🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.47 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.93 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.82

Radius: 1.88

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.75 AU - 1.11 AU

Year: 328 Days

Day: 16.2 Hours

Environment

Temp: 98 °C

Axial Tilt: 29.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 53,692,142 km

• M1: 52,808 km (0.12 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.33

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 0.84 AU - 1.2 AU

Year: 376 Days

Day: 46.8 Hours

Environment

Temp: 21 °C

Axial Tilt: 16.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.14 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.26

Radius: 0.58

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 0.96 AU - 1.32 AU

Year: 445 Days

Day: 23.6 Hours

Environment

Temp: 9 °C

Axial Tilt: 5.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.27 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.93

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 0.97 AU - 1.57 AU

Year: 523 Days

Day: 43.9 Hours

Environment

Temp: -11 °C

Axial Tilt: 42.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.3 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.97

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.29 AU - 1.31 AU

Year: 541 Days

Day: 24.8 Hours

Environment

Temp: -4 °C

Axial Tilt: 25.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 6 - Terrestrial

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.11

Radius: 1.76

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 1.41 AU - 2.09 AU

Year: 846 Days

Day: 17.8 Hours

Environment

Temp: -48 °C

Axial Tilt: 17.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 53,692,142 km

• M1: 1,353,412 km (0.119 R)

Planet 7 - Terrestrial

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.59

Radius: 0.81

Gravity: 0.9 G

Time & Orbit

Eccentricity (e): 0.158

Orbit Range: 1.52 AU - 2.1 AU

Year: 889 Days

Day: 28.8 Hours

Environment

Temp: -62 °C

Axial Tilt: 0 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Gas Giant

Semi-Major Axis: 7.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 622.8

Radius: 15

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.096

Orbit Range: 6.54 AU - 7.92 AU

Year: 7101 Days

Day: 14.7 Hours

Environment

Temp: -169 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 53,692,142 km

• M1: 186,848 km (0.071 R)
• M2: 694,882 km (0.112 R)
• M3: 1,472,342 km (0.103 R)
• M4: 2,236,339 km (0.116 R)
• M5: 3,049,403 km (0.025 R)
• M6: 3,696,264 km (0.049 R)
• M7: 4,177,521 km (0.096 R)
• M8: 5,692,199 km (0.117 R)
• M9: 8,169,091 km (0.058 R)
• M10: 11,395,468 km (0.111 R)
• M11: 12,371,894 km (0.084 R)
• M12: 15,147,981 km (0.113 R)
• M13: 16,138,319 km (0.071 R)
• M14: 17,502,951 km (0.091 R)
• M15: 20,313,596 km (0.042 R)
• M16: 22,216,032 km (0.077 R)
• M17: 25,935,484 km (0.076 R)
• M18: 27,623,845 km (0.113 R)
• M19: 28,171,972 km (0.101 R)
• M20: 29,290,066 km (0.072 R)
• M21: 31,913,714 km (0.108 R)
• M22: 32,416,213 km (0.11 R)
• M23: 33,231,222 km (0.062 R)
• M24: 35,328,734 km (0.076 R)
• M25: 36,738,544 km (0.082 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 275.8

Radius: 6.7

Gravity: 6.14 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 11.81 AU - 15.75 AU

Year: 18684 Days

Day: 17.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 53,692,142 km

• M1: 83,326 km (0.12 R)
• M2: 311,313 km (0.03 R)
• M3: 623,524 km (0.061 R)
• M4: 1,545,346 km (0.11 R)
• M5: 1,856,510 km (0.082 R)
• M6: 2,284,659 km (0.088 R)
• M7: 2,543,014 km (0.11 R)
• M8: 2,955,755 km (0.069 R)
• M9: 3,312,546 km (0.104 R)
• M10: 3,697,611 km (0.072 R)
• M11: 5,508,194 km (0.111 R)
• M12: 5,828,632 km (0.106 R)
• M13: 6,865,196 km (0.072 R)
• M14: 12,675,278 km (0.085 R)
• M15: 15,636,119 km (0.113 R)
• M16: 16,424,500 km (0.096 R)
• M17: 17,088,864 km (0.072 R)
• M18: 18,629,273 km (0.084 R)
• M19: 19,189,517 km (0.089 R)
• M20: 21,983,557 km (0.079 R)
• M21: 22,972,099 km (0.056 R)
• M22: 38,516,365 km (0.082 R)
• M23: 40,748,366 km (0.093 R)
• M24: 41,691,879 km (0.105 R)
• M25: 42,512,125 km (0.077 R)
• M26: 49,924,250 km (0.071 R)
• M27: 52,732,950 km (0.101 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 524 - 18,858 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit