🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.79

Radius: 1.26

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.057

Orbit Range: 0.53 AU - 0.59 AU

Year: 159 Days

Day: 28.3 Hours

Environment

Temp: 226 °C

Axial Tilt: 37.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.65 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.2

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.6 AU - 0.7 AU

Year: 198 Days

Day: 32.9 Hours

Environment

Temp: 105 °C

Axial Tilt: 29.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 81,221,331 km

• M1: 412,292 km (0.091 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.98

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 0.69 AU - 0.79 AU

Year: 241 Days

Day: 37.8 Hours

Environment

Temp: 134 °C

Axial Tilt: 3.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 81,221,331 km

• M1: 301,589 km (0.116 R)

Planet 4 - Terrestrial

Semi-Major Axis: 0.9 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.64

Radius: 1.22

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.89 AU - 0.91 AU

Year: 323 Days

Day: 36.6 Hours

Environment

Temp: 38 °C

Axial Tilt: 38.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 2.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.69

Radius: 1.23

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 1.91 AU - 2.21 AU

Year: 1120 Days

Day: 37.5 Hours

Environment

Temp: -86 °C

Axial Tilt: 35.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.25

Radius: 0.57

Gravity: 0.77 G

Time & Orbit

Eccentricity (e): 0.206

Orbit Range: 2.97 AU - 4.51 AU

Year: 2739 Days

Day: 47.9 Hours

Environment

Temp: -129 °C

Axial Tilt: 10.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 81,221,331 km

• M1: 1,221,317 km (0.104 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 588.1

Radius: 12.6

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 5.65 AU - 5.79 AU

Year: 5181 Days

Day: 11.6 Hours

Environment

Temp: -157 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 81,221,331 km

• M1: 156,779 km (0.11 R)
• M2: 647,160 km (0.108 R)
• M3: 1,275,471 km (0.079 R)
• M4: 1,811,929 km (0.085 R)
• M5: 2,513,394 km (0.087 R)
• M6: 2,910,277 km (0.117 R)
• M7: 4,103,170 km (0.092 R)
• M8: 4,914,888 km (0.065 R)
• M9: 7,712,518 km (0.09 R)
• M10: 8,831,062 km (0.095 R)
• M11: 9,927,763 km (0.102 R)
• M12: 10,797,077 km (0.117 R)
• M13: 12,787,327 km (0.113 R)
• M14: 14,734,044 km (0.061 R)
• M15: 17,359,187 km (0.118 R)
• M16: 18,235,831 km (0.113 R)
• M17: 18,879,999 km (0.111 R)
• M18: 19,605,998 km (0.117 R)
• M19: 20,834,047 km (0.107 R)
• M20: 21,466,846 km (0.066 R)
• M21: 22,623,836 km (0.104 R)
• M22: 24,825,916 km (0.064 R)
• M23: 25,777,658 km (0.055 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 829.3

Radius: 11.4

Gravity: 6.38 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 8.8 AU - 10.56 AU

Year: 11407 Days

Day: 12.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 81,221,331 km

• M1: 144,661 km (0.034 R)
• M2: 541,694 km (0.104 R)
• M3: 1,298,659 km (0.117 R)
• M4: 1,815,071 km (0.079 R)
• M5: 2,252,046 km (0.119 R)
• M6: 2,715,650 km (0.058 R)
• M7: 3,316,435 km (0.12 R)
• M8: 4,752,425 km (0.111 R)
• M9: 5,143,773 km (0.069 R)
• M10: 6,255,585 km (0.025 R)
• M11: 7,348,846 km (0.092 R)
• M12: 9,397,289 km (0.057 R)
• M13: 13,081,735 km (0.066 R)
• M14: 15,489,812 km (0.082 R)
• M15: 16,723,845 km (0.041 R)
• M16: 18,496,281 km (0.089 R)
• M17: 21,782,796 km (0.097 R)
• M18: 24,755,306 km (0.12 R)
• M19: 25,439,866 km (0.115 R)
• M20: 30,256,768 km (0.12 R)
• M21: 30,702,270 km (0.1 R)
• M22: 31,720,882 km (0.076 R)
• M23: 36,021,671 km (0.047 R)
• M24: 50,600,433 km (0.062 R)
• M25: 52,021,014 km (0.04 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 454.2

Radius: 5.2

Gravity: 16.8 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 16.23 AU - 18.23 AU

Year: 27088 Days

Day: 22.7 Hours

Environment

Temp: -204 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 81,221,331 km

• M1: 64,776 km (0.032 R)
• M2: 287,378 km (0.09 R)
• M3: 449,542 km (0.097 R)
• M4: 657,183 km (0.097 R)
• M5: 1,131,409 km (0.117 R)
• M6: 1,644,380 km (0.079 R)
• M7: 2,085,245 km (0.059 R)
• M8: 2,601,357 km (0.119 R)
• M9: 3,514,503 km (0.095 R)
• M10: 4,109,154 km (0.086 R)
• M11: 6,383,042 km (0.093 R)
• M12: 7,025,116 km (0.118 R)
• M13: 7,559,180 km (0.09 R)
• M14: 8,983,951 km (0.047 R)
• M15: 9,967,706 km (0.089 R)
• M16: 11,741,338 km (0.043 R)
• M17: 11,942,996 km (0.064 R)
• M18: 12,215,564 km (0.055 R)
• M19: 15,817,581 km (0.06 R)
• M20: 17,073,904 km (0.118 R)
• M21: 28,623,309 km (0.107 R)
• M22: 28,866,704 km (0.102 R)
• M23: 29,357,685 km (0.102 R)
• M24: 31,636,060 km (0.093 R)
• M25: 37,259,893 km (0.113 R)
• M26: 41,151,233 km (0.04 R)
• M27: 45,469,824 km (0.071 R)
• M28: 52,045,847 km (0.106 R)
• M29: 52,408,472 km (0.087 R)
• M30: 65,343,602 km (0.027 R)
• M31: 67,042,735 km (0.103 R)
• M32: 70,307,708 km (0.12 R)
• M33: 72,091,513 km (0.072 R)
• M34: 74,363,456 km (0.116 R)
• M35: 78,810,851 km (0.073 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 291 - 15,393 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit