🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.07

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 0.52 AU - 0.68 AU

Year: 214 Days

Day: 36.3 Hours

Environment

Temp: -3 °C

Axial Tilt: 18.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.86

Radius: 0.94

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.89 AU - 1.33 AU

Year: 538 Days

Day: 18.4 Hours

Environment

Temp: -83 °C

Axial Tilt: 29.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 49,488,054 km

• M1: 24,085 km (0.101 R)
• M2: 164,408 km (0.099 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.95 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.43

Radius: 0.71

Gravity: 0.85 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 1.58 AU - 2.32 AU

Year: 1253 Days

Day: 47.5 Hours

Environment

Temp: -129 °C

Axial Tilt: 37.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 5.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 44.9

Radius: 13.2

Gravity: 0.26 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 4.5 AU - 5.84 AU

Year: 5409 Days

Day: 9.4 Hours

Environment

Temp: -177 °C

Axial Tilt: 42.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 49,488,054 km

• M1: 164,707 km (0.112 R)
• M2: 740,509 km (0.046 R)
• M3: 1,199,625 km (0.083 R)
• M4: 2,071,332 km (0.062 R)
• M5: 3,805,770 km (0.116 R)
• M6: 4,527,430 km (0.113 R)
• M7: 5,031,276 km (0.12 R)
• M8: 6,083,098 km (0.052 R)
• M9: 7,148,235 km (0.095 R)
• M10: 7,645,050 km (0.047 R)
• M11: 9,336,702 km (0.071 R)
• M12: 11,724,733 km (0.109 R)
• M13: 12,269,419 km (0.074 R)

Planet 5 - Ice Giant

Semi-Major Axis: 15.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 103.4

Radius: 5.3

Gravity: 3.68 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 14.45 AU - 15.75 AU

Year: 27001 Days

Day: 23.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 13.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 49,488,054 km

• M1: 162,463 km (0.112 R)
• M2: 599,439 km (0.098 R)
• M3: 810,671 km (0.102 R)
• M4: 1,071,420 km (0.1 R)
• M5: 1,246,449 km (0.11 R)
• M6: 6,430,913 km (0.114 R)
• M7: 7,299,479 km (0.096 R)
• M8: 7,676,465 km (0.113 R)
• M9: 11,119,161 km (0.1 R)
• M10: 22,804,999 km (0.111 R)
• M11: 40,463,531 km (0.056 R)
• M12: 43,928,218 km (0.078 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 494 - 13,162 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit