🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.26

Radius: 1.1

Gravity: 1.04 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.52 AU - 0.82 AU

Year: 354 Days

Day: 37.7 Hours

Environment

Temp: -137 °C

Axial Tilt: 12.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 43,429,164 km

• M1: 254,316 km (0.108 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 164.7

Radius: 10.6

Gravity: 1.47 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.64 AU - 0.94 AU

Year: 453 Days

Day: 12.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 43,429,164 km

• M1: 132,245 km (0.044 R)
• M2: 487,839 km (0.072 R)
• M3: 841,787 km (0.112 R)
• M4: 2,090,181 km (0.076 R)
• M5: 2,491,104 km (0.075 R)
• M6: 2,970,864 km (0.083 R)
• M7: 3,337,828 km (0.044 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 905.9

Radius: 14.8

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 1.92 AU - 2.84 AU

Year: 2371 Days

Day: 9.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 43,429,164 km

• M1: 184,454 km (0.053 R)
• M2: 869,612 km (0.108 R)
• M3: 1,332,618 km (0.097 R)
• M4: 2,015,981 km (0.096 R)
• M5: 3,040,726 km (0.085 R)
• M6: 4,223,148 km (0.088 R)
• M7: 4,761,401 km (0.084 R)
• M8: 5,345,581 km (0.062 R)
• M9: 6,190,061 km (0.106 R)
• M10: 7,092,435 km (0.092 R)
• M11: 8,048,665 km (0.109 R)
• M12: 8,710,186 km (0.094 R)
• M13: 9,479,568 km (0.066 R)
• M14: 11,726,528 km (0.11 R)
• M15: 12,189,982 km (0.1 R)
• M16: 13,153,393 km (0.071 R)
• M17: 13,885,674 km (0.098 R)
• M18: 14,596,713 km (0.068 R)
• M19: 16,246,628 km (0.115 R)
• M20: 17,907,015 km (0.06 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 170.5

Radius: 8.5

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 3.92 AU - 5.38 AU

Year: 6474 Days

Day: 11.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 43,429,164 km

• M1: 105,766 km (0.114 R)
• M2: 416,181 km (0.099 R)
• M3: 749,186 km (0.118 R)
• M4: 1,044,044 km (0.056 R)
• M5: 1,532,331 km (0.09 R)
• M6: 2,467,467 km (0.104 R)
• M7: 3,393,029 km (0.087 R)
• M8: 4,533,264 km (0.056 R)
• M9: 8,315,248 km (0.098 R)
• M10: 10,160,837 km (0.104 R)
• M11: 14,441,131 km (0.113 R)
• M12: 15,779,434 km (0.092 R)
• M13: 16,533,407 km (0.034 R)
• M14: 20,922,609 km (0.094 R)

Planet 5 - Ice Giant

Semi-Major Axis: 9.61 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 137.7

Radius: 6.1

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 7.86 AU - 11.36 AU

Year: 19235 Days

Day: 22.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 45.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 43,429,164 km

• M1: 79,287 km (0.072 R)
• M2: 652,995 km (0.113 R)
• M3: 891,753 km (0.039 R)
• M4: 1,379,891 km (0.103 R)
• M5: 1,633,908 km (0.096 R)
• M6: 8,189,436 km (0.12 R)
• M7: 9,771,733 km (0.098 R)
• M8: 10,609,481 km (0.036 R)
• M9: 20,100,269 km (0.054 R)
• M10: 27,458,988 km (0.085 R)
• M11: 42,396,934 km (0.118 R)
• M12: 42,910,952 km (0.09 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 510 - 11,968 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit