🌌 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: 0.29

Radius: 0.61

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 0.8 AU - 0.92 AU

Year: 280 Days

Day: 35.6 Hours

Environment

Temp: 122 °C

Axial Tilt: 22.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.02

Radius: 1.32

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 1.07 AU - 1.37 AU

Year: 474 Days

Day: 36.7 Hours

Environment

Temp: 18 °C

Axial Tilt: 7.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.24 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.62

Radius: 0.83

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 1 AU - 1.48 AU

Year: 485 Days

Day: 41.4 Hours

Environment

Temp: 28 °C

Axial Tilt: 16.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.26 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.3

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 1.11 AU - 1.41 AU

Year: 497 Days

Day: 35.1 Hours

Environment

Temp: 5 °C

Axial Tilt: 37.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.47 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.16

Radius: 1.36

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 1.37 AU - 1.57 AU

Year: 626 Days

Day: 23.5 Hours

Environment

Temp: 11 °C

Axial Tilt: 25.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 6 - Terrestrial

Semi-Major Axis: 2.38 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.65

Radius: 0.84

Gravity: 0.92 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 1.96 AU - 2.8 AU

Year: 1290 Days

Day: 15 Hours

Environment

Temp: -69 °C

Axial Tilt: 21.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 75,635,055 km

• M1: 88,712 km (0.057 R)
• M2: 375,491 km (0.075 R)

Planet 7 - Terrestrial

Semi-Major Axis: 2.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.51

Radius: 1.45

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 2.09 AU - 3.41 AU

Year: 1603 Days

Day: 36.3 Hours

Environment

Temp: -88 °C

Axial Tilt: 43.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 75,635,055 km

• M1: 1,816,717 km (0.102 R)

Planet 8 - Terrestrial

Semi-Major Axis: 3.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.33

Radius: 1.8

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 3.68 AU - 4.04 AU

Year: 2665 Days

Day: 47.3 Hours

Environment

Temp: -106 °C

Axial Tilt: 36.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 9 - Gas Giant

Semi-Major Axis: 10.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 114.2

Radius: 9.6

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 9.92 AU - 11.18 AU

Year: 12044 Days

Day: 8.2 Hours

Environment

Temp: -181 °C

Axial Tilt: 48.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 75,635,055 km

• M1: 505,342 km (0.098 R)
• M2: 922,420 km (0.073 R)
• M3: 3,227,125 km (0.111 R)
• M4: 4,776,959 km (0.039 R)
• M5: 9,763,505 km (0.056 R)
• M6: 11,785,470 km (0.073 R)
• M7: 13,751,186 km (0.092 R)
• M8: 14,342,995 km (0.059 R)
• M9: 17,311,316 km (0.085 R)
• M10: 18,579,607 km (0.064 R)
• M11: 23,054,378 km (0.114 R)
• M12: 24,198,353 km (0.115 R)
• M13: 25,061,084 km (0.092 R)
• M14: 29,773,567 km (0.058 R)

Planet 10 - Ice Giant

Semi-Major Axis: 13.4 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 905.5

Radius: 6.8

Gravity: 19.58 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 12.23 AU - 14.57 AU

Year: 17240 Days

Day: 17 Hours

Environment

Temp: -192 °C

Axial Tilt: 17.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 75,635,055 km

• M1: 84,672 km (0.079 R)
• M2: 339,587 km (0.076 R)
• M3: 899,981 km (0.119 R)
• M4: 1,195,586 km (0.112 R)
• M5: 1,621,791 km (0.105 R)
• M6: 2,083,898 km (0.055 R)
• M7: 2,849,241 km (0.096 R)
• M8: 3,493,260 km (0.073 R)
• M9: 4,005,333 km (0.077 R)
• M10: 4,262,941 km (0.116 R)
• M11: 4,635,440 km (0.06 R)
• M12: 6,049,588 km (0.042 R)
• M13: 7,154,369 km (0.064 R)
• M14: 7,729,872 km (0.119 R)
• M15: 9,814,518 km (0.119 R)
• M16: 10,047,591 km (0.106 R)
• M17: 10,646,432 km (0.114 R)
• M18: 11,524,422 km (0.116 R)
• M19: 14,149,715 km (0.113 R)
• M20: 18,090,422 km (0.065 R)
• M21: 25,337,691 km (0.104 R)
• M22: 27,239,379 km (0.06 R)
• M23: 28,166,287 km (0.073 R)
• M24: 30,328,575 km (0.1 R)
• M25: 33,118,725 km (0.068 R)
• M26: 42,046,277 km (0.077 R)
• M27: 44,703,883 km (0.106 R)
• M28: 45,506,326 km (0.101 R)
• M29: 56,455,992 km (0.078 R)
• M30: 65,887,839 km (0.103 R)
• M31: 66,509,867 km (0.059 R)
• M32: 69,894,070 km (0.065 R)
• M33: 70,324,912 km (0.101 R)
• M34: 74,732,065 km (0.031 R)

Kuiper Belt

Range: 31.2 - 46.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 339 - 14,050 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit