🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 147.4

Radius: 12.4

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.53 AU - 0.55 AU

Year: 274 Days

Day: 5.3 Hours

Environment

Temp: -149 °C

Axial Tilt: 37 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 28,359,930 km

• M1: 154,385 km (0.077 R)
• M2: 684,709 km (0.058 R)
• M3: 1,194,389 km (0.092 R)
• M4: 2,472,703 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 769.1

Radius: 10.4

Gravity: 7.11 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.8 AU - 0.86 AU

Year: 522 Days

Day: 8.1 Hours

Environment

Temp: -157 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 28,359,930 km

• M1: 129,402 km (0.065 R)
• M2: 501,153 km (0.097 R)
• M3: 865,872 km (0.074 R)
• M4: 1,393,953 km (0.117 R)
• M5: 1,772,585 km (0.05 R)
• M6: 2,796,732 km (0.087 R)
• M7: 3,496,102 km (0.1 R)
• M8: 4,308,119 km (0.069 R)
• M9: 4,782,794 km (0.107 R)
• M10: 5,174,142 km (0.098 R)
• M11: 5,947,114 km (0.114 R)
• M12: 6,419,693 km (0.104 R)
• M13: 6,856,070 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 511.5

Radius: 12.2

Gravity: 3.44 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 1.19 AU - 1.19 AU

Year: 896 Days

Day: 11.1 Hours

Environment

Temp: -180 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 28,359,930 km

• M1: 151,692 km (0.085 R)
• M2: 667,057 km (0.116 R)
• M3: 1,097,899 km (0.073 R)
• M4: 1,662,332 km (0.062 R)
• M5: 2,913,867 km (0.059 R)
• M6: 3,425,791 km (0.092 R)
• M7: 4,073,101 km (0.108 R)
• M8: 4,466,992 km (0.102 R)
• M9: 5,555,915 km (0.042 R)
• M10: 6,389,026 km (0.107 R)
• M11: 6,792,491 km (0.081 R)
• M12: 7,840,424 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 191.7

Radius: 8

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.39 AU - 1.71 AU

Year: 1332 Days

Day: 14.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 22.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 28,359,930 km

• M1: 99,782 km (0.099 R)
• M2: 644,168 km (0.118 R)
• M3: 1,049,878 km (0.078 R)
• M4: 1,357,451 km (0.079 R)
• M5: 4,602,528 km (0.067 R)
• M6: 7,866,454 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 77

Radius: 12.6

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 1.63 AU - 1.97 AU

Year: 1667 Days

Day: 6.9 Hours

Environment

Temp: -202 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 28,359,930 km

• M1: 157,975 km (0.104 R)
• M2: 881,580 km (0.115 R)
• M3: 1,696,290 km (0.064 R)
• M4: 2,153,013 km (0.062 R)
• M5: 2,618,711 km (0.063 R)
• M6: 3,892,237 km (0.072 R)
• M7: 4,289,719 km (0.086 R)
• M8: 5,100,539 km (0.098 R)
• M9: 6,104,192 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 442.9

Radius: 11.7

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 3.51 AU - 4.89 AU

Year: 5941 Days

Day: 7.9 Hours

Environment

Temp: -212 °C

Axial Tilt: 159.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 28,359,930 km

• M1: 145,708 km (0.087 R)
• M2: 528,679 km (0.117 R)
• M3: 901,477 km (0.091 R)
• M4: 1,384,528 km (0.064 R)
• M5: 2,198,790 km (0.103 R)
• M6: 2,578,020 km (0.029 R)
• M7: 3,001,083 km (0.12 R)
• M8: 3,491,315 km (0.1 R)
• M9: 4,915,936 km (0.112 R)
• M10: 6,192,903 km (0.099 R)
• M11: 8,336,192 km (0.102 R)
• M12: 8,833,754 km (0.103 R)
• M13: 9,269,982 km (0.114 R)
• M14: 10,799,620 km (0.103 R)
• M15: 11,766,172 km (0.11 R)
• M16: 13,556,260 km (0.111 R)
• M17: 18,814,475 km (0.091 R)
• M18: 19,538,380 km (0.116 R)
• M19: 26,665,372 km (0.095 R)
• M20: 29,205,544 km (0.091 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 481.1

Radius: 11.1

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 3.91 AU - 6.43 AU

Year: 8114 Days

Day: 12.1 Hours

Environment

Temp: -234 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 28,359,930 km

• M1: 138,228 km (0.073 R)
• M2: 623,374 km (0.054 R)
• M3: 1,115,252 km (0.025 R)
• M4: 1,993,392 km (0.086 R)
• M5: 2,835,029 km (0.077 R)
• M6: 3,923,354 km (0.095 R)
• M7: 4,922,219 km (0.109 R)
• M8: 5,512,233 km (0.048 R)
• M9: 7,121,906 km (0.059 R)
• M10: 7,493,357 km (0.072 R)
• M11: 10,467,812 km (0.113 R)
• M12: 11,046,905 km (0.036 R)
• M13: 12,696,222 km (0.117 R)
• M14: 19,836,079 km (0.093 R)
• M15: 22,103,833 km (0.112 R)
• M16: 22,816,667 km (0.106 R)
• M17: 24,539,436 km (0.107 R)
• M18: 25,389,601 km (0.052 R)
• M19: 25,996,220 km (0.085 R)
• M20: 28,242,283 km (0.117 R)
• M21: 30,129,909 km (0.084 R)
• M22: 31,500,375 km (0.094 R)
• M23: 32,302,070 km (0.078 R)
• M24: 36,845,208 km (0.089 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 241.8

Radius: 10.8

Gravity: 2.07 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 4.5 AU - 6.14 AU

Year: 8470 Days

Day: 8.4 Hours

Environment

Temp: -215 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 28,359,930 km

• M1: 134,339 km (0.111 R)
• M2: 640,877 km (0.108 R)
• M3: 982,559 km (0.106 R)
• M4: 1,428,809 km (0.087 R)
• M5: 1,966,913 km (0.032 R)
• M6: 4,629,157 km (0.118 R)
• M7: 5,436,387 km (0.119 R)
• M8: 5,814,271 km (0.09 R)
• M9: 7,225,727 km (0.091 R)
• M10: 7,755,602 km (0.103 R)
• M11: 10,578,963 km (0.052 R)
• M12: 11,782,927 km (0.038 R)
• M13: 13,179,423 km (0.065 R)
• M14: 14,572,029 km (0.094 R)
• M15: 15,883,853 km (0.056 R)
• M16: 16,358,078 km (0.107 R)
• M17: 16,964,099 km (0.106 R)
• M18: 18,479,825 km (0.045 R)
• M19: 21,132,494 km (0.073 R)
• M20: 22,070,323 km (0.085 R)
• M21: 22,885,482 km (0.108 R)
• M22: 26,845,487 km (0.087 R)
• M23: 29,874,844 km (0.1 R)

Asteroid Belt

Center: 5.99 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Ice Giant

Semi-Major Axis: 6.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 100.8

Radius: 3

Gravity: 11.2 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 5.03 AU - 8.29 AU

Year: 11864 Days

Day: 24.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 28,359,930 km

• M1: 38,895 km (0.054 R)
• M2: 171,589 km (0.094 R)
• M3: 295,905 km (0.112 R)
• M4: 535,112 km (0.091 R)
• M5: 956,678 km (0.047 R)
• M6: 1,262,008 km (0.055 R)
• M7: 1,530,835 km (0.113 R)
• M8: 1,849,927 km (0.026 R)
• M9: 2,903,395 km (0.099 R)
• M10: 6,094,019 km (0.088 R)
• M11: 6,722,330 km (0.104 R)
• M12: 7,461,942 km (0.072 R)
• M13: 13,477,871 km (0.082 R)
• M14: 17,739,764 km (0.105 R)
• M15: 20,547,118 km (0.037 R)
• M16: 23,486,567 km (0.111 R)
• M17: 25,568,071 km (0.112 R)
• M18: 25,727,094 km (0.111 R)
• M19: 25,886,565 km (0.098 R)
• M20: 27,187,019 km (0.091 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: 218 - 18,676 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit