🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.51 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.57

Radius: 1.66

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.83 AU - 1.21 AU

Year: 380 Days

Day: 17.4 Hours

Environment

Temp: 30 °C

Axial Tilt: 19.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.86

Radius: 0.94

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.64 AU - 2.34 AU

Year: 1036 Days

Day: 23.3 Hours

Environment

Temp: -75 °C

Axial Tilt: 6.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 2.11 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.93

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.78 AU - 2.44 AU

Year: 1131 Days

Day: 14.4 Hours

Environment

Temp: -77 °C

Axial Tilt: 4.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.31

Radius: 1.61

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 1.76 AU - 2.8 AU

Year: 1270 Days

Day: 17.7 Hours

Environment

Temp: -72 °C

Axial Tilt: 39.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 71,202,262 km

• M1: 482,752 km (0.1 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.46 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.64

Radius: 1.68

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 3.33 AU - 3.59 AU

Year: 2375 Days

Day: 15.5 Hours

Environment

Temp: -113 °C

Axial Tilt: 20.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 71,202,262 km

• M1: 41,439 km (0.104 R)

Asteroid Belt

Center: 4.92 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 6.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 235.9

Radius: 10

Gravity: 2.36 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 6.05 AU - 6.71 AU

Year: 5946 Days

Day: 12.3 Hours

Environment

Temp: -159 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 71,202,262 km

• M1: 126,709 km (0.058 R)
• M2: 446,998 km (0.085 R)
• M3: 801,545 km (0.073 R)
• M4: 1,390,662 km (0.056 R)
• M5: 2,206,868 km (0.098 R)
• M6: 3,428,185 km (0.069 R)
• M7: 4,523,989 km (0.073 R)
• M8: 4,904,267 km (0.067 R)
• M9: 5,949,507 km (0.098 R)
• M10: 7,753,508 km (0.048 R)
• M11: 8,126,456 km (0.117 R)
• M12: 8,726,343 km (0.065 R)
• M13: 10,094,266 km (0.117 R)
• M14: 11,776,045 km (0.05 R)
• M15: 12,964,750 km (0.106 R)
• M16: 14,382,938 km (0.108 R)
• M17: 15,472,609 km (0.077 R)
• M18: 16,229,125 km (0.086 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 503.6

Radius: 12.7

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 7.8 AU - 12.26 AU

Year: 11720 Days

Day: 14.2 Hours

Environment

Temp: -186 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 71,202,262 km

• M1: 157,975 km (0.051 R)
• M2: 675,285 km (0.1 R)
• M3: 1,376,001 km (0.105 R)
• M4: 2,109,180 km (0.105 R)
• M5: 3,709,130 km (0.111 R)
• M6: 6,221,626 km (0.096 R)
• M7: 7,456,706 km (0.096 R)
• M8: 8,002,738 km (0.093 R)
• M9: 8,440,910 km (0.08 R)
• M10: 10,562,956 km (0.111 R)
• M11: 10,984,074 km (0.051 R)
• M12: 12,547,073 km (0.12 R)
• M13: 22,469,301 km (0.083 R)
• M14: 25,255,262 km (0.105 R)
• M15: 26,682,725 km (0.054 R)
• M16: 27,862,903 km (0.115 R)
• M17: 29,077,488 km (0.088 R)
• M18: 37,360,123 km (0.11 R)
• M19: 41,383,259 km (0.075 R)
• M20: 44,175,054 km (0.098 R)
• M21: 46,384,615 km (0.106 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 986.2

Radius: 14.7

Gravity: 4.56 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 11.19 AU - 12.55 AU

Year: 15089 Days

Day: 6.2 Hours

Environment

Temp: -185 °C

Axial Tilt: 1.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 71,202,262 km

• M1: 184,604 km (0.086 R)
• M2: 717,621 km (0.119 R)
• M3: 1,227,301 km (0.114 R)
• M4: 1,879,248 km (0.099 R)
• M5: 2,445,177 km (0.077 R)
• M6: 3,023,672 km (0.113 R)
• M7: 3,664,699 km (0.104 R)
• M8: 5,113,405 km (0.092 R)
• M9: 6,697,646 km (0.082 R)
• M10: 7,842,220 km (0.116 R)
• M11: 8,487,136 km (0.045 R)
• M12: 9,007,138 km (0.087 R)
• M13: 10,997,239 km (0.112 R)
• M14: 11,998,647 km (0.073 R)
• M15: 12,588,212 km (0.051 R)
• M16: 14,474,043 km (0.118 R)
• M17: 15,987,824 km (0.082 R)
• M18: 16,461,899 km (0.057 R)
• M19: 16,945,400 km (0.092 R)
• M20: 18,025,646 km (0.044 R)
• M21: 27,023,359 km (0.109 R)
• M22: 34,537,511 km (0.105 R)
• M23: 39,627,878 km (0.092 R)
• M24: 41,826,966 km (0.051 R)
• M25: 47,760,317 km (0.105 R)
• M26: 52,823,607 km (0.09 R)
• M27: 54,409,793 km (0.104 R)
• M28: 55,484,803 km (0.098 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 252 - 14,684 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit