🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.68 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.04

Radius: 1.02

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.67 AU - 0.69 AU

Year: 211 Days

Day: 21.6 Hours

Environment

Temp: 177 °C

Axial Tilt: 38.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 67,550,866 km

• M1: 29,620 km (0.108 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.67

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.72 AU - 0.82 AU

Year: 255 Days

Day: 39.6 Hours

Environment

Temp: 108 °C

Axial Tilt: 45.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 67,550,866 km

• M1: 541,095 km (0.11 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.02

Radius: 1.32

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.81 AU - 0.93 AU

Year: 306 Days

Day: 37.5 Hours

Environment

Temp: 50 °C

Axial Tilt: 21.3 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 4 - Terrestrial

Semi-Major Axis: 1.05 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.5

Radius: 1.44

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.96 AU - 1.14 AU

Year: 405 Days

Day: 38.9 Hours

Environment

Temp: 7 °C

Axial Tilt: 110.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.16 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.82

Radius: 1.51

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 1.15 AU - 1.17 AU

Year: 471 Days

Day: 24.4 Hours

Environment

Temp: -0 °C

Axial Tilt: 47 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 6 - Terrestrial

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.73

Radius: 1.69

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 2.39 AU - 2.97 AU

Year: 1653 Days

Day: 33.8 Hours

Environment

Temp: -106 °C

Axial Tilt: 7.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 67,550,866 km

• M1: 39,793 km (0.109 R)
• M2: 359,484 km (0.105 R)

Asteroid Belt

Center: 5.21 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 7.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 167.4

Radius: 10.1

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 5.84 AU - 9.64 AU

Year: 8112 Days

Day: 10.2 Hours

Environment

Temp: -170 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 67,550,866 km

• M1: 129,701 km (0.085 R)
• M2: 462,257 km (0.037 R)
• M3: 1,428,959 km (0.117 R)
• M4: 1,798,316 km (0.072 R)
• M5: 2,489,458 km (0.099 R)
• M6: 3,012,452 km (0.09 R)
• M7: 3,446,585 km (0.041 R)
• M8: 3,815,344 km (0.109 R)
• M9: 5,292,324 km (0.106 R)
• M10: 7,997,652 km (0.1 R)
• M11: 9,253,975 km (0.106 R)
• M12: 10,510,148 km (0.117 R)
• M13: 11,069,345 km (0.108 R)
• M14: 14,220,175 km (0.096 R)
• M15: 16,625,410 km (0.115 R)
• M16: 19,932,719 km (0.055 R)
• M17: 23,148,176 km (0.115 R)
• M18: 25,910,950 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 271.6

Radius: 5.4

Gravity: 9.31 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 13.74 AU - 20.4 AU

Year: 26569 Days

Day: 24.7 Hours

Environment

Temp: -206 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 67,550,866 km

• M1: 67,319 km (0.102 R)
• M2: 252,372 km (0.044 R)
• M3: 428,897 km (0.032 R)
• M4: 1,280,857 km (0.064 R)
• M5: 1,679,236 km (0.111 R)
• M6: 1,907,522 km (0.113 R)
• M7: 2,196,546 km (0.06 R)
• M8: 4,616,889 km (0.077 R)
• M9: 5,247,594 km (0.069 R)
• M10: 5,973,892 km (0.036 R)
• M11: 6,465,919 km (0.088 R)
• M12: 7,576,983 km (0.092 R)
• M13: 8,252,118 km (0.1 R)
• M14: 9,071,764 km (0.119 R)
• M15: 9,446,806 km (0.058 R)
• M16: 10,113,863 km (0.107 R)
• M17: 11,791,903 km (0.093 R)
• M18: 13,646,916 km (0.119 R)
• M19: 14,937,048 km (0.119 R)
• M20: 16,228,377 km (0.111 R)
• M21: 22,623,985 km (0.067 R)
• M22: 32,338,721 km (0.083 R)
• M23: 32,711,519 km (0.09 R)
• M24: 34,103,079 km (0.076 R)
• M25: 34,489,340 km (0.107 R)
• M26: 38,514,121 km (0.087 R)
• M27: 38,793,121 km (0.064 R)
• M28: 47,480,868 km (0.111 R)
• M29: 50,419,569 km (0.093 R)
• M30: 52,959,292 km (0.103 R)
• M31: 57,379,610 km (0.084 R)
• M32: 61,087,991 km (0.112 R)
• M33: 66,143,651 km (0.099 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 296 - 16,540 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit