,778 km (0.066 R)
• M3: 1,403,228 km (0.102 R)
• M4: 1,923,529 km (0.102 R)
• M5: 2,485,120 km (0.105 R)
• M6: 2,940,197 km (0.087 R)
• M7: 3,941,455 km (0.116 R)
• M8: 4,371,399 km (0.086 R)
• M9: 5,375,051 km (0.057 R)
• M10: 5,958,034 km (0.102 R)
• M11: 6,667,577 km (0.094 R)
• M12: 10,195,693 km (0.034 R)
• M13: 10,971,508 km (0.099 R)
• M14: 12,165,897 km (0.098 R)
• M15: 12,728,535 km (0.103 R)
• M16: 13,128,410 km (0.114 R)
• M17: 13,953,143 km (0.027 R)
• M18: 16,063,221 km (0.079 R)
• M19: 19,527,459 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 369.5

Radius: 8.2

Gravity: 5.5 G

Time & Orbit

Eccentricity (e): 0.14

Orbit Range: 4.63 AU - 6.13 AU

Year: 8614 Days

Day: 14.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 74,876,629 km

• M1: 102,624 km (0.07 R)
• M2: 559,047 km (0.045 R)
• M3: 866,920 km (0.091 R)
• M4: 4,095,391 km (0.077 R)
• M5: 6,221,476 km (0.065 R)
• M6: 7,901,610 km (0.116 R)
• M7: 8,618,782 km (0.084 R)
• M8: 9,291,823 km (0.068 R)
• M9: 11,472,511 km (0.106 R)
• M10: 11,773,502 km (0.117 R)
• M11: 12,079,729 km (0.034 R)
• M12: 14,259,220 km (0.101 R)
• M13: 17,401,673 km (0.119 R)
• M14: 20,977,960 km (0.039 R)
• M15: 25,778,555 km (0.111 R)
• M16: 27,797,828 km (0.067 R)
• M17: 28,892,136 km (0.077 R)
• M18: 30,875,953 km (0.113 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 10.4

Radius: 6.5

Gravity: 0.25 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 6.62 AU - 7.16 AU

Year: 12484 Days

Day: 16.4 Hours

Environment

Temp: -235 °C

Axial Tilt: 65.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 74,876,629 km

• M1: 80,932 km (0.07 R)
• M2: 642,523 km (0.084 R)
• M3: 982,858 km (0.117 R)
• M4: 1,811,481 km (0.083 R)
• M5: 2,258,928 km (0.114 R)
• M6: 2,496,190 km (0.103 R)
• M7: 6,825,552 km (0.102 R)
• M8: 8,541,440 km (0.112 R)
• M9: 9,027,035 km (0.116 R)
• M10: 10,153,507 km (0.072 R)
• M11: 10,767,905 km (0.096 R)
• M12: 12,335,840 km (0.115 R)
• M13: 12,877,534 km (0.056 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 708.4

Radius: 6.3

Gravity: 17.85 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 8.27 AU - 10.09 AU

Year: 19199 Days

Day: 22.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 74,876,629 km

• M1: 78,389 km (0.092 R)
• M2: 396,285 km (0.118 R)
• M3: 3,230,716 km (0.107 R)
• M4: 4,758,559 km (0.05 R)
• M5: 5,983,915 km (0.055 R)
• M6: 9,654,299 km (0.11 R)
• M7: 14,150,313 km (0.069 R)
• M8: 15,284,714 km (0.092 R)
• M9: 19,503,074 km (0.117 R)
• M10: 29,176,222 km (0.108 R)
• M11: 33,960,811 km (0.059 R)
• M12: 34,226,198 km (0.103 R)
• M13: 38,807,483 km (0.113 R)
• M14: 48,657,007 km (0.117 R)
• M15: 57,566,457 km (0.071 R)
• M16: 64,411,308 km (0.087 R)
• M17: 68,556,067 km (0.106 R)
• M18: 72,875,256 km (0.082 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 520 - 12,995 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit