🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.99

Radius: 1.32

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 0.6 AU - 0.64 AU

Year: 315 Days

Day: 31.1 Hours

Environment

Temp: -139 °C

Axial Tilt: 7.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 27,729,215 km

• M1: 51,611 km (0.04 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 156.1

Radius: 10.2

Gravity: 1.5 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.92 AU - 1.04 AU

Year: 626 Days

Day: 7.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 11.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 27,729,215 km

• M1: 127,158 km (0.069 R)
• M2: 459,565 km (0.101 R)
• M3: 976,126 km (0.109 R)
• M4: 1,680,433 km (0.096 R)
• M5: 2,029,146 km (0.09 R)
• M6: 2,443,532 km (0.081 R)
• M7: 2,779,229 km (0.085 R)
• M8: 3,389,888 km (0.112 R)
• M9: 4,200,409 km (0.04 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 43.8

Radius: 10.7

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 1.81 AU - 1.91 AU

Year: 1638 Days

Day: 12.7 Hours

Environment

Temp: -194 °C

Axial Tilt: 3.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 27,729,215 km

• M1: 133,292 km (0.06 R)
• M2: 1,623,137 km (0.085 R)
• M3: 3,303,271 km (0.056 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 978.5

Radius: 10.8

Gravity: 8.39 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 2.17 AU - 2.25 AU

Year: 2121 Days

Day: 11.9 Hours

Environment

Temp: -183 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 27,729,215 km

• M1: 134,788 km (0.073 R)
• M2: 530,773 km (0.099 R)
• M3: 1,001,857 km (0.036 R)
• M4: 1,467,705 km (0.103 R)
• M5: 3,021,428 km (0.088 R)
• M6: 3,854,539 km (0.09 R)
• M7: 4,440,813 km (0.058 R)
• M8: 5,946,216 km (0.113 R)
• M9: 7,016,290 km (0.069 R)
• M10: 7,400,307 km (0.085 R)
• M11: 8,113,889 km (0.103 R)
• M12: 8,941,016 km (0.118 R)
• M13: 9,392,951 km (0.063 R)
• M14: 10,342,449 km (0.11 R)
• M15: 11,395,019 km (0.101 R)
• M16: 11,885,102 km (0.082 R)
• M17: 13,172,093 km (0.072 R)
• M18: 13,530,529 km (0.108 R)
• M19: 14,981,329 km (0.103 R)
• M20: 16,378,723 km (0.069 R)
• M21: 17,003,444 km (0.101 R)
• M22: 19,201,036 km (0.065 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 300.6

Radius: 13.2

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 3.75 AU - 5.71 AU

Year: 6642 Days

Day: 14.1 Hours

Environment

Temp: -207 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 27,729,215 km

• M1: 165,904 km (0.114 R)
• M2: 1,460,973 km (0.107 R)
• M3: 2,120,101 km (0.103 R)
• M4: 2,829,793 km (0.093 R)
• M5: 5,825,491 km (0.092 R)
• M6: 6,701,985 km (0.087 R)
• M7: 10,113,564 km (0.052 R)
• M8: 11,470,566 km (0.081 R)
• M9: 13,858,298 km (0.108 R)
• M10: 17,942,918 km (0.063 R)
• M11: 27,399,748 km (0.113 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 509 - 19,137 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit