🌌 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 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.88

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 0.56 AU - 0.56 AU

Year: 275 Days

Day: 22.4 Hours

Environment

Temp: -122 °C

Axial Tilt: 13.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 8,897,124 km

• M1: 90,956 km (0.12 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.6

Radius: 0.82

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 0.61 AU - 0.73 AU

Year: 360 Days

Day: 38.1 Hours

Environment

Temp: -137 °C

Axial Tilt: 37.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 8,897,124 km

• M1: 19,149 km (0.092 R)
• M2: 70,909 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 665.2

Radius: 14

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.58 AU - 0.78 AU

Year: 368 Days

Day: 8 Hours

Environment

Temp: -141 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 8,897,124 km

• M1: 174,282 km (0.107 R)
• M2: 711,338 km (0.116 R)
• M3: 1,164,470 km (0.084 R)
• M4: 1,607,130 km (0.118 R)
• M5: 2,197,892 km (0.096 R)
• M6: 2,881,704 km (0.079 R)
• M7: 3,369,094 km (0.041 R)
• M8: 3,825,367 km (0.111 R)
• M9: 4,835,602 km (0.06 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 33.9

Radius: 12.7

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.23 AU - 1.77 AU

Year: 1205 Days

Day: 13.3 Hours

Environment

Temp: -171 °C

Axial Tilt: 20.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (2)

Outer Limit: 8,897,124 km

• M1: 158,424 km (0.098 R)
• M2: 1,115,252 km (0.045 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 254.8

Radius: 13

Gravity: 1.51 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 1.97 AU - 2.81 AU

Year: 2424 Days

Day: 8.7 Hours

Environment

Temp: -188 °C

Axial Tilt: 42.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 8,897,124 km

• M1: 161,865 km (0.114 R)
• M2: 682,017 km (0.026 R)
• M3: 1,376,151 km (0.03 R)
• M4: 1,928,317 km (0.051 R)
• M5: 2,705,029 km (0.117 R)
• M6: 4,072,652 km (0.112 R)
• M7: 4,860,285 km (0.078 R)
• M8: 5,354,557 km (0.071 R)
• M9: 6,420,292 km (0.087 R)
• M10: 7,276,141 km (0.083 R)
• M11: 8,064,971 km (0.119 R)
• M12: 9,000,705 km (0.089 R)
• M13: 9,558,107 km (0.1 R)
• M14: 10,007,499 km (0.087 R)
• M15: 10,606,040 km (0.1 R)
• M16: 11,985,183 km (0.069 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 56.6

Radius: 8.3

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 2.05 AU - 3.19 AU

Year: 2782 Days

Day: 9.4 Hours

Environment

Temp: -197 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 8,897,124 km

• M1: 103,223 km (0.058 R)
• M2: 430,842 km (0.083 R)
• M3: 759,359 km (0.065 R)
• M4: 1,027,887 km (0.104 R)
• M5: 1,697,786 km (0.108 R)
• M6: 2,168,720 km (0.09 R)
• M7: 2,771,899 km (0.105 R)
• M8: 5,561,151 km (0.075 R)
• M9: 6,556,875 km (0.106 R)
• M10: 7,859,274 km (0.098 R)
• M11: 8,610,105 km (0.091 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 490 - 19,479 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit