🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.21

Radius: 0.54

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 0.56 AU - 0.74 AU

Year: 344 Days

Day: 33 Hours

Environment

Temp: -131 °C

Axial Tilt: 34.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 966.7

Radius: 13.7

Gravity: 5.15 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.82 AU - 0.88 AU

Year: 514 Days

Day: 10.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 24,509,438 km

• M1: 170,542 km (0.078 R)
• M2: 845,527 km (0.025 R)
• M3: 1,326,784 km (0.026 R)
• M4: 2,164,980 km (0.114 R)
• M5: 2,825,156 km (0.054 R)
• M6: 3,283,823 km (0.038 R)
• M7: 3,819,832 km (0.05 R)
• M8: 4,368,557 km (0.099 R)
• M9: 5,429,954 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 37.6

Radius: 11.5

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 1.05 AU - 1.23 AU

Year: 798 Days

Day: 11 Hours

Environment

Temp: -166 °C

Axial Tilt: 37.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 24,509,438 km

• M1: 143,016 km (0.04 R)
• M2: 797,357 km (0.098 R)
• M3: 1,695,841 km (0.085 R)
• M4: 2,074,025 km (0.107 R)
• M5: 2,524,913 km (0.115 R)
• M6: 3,132,131 km (0.09 R)

Asteroid Belt

Center: 1.61 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54.4

Radius: 13.4

Gravity: 0.3 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 1.71 AU - 2.43 AU

Year: 1954 Days

Day: 10.4 Hours

Environment

Temp: -184 °C

Axial Tilt: 47.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 24,509,438 km

• M1: 166,652 km (0.068 R)
• M2: 860,637 km (0.086 R)
• M3: 1,592,769 km (0.088 R)
• M4: 3,080,519 km (0.042 R)
• M5: 4,136,680 km (0.11 R)
• M6: 4,971,885 km (0.07 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 84.7

Radius: 6.1

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 5.87 AU - 6.75 AU

Year: 10398 Days

Day: 24.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 24,509,438 km

• M1: 75,846 km (0.094 R)
• M2: 444,006 km (0.108 R)
• M3: 876,494 km (0.079 R)
• M4: 1,070,522 km (0.09 R)
• M5: 1,481,169 km (0.111 R)
• M6: 1,723,218 km (0.039 R)
• M7: 1,964,818 km (0.042 R)
• M8: 2,985,824 km (0.054 R)
• M9: 3,817,438 km (0.064 R)
• M10: 4,275,507 km (0.076 R)
• M11: 4,696,775 km (0.069 R)
• M12: 5,068,525 km (0.097 R)
• M13: 5,300,851 km (0.115 R)
• M14: 8,278,297 km (0.049 R)
• M15: 9,857,004 km (0.107 R)
• M16: 10,178,938 km (0.075 R)
• M17: 10,675,154 km (0.09 R)
• M18: 16,613,442 km (0.103 R)
• M19: 22,100,991 km (0.033 R)
• M20: 24,217,352 km (0.117 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 485 - 13,131 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit