🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.69 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.21

Radius: 0.54

Gravity: 0.72 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 0.64 AU - 0.74 AU

Year: 217 Days

Day: 26.3 Hours

Environment

Temp: 103 °C

Axial Tilt: 49.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 27,472,717 km

• M1: 15,558 km (0.094 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.71 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.8

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.71 AU - 0.71 AU

Year: 227 Days

Day: 29.4 Hours

Environment

Temp: 102 °C

Axial Tilt: 13.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.64

Radius: 1.47

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.98 AU - 1 AU

Year: 373 Days

Day: 25.1 Hours

Environment

Temp: 12 °C

Axial Tilt: 168.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.8

Radius: 1.87

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.52 AU - 2.34 AU

Year: 1016 Days

Day: 32.6 Hours

Environment

Temp: -77 °C

Axial Tilt: 34.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.48 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.96

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 2.38 AU - 2.58 AU

Year: 1479 Days

Day: 33.9 Hours

Environment

Temp: -87 °C

Axial Tilt: 11.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 4.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 504.3

Radius: 13.3

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 4.4 AU - 4.88 AU

Year: 3786 Days

Day: 9.2 Hours

Environment

Temp: -140 °C

Axial Tilt: 47.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 27,472,717 km

• M1: 166,353 km (0.069 R)
• M2: 778,507 km (0.044 R)
• M3: 1,249,741 km (0.113 R)
• M4: 1,831,228 km (0.086 R)
• M5: 2,382,496 km (0.111 R)
• M6: 3,326,757 km (0.114 R)
• M7: 4,050,811 km (0.065 R)
• M8: 4,712,931 km (0.07 R)
• M9: 8,246,583 km (0.083 R)
• M10: 10,631,173 km (0.085 R)
• M11: 13,396,639 km (0.095 R)
• M12: 19,199,840 km (0.114 R)
• M13: 19,748,265 km (0.037 R)
• M14: 20,812,804 km (0.05 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 160.7

Radius: 8.4

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 6.25 AU - 10.23 AU

Year: 8959 Days

Day: 11.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 27,472,717 km

• M1: 310,565 km (0.109 R)
• M2: 705,204 km (0.068 R)
• M3: 1,001,259 km (0.101 R)
• M4: 1,392,008 km (0.111 R)
• M5: 2,648,630 km (0.085 R)
• M6: 3,324,364 km (0.094 R)
• M7: 5,611,715 km (0.108 R)
• M8: 9,899,789 km (0.103 R)
• M9: 10,490,850 km (0.063 R)
• M10: 11,929,832 km (0.083 R)
• M11: 12,647,752 km (0.057 R)
• M12: 17,210,337 km (0.087 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 260 - 19,942 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit