🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 783.9

Radius: 8.3

Gravity: 11.38 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.61 AU - 0.77 AU

Year: 370 Days

Day: 7.6 Hours

Environment

Temp: -143 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 39,471,654 km

• M1: 103,223 km (0.092 R)
• M2: 427,401 km (0.081 R)
• M3: 765,941 km (0.065 R)
• M4: 1,052,571 km (0.05 R)
• M5: 1,424,621 km (0.105 R)
• M6: 1,688,661 km (0.087 R)
• M7: 2,202,978 km (0.103 R)
• M8: 3,149,334 km (0.09 R)
• M9: 3,814,447 km (0.076 R)
• M10: 4,541,343 km (0.108 R)
• M11: 5,029,181 km (0.068 R)
• M12: 5,293,820 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 213.8

Radius: 10.9

Gravity: 1.8 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.65 AU - 0.89 AU

Year: 436 Days

Day: 6.8 Hours

Environment

Temp: -151 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 39,471,654 km

• M1: 135,536 km (0.097 R)
• M2: 476,320 km (0.117 R)
• M3: 864,227 km (0.077 R)
• M4: 1,398,142 km (0.076 R)
• M5: 2,370,079 km (0.074 R)
• M6: 3,031,302 km (0.114 R)
• M7: 3,948,187 km (0.065 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 134.3

Radius: 10.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.91 AU - 1.45 AU

Year: 828 Days

Day: 6 Hours

Environment

Temp: -168 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 39,471,654 km

• M1: 130,898 km (0.098 R)
• M2: 496,515 km (0.064 R)
• M3: 1,121,386 km (0.081 R)
• M4: 1,968,858 km (0.067 R)
• M5: 2,341,506 km (0.084 R)
• M6: 2,801,220 km (0.056 R)
• M7: 3,187,631 km (0.106 R)
• M8: 3,633,433 km (0.087 R)
• M9: 4,594,749 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 19.5

Radius: 10.9

Gravity: 0.16 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 2.58 AU - 2.64 AU

Year: 2723 Days

Day: 9.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 39,471,654 km

• M1: 135,685 km (0.113 R)
• M2: 1,364,183 km (0.032 R)
• M3: 1,719,029 km (0.116 R)
• M4: 2,417,352 km (0.12 R)
• M5: 5,388,814 km (0.085 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 379.2

Radius: 14.7

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 3.26 AU - 3.56 AU

Year: 4066 Days

Day: 10.2 Hours

Environment

Temp: -211 °C

Axial Tilt: 140.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 39,471,654 km

• M1: 184,753 km (0.118 R)
• M2: 766,839 km (0.108 R)
• M3: 1,735,784 km (0.099 R)
• M4: 2,226,914 km (0.05 R)
• M5: 3,425,791 km (0.104 R)
• M6: 3,923,952 km (0.061 R)
• M7: 4,878,686 km (0.112 R)
• M8: 5,461,968 km (0.099 R)
• M9: 6,010,394 km (0.114 R)
• M10: 11,107,492 km (0.096 R)
• M11: 13,996,377 km (0.106 R)
• M12: 14,778,175 km (0.036 R)
• M13: 16,269,217 km (0.055 R)
• M14: 18,314,519 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 330.3

Radius: 12.4

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 3.34 AU - 3.64 AU

Year: 4210 Days

Day: 6.7 Hours

Environment

Temp: -213 °C

Axial Tilt: 20.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 39,471,654 km

• M1: 154,235 km (0.088 R)
• M2: 654,790 km (0.058 R)
• M3: 1,091,915 km (0.116 R)
• M4: 2,400,298 km (0.097 R)
• M5: 3,756,552 km (0.119 R)
• M6: 4,222,400 km (0.067 R)
• M7: 4,749,433 km (0.112 R)
• M8: 5,173,394 km (0.11 R)
• M9: 6,207,115 km (0.097 R)
• M10: 7,560,826 km (0.114 R)
• M11: 9,209,993 km (0.089 R)
• M12: 10,253,887 km (0.08 R)
• M13: 10,965,524 km (0.105 R)
• M14: 14,681,535 km (0.062 R)
• M15: 16,209,677 km (0.071 R)
• M16: 17,451,040 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 889.4

Radius: 8.4

Gravity: 12.6 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 4.23 AU - 5.15 AU

Year: 6558 Days

Day: 9.3 Hours

Environment

Temp: -205 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 39,471,654 km

• M1: 104,419 km (0.094 R)
• M2: 424,110 km (0.094 R)
• M3: 742,005 km (0.054 R)
• M4: 1,115,103 km (0.065 R)
• M5: 1,707,061 km (0.104 R)
• M6: 2,050,388 km (0.08 R)
• M7: 2,403,888 km (0.067 R)
• M8: 4,679,421 km (0.107 R)
• M9: 5,544,546 km (0.089 R)
• M10: 6,234,790 km (0.069 R)
• M11: 6,690,017 km (0.079 R)
• M12: 7,394,922 km (0.109 R)
• M13: 9,532,227 km (0.061 R)
• M14: 9,808,085 km (0.076 R)
• M15: 12,924,807 km (0.099 R)
• M16: 14,859,556 km (0.108 R)
• M17: 15,545,164 km (0.062 R)
• M18: 17,798,257 km (0.109 R)
• M19: 18,146,970 km (0.086 R)
• M20: 19,884,848 km (0.087 R)
• M21: 21,181,114 km (0.1 R)
• M22: 22,695,643 km (0.094 R)
• M23: 24,796,445 km (0.039 R)
• M24: 26,932,105 km (0.107 R)
• M25: 27,670,370 km (0.097 R)
• M26: 29,187,442 km (0.108 R)
• M27: 32,283,220 km (0.114 R)
• M28: 34,716,729 km (0.103 R)
• M29: 35,152,208 km (0.091 R)
• M30: 36,817,382 km (0.112 R)
• M31: 39,001,062 km (0.075 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: 338 - 18,218 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit