🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.8

Radius: 14.6

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.42 AU - 0.68 AU

Year: 287 Days

Day: 10.2 Hours

Environment

Temp: -142 °C

Axial Tilt: 15 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 29,956,846 km

• M1: 182,210 km (0.049 R)
• M2: 751,131 km (0.079 R)
• M3: 1,366,427 km (0.108 R)
• M4: 2,127,431 km (0.059 R)
• M5: 2,848,942 km (0.038 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 370.1

Radius: 10.9

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 1.17 AU - 1.51 AU

Year: 1090 Days

Day: 6.7 Hours

Environment

Temp: -196 °C

Axial Tilt: 0 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 29,956,846 km

• M1: 161,267 km (0.116 R)
• M2: 502,200 km (0.118 R)
• M3: 1,709,754 km (0.083 R)
• M4: 2,247,110 km (0.095 R)
• M5: 3,369,842 km (0.061 R)
• M6: 4,678,823 km (0.079 R)
• M7: 5,207,352 km (0.082 R)
• M8: 6,660,995 km (0.119 R)
• M9: 8,675,330 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 286.2

Radius: 13.9

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.26 AU - 1.54 AU

Year: 1164 Days

Day: 11.3 Hours

Environment

Temp: -198 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 29,956,846 km

• M1: 172,935 km (0.102 R)
• M2: 635,941 km (0.073 R)
• M3: 1,075,758 km (0.113 R)
• M4: 2,747,514 km (0.082 R)
• M5: 3,634,480 km (0.11 R)
• M6: 4,331,906 km (0.073 R)
• M7: 4,977,121 km (0.07 R)
• M8: 5,742,913 km (0.092 R)
• M9: 6,565,103 km (0.076 R)
• M10: 7,193,114 km (0.094 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 166.1

Radius: 14.6

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 2.49 AU - 2.69 AU

Year: 2930 Days

Day: 10.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 29,956,846 km

• M1: 181,911 km (0.036 R)
• M2: 935,286 km (0.112 R)
• M3: 1,480,570 km (0.091 R)
• M4: 2,041,861 km (0.088 R)
• M5: 2,893,223 km (0.101 R)
• M6: 3,606,505 km (0.056 R)
• M7: 5,822,648 km (0.092 R)
• M8: 7,351,539 km (0.074 R)
• M9: 8,539,645 km (0.064 R)
• M10: 10,407,075 km (0.088 R)
• M11: 11,120,956 km (0.107 R)
• M12: 11,650,682 km (0.057 R)
• M13: 12,875,889 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136.2

Radius: 11.3

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 3.15 AU - 3.95 AU

Year: 4702 Days

Day: 13.3 Hours

Environment

Temp: -219 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 29,956,846 km

• M1: 140,472 km (0.116 R)
• M2: 516,711 km (0.111 R)
• M3: 1,279,810 km (0.072 R)
• M4: 2,090,032 km (0.097 R)
• M5: 2,540,321 km (0.106 R)
• M6: 4,004,735 km (0.091 R)
• M7: 4,683,909 km (0.111 R)
• M8: 5,051,621 km (0.086 R)
• M9: 6,720,236 km (0.047 R)
• M10: 10,370,124 km (0.066 R)
• M11: 10,810,690 km (0.114 R)
• M12: 11,611,488 km (0.106 R)
• M13: 13,203,358 km (0.112 R)
• M14: 16,467,135 km (0.068 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 621.9

Radius: 9.1

Gravity: 7.51 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 3.09 AU - 4.23 AU

Year: 4922 Days

Day: 6.3 Hours

Environment

Temp: -214 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 29,956,846 km

• M1: 113,246 km (0.061 R)
• M2: 558,150 km (0.101 R)
• M3: 922,869 km (0.106 R)
• M4: 1,338,303 km (0.057 R)
• M5: 1,669,811 km (0.102 R)
• M6: 2,027,650 km (0.112 R)
• M7: 2,372,772 km (0.09 R)
• M8: 3,241,038 km (0.09 R)
• M9: 4,379,627 km (0.062 R)
• M10: 5,882,936 km (0.11 R)
• M11: 7,597,627 km (0.114 R)
• M12: 8,211,876 km (0.065 R)
• M13: 9,095,401 km (0.079 R)
• M14: 11,141,301 km (0.048 R)
• M15: 11,791,753 km (0.117 R)
• M16: 12,615,289 km (0.057 R)
• M17: 14,485,113 km (0.07 R)
• M18: 15,147,383 km (0.096 R)
• M19: 16,952,132 km (0.053 R)
• M20: 17,937,533 km (0.069 R)
• M21: 21,333,853 km (0.107 R)
• M22: 23,595,175 km (0.113 R)
• M23: 24,434,718 km (0.117 R)
• M24: 25,215,020 km (0.113 R)
• M25: 26,661,333 km (0.11 R)
• M26: 27,571,935 km (0.097 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 288.4

Radius: 11.5

Gravity: 2.18 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 3.53 AU - 5.05 AU

Year: 6246 Days

Day: 14.1 Hours

Environment

Temp: -212 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 29,956,846 km

• M1: 157,377 km (0.117 R)
• M2: 607,218 km (0.112 R)
• M3: 990,488 km (0.104 R)
• M4: 3,066,457 km (0.056 R)
• M5: 5,614,707 km (0.058 R)
• M6: 6,764,666 km (0.104 R)
• M7: 7,820,528 km (0.073 R)
• M8: 8,461,106 km (0.091 R)
• M9: 9,566,185 km (0.072 R)
• M10: 13,660,829 km (0.107 R)
• M11: 17,752,929 km (0.063 R)
• M12: 20,738,603 km (0.069 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 614.3

Radius: 9.9

Gravity: 6.27 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 4.3 AU - 4.9 AU

Year: 6935 Days

Day: 9.3 Hours

Environment

Temp: -215 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 29,956,846 km

• M1: 134,488 km (0.072 R)
• M2: 467,045 km (0.111 R)
• M3: 1,078,301 km (0.099 R)
• M4: 1,504,506 km (0.111 R)
• M5: 4,015,656 km (0.086 R)
• M6: 5,774,777 km (0.115 R)
• M7: 6,667,427 km (0.1 R)
• M8: 8,518,552 km (0.103 R)
• M9: 8,892,546 km (0.117 R)
• M10: 11,124,846 km (0.066 R)
• M11: 11,572,143 km (0.114 R)
• M12: 12,662,562 km (0.065 R)
• M13: 12,986,442 km (0.062 R)
• M14: 16,344,914 km (0.082 R)
• M15: 16,793,857 km (0.108 R)
• M16: 17,250,729 km (0.064 R)
• M17: 17,918,085 km (0.066 R)
• M18: 18,671,759 km (0.067 R)
• M19: 24,136,719 km (0.114 R)
• M20: 25,481,454 km (0.11 R)
• M21: 27,862,753 km (0.068 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 67.1

Radius: 5.6

Gravity: 2.14 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 6.87 AU - 9.05 AU

Year: 15786 Days

Day: 23.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 29,956,846 km

• M1: 69,713 km (0.085 R)
• M2: 383,569 km (0.055 R)
• M3: 1,223,711 km (0.118 R)
• M4: 1,608,177 km (0.063 R)
• M5: 2,615,569 km (0.063 R)
• M6: 2,903,545 km (0.047 R)
• M7: 3,313,294 km (0.074 R)
• M8: 3,629,095 km (0.053 R)
• M9: 4,345,220 km (0.117 R)
• M10: 4,988,042 km (0.118 R)
• M11: 6,053,179 km (0.079 R)
• M12: 9,220,614 km (0.101 R)
• M13: 11,411,924 km (0.106 R)
• M14: 14,582,501 km (0.053 R)
• M15: 14,805,252 km (0.034 R)
• M16: 17,469,441 km (0.026 R)
• M17: 20,298,337 km (0.082 R)
• M18: 28,285,367 km (0.118 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 444 - 16,989 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit