🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.25

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.41 AU - 0.63 AU

Year: 134 Days

Day: 46.1 Hours

Environment

Temp: 189 °C

Axial Tilt: 27.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.21

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.78 AU - 0.92 AU

Year: 279 Days

Day: 13.7 Hours

Environment

Temp: 153 °C

Axial Tilt: 33.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 107,470,464 km

• M1: 37,250 km (0.032 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.43 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.22

Radius: 1.08

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 1.36 AU - 1.5 AU

Year: 610 Days

Day: 47.1 Hours

Environment

Temp: 5 °C

Axial Tilt: 14.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.67

Radius: 1.48

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 1.62 AU - 2 AU

Year: 868 Days

Day: 39.9 Hours

Environment

Temp: -52 °C

Axial Tilt: 68.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.88

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 3.64 AU - 3.96 AU

Year: 2640 Days

Day: 20.2 Hours

Environment

Temp: -112 °C

Axial Tilt: 26.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 107,470,464 km

• M1: 1,202,168 km (0.027 R)

Planet 6 - Terrestrial

Semi-Major Axis: 4.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.85

Radius: 1.52

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 4.51 AU - 4.71 AU

Year: 3528 Days

Day: 33.1 Hours

Environment

Temp: -125 °C

Axial Tilt: 6.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 8.33 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 12.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 725.5

Radius: 8.1

Gravity: 11.06 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 11.85 AU - 12.25 AU

Year: 14910 Days

Day: 11.9 Hours

Environment

Temp: -188 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 107,470,464 km

• M1: 100,979 km (0.106 R)
• M2: 391,946 km (0.093 R)
• M3: 895,792 km (0.113 R)
• M4: 1,194,090 km (0.068 R)
• M5: 1,718,580 km (0.097 R)
• M6: 1,979,180 km (0.081 R)
• M7: 2,409,573 km (0.1 R)
• M8: 2,669,873 km (0.113 R)
• M9: 3,273,650 km (0.113 R)
• M10: 4,424,806 km (0.092 R)
• M11: 4,988,191 km (0.1 R)
• M12: 6,626,737 km (0.081 R)
• M13: 6,881,053 km (0.098 R)
• M14: 8,300,288 km (0.117 R)
• M15: 9,261,006 km (0.11 R)
• M16: 10,181,781 km (0.095 R)
• M17: 10,809,344 km (0.114 R)
• M18: 13,110,159 km (0.113 R)
• M19: 15,274,391 km (0.091 R)
• M20: 15,644,347 km (0.074 R)
• M21: 19,594,329 km (0.118 R)
• M22: 24,162,599 km (0.089 R)
• M23: 24,868,252 km (0.118 R)
• M24: 30,898,692 km (0.045 R)
• M25: 32,943,246 km (0.073 R)
• M26: 42,460,663 km (0.1 R)
• M27: 45,287,165 km (0.065 R)
• M28: 48,873,475 km (0.092 R)
• M29: 56,605,291 km (0.12 R)
• M30: 63,767,588 km (0.05 R)

Planet 8 - Ice Giant

Semi-Major Axis: 19.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 872.1

Radius: 5.8

Gravity: 25.92 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 16.02 AU - 22.18 AU

Year: 29754 Days

Day: 20.7 Hours

Environment

Temp: -202 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 107,470,464 km

• M1: 75,996 km (0.119 R)
• M2: 267,182 km (0.097 R)
• M3: 512,074 km (0.116 R)
• M4: 1,247,197 km (0.063 R)
• M5: 1,671,008 km (0.098 R)
• M6: 2,139,399 km (0.044 R)
• M7: 2,354,820 km (0.12 R)
• M8: 5,735,732 km (0.062 R)
• M9: 9,924,173 km (0.087 R)
• M10: 10,800,966 km (0.059 R)
• M11: 11,437,505 km (0.108 R)
• M12: 12,248,924 km (0.111 R)
• M13: 15,086,197 km (0.103 R)
• M14: 15,881,011 km (0.119 R)
• M15: 19,237,688 km (0.041 R)
• M16: 19,961,592 km (0.113 R)
• M17: 22,017,515 km (0.12 R)
• M18: 24,210,471 km (0.056 R)
• M19: 26,292,424 km (0.047 R)
• M20: 29,159,916 km (0.074 R)
• M21: 34,140,478 km (0.108 R)
• M22: 34,895,199 km (0.084 R)
• M23: 49,486,078 km (0.1 R)
• M24: 50,258,153 km (0.084 R)
• M25: 56,936,950 km (0.087 R)
• M26: 61,703,287 km (0.094 R)
• M27: 93,614,308 km (0.058 R)
• M28: 101,774,723 km (0.082 R)

Kuiper Belt

Range: 30.8 - 54.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 159 - 19,974 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit