🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.76 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.1

Radius: 1.04

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.098

Orbit Range: 0.69 AU - 0.83 AU

Year: 248 Days

Day: 26 Hours

Environment

Temp: 120 °C

Axial Tilt: 7.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.21 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.7

Radius: 1.24

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.94 AU - 1.48 AU

Year: 499 Days

Day: 23.8 Hours

Environment

Temp: -3 °C

Axial Tilt: 19.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.97

Radius: 1.9

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.47 AU - 1.59 AU

Year: 709 Days

Day: 16.3 Hours

Environment

Temp: -44 °C

Axial Tilt: 6.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 3.24 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.81

Radius: 1.87

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 2.75 AU - 3.73 AU

Year: 2185 Days

Day: 27.6 Hours

Environment

Temp: -117 °C

Axial Tilt: 46.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 56,749,388 km

• M1: 250,876 km (0.113 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.93 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.69

Radius: 1.49

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 3.67 AU - 4.19 AU

Year: 2920 Days

Day: 45.2 Hours

Environment

Temp: -129 °C

Axial Tilt: 21.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.4 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 4.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 302.9

Radius: 10.2

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 4.46 AU - 5.26 AU

Year: 4015 Days

Day: 12 Hours

Environment

Temp: -135 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 56,749,388 km

• M1: 126,859 km (0.076 R)
• M2: 995,424 km (0.08 R)
• M3: 1,334,712 km (0.118 R)
• M4: 2,011,643 km (0.117 R)
• M5: 2,393,716 km (0.059 R)
• M6: 3,430,279 km (0.106 R)
• M7: 4,203,251 km (0.086 R)
• M8: 4,675,532 km (0.112 R)
• M9: 5,600,196 km (0.117 R)
• M10: 8,358,183 km (0.051 R)
• M11: 9,679,431 km (0.109 R)
• M12: 10,582,553 km (0.099 R)
• M13: 11,054,834 km (0.063 R)
• M14: 13,630,161 km (0.049 R)
• M15: 14,379,198 km (0.106 R)
• M16: 17,057,748 km (0.09 R)
• M17: 18,599,354 km (0.082 R)
• M18: 19,579,519 km (0.116 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 927.9

Radius: 12.7

Gravity: 5.75 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 4.57 AU - 6.45 AU

Year: 4847 Days

Day: 6.9 Hours

Environment

Temp: -157 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 56,749,388 km

• M1: 157,975 km (0.077 R)
• M2: 608,115 km (0.111 R)
• M3: 1,495,231 km (0.103 R)
• M4: 2,195,648 km (0.047 R)
• M5: 2,693,360 km (0.088 R)
• M6: 3,348,599 km (0.079 R)
• M7: 6,062,903 km (0.103 R)
• M8: 7,477,500 km (0.053 R)
• M9: 10,717,491 km (0.083 R)
• M10: 13,194,831 km (0.11 R)
• M11: 14,118,000 km (0.066 R)
• M12: 14,795,229 km (0.108 R)
• M13: 17,593,757 km (0.114 R)
• M14: 19,598,518 km (0.099 R)
• M15: 22,578,956 km (0.116 R)
• M16: 23,583,955 km (0.103 R)
• M17: 26,100,490 km (0.094 R)
• M18: 28,522,928 km (0.108 R)
• M19: 29,151,239 km (0.088 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 347

Radius: 13.4

Gravity: 1.93 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 5.77 AU - 6.85 AU

Year: 5940 Days

Day: 14.7 Hours

Environment

Temp: -160 °C

Axial Tilt: 42.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 56,749,388 km

• M1: 166,652 km (0.102 R)
• M2: 632,799 km (0.106 R)
• M3: 1,259,016 km (0.057 R)
• M4: 1,845,589 km (0.11 R)
• M5: 2,375,315 km (0.098 R)
• M6: 3,134,225 km (0.11 R)
• M7: 3,663,652 km (0.114 R)
• M8: 4,184,103 km (0.057 R)
• M9: 4,980,712 km (0.109 R)
• M10: 5,649,713 km (0.106 R)
• M11: 8,791,418 km (0.114 R)
• M12: 9,489,292 km (0.084 R)
• M13: 10,864,695 km (0.092 R)
• M14: 11,306,757 km (0.083 R)
• M15: 13,751,335 km (0.079 R)
• M16: 16,587,562 km (0.052 R)
• M17: 17,174,584 km (0.112 R)
• M18: 18,703,175 km (0.115 R)
• M19: 19,533,144 km (0.026 R)
• M20: 20,789,915 km (0.049 R)
• M21: 22,382,833 km (0.111 R)
• M22: 26,045,438 km (0.111 R)

Planet 9 - Ice Giant

Semi-Major Axis: 16.54 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 178.9

Radius: 7.4

Gravity: 3.27 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 13.27 AU - 19.81 AU

Year: 25208 Days

Day: 20.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 19 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 56,749,388 km

• M1: 92,003 km (0.075 R)
• M2: 559,047 km (0.115 R)
• M3: 1,194,838 km (0.07 R)
• M4: 1,606,532 km (0.117 R)
• M5: 2,001,320 km (0.117 R)
• M6: 2,260,424 km (0.094 R)
• M7: 3,325,261 km (0.1 R)
• M8: 3,940,109 km (0.048 R)
• M9: 5,220,517 km (0.1 R)
• M10: 7,174,265 km (0.065 R)
• M11: 7,876,029 km (0.083 R)
• M12: 8,290,564 km (0.114 R)
• M13: 8,914,687 km (0.048 R)
• M14: 10,695,350 km (0.033 R)
• M15: 14,394,457 km (0.058 R)
• M16: 16,603,868 km (0.082 R)
• M17: 23,803,714 km (0.098 R)
• M18: 24,186,086 km (0.097 R)
• M19: 25,457,369 km (0.105 R)
• M20: 27,814,732 km (0.097 R)
• M21: 30,650,360 km (0.046 R)
• M22: 31,906,084 km (0.107 R)
• M23: 37,401,113 km (0.111 R)
• M24: 38,439,771 km (0.034 R)
• M25: 40,574,682 km (0.04 R)
• M26: 43,780,266 km (0.115 R)
• M27: 44,788,406 km (0.084 R)
• M28: 45,811,954 km (0.089 R)
• M29: 51,641,933 km (0.118 R)
• M30: 56,579,560 km (0.098 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 534 - 12,131 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit