🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.89

Radius: 1.29

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.46 AU - 0.62 AU

Year: 181 Days

Day: 12.2 Hours

Environment

Temp: 3 °C

Axial Tilt: 13.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 87,256,441 km

• M1: 30,219 km (0.032 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.87

Radius: 1.52

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.53 AU - 0.63 AU

Year: 202 Days

Day: 27.7 Hours

Environment

Temp: -0 °C

Axial Tilt: 43.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.07

Radius: 1.34

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 0.78 AU - 0.84 AU

Year: 333 Days

Day: 45.2 Hours

Environment

Temp: -46 °C

Axial Tilt: 11 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.91

Radius: 0.96

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.99 AU - 1.05 AU

Year: 470 Days

Day: 26.6 Hours

Environment

Temp: -78 °C

Axial Tilt: 37.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 2.98 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 4.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 629.7

Radius: 13.2

Gravity: 3.61 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 4.61 AU - 5.27 AU

Year: 5013 Days

Day: 8.6 Hours

Environment

Temp: -175 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 87,256,441 km

• M1: 164,109 km (0.1 R)
• M2: 907,311 km (0.086 R)
• M3: 1,428,959 km (0.084 R)
• M4: 2,588,193 km (0.032 R)
• M5: 3,066,906 km (0.057 R)
• M6: 3,605,009 km (0.083 R)
• M7: 4,542,988 km (0.116 R)
• M8: 6,293,882 km (0.099 R)
• M9: 6,967,222 km (0.054 R)
• M10: 8,534,259 km (0.119 R)
• M11: 9,400,880 km (0.046 R)
• M12: 10,455,994 km (0.092 R)
• M13: 15,880,412 km (0.089 R)
• M14: 20,027,116 km (0.067 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 268.8

Radius: 13.6

Gravity: 1.45 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 6.19 AU - 8.85 AU

Year: 9415 Days

Day: 7.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 87,256,441 km

• M1: 169,494 km (0.083 R)
• M2: 662,419 km (0.072 R)
• M3: 1,149,211 km (0.078 R)
• M4: 2,331,932 km (0.072 R)
• M5: 3,433,870 km (0.095 R)
• M6: 4,311,710 km (0.078 R)
• M7: 4,885,268 km (0.118 R)
• M8: 6,646,035 km (0.088 R)
• M9: 7,198,799 km (0.047 R)
• M10: 7,633,531 km (0.108 R)
• M11: 8,124,361 km (0.059 R)
• M12: 8,636,135 km (0.089 R)
• M13: 12,173,976 km (0.052 R)
• M14: 13,541,599 km (0.069 R)
• M15: 21,354,797 km (0.119 R)
• M16: 24,215,407 km (0.081 R)
• M17: 25,779,603 km (0.048 R)
• M18: 30,781,407 km (0.086 R)
• M19: 31,545,105 km (0.049 R)

Planet 7 - Ice Giant

Semi-Major Axis: 15.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 504.5

Radius: 3.1

Gravity: 52.5 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 13.48 AU - 18.08 AU

Year: 28619 Days

Day: 15.7 Hours

Environment

Temp: -226 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 87,256,441 km

• M1: 38,596 km (0.106 R)
• M2: 174,730 km (0.116 R)
• M3: 409,300 km (0.115 R)
• M4: 599,738 km (0.111 R)
• M5: 757,414 km (0.116 R)
• M6: 1,184,965 km (0.094 R)
• M7: 2,513,095 km (0.11 R)
• M8: 3,466,631 km (0.087 R)
• M9: 3,589,003 km (0.107 R)
• M10: 5,093,807 km (0.116 R)
• M11: 5,454,638 km (0.035 R)
• M12: 6,049,738 km (0.119 R)
• M13: 8,695,227 km (0.114 R)
• M14: 10,875,466 km (0.098 R)
• M15: 11,813,445 km (0.048 R)
• M16: 14,157,194 km (0.1 R)
• M17: 17,055,803 km (0.106 R)
• M18: 20,724,541 km (0.105 R)
• M19: 21,743,452 km (0.083 R)
• M20: 23,660,698 km (0.04 R)
• M21: 30,470,094 km (0.094 R)
• M22: 31,386,830 km (0.112 R)
• M23: 34,387,763 km (0.081 R)
• M24: 36,248,013 km (0.057 R)
• M25: 42,714,530 km (0.106 R)
• M26: 46,561,589 km (0.069 R)
• M27: 48,127,729 km (0.101 R)
• M28: 49,012,750 km (0.088 R)
• M29: 53,224,080 km (0.092 R)
• M30: 54,743,546 km (0.116 R)
• M31: 55,707,704 km (0.118 R)
• M32: 60,085,087 km (0.115 R)
• M33: 63,620,384 km (0.079 R)
• M34: 69,291,490 km (0.099 R)
• M35: 72,249,339 km (0.061 R)
• M36: 74,581,121 km (0.1 R)
• M37: 74,817,037 km (0.106 R)
• M38: 75,290,215 km (0.094 R)
• M39: 85,437,588 km (0.089 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 306 - 19,139 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit