🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.46 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.91 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.52

Radius: 0.77

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 0.88 AU - 0.94 AU

Year: 314 Days

Day: 38.9 Hours

Environment

Temp: 147 °C

Axial Tilt: 7.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.06

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.01 AU - 1.15 AU

Year: 406 Days

Day: 18.1 Hours

Environment

Temp: 35 °C

Axial Tilt: 37.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.28 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.71

Radius: 0.87

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 1.24 AU - 1.32 AU

Year: 524 Days

Day: 30.4 Hours

Environment

Temp: -2 °C

Axial Tilt: 2.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.36

Radius: 1.41

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.36 AU - 1.96 AU

Year: 773 Days

Day: 25.3 Hours

Environment

Temp: -41 °C

Axial Tilt: 21 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.92

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 1.63 AU - 2.61 AU

Year: 1116 Days

Day: 19.3 Hours

Environment

Temp: -75 °C

Axial Tilt: 35.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 55,965,789 km

• M1: 251,175 km (0.117 R)

Planet 6 - Gas Giant

Semi-Major Axis: 8.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 877.3

Radius: 14.7

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 7.86 AU - 8.34 AU

Year: 8337 Days

Day: 5 Hours

Environment

Temp: -165 °C

Axial Tilt: 2.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 55,965,789 km

• M1: 182,958 km (0.065 R)
• M2: 858,243 km (0.066 R)
• M3: 1,940,584 km (0.052 R)
• M4: 2,604,798 km (0.043 R)
• M5: 3,279,185 km (0.074 R)
• M6: 3,911,386 km (0.075 R)
• M7: 4,951,091 km (0.094 R)
• M8: 6,640,649 km (0.119 R)
• M9: 13,689,103 km (0.113 R)
• M10: 17,684,712 km (0.053 R)
• M11: 19,948,577 km (0.12 R)
• M12: 20,583,620 km (0.087 R)
• M13: 22,826,840 km (0.068 R)
• M14: 23,785,912 km (0.082 R)
• M15: 24,500,242 km (0.107 R)
• M16: 26,065,634 km (0.106 R)
• M17: 37,965,396 km (0.113 R)
• M18: 39,934,104 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 590.2

Radius: 9.4

Gravity: 6.68 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 8.83 AU - 13.61 AU

Year: 13592 Days

Day: 7.2 Hours

Environment

Temp: -185 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 55,965,789 km

• M1: 116,986 km (0.089 R)
• M2: 493,972 km (0.08 R)
• M3: 787,633 km (0.025 R)
• M4: 1,409,810 km (0.096 R)
• M5: 1,732,792 km (0.116 R)
• M6: 2,292,737 km (0.101 R)
• M7: 2,615,569 km (0.115 R)
• M8: 4,166,600 km (0.107 R)
• M9: 5,343,038 km (0.081 R)
• M10: 5,989,600 km (0.111 R)
• M11: 6,527,853 km (0.109 R)
• M12: 7,352,287 km (0.056 R)
• M13: 8,291,163 km (0.103 R)
• M14: 8,717,068 km (0.084 R)
• M15: 9,924,921 km (0.071 R)
• M16: 12,981,505 km (0.094 R)
• M17: 14,015,376 km (0.066 R)
• M18: 14,484,515 km (0.104 R)
• M19: 16,839,036 km (0.114 R)
• M20: 18,225,509 km (0.055 R)
• M21: 20,190,477 km (0.115 R)
• M22: 21,224,048 km (0.078 R)
• M23: 24,536,594 km (0.07 R)
• M24: 26,518,317 km (0.11 R)
• M25: 29,797,353 km (0.098 R)
• M26: 34,657,787 km (0.12 R)
• M27: 42,341,882 km (0.096 R)
• M28: 43,890,070 km (0.056 R)
• M29: 44,606,046 km (0.038 R)
• M30: 45,039,281 km (0.106 R)
• M31: 46,652,246 km (0.059 R)

Kuiper Belt

Range: 30.3 - 54.3 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 436 - 12,108 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit