🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.02

Radius: 1.56

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.57 AU - 0.91 AU

Year: 227 Days

Day: 35.5 Hours

Environment

Temp: 149 °C

Axial Tilt: 161.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.84 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.52

Radius: 1.18

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.73 AU - 0.95 AU

Year: 274 Days

Day: 25.5 Hours

Environment

Temp: 159 °C

Axial Tilt: 2.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 4.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.03

Radius: 1.75

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 3.78 AU - 4.52 AU

Year: 3013 Days

Day: 34.7 Hours

Environment

Temp: -114 °C

Axial Tilt: 11.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 6.08 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 8.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 866.7

Radius: 12.5

Gravity: 5.55 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 6.46 AU - 9.56 AU

Year: 8081 Days

Day: 13.1 Hours

Environment

Temp: -161 °C

Axial Tilt: 29.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 61,307,751 km

• M1: 155,432 km (0.095 R)
• M2: 570,566 km (0.11 R)
• M3: 1,160,580 km (0.049 R)
• M4: 1,722,619 km (0.041 R)
• M5: 2,444,280 km (0.091 R)
• M6: 2,917,757 km (0.089 R)
• M7: 3,694,319 km (0.082 R)
• M8: 5,558,907 km (0.075 R)
• M9: 8,632,096 km (0.056 R)
• M10: 10,179,686 km (0.109 R)
• M11: 10,993,499 km (0.085 R)
• M12: 15,995,004 km (0.049 R)
• M13: 19,368,586 km (0.053 R)
• M14: 20,697,763 km (0.09 R)
• M15: 21,671,944 km (0.108 R)
• M16: 23,018,026 km (0.108 R)
• M17: 27,198,538 km (0.045 R)
• M18: 29,772,370 km (0.1 R)
• M19: 31,540,617 km (0.066 R)

Planet 5 - Gas Giant

Semi-Major Axis: 10.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 960.7

Radius: 12.8

Gravity: 5.86 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 9.57 AU - 11.53 AU

Year: 12214 Days

Day: 8.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 41.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 61,307,751 km

• M1: 232,026 km (0.063 R)
• M2: 883,974 km (0.071 R)
• M3: 1,545,196 km (0.09 R)
• M4: 2,219,733 km (0.065 R)
• M5: 3,514,503 km (0.116 R)
• M6: 4,072,652 km (0.104 R)
• M7: 4,561,389 km (0.03 R)
• M8: 6,149,968 km (0.083 R)
• M9: 6,837,520 km (0.092 R)
• M10: 7,441,746 km (0.116 R)
• M11: 9,314,412 km (0.058 R)
• M12: 10,726,167 km (0.087 R)
• M13: 16,264,131 km (0.085 R)
• M14: 27,535,283 km (0.118 R)
• M15: 29,177,419 km (0.066 R)
• M16: 30,537,413 km (0.113 R)
• M17: 31,702,631 km (0.092 R)
• M18: 35,123,186 km (0.086 R)
• M19: 50,142,065 km (0.111 R)
• M20: 53,418,557 km (0.034 R)
• M21: 57,711,717 km (0.113 R)

Kuiper Belt

Range: 30.8 - 54.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 451 - 15,906 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit