🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

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: 2.71

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.54 AU - 0.66 AU

Year: 300 Days

Day: 22.2 Hours

Environment

Temp: -138 °C

Axial Tilt: 4.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 808.8

Radius: 13.3

Gravity: 4.57 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.58 AU - 0.84 AU

Year: 386 Days

Day: 7.2 Hours

Environment

Temp: -141 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 48,919,131 km

• M1: 165,455 km (0.102 R)
• M2: 615,595 km (0.08 R)
• M3: 1,045,988 km (0.075 R)
• M4: 1,584,989 km (0.078 R)
• M5: 2,135,958 km (0.089 R)
• M6: 2,576,075 km (0.064 R)
• M7: 3,288,909 km (0.052 R)
• M8: 3,920,063 km (0.066 R)
• M9: 4,573,207 km (0.094 R)
• M10: 5,282,301 km (0.072 R)
• M11: 5,721,969 km (0.065 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 778.2

Radius: 13.6

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.56 AU - 2.1 AU

Year: 1598 Days

Day: 7.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 48,919,131 km

• M1: 169,195 km (0.107 R)
• M2: 611,406 km (0.1 R)
• M3: 1,187,508 km (0.118 R)
• M4: 1,710,053 km (0.043 R)
• M5: 2,204,773 km (0.093 R)
• M6: 3,425,791 km (0.096 R)
• M7: 3,968,532 km (0.119 R)
• M8: 4,568,420 km (0.084 R)
• M9: 6,141,890 km (0.11 R)
• M10: 6,921,145 km (0.051 R)
• M11: 7,348,696 km (0.087 R)
• M12: 8,345,766 km (0.083 R)
• M13: 10,365,636 km (0.073 R)
• M14: 12,148,394 km (0.1 R)
• M15: 14,600,154 km (0.062 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 351

Radius: 11

Gravity: 2.9 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 2.16 AU - 2.66 AU

Year: 2416 Days

Day: 7.5 Hours

Environment

Temp: -205 °C

Axial Tilt: 10 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 48,919,131 km

• M1: 136,882 km (0.039 R)
• M2: 530,773 km (0.106 R)
• M3: 952,041 km (0.111 R)
• M4: 1,946,418 km (0.075 R)
• M5: 3,352,787 km (0.075 R)
• M6: 4,279,097 km (0.081 R)
• M7: 5,390,460 km (0.12 R)
• M8: 7,883,957 km (0.027 R)
• M9: 11,026,709 km (0.118 R)
• M10: 13,507,341 km (0.083 R)
• M11: 14,181,280 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921.5

Radius: 12.7

Gravity: 5.71 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 3.73 AU - 6.11 AU

Year: 7046 Days

Day: 12.3 Hours

Environment

Temp: -214 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 48,919,131 km

• M1: 157,975 km (0.119 R)
• M2: 866,471 km (0.05 R)
• M3: 1,377,497 km (0.118 R)
• M4: 2,359,158 km (0.117 R)
• M5: 2,992,855 km (0.053 R)
• M6: 3,499,842 km (0.104 R)
• M7: 4,491,676 km (0.065 R)
• M8: 5,008,986 km (0.11 R)
• M9: 5,760,416 km (0.099 R)
• M10: 6,267,403 km (0.116 R)
• M11: 7,888,146 km (0.102 R)
• M12: 10,348,732 km (0.065 R)
• M13: 11,834,239 km (0.095 R)
• M14: 12,544,380 km (0.072 R)
• M15: 13,052,564 km (0.062 R)
• M16: 14,660,143 km (0.117 R)
• M17: 17,348,416 km (0.113 R)
• M18: 22,341,245 km (0.087 R)
• M19: 26,431,101 km (0.056 R)
• M20: 27,455,847 km (0.045 R)
• M21: 30,284,294 km (0.111 R)
• M22: 33,194,571 km (0.039 R)
• M23: 37,319,582 km (0.115 R)
• M24: 39,324,792 km (0.115 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 565.4

Radius: 5.4

Gravity: 19.39 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 6.37 AU - 7.15 AU

Year: 11348 Days

Day: 19.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 48,919,131 km

• M1: 67,618 km (0.086 R)
• M2: 342,729 km (0.071 R)
• M3: 742,454 km (0.116 R)
• M4: 1,105,379 km (0.073 R)
• M5: 1,308,533 km (0.056 R)
• M6: 3,009,760 km (0.076 R)
• M7: 3,288,460 km (0.093 R)
• M8: 4,172,135 km (0.071 R)
• M9: 4,638,581 km (0.114 R)
• M10: 5,369,068 km (0.081 R)
• M11: 5,779,415 km (0.063 R)
• M12: 6,210,406 km (0.088 R)
• M13: 7,422,747 km (0.107 R)
• M14: 8,062,577 km (0.077 R)
• M15: 10,885,190 km (0.095 R)
• M16: 13,237,018 km (0.086 R)
• M17: 16,396,226 km (0.078 R)
• M18: 17,404,515 km (0.09 R)
• M19: 21,427,501 km (0.117 R)
• M20: 24,244,729 km (0.05 R)
• M21: 25,173,282 km (0.081 R)
• M22: 27,498,333 km (0.062 R)
• M23: 31,466,117 km (0.094 R)
• M24: 32,125,544 km (0.096 R)
• M25: 36,037,529 km (0.045 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 353 - 14,828 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit