🌌 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: 467.9

Radius: 10.2

Gravity: 4.5 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.48 AU - 0.62 AU

Year: 277 Days

Day: 14.8 Hours

Environment

Temp: -155 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 21,698,410 km

• M1: 127,158 km (0.089 R)
• M2: 480,957 km (0.103 R)
• M3: 847,921 km (0.077 R)
• M4: 1,364,333 km (0.118 R)
• M5: 1,871,918 km (0.065 R)
• M6: 2,201,033 km (0.118 R)
• M7: 2,706,674 km (0.074 R)
• M8: 3,772,410 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 602.2

Radius: 8

Gravity: 9.41 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 0.76 AU - 1.02 AU

Year: 569 Days

Day: 5.4 Hours

Environment

Temp: -172 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 21,698,410 km

• M1: 100,679 km (0.052 R)
• M2: 360,381 km (0.09 R)
• M3: 858,841 km (0.11 R)
• M4: 1,201,570 km (0.104 R)
• M5: 1,642,136 km (0.075 R)
• M6: 2,077,914 km (0.1 R)
• M7: 2,486,466 km (0.105 R)
• M8: 3,192,867 km (0.084 R)
• M9: 3,738,301 km (0.088 R)
• M10: 5,469,149 km (0.081 R)
• M11: 6,326,045 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 29.3

Radius: 12.5

Gravity: 0.19 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.85 AU - 1.23 AU

Year: 719 Days

Day: 5 Hours

Environment

Temp: -180 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 21,698,410 km

• M1: 155,432 km (0.099 R)
• M2: 868,116 km (0.115 R)
• M3: 1,294,620 km (0.071 R)
• M4: 1,776,026 km (0.089 R)
• M5: 2,320,113 km (0.074 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 120.9

Radius: 9.4

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 0.94 AU - 1.28 AU

Year: 793 Days

Day: 10.9 Hours

Environment

Temp: -181 °C

Axial Tilt: 26 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 21,698,410 km

• M1: 123,418 km (0.11 R)
• M2: 424,708 km (0.113 R)
• M3: 1,047,933 km (0.103 R)
• M4: 1,614,161 km (0.12 R)
• M5: 2,096,913 km (0.034 R)
• M6: 2,579,815 km (0.096 R)
• M7: 3,793,353 km (0.035 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 528.9

Radius: 8.7

Gravity: 6.99 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 2.68 AU - 2.72 AU

Year: 3009 Days

Day: 12.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 21,698,410 km

• M1: 110,702 km (0.111 R)
• M2: 390,002 km (0.089 R)
• M3: 866,471 km (0.073 R)
• M4: 1,403,078 km (0.07 R)
• M5: 1,827,039 km (0.035 R)
• M6: 2,239,480 km (0.118 R)
• M7: 2,728,516 km (0.096 R)
• M8: 3,861,121 km (0.057 R)
• M9: 7,346,901 km (0.077 R)
• M10: 8,359,978 km (0.115 R)
• M11: 11,914,872 km (0.116 R)
• M12: 13,674,293 km (0.116 R)
• M13: 17,810,524 km (0.062 R)
• M14: 18,086,831 km (0.058 R)
• M15: 19,220,783 km (0.058 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 483.2

Radius: 12.7

Gravity: 3 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 2.49 AU - 3.95 AU

Year: 3919 Days

Day: 10.3 Hours

Environment

Temp: -216 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 21,698,410 km

• M1: 158,424 km (0.117 R)
• M2: 740,509 km (0.116 R)
• M3: 1,403,078 km (0.096 R)
• M4: 2,239,630 km (0.117 R)
• M5: 3,221,590 km (0.108 R)
• M6: 3,731,270 km (0.109 R)
• M7: 4,164,506 km (0.093 R)
• M8: 5,410,656 km (0.118 R)
• M9: 6,922,043 km (0.106 R)
• M10: 12,173,078 km (0.115 R)
• M11: 15,412,321 km (0.118 R)
• M12: 15,834,187 km (0.04 R)
• M13: 18,885,983 km (0.085 R)
• M14: 20,868,753 km (0.053 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 113.2

Radius: 9.9

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 4.81 AU - 5.11 AU

Year: 7492 Days

Day: 5.7 Hours

Environment

Temp: -219 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 21,698,410 km

• M1: 123,269 km (0.106 R)
• M2: 464,352 km (0.056 R)
• M3: 1,588,430 km (0.111 R)
• M4: 1,998,777 km (0.084 R)
• M5: 2,334,624 km (0.072 R)
• M6: 4,160,915 km (0.042 R)
• M7: 5,647,469 km (0.026 R)
• M8: 7,651,033 km (0.11 R)
• M9: 8,009,470 km (0.087 R)
• M10: 8,379,126 km (0.073 R)
• M11: 9,188,900 km (0.088 R)
• M12: 9,556,761 km (0.106 R)
• M13: 10,088,581 km (0.109 R)
• M14: 12,504,288 km (0.06 R)
• M15: 15,956,558 km (0.038 R)
• M16: 17,815,461 km (0.118 R)
• M17: 18,157,890 km (0.072 R)
• M18: 18,973,947 km (0.064 R)
• M19: 19,331,037 km (0.076 R)
• M20: 21,184,704 km (0.12 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 447 - 11,070 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit