🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.61

Radius: 1.21

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 0.59 AU - 0.77 AU

Year: 214 Days

Day: 24.7 Hours

Environment

Temp: 167 °C

Axial Tilt: 8.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.11 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.46

Radius: 1.16

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 0.87 AU - 1.35 AU

Year: 445 Days

Day: 45.5 Hours

Environment

Temp: 11 °C

Axial Tilt: 38.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.56

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 1.15 AU - 1.61 AU

Year: 617 Days

Day: 32.3 Hours

Environment

Temp: -35 °C

Axial Tilt: 16.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.19

Radius: 1.77

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.56 AU - 1.98 AU

Year: 897 Days

Day: 12.8 Hours

Environment

Temp: -65 °C

Axial Tilt: 14.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.14

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 2.95 AU - 3.27 AU

Year: 2089 Days

Day: 37.2 Hours

Environment

Temp: -116 °C

Axial Tilt: 27.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 35,373,602 km

• M1: 2,002,966 km (0.104 R)

Planet 6 - Terrestrial

Semi-Major Axis: 3.27 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.91

Radius: 1.3

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 3.12 AU - 3.42 AU

Year: 2252 Days

Day: 13.3 Hours

Environment

Temp: -121 °C

Axial Tilt: 0.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.76 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 6.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 656.7

Radius: 14.7

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 4.79 AU - 7.69 AU

Year: 5936 Days

Day: 7.7 Hours

Environment

Temp: -156 °C

Axial Tilt: 38.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 35,373,602 km

• M1: 182,809 km (0.056 R)
• M2: 689,197 km (0.082 R)
• M3: 1,546,094 km (0.118 R)
• M4: 2,077,316 km (0.103 R)
• M5: 2,660,000 km (0.082 R)
• M6: 3,228,322 km (0.093 R)
• M7: 4,112,595 km (0.096 R)
• M8: 4,586,671 km (0.108 R)
• M9: 6,829,292 km (0.062 R)
• M10: 8,366,111 km (0.112 R)
• M11: 9,858,051 km (0.112 R)
• M12: 10,667,675 km (0.115 R)
• M13: 11,618,818 km (0.105 R)
• M14: 13,364,924 km (0.114 R)
• M15: 17,116,988 km (0.119 R)
• M16: 19,303,062 km (0.085 R)
• M17: 19,789,704 km (0.116 R)
• M18: 22,271,233 km (0.066 R)
• M19: 24,384,752 km (0.066 R)
• M20: 27,406,779 km (0.057 R)
• M21: 28,646,646 km (0.111 R)
• M22: 30,202,165 km (0.109 R)
• M23: 33,083,719 km (0.082 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 942.4

Radius: 10.7

Gravity: 8.23 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 6.37 AU - 8.99 AU

Year: 8105 Days

Day: 8.7 Hours

Environment

Temp: -167 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 35,373,602 km

• M1: 133,142 km (0.109 R)
• M2: 486,343 km (0.052 R)
• M3: 829,371 km (0.099 R)
• M4: 1,236,875 km (0.092 R)
• M5: 1,619,098 km (0.102 R)
• M6: 3,581,074 km (0.032 R)
• M7: 4,543,437 km (0.074 R)
• M8: 5,602,889 km (0.101 R)
• M9: 6,298,818 km (0.053 R)
• M10: 6,973,654 km (0.067 R)
• M11: 7,947,536 km (0.117 R)
• M12: 13,417,882 km (0.109 R)
• M13: 13,845,133 km (0.112 R)
• M14: 14,791,190 km (0.077 R)
• M15: 15,313,137 km (0.068 R)
• M16: 15,779,733 km (0.096 R)
• M17: 18,109,121 km (0.09 R)
• M18: 19,163,338 km (0.089 R)
• M19: 20,983,345 km (0.083 R)
• M20: 23,703,334 km (0.044 R)
• M21: 24,148,687 km (0.114 R)
• M22: 26,174,541 km (0.094 R)
• M23: 30,143,971 km (0.1 R)
• M24: 31,089,429 km (0.097 R)
• M25: 33,595,194 km (0.115 R)
• M26: 35,764,513 km (0.085 R)
• M27: 37,062,124 km (0.089 R)
• M28: 42,437,176 km (0.102 R)
• M29: 45,515,152 km (0.106 R)
• M30: 46,065,224 km (0.106 R)

Planet 9 - Gas Giant

Semi-Major Axis: 9.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 255.3

Radius: 11.7

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 8.14 AU - 9.98 AU

Year: 10385 Days

Day: 12.5 Hours

Environment

Temp: -185 °C

Axial Tilt: 0.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 35,373,602 km

• M1: 145,708 km (0.084 R)
• M2: 546,780 km (0.093 R)
• M3: 2,451,161 km (0.119 R)
• M4: 4,763,795 km (0.102 R)
• M5: 5,360,541 km (0.097 R)
• M6: 6,499,279 km (0.086 R)
• M7: 6,983,378 km (0.103 R)
• M8: 7,454,462 km (0.115 R)
• M9: 10,273,484 km (0.104 R)
• M10: 10,693,405 km (0.078 R)
• M11: 15,306,555 km (0.088 R)
• M12: 26,084,483 km (0.1 R)
• M13: 31,313,078 km (0.073 R)
• M14: 32,897,619 km (0.106 R)
• M15: 34,017,509 km (0.103 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 546 - 13,471 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit