🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.46

Radius: 0.73

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 0.47 AU - 0.59 AU

Year: 135 Days

Day: 13.8 Hours

Environment

Temp: 189 °C

Axial Tilt: 9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.26

Radius: 1.79

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.91 AU - 1.15 AU

Year: 366 Days

Day: 46.6 Hours

Environment

Temp: 102 °C

Axial Tilt: 19.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.05 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.97

Radius: 1.74

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.02 AU - 1.08 AU

Year: 376 Days

Day: 42.9 Hours

Environment

Temp: 155 °C

Axial Tilt: 13.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 1.58 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.2

Radius: 1.08

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 1.45 AU - 1.71 AU

Year: 695 Days

Day: 13.9 Hours

Environment

Temp: -2 °C

Axial Tilt: 9.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 30,990,488 km

• M1: 880,084 km (0.076 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.84

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 1.8 AU - 2.12 AU

Year: 960 Days

Day: 44.4 Hours

Environment

Temp: -44 °C

Axial Tilt: 15 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.97

Radius: 0.99

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 1.94 AU - 3.08 AU

Year: 1391 Days

Day: 17.4 Hours

Environment

Temp: -78 °C

Axial Tilt: 13.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Terrestrial

Semi-Major Axis: 2.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.88

Radius: 0.95

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 2.55 AU - 3.23 AU

Year: 1719 Days

Day: 38.4 Hours

Environment

Temp: -91 °C

Axial Tilt: 14.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 5.49 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.78

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 4.42 AU - 6.56 AU

Year: 4500 Days

Day: 13.1 Hours

Environment

Temp: -129 °C

Axial Tilt: 13.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 30,990,488 km

• M1: 2,985,375 km (0.092 R)

Asteroid Belt

Center: 9.52 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 9 - Ice Giant

Semi-Major Axis: 13.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 60.8

Radius: 5

Gravity: 2.43 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 12.1 AU - 15 AU

Year: 17450 Days

Day: 23.9 Hours

Environment

Temp: -174 °C

Axial Tilt: 58.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 30,990,488 km

• M1: 133,292 km (0.096 R)
• M2: 419,173 km (0.119 R)
• M3: 637,736 km (0.111 R)
• M4: 1,010,534 km (0.103 R)
• M5: 1,813,425 km (0.097 R)
• M6: 2,116,810 km (0.075 R)
• M7: 2,304,854 km (0.088 R)
• M8: 2,975,502 km (0.11 R)
• M9: 3,191,970 km (0.106 R)
• M10: 3,723,192 km (0.117 R)
• M11: 8,477,711 km (0.086 R)
• M12: 10,670,517 km (0.106 R)
• M13: 11,038,528 km (0.078 R)
• M14: 13,372,703 km (0.1 R)
• M15: 13,963,016 km (0.11 R)
• M16: 14,966,220 km (0.072 R)
• M17: 16,805,077 km (0.116 R)
• M18: 17,302,939 km (0.098 R)
• M19: 17,619,039 km (0.101 R)
• M20: 17,874,702 km (0.066 R)
• M21: 18,132,908 km (0.106 R)
• M22: 18,855,615 km (0.072 R)
• M23: 19,393,120 km (0.098 R)
• M24: 19,940,947 km (0.077 R)
• M25: 20,218,601 km (0.067 R)
• M26: 23,910,826 km (0.076 R)
• M27: 27,000,172 km (0.034 R)

Kuiper Belt

Range: 31.4 - 47.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 361 - 11,078 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit