🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.57 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.4

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 0.43 AU - 0.71 AU

Year: 158 Days

Day: 26.9 Hours

Environment

Temp: 193 °C

Axial Tilt: 15.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 64,954,738 km

• M1: 37,998 km (0.082 R)
• M2: 478,564 km (0.027 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.29

Radius: 1.61

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 0.68 AU - 1.14 AU

Year: 319 Days

Day: 45.9 Hours

Environment

Temp: 94 °C

Axial Tilt: 19.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.47

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.59 AU - 1.69 AU

Year: 771 Days

Day: 31.3 Hours

Environment

Temp: -56 °C

Axial Tilt: 21.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 4.17 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.11

Radius: 1.57

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 4.14 AU - 4.2 AU

Year: 3126 Days

Day: 36.7 Hours

Environment

Temp: -129 °C

Axial Tilt: 0.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.11

Radius: 1.35

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 3.36 AU - 5.3 AU

Year: 3308 Days

Day: 33 Hours

Environment

Temp: -141 °C

Axial Tilt: 22.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 64,954,738 km

• M1: 198,816 km (0.114 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.03

Radius: 1.01

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 4.08 AU - 5.24 AU

Year: 3693 Days

Day: 37.9 Hours

Environment

Temp: -134 °C

Axial Tilt: 13.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 64,954,738 km

• M1: 479,760 km (0.088 R)
• M2: 2,645,489 km (0.092 R)

Asteroid Belt

Center: 11.82 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Ice Giant

Semi-Major Axis: 18.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 185.3

Radius: 4.8

Gravity: 8.04 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 15.99 AU - 21.95 AU

Year: 30330 Days

Day: 19.1 Hours

Environment

Temp: -200 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 64,954,738 km

• M1: 68,366 km (0.088 R)
• M2: 643,720 km (0.042 R)
• M3: 1,123,181 km (0.103 R)
• M4: 1,609,972 km (0.049 R)
• M5: 2,477,640 km (0.098 R)
• M6: 5,364,580 km (0.04 R)
• M7: 8,367,757 km (0.112 R)
• M8: 9,941,526 km (0.109 R)
• M9: 10,680,839 km (0.104 R)
• M10: 12,656,129 km (0.09 R)
• M11: 14,288,392 km (0.1 R)
• M12: 14,501,718 km (0.111 R)
• M13: 16,754,513 km (0.042 R)
• M14: 20,554,897 km (0.052 R)
• M15: 33,161,510 km (0.089 R)
• M16: 38,112,601 km (0.068 R)
• M17: 38,798,657 km (0.065 R)
• M18: 44,283,812 km (0.074 R)
• M19: 46,428,298 km (0.076 R)
• M20: 48,962,785 km (0.112 R)
• M21: 51,587,779 km (0.037 R)
• M22: 52,765,263 km (0.089 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: 427 - 16,705 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit