🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.46 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 143.4

Radius: 10.4

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.87 AU - 0.97 AU

Year: 588 Days

Day: 5.4 Hours

Environment

Temp: -181 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 27,981,388 km

• M1: 129,402 km (0.086 R)
• M2: 535,860 km (0.062 R)
• M3: 1,168,659 km (0.071 R)
• M4: 1,649,616 km (0.118 R)
• M5: 2,259,676 km (0.116 R)
• M6: 2,694,258 km (0.11 R)
• M7: 3,194,363 km (0.067 R)
• M8: 3,870,845 km (0.093 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 820.7

Radius: 9.6

Gravity: 8.91 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.72 AU - 1.12 AU

Year: 588 Days

Day: 11.1 Hours

Environment

Temp: -179 °C

Axial Tilt: 26.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 27,981,388 km

• M1: 119,379 km (0.047 R)
• M2: 447,298 km (0.117 R)
• M3: 843,134 km (0.117 R)
• M4: 1,210,396 km (0.094 R)
• M5: 1,576,014 km (0.108 R)
• M6: 2,844,753 km (0.031 R)
• M7: 3,179,553 km (0.11 R)
• M8: 3,514,054 km (0.115 R)
• M9: 3,815,494 km (0.036 R)
• M10: 5,269,136 km (0.112 R)
• M11: 6,140,245 km (0.119 R)
• M12: 6,498,232 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 330.5

Radius: 8.5

Gravity: 4.57 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.72 AU - 1.2 AU

Year: 627 Days

Day: 7.6 Hours

Environment

Temp: -174 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 27,981,388 km

• M1: 106,364 km (0.099 R)
• M2: 375,491 km (0.117 R)
• M3: 691,741 km (0.066 R)
• M4: 1,091,466 km (0.055 R)
• M5: 1,461,571 km (0.059 R)
• M6: 1,820,008 km (0.036 R)
• M7: 2,157,052 km (0.049 R)
• M8: 2,448,768 km (0.099 R)
• M9: 3,090,243 km (0.106 R)
• M10: 3,597,829 km (0.071 R)
• M11: 4,132,641 km (0.095 R)
• M12: 4,644,864 km (0.097 R)
• M13: 5,009,434 km (0.027 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 874.8

Radius: 13.7

Gravity: 4.66 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 0.84 AU - 1.38 AU

Year: 780 Days

Day: 13.3 Hours

Environment

Temp: -184 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 27,981,388 km

• M1: 170,691 km (0.105 R)
• M2: 646,412 km (0.036 R)
• M3: 1,119,890 km (0.041 R)
• M4: 1,574,069 km (0.093 R)
• M5: 2,153,910 km (0.111 R)
• M6: 2,911,773 km (0.12 R)
• M7: 3,340,520 km (0.044 R)
• M8: 3,767,174 km (0.079 R)
• M9: 4,714,427 km (0.103 R)
• M10: 5,578,056 km (0.098 R)
• M11: 6,436,897 km (0.073 R)
• M12: 6,943,585 km (0.119 R)
• M13: 7,620,516 km (0.095 R)
• M14: 8,944,307 km (0.084 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 581.8

Radius: 14.9

Gravity: 2.62 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 2.03 AU - 2.43 AU

Year: 2221 Days

Day: 9.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 27,981,388 km

• M1: 185,801 km (0.093 R)
• M2: 766,240 km (0.088 R)
• M3: 1,829,732 km (0.074 R)
• M4: 2,691,864 km (0.079 R)
• M5: 3,169,979 km (0.113 R)
• M6: 3,705,390 km (0.083 R)
• M7: 4,561,389 km (0.078 R)
• M8: 5,048,031 km (0.049 R)
• M9: 6,076,965 km (0.111 R)
• M10: 6,909,926 km (0.104 R)
• M11: 7,700,251 km (0.094 R)
• M12: 9,030,924 km (0.097 R)
• M13: 10,294,428 km (0.113 R)
• M14: 11,711,718 km (0.069 R)
• M15: 14,076,860 km (0.119 R)
• M16: 15,442,390 km (0.1 R)
• M17: 16,109,148 km (0.096 R)
• M18: 16,646,353 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 174.9

Radius: 10.9

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 2.21 AU - 2.89 AU

Year: 2715 Days

Day: 9.7 Hours

Environment

Temp: -216 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 27,981,388 km

• M1: 135,536 km (0.076 R)
• M2: 622,776 km (0.095 R)
• M3: 979,866 km (0.078 R)
• M4: 1,809,087 km (0.113 R)
• M5: 3,245,227 km (0.113 R)
• M6: 4,208,338 km (0.071 R)
• M7: 4,669,997 km (0.106 R)
• M8: 5,828,034 km (0.098 R)
• M9: 7,271,205 km (0.099 R)
• M10: 8,616,239 km (0.102 R)
• M11: 8,969,589 km (0.115 R)
• M12: 9,486,749 km (0.117 R)
• M13: 10,614,119 km (0.077 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 49.2

Radius: 4.1

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 6.46 AU - 10.62 AU

Year: 16642 Days

Day: 22.4 Hours

Environment

Temp: -239 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 27,981,388 km

• M1: 51,013 km (0.107 R)
• M2: 377,735 km (0.06 R)
• M3: 588,668 km (0.11 R)
• M4: 923,916 km (0.105 R)
• M5: 1,168,210 km (0.107 R)
• M6: 1,512,135 km (0.114 R)
• M7: 3,178,656 km (0.088 R)
• M8: 4,328,016 km (0.11 R)
• M9: 9,266,391 km (0.079 R)
• M10: 11,231,958 km (0.116 R)
• M11: 11,787,115 km (0.077 R)
• M12: 16,311,553 km (0.089 R)
• M13: 20,822,228 km (0.096 R)
• M14: 24,762,038 km (0.107 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 371 - 17,732 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit