🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.8

Radius: 0.91

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 0.56 AU - 0.6 AU

Year: 168 Days

Day: 25.8 Hours

Environment

Temp: 129 °C

Axial Tilt: 35.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.67

Radius: 0.85

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.72 AU - 1.02 AU

Year: 309 Days

Day: 34 Hours

Environment

Temp: 40 °C

Axial Tilt: 27.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (2)

Outer Limit: 72,696,449 km

• M1: 51,162 km (0.045 R)
• M2: 388,954 km (0.094 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.12 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.36

Radius: 1.62

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 1.11 AU - 1.13 AU

Year: 451 Days

Day: 43.1 Hours

Environment

Temp: 4 °C

Axial Tilt: 47.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 72,696,449 km

• M1: 39,344 km (0.114 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.95

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.58 AU - 1.96 AU

Year: 897 Days

Day: 39.7 Hours

Environment

Temp: -74 °C

Axial Tilt: 27.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 72,696,449 km

• M1: 931,097 km (0.118 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.14

Radius: 1.58

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.46 AU - 2.18 AU

Year: 935 Days

Day: 20.8 Hours

Environment

Temp: -68 °C

Axial Tilt: 59.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 72,696,449 km

• M1: 157,377 km (0.112 R)

Asteroid Belt

Center: 4.17 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 6.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 914.1

Radius: 10.5

Gravity: 8.29 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 5.35 AU - 7.69 AU

Year: 6340 Days

Day: 9.1 Hours

Environment

Temp: -154 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 72,696,449 km

• M1: 130,749 km (0.099 R)
• M2: 474,824 km (0.05 R)
• M3: 1,097,001 km (0.08 R)
• M4: 1,438,533 km (0.063 R)
• M5: 2,362,898 km (0.092 R)
• M6: 3,047,458 km (0.119 R)
• M7: 3,691,178 km (0.12 R)
• M8: 4,982,357 km (0.074 R)
• M9: 6,040,912 km (0.084 R)
• M10: 6,413,710 km (0.12 R)
• M11: 6,766,012 km (0.029 R)
• M12: 7,782,231 km (0.091 R)
• M13: 8,983,951 km (0.029 R)
• M14: 9,606,577 km (0.057 R)
• M15: 10,987,814 km (0.103 R)
• M16: 12,014,654 km (0.03 R)
• M17: 12,442,952 km (0.031 R)
• M18: 18,978,135 km (0.057 R)
• M19: 20,302,974 km (0.102 R)
• M20: 25,164,456 km (0.079 R)
• M21: 27,401,094 km (0.111 R)
• M22: 30,651,108 km (0.093 R)
• M23: 38,250,081 km (0.059 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 604.3

Radius: 10.4

Gravity: 5.59 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 6.81 AU - 9.61 AU

Year: 8958 Days

Day: 13.5 Hours

Environment

Temp: -181 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 72,696,449 km

• M1: 129,701 km (0.116 R)
• M2: 576,700 km (0.119 R)
• M3: 1,337,704 km (0.115 R)
• M4: 2,916,859 km (0.069 R)
• M5: 3,262,281 km (0.12 R)
• M6: 3,907,796 km (0.116 R)
• M7: 4,466,992 km (0.106 R)
• M8: 4,810,170 km (0.103 R)
• M9: 6,014,882 km (0.108 R)
• M10: 7,176,659 km (0.113 R)
• M11: 8,353,545 km (0.103 R)
• M12: 8,787,828 km (0.099 R)
• M13: 9,560,800 km (0.117 R)
• M14: 10,627,582 km (0.114 R)
• M15: 14,989,707 km (0.037 R)
• M16: 18,458,881 km (0.103 R)
• M17: 19,649,082 km (0.034 R)
• M18: 20,731,871 km (0.12 R)
• M19: 21,691,242 km (0.103 R)
• M20: 22,181,774 km (0.118 R)
• M21: 22,596,310 km (0.062 R)
• M22: 23,526,509 km (0.051 R)
• M23: 28,175,263 km (0.11 R)
• M24: 29,551,115 km (0.098 R)
• M25: 35,278,918 km (0.094 R)
• M26: 37,224,887 km (0.102 R)
• M27: 38,640,831 km (0.108 R)
• M28: 39,120,741 km (0.03 R)
• M29: 42,210,685 km (0.094 R)

Planet 8 - Ice Giant

Semi-Major Axis: 18.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 248.8

Radius: 3.3

Gravity: 22.85 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 18.52 AU - 19.04 AU

Year: 30991 Days

Day: 19.8 Hours

Environment

Temp: -203 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 72,696,449 km

• M1: 40,990 km (0.082 R)
• M2: 291,117 km (0.076 R)
• M3: 516,113 km (0.045 R)
• M4: 666,907 km (0.114 R)
• M5: 890,855 km (0.11 R)
• M6: 1,203,814 km (0.118 R)
• M7: 2,489,458 km (0.087 R)
• M8: 6,104,341 km (0.105 R)
• M9: 7,113,080 km (0.083 R)
• M10: 7,681,103 km (0.116 R)
• M11: 8,076,191 km (0.115 R)
• M12: 8,484,593 km (0.114 R)
• M13: 13,355,200 km (0.116 R)
• M14: 16,050,505 km (0.058 R)
• M15: 16,613,741 km (0.093 R)
• M16: 17,524,942 km (0.119 R)
• M17: 25,283,686 km (0.081 R)
• M18: 26,045,139 km (0.067 R)
• M19: 27,728,414 km (0.117 R)
• M20: 34,919,135 km (0.05 R)
• M21: 35,862,948 km (0.119 R)
• M22: 44,346,344 km (0.063 R)
• M23: 50,744,645 km (0.066 R)
• M24: 53,538,236 km (0.06 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 398 - 18,276 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit