🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.72 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.41

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 0.71 AU - 0.73 AU

Year: 225 Days

Day: 47.7 Hours

Environment

Temp: 142 °C

Axial Tilt: 50 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 64,558,884 km

• M1: 46,675 km (0.072 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.06 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.58

Radius: 1.67

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.87 AU - 1.25 AU

Year: 403 Days

Day: 30.3 Hours

Environment

Temp: 13 °C

Axial Tilt: 37.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.93

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.87 AU - 1.29 AU

Year: 414 Days

Day: 15.6 Hours

Environment

Temp: 11 °C

Axial Tilt: 15.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 3.91 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.81

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 3.04 AU - 4.78 AU

Year: 2853 Days

Day: 38 Hours

Environment

Temp: -119 °C

Axial Tilt: 4.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.33 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 830.5

Radius: 14.5

Gravity: 3.95 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 3.72 AU - 5.78 AU

Year: 3820 Days

Day: 13.7 Hours

Environment

Temp: -137 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 64,558,884 km

• M1: 265,237 km (0.051 R)
• M2: 866,471 km (0.063 R)
• M3: 1,765,704 km (0.104 R)
• M4: 2,261,172 km (0.112 R)
• M5: 2,798,827 km (0.115 R)
• M6: 3,602,018 km (0.109 R)
• M7: 4,342,228 km (0.081 R)
• M8: 5,156,040 km (0.034 R)
• M9: 6,187,218 km (0.101 R)
• M10: 8,621,176 km (0.095 R)
• M11: 11,365,549 km (0.055 R)
• M12: 13,660,081 km (0.103 R)
• M13: 14,542,259 km (0.09 R)
• M14: 16,191,576 km (0.096 R)
• M15: 17,061,488 km (0.069 R)
• M16: 17,901,480 km (0.092 R)
• M17: 20,991,872 km (0.057 R)
• M18: 22,806,644 km (0.063 R)
• M19: 24,048,606 km (0.096 R)
• M20: 24,648,344 km (0.097 R)
• M21: 25,644,366 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 803.9

Radius: 8.7

Gravity: 10.62 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 4.04 AU - 6.22 AU

Year: 4287 Days

Day: 9.5 Hours

Environment

Temp: -133 °C

Axial Tilt: 15.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 64,558,884 km

• M1: 108,608 km (0.089 R)
• M2: 388,805 km (0.085 R)
• M3: 866,022 km (0.111 R)
• M4: 1,223,860 km (0.063 R)
• M5: 1,704,518 km (0.12 R)
• M6: 2,067,443 km (0.06 R)
• M7: 3,006,169 km (0.084 R)
• M8: 3,315,089 km (0.078 R)
• M9: 3,752,663 km (0.057 R)
• M10: 4,252,170 km (0.106 R)
• M11: 5,900,439 km (0.066 R)
• M12: 6,769,453 km (0.11 R)
• M13: 10,314,624 km (0.083 R)
• M14: 11,248,713 km (0.1 R)
• M15: 12,093,193 km (0.107 R)
• M16: 13,131,252 km (0.05 R)
• M17: 15,047,302 km (0.111 R)
• M18: 15,383,747 km (0.101 R)
• M19: 15,840,320 km (0.115 R)
• M20: 16,900,520 km (0.064 R)
• M21: 21,194,428 km (0.064 R)
• M22: 23,818,225 km (0.081 R)
• M23: 25,842,733 km (0.103 R)
• M24: 26,325,784 km (0.115 R)
• M25: 27,144,234 km (0.025 R)
• M26: 27,643,293 km (0.066 R)
• M27: 28,063,813 km (0.032 R)
• M28: 28,403,400 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 12.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 709.7

Radius: 13.2

Gravity: 4.07 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 10.1 AU - 13.92 AU

Year: 15356 Days

Day: 8.3 Hours

Environment

Temp: -184 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 64,558,884 km

• M1: 164,109 km (0.056 R)
• M2: 3,045,065 km (0.113 R)
• M3: 3,983,941 km (0.058 R)
• M4: 5,248,342 km (0.036 R)
• M5: 6,596,967 km (0.12 R)
• M6: 9,323,388 km (0.09 R)
• M7: 11,412,373 km (0.106 R)
• M8: 13,524,396 km (0.104 R)
• M9: 15,885,499 km (0.081 R)
• M10: 17,766,991 km (0.029 R)
• M11: 19,186,825 km (0.101 R)
• M12: 21,226,591 km (0.068 R)
• M13: 22,251,486 km (0.107 R)
• M14: 26,047,383 km (0.089 R)
• M15: 34,640,285 km (0.092 R)
• M16: 37,251,067 km (0.062 R)
• M17: 40,130,826 km (0.092 R)
• M18: 44,799,626 km (0.087 R)
• M19: 48,530,297 km (0.075 R)
• M20: 49,010,806 km (0.087 R)
• M21: 51,460,920 km (0.117 R)
• M22: 61,704,335 km (0.116 R)
• M23: 63,025,733 km (0.061 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 223 - 16,447 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit