🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.77

Radius: 1.5

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 0.72 AU - 0.76 AU

Year: 233 Days

Day: 46.8 Hours

Environment

Temp: 145 °C

Axial Tilt: 6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.19

Radius: 1.59

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.64 AU - 1 AU

Year: 271 Days

Day: 16.8 Hours

Environment

Temp: 113 °C

Axial Tilt: 23.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.24 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.52

Radius: 1.65

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 1.23 AU - 1.25 AU

Year: 504 Days

Day: 46.7 Hours

Environment

Temp: 5 °C

Axial Tilt: 37.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 3.22 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.69

Radius: 1.69

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 2.74 AU - 3.7 AU

Year: 2110 Days

Day: 35.5 Hours

Environment

Temp: -102 °C

Axial Tilt: 36.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 66,108,732 km

• M1: 502,200 km (0.112 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.49

Radius: 1.17

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 3.18 AU - 4.06 AU

Year: 2516 Days

Day: 30.7 Hours

Environment

Temp: -124 °C

Axial Tilt: 49.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 7.89 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 12.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 598.4

Radius: 11.5

Gravity: 4.52 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 11.55 AU - 12.75 AU

Year: 15469 Days

Day: 9.6 Hours

Environment

Temp: -179 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 66,108,732 km

• M1: 145,260 km (0.115 R)
• M2: 542,891 km (0.078 R)
• M3: 977,772 km (0.109 R)
• M4: 2,222,725 km (0.117 R)
• M5: 2,878,562 km (0.065 R)
• M6: 3,524,675 km (0.074 R)
• M7: 6,172,558 km (0.1 R)
• M8: 6,696,001 km (0.12 R)
• M9: 7,832,047 km (0.067 R)
• M10: 9,401,478 km (0.048 R)
• M11: 10,766,260 km (0.072 R)
• M12: 12,573,551 km (0.115 R)
• M13: 15,431,918 km (0.088 R)
• M14: 20,580,777 km (0.034 R)
• M15: 22,027,239 km (0.09 R)
• M16: 25,527,680 km (0.083 R)
• M17: 26,772,484 km (0.116 R)
• M18: 28,384,999 km (0.095 R)
• M19: 30,865,481 km (0.079 R)
• M20: 32,158,605 km (0.103 R)
• M21: 32,637,618 km (0.118 R)
• M22: 35,357,906 km (0.103 R)
• M23: 45,164,345 km (0.106 R)
• M24: 48,222,574 km (0.119 R)
• M25: 50,604,921 km (0.058 R)
• M26: 52,566,597 km (0.097 R)
• M27: 53,733,910 km (0.084 R)
• M28: 56,640,895 km (0.107 R)
• M29: 58,221,547 km (0.111 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 514.8

Radius: 7.3

Gravity: 9.66 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 11.33 AU - 16.23 AU

Year: 18684 Days

Day: 18.6 Hours

Environment

Temp: -188 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 66,108,732 km

• M1: 90,806 km (0.097 R)
• M2: 366,365 km (0.044 R)
• M3: 684,859 km (0.11 R)
• M4: 915,090 km (0.101 R)
• M5: 1,291,778 km (0.084 R)
• M6: 1,555,519 km (0.097 R)
• M7: 2,873,027 km (0.037 R)
• M8: 5,947,712 km (0.094 R)
• M9: 6,350,579 km (0.113 R)
• M10: 6,771,398 km (0.105 R)
• M11: 8,899,727 km (0.071 R)
• M12: 9,427,059 km (0.113 R)
• M13: 11,622,558 km (0.091 R)
• M14: 13,718,574 km (0.064 R)
• M15: 14,565,597 km (0.057 R)
• M16: 15,075,576 km (0.064 R)
• M17: 17,805,737 km (0.076 R)
• M18: 19,857,771 km (0.115 R)
• M19: 20,124,953 km (0.052 R)
• M20: 24,834,593 km (0.096 R)
• M21: 27,169,516 km (0.119 R)
• M22: 28,729,224 km (0.092 R)
• M23: 31,540,317 km (0.089 R)
• M24: 35,566,744 km (0.065 R)
• M25: 35,960,935 km (0.095 R)
• M26: 37,431,182 km (0.112 R)
• M27: 40,348,491 km (0.059 R)
• M28: 50,498,856 km (0.115 R)
• M29: 50,830,514 km (0.054 R)
• M30: 52,340,854 km (0.115 R)
• M31: 54,053,899 km (0.114 R)
• M32: 54,400,966 km (0.07 R)
• M33: 57,772,155 km (0.08 R)
• M34: 59,416,684 km (0.076 R)
• M35: 65,910,877 km (0.102 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 483 - 12,820 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit