🌌 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: 0.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.6

Radius: 1.47

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 0.51 AU - 0.81 AU

Year: 352 Days

Day: 39.9 Hours

Environment

Temp: -127 °C

Axial Tilt: 25.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 30,571,287 km

• M1: 72,854 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 174.5

Radius: 8.3

Gravity: 2.53 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.95 AU - 1.09 AU

Year: 676 Days

Day: 12.5 Hours

Environment

Temp: -153 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 30,571,287 km

• M1: 103,223 km (0.099 R)
• M2: 471,682 km (0.103 R)
• M3: 1,127,818 km (0.075 R)
• M4: 1,561,951 km (0.025 R)
• M5: 2,473,750 km (0.112 R)
• M6: 3,211,417 km (0.086 R)
• M7: 3,910,937 km (0.076 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 399.3

Radius: 13

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 1.1 AU - 1.46 AU

Year: 950 Days

Day: 9.2 Hours

Environment

Temp: -177 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 30,571,287 km

• M1: 162,164 km (0.088 R)
• M2: 680,970 km (0.109 R)
• M3: 1,427,612 km (0.117 R)
• M4: 2,100,504 km (0.089 R)
• M5: 3,541,879 km (0.079 R)
• M6: 4,903,818 km (0.08 R)
• M7: 5,544,845 km (0.119 R)
• M8: 6,261,269 km (0.073 R)
• M9: 7,281,826 km (0.088 R)
• M10: 8,238,804 km (0.067 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 761.1

Radius: 11.1

Gravity: 6.18 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 2.1 AU - 3.48 AU

Year: 3057 Days

Day: 9.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 30,571,287 km

• M1: 138,079 km (0.118 R)
• M2: 1,396,047 km (0.083 R)
• M3: 1,796,970 km (0.118 R)
• M4: 2,568,296 km (0.057 R)
• M5: 4,198,165 km (0.074 R)
• M6: 4,760,354 km (0.12 R)
• M7: 5,604,834 km (0.095 R)
• M8: 8,426,399 km (0.096 R)
• M9: 10,480,677 km (0.114 R)
• M10: 12,259,845 km (0.066 R)
• M11: 14,035,571 km (0.046 R)
• M12: 14,430,360 km (0.068 R)
• M13: 15,501,780 km (0.111 R)
• M14: 21,472,231 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 295.4

Radius: 8.5

Gravity: 4.09 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 4.9 AU - 5.48 AU

Year: 7756 Days

Day: 5 Hours

Environment

Temp: -208 °C

Axial Tilt: 19.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 30,571,287 km

• M1: 105,915 km (0.114 R)
• M2: 452,683 km (0.087 R)
• M3: 928,255 km (0.108 R)
• M4: 1,636,451 km (0.118 R)
• M5: 3,936,818 km (0.053 R)
• M6: 4,956,477 km (0.074 R)
• M7: 5,513,430 km (0.094 R)
• M8: 7,579,376 km (0.109 R)
• M9: 8,549,818 km (0.116 R)
• M10: 10,333,024 km (0.071 R)
• M11: 10,826,398 km (0.099 R)
• M12: 11,288,506 km (0.05 R)
• M13: 11,908,738 km (0.062 R)
• M14: 13,798,608 km (0.104 R)
• M15: 14,177,390 km (0.09 R)
• M16: 14,618,854 km (0.097 R)
• M17: 15,069,442 km (0.083 R)
• M18: 15,821,321 km (0.111 R)
• M19: 21,080,135 km (0.111 R)
• M20: 23,751,654 km (0.048 R)
• M21: 25,409,946 km (0.106 R)
• M22: 26,891,564 km (0.045 R)
• M23: 28,955,565 km (0.095 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: 373 - 10,585 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit