🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.95

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 0.47 AU - 0.73 AU

Year: 300 Days

Day: 17.4 Hours

Environment

Temp: -138 °C

Axial Tilt: 3.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.18

Radius: 1.37

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.57 AU - 0.69 AU

Year: 323 Days

Day: 46.5 Hours

Environment

Temp: -136 °C

Axial Tilt: 38.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 328.5

Radius: 10.2

Gravity: 3.16 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 0.74 AU - 0.95 AU

Year: 497 Days

Day: 7.1 Hours

Environment

Temp: -151 °C

Axial Tilt: 38 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 46,366,902 km

• M1: 126,859 km (0.105 R)
• M2: 487,988 km (0.112 R)
• M3: 1,369,269 km (0.061 R)
• M4: 1,837,660 km (0.058 R)
• M5: 2,546,605 km (0.086 R)
• M6: 2,934,213 km (0.114 R)
• M7: 3,439,853 km (0.119 R)
• M8: 3,952,675 km (0.111 R)
• M9: 5,042,645 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 372.3

Radius: 9.3

Gravity: 4.3 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 0.72 AU - 1.1 AU

Year: 561 Days

Day: 7.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 46,366,902 km

• M1: 116,836 km (0.088 R)
• M2: 458,966 km (0.09 R)
• M3: 1,193,941 km (0.064 R)
• M4: 1,532,630 km (0.111 R)
• M5: 2,464,924 km (0.087 R)
• M6: 3,022,176 km (0.115 R)
• M7: 3,514,503 km (0.091 R)
• M8: 4,317,993 km (0.071 R)
• M9: 5,382,831 km (0.064 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 682.1

Radius: 10.7

Gravity: 5.96 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 1.05 AU - 1.69 AU

Year: 1035 Days

Day: 5 Hours

Environment

Temp: -168 °C

Axial Tilt: 27.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 46,366,902 km

• M1: 133,142 km (0.113 R)
• M2: 528,380 km (0.115 R)
• M3: 967,449 km (0.115 R)
• M4: 1,483,113 km (0.069 R)
• M5: 2,124,589 km (0.074 R)
• M6: 3,021,428 km (0.038 R)
• M7: 3,586,310 km (0.119 R)
• M8: 4,203,700 km (0.096 R)
• M9: 5,468,550 km (0.061 R)
• M10: 6,287,599 km (0.104 R)
• M11: 6,830,938 km (0.051 R)
• M12: 7,356,326 km (0.108 R)
• M13: 8,089,954 km (0.092 R)
• M14: 8,678,472 km (0.117 R)
• M15: 9,295,264 km (0.081 R)
• M16: 9,643,976 km (0.105 R)
• M17: 10,522,714 km (0.083 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 954.9

Radius: 11.5

Gravity: 7.22 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 1.76 AU - 1.76 AU

Year: 1508 Days

Day: 11.1 Hours

Environment

Temp: -182 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 46,366,902 km

• M1: 143,315 km (0.094 R)
• M2: 520,900 km (0.097 R)
• M3: 1,240,316 km (0.119 R)
• M4: 2,112,621 km (0.079 R)
• M5: 2,521,921 km (0.116 R)
• M6: 3,811,155 km (0.105 R)
• M7: 5,385,224 km (0.07 R)
• M8: 6,280,717 km (0.068 R)
• M9: 6,869,385 km (0.104 R)
• M10: 7,272,850 km (0.105 R)
• M11: 9,047,978 km (0.108 R)
• M12: 9,533,723 km (0.07 R)
• M13: 11,279,380 km (0.119 R)
• M14: 11,652,627 km (0.11 R)
• M15: 12,150,189 km (0.067 R)
• M16: 13,106,120 km (0.118 R)
• M17: 13,477,272 km (0.118 R)
• M18: 13,940,427 km (0.111 R)
• M19: 14,501,419 km (0.07 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 632.5

Radius: 10.3

Gravity: 5.96 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 1.88 AU - 2.22 AU

Year: 1895 Days

Day: 13.9 Hours

Environment

Temp: -195 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 46,366,902 km

• M1: 128,056 km (0.061 R)
• M2: 459,714 km (0.118 R)
• M3: 959,521 km (0.114 R)
• M4: 1,359,396 km (0.103 R)
• M5: 1,924,876 km (0.085 R)
• M6: 2,641,300 km (0.119 R)
• M7: 5,411,404 km (0.025 R)
• M8: 5,733,787 km (0.077 R)
• M9: 6,093,570 km (0.057 R)
• M10: 6,519,475 km (0.077 R)
• M11: 10,012,286 km (0.095 R)
• M12: 10,930,668 km (0.072 R)
• M13: 12,491,572 km (0.116 R)
• M14: 13,387,962 km (0.095 R)
• M15: 14,023,304 km (0.097 R)
• M16: 14,370,222 km (0.036 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.65 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 332.2

Radius: 7.2

Gravity: 6.41 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 6.29 AU - 9.01 AU

Year: 13662 Days

Day: 15.7 Hours

Environment

Temp: -217 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 46,366,902 km

• M1: 89,609 km (0.064 R)
• M2: 387,309 km (0.087 R)
• M3: 821,292 km (0.119 R)
• M4: 2,195,199 km (0.112 R)
• M5: 3,255,698 km (0.118 R)
• M6: 10,854,074 km (0.08 R)
• M7: 12,507,429 km (0.114 R)
• M8: 15,827,006 km (0.06 R)
• M9: 16,582,774 km (0.066 R)
• M10: 17,290,671 km (0.085 R)
• M11: 17,797,958 km (0.106 R)
• M12: 24,140,758 km (0.03 R)
• M13: 31,198,187 km (0.108 R)
• M14: 32,713,614 km (0.087 R)
• M15: 36,953,965 km (0.116 R)
• M16: 40,777,388 km (0.074 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: 270 - 19,468 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit