🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.32

Radius: 0.63

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.52 AU - 0.78 AU

Year: 234 Days

Day: 16.5 Hours

Environment

Temp: 5 °C

Axial Tilt: 34 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 32,754,865 km

• M1: 23,337 km (0.103 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.93

Radius: 1.54

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 1.47 AU - 1.55 AU

Year: 828 Days

Day: 23.1 Hours

Environment

Temp: -104 °C

Axial Tilt: 34.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 32,754,865 km

• M1: 583,282 km (0.068 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.75

Radius: 1.25

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.84 AU - 2.02 AU

Year: 1196 Days

Day: 22 Hours

Environment

Temp: -124 °C

Axial Tilt: 16.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 2.49 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 4 - Gas Giant

Semi-Major Axis: 3.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 833

Radius: 9.2

Gravity: 9.84 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 2.92 AU - 3.18 AU

Year: 2377 Days

Day: 14.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 59.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 32,754,865 km

• M1: 116,088 km (0.075 R)
• M2: 630,854 km (0.049 R)
• M3: 1,509,293 km (0.088 R)
• M4: 1,811,181 km (0.079 R)
• M5: 2,524,913 km (0.074 R)
• M6: 2,858,666 km (0.11 R)
• M7: 3,432,972 km (0.097 R)
• M8: 3,942,203 km (0.115 R)
• M9: 5,111,759 km (0.086 R)
• M10: 7,800,931 km (0.043 R)
• M11: 8,249,724 km (0.063 R)
• M12: 9,164,216 km (0.087 R)
• M13: 9,483,607 km (0.075 R)
• M14: 11,476,849 km (0.103 R)
• M15: 12,615,140 km (0.057 R)
• M16: 13,189,296 km (0.116 R)
• M17: 13,919,783 km (0.06 R)
• M18: 14,485,113 km (0.117 R)
• M19: 15,712,115 km (0.109 R)
• M20: 16,637,378 km (0.069 R)
• M21: 17,327,921 km (0.115 R)
• M22: 17,817,106 km (0.102 R)
• M23: 18,259,766 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 723.3

Radius: 11.9

Gravity: 5.11 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 3.05 AU - 4.01 AU

Year: 2959 Days

Day: 7.5 Hours

Environment

Temp: -160 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 32,754,865 km

• M1: 147,952 km (0.089 R)
• M2: 695,032 km (0.102 R)
• M3: 1,135,747 km (0.108 R)
• M4: 1,525,749 km (0.117 R)
• M5: 1,907,822 km (0.106 R)
• M6: 2,987,021 km (0.113 R)
• M7: 3,710,326 km (0.067 R)
• M8: 4,134,885 km (0.068 R)
• M9: 5,278,860 km (0.042 R)
• M10: 5,951,751 km (0.066 R)
• M11: 7,097,970 km (0.093 R)
• M12: 7,595,682 km (0.069 R)
• M13: 9,449,948 km (0.085 R)
• M14: 10,169,065 km (0.103 R)
• M15: 13,745,950 km (0.089 R)
• M16: 14,919,246 km (0.09 R)
• M17: 16,264,430 km (0.049 R)
• M18: 16,911,890 km (0.063 R)
• M19: 21,483,152 km (0.043 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 18.4

Radius: 13.9

Gravity: 0.1 G

Time & Orbit

Eccentricity (e): 0.064

Orbit Range: 4.07 AU - 4.63 AU

Year: 4048 Days

Day: 5.8 Hours

Environment

Temp: -176 °C

Axial Tilt: 34.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 32,754,865 km

• M1: 173,085 km (0.09 R)
• M2: 1,376,001 km (0.068 R)
• M3: 2,253,692 km (0.101 R)
• M4: 3,847,059 km (0.072 R)
• M5: 5,829,979 km (0.119 R)
• M6: 6,739,384 km (0.093 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 567.2

Radius: 5.6

Gravity: 18.09 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 7.71 AU - 11.85 AU

Year: 13648 Days

Day: 22.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 48 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 32,754,865 km

• M1: 69,862 km (0.037 R)
• M2: 252,671 km (0.092 R)
• M3: 467,344 km (0.062 R)
• M4: 893,099 km (0.105 R)
• M5: 1,548,188 km (0.066 R)
• M6: 3,325,411 km (0.058 R)
• M7: 5,812,176 km (0.107 R)
• M8: 7,936,915 km (0.055 R)
• M9: 13,703,315 km (0.07 R)
• M10: 18,557,616 km (0.065 R)
• M11: 26,723,416 km (0.113 R)
• M12: 30,122,130 km (0.105 R)
• M13: 33,917,577 km (0.109 R)
• M14: 36,870,041 km (0.064 R)
• M15: 39,457,635 km (0.103 R)
• M16: 39,989,306 km (0.074 R)
• M17: 47,342,041 km (0.101 R)
• M18: 53,575,186 km (0.075 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 77.1

Radius: 5.6

Gravity: 2.46 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 11.23 AU - 11.27 AU

Year: 16838 Days

Day: 15.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 32,754,865 km

• M1: 69,862 km (0.095 R)
• M2: 742,005 km (0.087 R)
• M3: 925,861 km (0.083 R)
• M4: 3,087,999 km (0.084 R)
• M5: 3,484,882 km (0.065 R)
• M6: 13,314,510 km (0.041 R)
• M7: 26,445,164 km (0.085 R)
• M8: 30,644,825 km (0.083 R)
• M9: 31,210,903 km (0.115 R)
• M10: 31,976,694 km (0.102 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 529 - 15,923 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit