🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 742.6

Radius: 9.8

Gravity: 7.73 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.7 AU - 0.76 AU

Year: 397 Days

Day: 13.1 Hours

Environment

Temp: -135 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 41,251,584 km

• M1: 124,914 km (0.062 R)
• M2: 480,508 km (0.045 R)
• M3: 965,654 km (0.098 R)
• M4: 1,369,120 km (0.109 R)
• M5: 1,815,071 km (0.098 R)
• M6: 2,853,729 km (0.077 R)
• M7: 3,178,057 km (0.108 R)
• M8: 3,686,540 km (0.087 R)
• M9: 5,033,819 km (0.058 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 26.5

Radius: 14

Gravity: 0.14 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 0.63 AU - 0.91 AU

Year: 430 Days

Day: 7.5 Hours

Environment

Temp: -138 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 41,251,584 km

• M1: 174,431 km (0.062 R)
• M2: 617,091 km (0.074 R)
• M3: 1,085,781 km (0.077 R)
• M4: 1,784,403 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 930.8

Radius: 14.1

Gravity: 4.68 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 0.86 AU - 1.2 AU

Year: 665 Days

Day: 9.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 41,251,584 km

• M1: 175,628 km (0.091 R)
• M2: 932,593 km (0.117 R)
• M3: 1,389,465 km (0.047 R)
• M4: 2,019,122 km (0.118 R)
• M5: 2,596,121 km (0.1 R)
• M6: 3,308,507 km (0.095 R)
• M7: 3,981,847 km (0.118 R)
• M8: 5,056,109 km (0.06 R)
• M9: 6,418,796 km (0.087 R)
• M10: 7,130,283 km (0.115 R)
• M11: 7,680,355 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 51.1

Radius: 12.6

Gravity: 0.32 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 1.17 AU - 1.23 AU

Year: 836 Days

Day: 12.2 Hours

Environment

Temp: -172 °C

Axial Tilt: 15.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 41,251,584 km

• M1: 157,975 km (0.082 R)
• M2: 563,386 km (0.115 R)
• M3: 2,016,131 km (0.11 R)
• M4: 2,469,711 km (0.077 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 175.4

Radius: 10.3

Gravity: 1.65 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.33 AU - 1.89 AU

Year: 1299 Days

Day: 13.7 Hours

Environment

Temp: -185 °C

Axial Tilt: 7.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 41,251,584 km

• M1: 129,103 km (0.035 R)
• M2: 520,152 km (0.107 R)
• M3: 895,194 km (0.07 R)
• M4: 1,505,703 km (0.11 R)
• M5: 1,984,715 km (0.056 R)
• M6: 3,367,448 km (0.109 R)
• M7: 5,236,823 km (0.082 R)
• M8: 6,690,615 km (0.094 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 659

Radius: 13.2

Gravity: 3.78 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 2.25 AU - 3.71 AU

Year: 3271 Days

Day: 6.2 Hours

Environment

Temp: -195 °C

Axial Tilt: 10.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 41,251,584 km

• M1: 255,513 km (0.107 R)
• M2: 674,986 km (0.104 R)
• M3: 1,340,098 km (0.025 R)
• M4: 1,851,872 km (0.103 R)
• M5: 2,348,836 km (0.084 R)
• M6: 6,545,954 km (0.11 R)
• M7: 7,457,753 km (0.114 R)
• M8: 8,697,022 km (0.115 R)
• M9: 9,875,853 km (0.096 R)
• M10: 10,992,302 km (0.099 R)
• M11: 13,618,193 km (0.12 R)
• M12: 14,797,473 km (0.101 R)
• M13: 20,390,190 km (0.081 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 163.2

Radius: 11.8

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 2.78 AU - 4.5 AU

Year: 4416 Days

Day: 12.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 41,251,584 km

• M1: 151,692 km (0.038 R)
• M2: 904,618 km (0.102 R)
• M3: 1,385,575 km (0.087 R)
• M4: 3,514,652 km (0.083 R)
• M5: 4,479,858 km (0.08 R)
• M6: 4,881,827 km (0.05 R)
• M7: 5,807,838 km (0.119 R)
• M8: 6,656,956 km (0.102 R)
• M9: 7,154,069 km (0.115 R)
• M10: 8,893,743 km (0.069 R)
• M11: 10,381,344 km (0.119 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 824.3

Radius: 13.4

Gravity: 4.59 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 3.5 AU - 3.82 AU

Year: 4452 Days

Day: 6.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 41,251,584 km

• M1: 166,652 km (0.103 R)
• M2: 590,762 km (0.073 R)
• M3: 1,081,742 km (0.092 R)
• M4: 1,840,353 km (0.092 R)
• M5: 2,667,480 km (0.036 R)
• M6: 3,354,583 km (0.049 R)
• M7: 3,839,429 km (0.099 R)
• M8: 4,542,539 km (0.074 R)
• M9: 5,385,523 km (0.119 R)
• M10: 5,815,468 km (0.077 R)
• M11: 8,820,290 km (0.111 R)
• M12: 9,379,188 km (0.075 R)
• M13: 10,746,213 km (0.11 R)
• M14: 11,384,548 km (0.109 R)
• M15: 11,808,059 km (0.09 R)
• M16: 12,587,165 km (0.079 R)
• M17: 13,504,349 km (0.071 R)
• M18: 14,032,879 km (0.1 R)
• M19: 17,499,510 km (0.059 R)
• M20: 17,937,981 km (0.104 R)
• M21: 22,588,830 km (0.089 R)
• M22: 23,485,669 km (0.087 R)
• M23: 24,096,627 km (0.102 R)
• M24: 28,158,209 km (0.07 R)
• M25: 29,725,845 km (0.098 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.99 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 601.1

Radius: 13.6

Gravity: 3.25 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 4.25 AU - 5.73 AU

Year: 7087 Days

Day: 8.9 Hours

Environment

Temp: -223 °C

Axial Tilt: 7.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 41,251,584 km

• M1: 169,345 km (0.065 R)
• M2: 652,546 km (0.11 R)
• M3: 1,082,490 km (0.04 R)
• M4: 1,546,543 km (0.058 R)
• M5: 2,373,071 km (0.057 R)
• M6: 2,897,860 km (0.105 R)
• M7: 4,159,718 km (0.106 R)
• M8: 4,929,250 km (0.08 R)
• M9: 7,253,552 km (0.059 R)
• M10: 8,864,721 km (0.114 R)
• M11: 10,992,302 km (0.081 R)
• M12: 14,005,951 km (0.08 R)
• M13: 16,681,210 km (0.057 R)
• M14: 19,608,840 km (0.118 R)
• M15: 20,780,790 km (0.076 R)
• M16: 27,441,037 km (0.116 R)
• M17: 28,720,547 km (0.103 R)
• M18: 30,811,177 km (0.08 R)
• M19: 34,343,632 km (0.076 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 83.4

Radius: 3.3

Gravity: 7.66 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 9.56 AU - 12.24 AU

Year: 22881 Days

Day: 23.9 Hours

Environment

Temp: -233 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 41,251,584 km

• M1: 46,525 km (0.088 R)
• M2: 154,086 km (0.081 R)
• M3: 1,098,946 km (0.058 R)
• M4: 3,072,441 km (0.104 R)
• M5: 3,648,094 km (0.116 R)
• M6: 6,897,509 km (0.09 R)
• M7: 17,636,243 km (0.034 R)
• M8: 22,350,071 km (0.091 R)
• M9: 24,119,365 km (0.069 R)
• M10: 27,084,844 km (0.114 R)
• M11: 34,818,904 km (0.077 R)
• M12: 36,047,701 km (0.102 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 214 - 18,950 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit