🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.84

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.63 AU - 0.95 AU

Year: 259 Days

Day: 13.7 Hours

Environment

Temp: 157 °C

Axial Tilt: 19.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 77,325,127 km

• M1: 277,803 km (0.105 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.62

Radius: 1.47

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.079

Orbit Range: 0.74 AU - 0.86 AU

Year: 264 Days

Day: 24.2 Hours

Environment

Temp: 119 °C

Axial Tilt: 13.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 77,325,127 km

• M1: 443,707 km (0.064 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.25

Radius: 1.38

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 1.96 AU - 2.66 AU

Year: 1295 Days

Day: 18.7 Hours

Environment

Temp: -89 °C

Axial Tilt: 31.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 77,325,127 km

• M1: 46,226 km (0.117 R)
• M2: 1,071,719 km (0.07 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.1 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.13

Radius: 1.35

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 2.88 AU - 3.32 AU

Year: 2014 Days

Day: 32.5 Hours

Environment

Temp: -108 °C

Axial Tilt: 18.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.79

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 2.65 AU - 4.13 AU

Year: 2303 Days

Day: 35.3 Hours

Environment

Temp: -107 °C

Axial Tilt: 117.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.01 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.52

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 3.89 AU - 4.13 AU

Year: 2963 Days

Day: 34.9 Hours

Environment

Temp: -127 °C

Axial Tilt: 18.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 7.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 237

Radius: 9.6

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 5.86 AU - 8.6 AU

Year: 7173 Days

Day: 12.7 Hours

Environment

Temp: -171 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 77,325,127 km

• M1: 130,749 km (0.096 R)
• M2: 458,966 km (0.086 R)
• M3: 787,782 km (0.058 R)
• M4: 1,092,812 km (0.089 R)
• M5: 1,535,024 km (0.114 R)
• M6: 2,165,579 km (0.063 R)
• M7: 2,549,297 km (0.12 R)
• M8: 5,576,709 km (0.097 R)
• M9: 6,455,298 km (0.097 R)
• M10: 7,057,878 km (0.072 R)
• M11: 9,169,901 km (0.107 R)
• M12: 10,821,760 km (0.04 R)
• M13: 14,704,872 km (0.051 R)
• M14: 15,083,355 km (0.115 R)
• M15: 15,635,521 km (0.114 R)
• M16: 16,956,619 km (0.076 R)
• M17: 18,475,337 km (0.103 R)
• M18: 20,818,788 km (0.112 R)
• M19: 21,572,611 km (0.06 R)
• M20: 22,629,819 km (0.062 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 776.5

Radius: 4.1

Gravity: 46.19 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 10.89 AU - 17.03 AU

Year: 19244 Days

Day: 15.8 Hours

Environment

Temp: -187 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 77,325,127 km

• M1: 57,146 km (0.085 R)
• M2: 224,696 km (0.116 R)
• M3: 385,663 km (0.118 R)
• M4: 1,159,832 km (0.092 R)
• M5: 1,332,319 km (0.114 R)
• M6: 2,095,866 km (0.115 R)
• M7: 3,088,149 km (0.047 R)
• M8: 3,279,634 km (0.082 R)
• M9: 3,537,391 km (0.101 R)
• M10: 3,777,795 km (0.081 R)
• M11: 4,358,534 km (0.033 R)
• M12: 4,599,686 km (0.086 R)
• M13: 5,146,316 km (0.109 R)
• M14: 6,544,159 km (0.09 R)
• M15: 6,999,086 km (0.109 R)
• M16: 7,281,976 km (0.073 R)
• M17: 11,296,883 km (0.068 R)
• M18: 14,062,499 km (0.053 R)
• M19: 16,328,458 km (0.03 R)
• M20: 16,575,893 km (0.071 R)
• M21: 16,742,246 km (0.09 R)
• M22: 17,418,727 km (0.116 R)
• M23: 17,850,766 km (0.078 R)
• M24: 20,024,423 km (0.109 R)
• M25: 24,134,624 km (0.066 R)
• M26: 24,997,355 km (0.104 R)
• M27: 27,708,218 km (0.06 R)
• M28: 31,111,121 km (0.115 R)
• M29: 34,782,253 km (0.096 R)
• M30: 38,731,786 km (0.078 R)
• M31: 49,545,319 km (0.054 R)
• M32: 53,795,693 km (0.068 R)
• M33: 62,407,744 km (0.067 R)
• M34: 71,453,029 km (0.068 R)
• M35: 76,171,795 km (0.078 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 523 - 19,262 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit