🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.86 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.62

Radius: 1.21

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 0.75 AU - 0.97 AU

Year: 280 Days

Day: 17.4 Hours

Environment

Temp: 176 °C

Axial Tilt: 27.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.88

Radius: 1.29

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 1.2 AU - 1.26 AU

Year: 479 Days

Day: 33.1 Hours

Environment

Temp: 10 °C

Axial Tilt: 17.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.27

Radius: 1.79

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.7 AU - 2.48 AU

Year: 1062 Days

Day: 33.3 Hours

Environment

Temp: -63 °C

Axial Tilt: 37.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 86,805,149 km

• M1: 111,301 km (0.074 R)
• M2: 1,803,702 km (0.099 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.57

Radius: 1.66

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 2.26 AU - 2.34 AU

Year: 1226 Days

Day: 27.5 Hours

Environment

Temp: -74 °C

Axial Tilt: 6.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 8.08 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Ice Giant

Semi-Major Axis: 13.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 688.9

Radius: 7.1

Gravity: 13.67 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 11.83 AU - 15.87 AU

Year: 18116 Days

Day: 17.1 Hours

Environment

Temp: -179 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 86,805,149 km

• M1: 88,412 km (0.085 R)
• M2: 702,362 km (0.102 R)
• M3: 1,384,977 km (0.081 R)
• M4: 3,092,188 km (0.098 R)
• M5: 6,846,795 km (0.074 R)
• M6: 7,208,673 km (0.064 R)
• M7: 7,535,843 km (0.076 R)
• M8: 7,921,806 km (0.066 R)
• M9: 8,270,369 km (0.116 R)
• M10: 9,432,595 km (0.108 R)
• M11: 10,942,037 km (0.118 R)
• M12: 13,149,952 km (0.103 R)
• M13: 14,212,396 km (0.065 R)
• M14: 15,950,723 km (0.119 R)
• M15: 16,187,537 km (0.032 R)
• M16: 20,860,974 km (0.098 R)
• M17: 21,334,601 km (0.119 R)
• M18: 27,476,043 km (0.107 R)
• M19: 28,621,813 km (0.085 R)
• M20: 29,679,918 km (0.119 R)
• M21: 34,305,036 km (0.031 R)
• M22: 36,309,348 km (0.073 R)
• M23: 37,688,192 km (0.034 R)
• M24: 41,584,917 km (0.104 R)
• M25: 42,334,851 km (0.089 R)
• M26: 44,171,314 km (0.098 R)
• M27: 44,952,066 km (0.037 R)
• M28: 45,424,795 km (0.067 R)
• M29: 47,024,744 km (0.035 R)
• M30: 48,166,924 km (0.097 R)
• M31: 51,531,829 km (0.114 R)
• M32: 53,447,579 km (0.107 R)
• M33: 69,039,567 km (0.094 R)

Planet 6 - Ice Giant

Semi-Major Axis: 18.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 489.4

Radius: 4.6

Gravity: 23.13 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 14.65 AU - 23.11 AU

Year: 28832 Days

Day: 16.7 Hours

Environment

Temp: -193 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 86,805,149 km

• M1: 57,146 km (0.063 R)
• M2: 380,278 km (0.101 R)
• M3: 671,246 km (0.097 R)
• M4: 883,824 km (0.097 R)
• M5: 1,045,390 km (0.083 R)
• M6: 1,348,625 km (0.087 R)
• M7: 2,542,715 km (0.099 R)
• M8: 3,650,487 km (0.113 R)
• M9: 3,808,463 km (0.061 R)
• M10: 5,485,156 km (0.07 R)
• M11: 7,197,752 km (0.028 R)
• M12: 8,067,963 km (0.112 R)
• M13: 10,325,694 km (0.102 R)
• M14: 11,362,557 km (0.12 R)
• M15: 16,291,956 km (0.119 R)
• M16: 21,235,867 km (0.113 R)
• M17: 24,434,419 km (0.071 R)
• M18: 30,067,526 km (0.114 R)
• M19: 34,925,268 km (0.088 R)
• M20: 36,654,021 km (0.111 R)
• M21: 37,242,689 km (0.111 R)
• M22: 37,987,387 km (0.107 R)
• M23: 40,437,052 km (0.042 R)
• M24: 50,924,162 km (0.104 R)
• M25: 59,780,207 km (0.09 R)
• M26: 65,427,975 km (0.12 R)
• M27: 66,076,631 km (0.047 R)

Kuiper Belt

Range: 31.2 - 52.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 393 - 18,030 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit