🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.49 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.97 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.29

Radius: 1.11

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.78 AU - 1.16 AU

Year: 360 Days

Day: 43.6 Hours

Environment

Temp: 34 °C

Axial Tilt: 35.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.52

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.93 AU - 1.05 AU

Year: 371 Days

Day: 46.4 Hours

Environment

Temp: 3 °C

Axial Tilt: 34.7 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 57,179,200 km

• M1: 122,670 km (0.044 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.33

Radius: 0.64

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 1.55 AU - 2.43 AU

Year: 1058 Days

Day: 37.5 Hours

Environment

Temp: -80 °C

Axial Tilt: 42.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 57,179,200 km

• M1: 803,789 km (0.034 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.92

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 1.86 AU - 2.9 AU

Year: 1383 Days

Day: 23.9 Hours

Environment

Temp: -92 °C

Axial Tilt: 6.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.02 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.18

Radius: 1.07

Gravity: 1.03 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 2.57 AU - 3.47 AU

Year: 1977 Days

Day: 31.7 Hours

Environment

Temp: -101 °C

Axial Tilt: 177 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 57,179,200 km

• M1: 73,901 km (0.094 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.46

Radius: 0.73

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 3.26 AU - 5.24 AU

Year: 3301 Days

Day: 39.7 Hours

Environment

Temp: -143 °C

Axial Tilt: 3.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 7 - Gas Giant

Semi-Major Axis: 4.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 283

Radius: 13.4

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 3.65 AU - 5.17 AU

Year: 3489 Days

Day: 14 Hours

Environment

Temp: -129 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 57,179,200 km

• M1: 167,699 km (0.059 R)
• M2: 1,419,235 km (0.09 R)
• M3: 1,850,376 km (0.098 R)
• M4: 3,766,126 km (0.092 R)
• M5: 4,203,700 km (0.074 R)
• M6: 4,739,410 km (0.08 R)
• M7: 5,297,410 km (0.059 R)
• M8: 6,333,974 km (0.066 R)
• M9: 6,845,299 km (0.084 R)
• M10: 7,829,803 km (0.099 R)
• M11: 8,774,813 km (0.054 R)
• M12: 9,689,155 km (0.083 R)
• M13: 11,392,027 km (0.037 R)
• M14: 12,605,266 km (0.097 R)
• M15: 14,676,897 km (0.108 R)
• M16: 15,192,861 km (0.11 R)
• M17: 15,964,935 km (0.103 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 494.6

Radius: 10

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 4.68 AU - 6.3 AU

Year: 4846 Days

Day: 8.6 Hours

Environment

Temp: -151 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 57,179,200 km

• M1: 124,615 km (0.116 R)
• M2: 458,368 km (0.032 R)
• M3: 957,576 km (0.078 R)
• M4: 1,573,321 km (0.074 R)
• M5: 2,813,786 km (0.068 R)
• M6: 3,288,460 km (0.102 R)
• M7: 3,794,550 km (0.089 R)
• M8: 4,145,357 km (0.061 R)
• M9: 5,630,714 km (0.096 R)
• M10: 5,971,797 km (0.107 R)
• M11: 6,357,012 km (0.089 R)
• M12: 6,758,682 km (0.117 R)
• M13: 7,177,107 km (0.12 R)
• M14: 9,416,588 km (0.058 R)
• M15: 10,145,578 km (0.116 R)
• M16: 11,398,610 km (0.093 R)
• M17: 14,053,972 km (0.086 R)
• M18: 15,887,443 km (0.089 R)
• M19: 18,119,294 km (0.101 R)
• M20: 18,489,998 km (0.116 R)
• M21: 18,802,657 km (0.086 R)
• M22: 21,986,848 km (0.033 R)
• M23: 25,206,493 km (0.059 R)

Planet 9 - Gas Giant

Semi-Major Axis: 10.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 650.4

Radius: 10

Gravity: 6.5 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 8.5 AU - 13.1 AU

Year: 13371 Days

Day: 10.7 Hours

Environment

Temp: -175 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 57,179,200 km

• M1: 125,213 km (0.098 R)
• M2: 446,101 km (0.068 R)
• M3: 923,019 km (0.09 R)
• M4: 1,993,990 km (0.099 R)
• M5: 2,698,596 km (0.091 R)
• M6: 3,230,416 km (0.065 R)
• M7: 3,721,397 km (0.072 R)
• M8: 4,114,540 km (0.101 R)
• M9: 5,118,342 km (0.071 R)
• M10: 5,534,224 km (0.108 R)
• M11: 6,919,350 km (0.071 R)
• M12: 8,959,566 km (0.101 R)
• M13: 10,197,937 km (0.075 R)
• M14: 10,858,262 km (0.112 R)
• M15: 12,448,188 km (0.077 R)
• M16: 12,821,585 km (0.099 R)
• M17: 13,590,967 km (0.064 R)
• M18: 18,948,964 km (0.084 R)
• M19: 19,277,780 km (0.06 R)
• M20: 22,228,598 km (0.072 R)
• M21: 26,070,421 km (0.054 R)
• M22: 32,512,255 km (0.109 R)
• M23: 34,670,803 km (0.068 R)
• M24: 42,274,413 km (0.108 R)
• M25: 42,977,673 km (0.045 R)
• M26: 48,273,438 km (0.118 R)
• M27: 50,288,072 km (0.119 R)
• M28: 50,760,801 km (0.087 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 206 - 12,474 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit