🌌 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: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.98

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.43 AU - 0.65 AU

Year: 143 Days

Day: 17.2 Hours

Environment

Temp: 168 °C

Axial Tilt: 24.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 92,939,427 km

• M1: 112,797 km (0.1 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 5

Radius: 1.9

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.87 AU - 0.87 AU

Year: 292 Days

Day: 29.4 Hours

Environment

Temp: 105 °C

Axial Tilt: 39.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.72

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 1.12 AU - 1.3 AU

Year: 479 Days

Day: 34.3 Hours

Environment

Temp: 15 °C

Axial Tilt: 41.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.7

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 1.06 AU - 1.36 AU

Year: 479 Days

Day: 29.9 Hours

Environment

Temp: 24 °C

Axial Tilt: 11.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.83

Radius: 1.88

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 1.7 AU - 2.54 AU

Year: 1111 Days

Day: 34.2 Hours

Environment

Temp: -77 °C

Axial Tilt: 17.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 92,939,427 km

• M1: 281,094 km (0.113 R)
• M2: 931,995 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 557.3

Radius: 11.8

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 4.87 AU - 6.07 AU

Year: 4604 Days

Day: 13.9 Hours

Environment

Temp: -145 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 92,939,427 km

• M1: 146,756 km (0.03 R)
• M2: 532,269 km (0.07 R)
• M3: 1,265,000 km (0.09 R)
• M4: 2,084,646 km (0.069 R)
• M5: 2,580,862 km (0.117 R)
• M6: 2,954,708 km (0.117 R)
• M7: 3,404,249 km (0.058 R)
• M8: 4,633,944 km (0.103 R)
• M9: 5,297,111 km (0.086 R)
• M10: 6,409,521 km (0.03 R)
• M11: 7,069,995 km (0.09 R)
• M12: 8,489,978 km (0.057 R)
• M13: 10,216,637 km (0.117 R)
• M14: 11,296,135 km (0.102 R)
• M15: 13,428,802 km (0.118 R)
• M16: 16,673,131 km (0.116 R)
• M17: 19,042,313 km (0.075 R)
• M18: 22,610,372 km (0.097 R)
• M19: 23,330,237 km (0.107 R)
• M20: 26,284,944 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 151.8

Radius: 12.7

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 10.87 AU - 12.17 AU

Year: 14072 Days

Day: 5.6 Hours

Environment

Temp: -175 °C

Axial Tilt: 13.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 92,939,427 km

• M1: 157,975 km (0.111 R)
• M2: 659,278 km (0.093 R)
• M3: 1,621,491 km (0.106 R)
• M4: 2,243,669 km (0.09 R)
• M5: 3,462,742 km (0.118 R)
• M6: 4,997,167 km (0.065 R)
• M7: 7,344,358 km (0.088 R)
• M8: 9,665,070 km (0.089 R)
• M9: 10,968,217 km (0.104 R)
• M10: 11,712,915 km (0.037 R)
• M11: 14,208,357 km (0.112 R)
• M12: 15,214,403 km (0.078 R)
• M13: 16,394,431 km (0.054 R)
• M14: 21,347,616 km (0.086 R)
• M15: 25,126,309 km (0.074 R)
• M16: 26,158,085 km (0.06 R)
• M17: 26,950,356 km (0.102 R)
• M18: 29,423,508 km (0.043 R)

Planet 8 - Ice Giant

Semi-Major Axis: 20 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 481.9

Radius: 5

Gravity: 19.28 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 16.1 AU - 23.9 AU

Year: 32190 Days

Day: 18.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 92,939,427 km

• M1: 62,233 km (0.089 R)
• M2: 363,224 km (0.061 R)
• M3: 534,812 km (0.112 R)
• M4: 699,220 km (0.084 R)
• M5: 1,638,695 km (0.093 R)
• M6: 2,014,934 km (0.074 R)
• M7: 2,595,074 km (0.095 R)
• M8: 3,909,292 km (0.042 R)
• M9: 5,118,342 km (0.108 R)
• M10: 5,321,196 km (0.117 R)
• M11: 6,370,177 km (0.093 R)
• M12: 8,246,583 km (0.082 R)
• M13: 8,638,978 km (0.062 R)
• M14: 8,926,804 km (0.1 R)
• M15: 9,102,432 km (0.115 R)
• M16: 9,460,869 km (0.099 R)
• M17: 10,922,290 km (0.117 R)
• M18: 11,123,499 km (0.111 R)
• M19: 12,238,003 km (0.076 R)
• M20: 12,527,924 km (0.116 R)
• M21: 13,425,212 km (0.112 R)
• M22: 16,198,757 km (0.105 R)
• M23: 16,548,367 km (0.072 R)
• M24: 16,724,892 km (0.101 R)
• M25: 16,902,764 km (0.117 R)
• M26: 18,943,878 km (0.111 R)
• M27: 21,247,386 km (0.119 R)
• M28: 23,843,208 km (0.087 R)
• M29: 25,923,366 km (0.036 R)
• M30: 31,919,099 km (0.116 R)
• M31: 33,163,754 km (0.033 R)
• M32: 33,444,698 km (0.102 R)
• M33: 33,727,139 km (0.093 R)
• M34: 37,851,104 km (0.087 R)
• M35: 41,806,322 km (0.095 R)
• M36: 50,897,983 km (0.088 R)
• M37: 54,718,563 km (0.108 R)
• M38: 61,433,263 km (0.086 R)
• M39: 71,913,940 km (0.088 R)
• M40: 81,977,539 km (0.101 R)
• M41: 85,617,704 km (0.111 R)

Kuiper Belt

Range: 30.5 - 55.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 540 - 16,288 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit