🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.6 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.6

Radius: 0.82

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.06 AU - 1.32 AU

Year: 452 Days

Day: 16.5 Hours

Environment

Temp: 14 °C

Axial Tilt: 31.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.34 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.98

Radius: 0.99

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 1.24 AU - 1.44 AU

Year: 540 Days

Day: 30.2 Hours

Environment

Temp: 14 °C

Axial Tilt: 5.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 2.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.22

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 2.6 AU - 3 AU

Year: 1632 Days

Day: 24.3 Hours

Environment

Temp: -86 °C

Axial Tilt: 3.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 47,894,383 km

• M1: 258,505 km (0.075 R)
• M2: 2,013,139 km (0.118 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.57

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.055

Orbit Range: 2.73 AU - 3.05 AU

Year: 1711 Days

Day: 13 Hours

Environment

Temp: -88 °C

Axial Tilt: 39 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.23 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.64

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 3.82 AU - 4.64 AU

Year: 3030 Days

Day: 39.1 Hours

Environment

Temp: -108 °C

Axial Tilt: 13.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 47,894,383 km

• M1: 192,682 km (0.113 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.87 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.79

Radius: 0.91

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 3.85 AU - 5.89 AU

Year: 3743 Days

Day: 16.7 Hours

Environment

Temp: -131 °C

Axial Tilt: 10.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 7.07 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 9.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 804.4

Radius: 11.8

Gravity: 5.78 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 8.43 AU - 10.09 AU

Year: 9813 Days

Day: 11 Hours

Environment

Temp: -170 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 47,894,383 km

• M1: 147,504 km (0.102 R)
• M2: 521,648 km (0.111 R)
• M3: 1,021,903 km (0.116 R)
• M4: 1,840,203 km (0.028 R)
• M5: 2,528,354 km (0.037 R)
• M6: 2,922,245 km (0.081 R)
• M7: 4,161,065 km (0.105 R)
• M8: 4,714,278 km (0.068 R)
• M9: 6,674,309 km (0.045 R)
• M10: 7,269,709 km (0.084 R)
• M11: 9,912,056 km (0.08 R)
• M12: 11,560,026 km (0.071 R)
• M13: 12,895,785 km (0.068 R)
• M14: 14,202,971 km (0.062 R)
• M15: 15,256,739 km (0.078 R)
• M16: 16,361,968 km (0.084 R)
• M17: 16,861,924 km (0.078 R)
• M18: 19,676,159 km (0.081 R)
• M19: 20,160,407 km (0.096 R)
• M20: 21,746,294 km (0.042 R)
• M21: 22,878,302 km (0.034 R)
• M22: 23,957,650 km (0.088 R)
• M23: 25,927,854 km (0.11 R)
• M24: 28,823,171 km (0.077 R)
• M25: 31,596,566 km (0.111 R)
• M26: 36,444,884 km (0.061 R)
• M27: 38,040,644 km (0.075 R)
• M28: 39,299,361 km (0.119 R)
• M29: 40,977,101 km (0.104 R)
• M30: 44,613,526 km (0.066 R)
• M31: 48,752,899 km (0.058 R)

Planet 8 - Ice Giant

Semi-Major Axis: 13.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 208.9

Radius: 5.6

Gravity: 6.66 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 11.02 AU - 16.82 AU

Year: 18086 Days

Day: 19.7 Hours

Environment

Temp: -177 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 47,894,383 km

• M1: 69,713 km (0.103 R)
• M2: 382,372 km (0.079 R)
• M3: 674,537 km (0.102 R)
• M4: 900,579 km (0.084 R)
• M5: 2,531,645 km (0.064 R)
• M6: 3,463,191 km (0.085 R)
• M7: 3,979,154 km (0.118 R)
• M8: 5,835,065 km (0.095 R)
• M9: 6,192,305 km (0.118 R)
• M10: 7,726,580 km (0.113 R)
• M11: 8,973,179 km (0.116 R)
• M12: 11,085,950 km (0.104 R)
• M13: 16,055,292 km (0.088 R)
• M14: 17,845,829 km (0.1 R)
• M15: 19,370,979 km (0.12 R)
• M16: 20,570,306 km (0.07 R)
• M17: 20,898,224 km (0.12 R)
• M18: 21,396,834 km (0.092 R)
• M19: 22,939,936 km (0.041 R)
• M20: 23,649,179 km (0.106 R)
• M21: 24,009,112 km (0.104 R)
• M22: 26,826,489 km (0.09 R)
• M23: 27,316,422 km (0.119 R)
• M24: 27,514,190 km (0.107 R)
• M25: 29,856,593 km (0.105 R)
• M26: 31,453,850 km (0.116 R)
• M27: 31,671,066 km (0.06 R)
• M28: 35,050,183 km (0.086 R)
• M29: 38,662,074 km (0.099 R)
• M30: 41,986,438 km (0.09 R)
• M31: 42,514,219 km (0.039 R)
• M32: 45,496,602 km (0.092 R)
• M33: 46,193,279 km (0.087 R)
• M34: 47,465,310 km (0.055 R)

Kuiper Belt

Range: 31.5 - 47.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 273 - 16,827 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit