🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.75 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.5 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.41

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1.43 AU - 1.57 AU

Year: 643 Days

Day: 42.6 Hours

Environment

Temp: 3 °C

Axial Tilt: 45.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 3.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.64

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 3.3 AU - 3.44 AU

Year: 2164 Days

Day: 40.5 Hours

Environment

Temp: -106 °C

Axial Tilt: 33.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 3.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.1

Radius: 0.4

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 3.15 AU - 3.87 AU

Year: 2301 Days

Day: 16.2 Hours

Environment

Temp: -111 °C

Axial Tilt: 26.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Gas Giant

Semi-Major Axis: 7.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 499.4

Radius: 11

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 6.6 AU - 7.66 AU

Year: 6661 Days

Day: 5 Hours

Environment

Temp: -158 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 36,659,807 km

• M1: 136,882 km (0.048 R)
• M2: 706,102 km (0.114 R)
• M3: 1,122,433 km (0.115 R)
• M4: 1,541,606 km (0.116 R)
• M5: 2,156,154 km (0.116 R)
• M6: 2,512,646 km (0.056 R)
• M7: 2,966,077 km (0.05 R)
• M8: 3,495,354 km (0.104 R)
• M9: 3,921,259 km (0.115 R)
• M10: 4,356,589 km (0.112 R)
• M11: 4,717,419 km (0.105 R)
• M12: 6,109,427 km (0.12 R)
• M13: 6,629,430 km (0.083 R)
• M14: 7,795,545 km (0.087 R)
• M15: 9,599,695 km (0.101 R)
• M16: 10,439,388 km (0.074 R)
• M17: 11,472,062 km (0.04 R)
• M18: 13,468,147 km (0.102 R)
• M19: 15,566,406 km (0.071 R)
• M20: 16,291,507 km (0.072 R)
• M21: 16,662,360 km (0.112 R)
• M22: 17,165,608 km (0.054 R)
• M23: 21,123,219 km (0.1 R)
• M24: 21,564,533 km (0.098 R)
• M25: 22,694,745 km (0.099 R)
• M26: 24,022,875 km (0.099 R)
• M27: 29,035,152 km (0.109 R)
• M28: 32,316,132 km (0.073 R)

Planet 5 - Gas Giant

Semi-Major Axis: 7.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 668.5

Radius: 10.4

Gravity: 6.18 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 7.5 AU - 8.28 AU

Year: 7753 Days

Day: 13.6 Hours

Environment

Temp: -163 °C

Axial Tilt: 45.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 36,659,807 km

• M1: 138,378 km (0.062 R)
• M2: 784,790 km (0.101 R)
• M3: 1,156,092 km (0.066 R)
• M4: 1,673,851 km (0.114 R)
• M5: 2,429,619 km (0.078 R)
• M6: 2,766,663 km (0.037 R)
• M7: 3,178,057 km (0.068 R)
• M8: 3,677,714 km (0.101 R)
• M9: 4,335,197 km (0.075 R)
• M10: 5,128,963 km (0.115 R)
• M11: 5,720,922 km (0.096 R)
• M12: 6,427,473 km (0.076 R)
• M13: 7,191,170 km (0.067 R)
• M14: 9,569,776 km (0.056 R)
• M15: 11,628,392 km (0.09 R)
• M16: 13,154,889 km (0.113 R)
• M17: 13,907,216 km (0.11 R)
• M18: 15,881,609 km (0.074 R)
• M19: 17,411,397 km (0.114 R)
• M20: 18,603,692 km (0.107 R)
• M21: 21,861,335 km (0.062 R)
• M22: 28,516,645 km (0.105 R)
• M23: 28,996,705 km (0.085 R)
• M24: 32,405,292 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 11.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 234

Radius: 12.4

Gravity: 1.52 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 9.45 AU - 12.79 AU

Year: 12973 Days

Day: 13.9 Hours

Environment

Temp: -179 °C

Axial Tilt: 4.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 36,659,807 km

• M1: 154,385 km (0.065 R)
• M2: 1,063,641 km (0.042 R)
• M3: 3,074,685 km (0.032 R)
• M4: 4,249,926 km (0.088 R)
• M5: 4,739,859 km (0.072 R)
• M6: 8,729,933 km (0.051 R)
• M7: 12,859,433 km (0.038 R)
• M8: 15,726,327 km (0.074 R)
• M9: 17,240,855 km (0.077 R)
• M10: 17,789,730 km (0.078 R)
• M11: 18,850,379 km (0.03 R)
• M12: 21,488,837 km (0.073 R)
• M13: 25,939,224 km (0.052 R)
• M14: 28,522,031 km (0.115 R)
• M15: 29,290,515 km (0.114 R)
• M16: 33,872,399 km (0.03 R)
• M17: 39,618,602 km (0.048 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 46.4

Radius: 4.8

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 14.91 AU - 20.17 AU

Year: 25699 Days

Day: 15.2 Hours

Environment

Temp: -201 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 36,659,807 km

• M1: 59,690 km (0.113 R)
• M2: 584,928 km (0.034 R)
• M3: 1,898,547 km (0.108 R)
• M4: 2,732,704 km (0.061 R)
• M5: 3,394,824 km (0.075 R)
• M6: 12,240,696 km (0.077 R)
• M7: 14,122,937 km (0.117 R)
• M8: 15,811,298 km (0.105 R)
• M9: 20,536,646 km (0.071 R)
• M10: 21,367,662 km (0.08 R)

Kuiper Belt

Range: 31.4 - 56.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 283 - 18,587 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit