🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.6

Radius: 1.21

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.54 AU - 0.64 AU

Year: 158 Days

Day: 14.6 Hours

Environment

Temp: 266 °C

Axial Tilt: 23.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.6

Radius: 1.47

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.52 AU - 1.76 AU

Year: 731 Days

Day: 35.4 Hours

Environment

Temp: -29 °C

Axial Tilt: 37.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 62,599,520 km

• M1: 51,910 km (0.081 R)
• M2: 101,427 km (0.113 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.72 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.88

Radius: 1.89

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 1.51 AU - 1.93 AU

Year: 786 Days

Day: 47.3 Hours

Environment

Temp: -42 °C

Axial Tilt: 2.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 62,599,520 km

• M1: 1,365,081 km (0.081 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.78 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.23

Radius: 1.38

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 1.56 AU - 2 AU

Year: 827 Days

Day: 14.1 Hours

Environment

Temp: -31 °C

Axial Tilt: 8.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.59

Radius: 1.2

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 2.72 AU - 3.46 AU

Year: 1892 Days

Day: 46.7 Hours

Environment

Temp: -85 °C

Axial Tilt: 15.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 5.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.41

Radius: 1.63

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 5.33 AU - 5.73 AU

Year: 4529 Days

Day: 28.9 Hours

Environment

Temp: -143 °C

Axial Tilt: 32.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 62,599,520 km

• M1: 2,535,983 km (0.07 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 161.5

Radius: 12.8

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 5.36 AU - 6.88 AU

Year: 5273 Days

Day: 6 Hours

Environment

Temp: -151 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 62,599,520 km

• M1: 159,322 km (0.034 R)
• M2: 676,631 km (0.108 R)
• M3: 1,122,134 km (0.106 R)
• M4: 1,529,040 km (0.102 R)
• M5: 2,036,925 km (0.117 R)
• M6: 2,497,985 km (0.069 R)
• M7: 2,996,595 km (0.048 R)
• M8: 3,489,221 km (0.082 R)
• M9: 5,160,079 km (0.114 R)
• M10: 6,483,123 km (0.094 R)
• M11: 7,194,610 km (0.081 R)
• M12: 7,738,698 km (0.103 R)
• M13: 8,473,672 km (0.052 R)
• M14: 10,009,444 km (0.048 R)
• M15: 11,478,944 km (0.099 R)
• M16: 13,535,017 km (0.098 R)
• M17: 14,038,863 km (0.116 R)
• M18: 14,890,374 km (0.105 R)
• M19: 16,129,642 km (0.097 R)
• M20: 18,143,679 km (0.077 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 446.6

Radius: 11.4

Gravity: 3.44 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 5.79 AU - 7.59 AU

Year: 6026 Days

Day: 13.7 Hours

Environment

Temp: -140 °C

Axial Tilt: 138 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 62,599,520 km

• M1: 142,567 km (0.12 R)
• M2: 539,600 km (0.105 R)
• M3: 1,038,060 km (0.102 R)
• M4: 2,375,315 km (0.082 R)
• M5: 5,051,621 km (0.074 R)
• M6: 5,464,361 km (0.052 R)
• M7: 7,877,824 km (0.1 R)
• M8: 9,177,530 km (0.105 R)
• M9: 9,920,882 km (0.061 R)
• M10: 11,248,713 km (0.087 R)
• M11: 12,197,612 km (0.073 R)
• M12: 16,235,259 km (0.094 R)
• M13: 19,175,605 km (0.098 R)
• M14: 20,047,760 km (0.094 R)
• M15: 22,527,345 km (0.107 R)
• M16: 23,422,688 km (0.081 R)
• M17: 28,002,328 km (0.049 R)

Planet 9 - Gas Giant

Semi-Major Axis: 11.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 808.1

Radius: 14.3

Gravity: 3.95 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 11.25 AU - 11.93 AU

Year: 13741 Days

Day: 5.8 Hours

Environment

Temp: -165 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 62,599,520 km

• M1: 177,872 km (0.108 R)
• M2: 640,728 km (0.1 R)
• M3: 1,107,174 km (0.112 R)
• M4: 1,764,058 km (0.072 R)
• M5: 3,139,012 km (0.115 R)
• M6: 4,054,102 km (0.089 R)
• M7: 5,866,032 km (0.077 R)
• M8: 6,494,642 km (0.064 R)
• M9: 8,169,241 km (0.106 R)
• M10: 8,753,869 km (0.115 R)
• M11: 9,736,428 km (0.108 R)
• M12: 11,798,784 km (0.119 R)
• M13: 12,997,961 km (0.088 R)
• M14: 20,506,128 km (0.104 R)
• M15: 25,166,251 km (0.104 R)
• M16: 28,675,369 km (0.066 R)
• M17: 31,188,463 km (0.111 R)
• M18: 34,847,627 km (0.108 R)
• M19: 42,282,941 km (0.101 R)
• M20: 43,007,144 km (0.062 R)
• M21: 44,629,682 km (0.111 R)
• M22: 46,445,950 km (0.071 R)
• M23: 54,205,292 km (0.103 R)
• M24: 56,446,568 km (0.113 R)

Kuiper Belt

Range: 31.5 - 57.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 458 - 16,602 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit