🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.52

Radius: 0.77

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 0.44 AU - 0.58 AU

Year: 235 Days

Day: 17.5 Hours

Environment

Temp: -127 °C

Axial Tilt: 27.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 319

Radius: 13.5

Gravity: 1.75 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.88 AU - 1.3 AU

Year: 735 Days

Day: 5.4 Hours

Environment

Temp: -163 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 37,164,317 km

• M1: 167,849 km (0.101 R)
• M2: 785,987 km (0.062 R)
• M3: 1,695,991 km (0.076 R)
• M4: 2,355,269 km (0.056 R)
• M5: 2,846,847 km (0.078 R)
• M6: 3,382,557 km (0.103 R)
• M7: 4,067,566 km (0.097 R)
• M8: 4,689,893 km (0.101 R)
• M9: 5,646,572 km (0.087 R)
• M10: 6,479,832 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 590.1

Radius: 9.7

Gravity: 6.27 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 1.16 AU - 1.32 AU

Year: 892 Days

Day: 10.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 37,164,317 km

• M1: 120,576 km (0.103 R)
• M2: 452,234 km (0.115 R)
• M3: 839,693 km (0.102 R)
• M4: 1,263,653 km (0.105 R)
• M5: 2,031,689 km (0.049 R)
• M6: 2,345,096 km (0.077 R)
• M7: 2,846,249 km (0.06 R)
• M8: 3,774,953 km (0.104 R)
• M9: 4,684,807 km (0.032 R)
• M10: 5,274,671 km (0.087 R)
• M11: 5,753,983 km (0.099 R)
• M12: 6,241,223 km (0.094 R)
• M13: 7,604,359 km (0.111 R)
• M14: 8,968,093 km (0.077 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 34

Radius: 8

Gravity: 0.53 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 3.06 AU - 4.12 AU

Year: 4392 Days

Day: 5.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 37,164,317 km

• M1: 99,483 km (0.097 R)
• M2: 382,671 km (0.069 R)
• M3: 670,198 km (0.112 R)
• M4: 1,106,276 km (0.11 R)
• M5: 1,359,246 km (0.11 R)
• M6: 4,085,069 km (0.055 R)
• M7: 6,073,075 km (0.085 R)
• M8: 7,871,092 km (0.084 R)
• M9: 8,285,029 km (0.115 R)
• M10: 9,128,312 km (0.048 R)
• M11: 9,672,849 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 554.2

Radius: 12.6

Gravity: 3.49 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 4.5 AU - 5.84 AU

Year: 7590 Days

Day: 10.1 Hours

Environment

Temp: -221 °C

Axial Tilt: 115.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 37,164,317 km

• M1: 156,779 km (0.07 R)
• M2: 655,538 km (0.102 R)
• M3: 1,280,707 km (0.081 R)
• M4: 2,454,901 km (0.072 R)
• M5: 3,352,339 km (0.031 R)
• M6: 3,950,132 km (0.06 R)
• M7: 4,510,675 km (0.109 R)
• M8: 5,211,541 km (0.062 R)
• M9: 5,760,416 km (0.045 R)
• M10: 9,632,457 km (0.118 R)
• M11: 10,556,224 km (0.09 R)
• M12: 11,337,125 km (0.077 R)
• M13: 12,580,283 km (0.102 R)
• M14: 13,069,169 km (0.101 R)
• M15: 16,020,436 km (0.118 R)
• M16: 21,317,098 km (0.111 R)
• M17: 21,779,356 km (0.108 R)
• M18: 23,860,262 km (0.061 R)
• M19: 31,586,394 km (0.09 R)
• M20: 32,389,734 km (0.046 R)
• M21: 37,164,300 km (0.115 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 231 - 11,322 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit