🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.39

Radius: 1.42

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 0.44 AU - 0.62 AU

Year: 136 Days

Day: 42.5 Hours

Environment

Temp: 192 °C

Axial Tilt: 35.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.71

Radius: 1.69

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 0.57 AU - 0.67 AU

Year: 172 Days

Day: 36.6 Hours

Environment

Temp: 208 °C

Axial Tilt: 16.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 2.81 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.06

Radius: 1.75

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 2.39 AU - 3.23 AU

Year: 1656 Days

Day: 22.4 Hours

Environment

Temp: -92 °C

Axial Tilt: 25 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 85,009,389 km

• M1: 625,170 km (0.038 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.59

Radius: 1.46

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 2.96 AU - 4.04 AU

Year: 2301 Days

Day: 12 Hours

Environment

Temp: -105 °C

Axial Tilt: 26.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 85,009,389 km

• M1: 893,548 km (0.06 R)

Planet 5 - Terrestrial

Semi-Major Axis: 5.01 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.68

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 4.74 AU - 5.28 AU

Year: 3941 Days

Day: 15 Hours

Environment

Temp: -138 °C

Axial Tilt: 2.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 85,009,389 km

• M1: 863,329 km (0.071 R)
• M2: 2,049,790 km (0.063 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.31 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 654.1

Radius: 14.9

Gravity: 2.95 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 5.46 AU - 7.16 AU

Year: 5571 Days

Day: 7.5 Hours

Environment

Temp: -143 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 85,009,389 km

• M1: 186,100 km (0.042 R)
• M2: 1,043,146 km (0.116 R)
• M3: 1,559,259 km (0.068 R)
• M4: 2,836,824 km (0.107 R)
• M5: 3,441,948 km (0.088 R)
• M6: 4,325,922 km (0.089 R)
• M7: 5,529,137 km (0.068 R)
• M8: 6,100,152 km (0.048 R)
• M9: 8,436,273 km (0.076 R)
• M10: 8,950,889 km (0.115 R)
• M11: 10,532,139 km (0.091 R)
• M12: 11,750,015 km (0.071 R)
• M13: 12,292,756 km (0.058 R)
• M14: 12,955,924 km (0.071 R)
• M15: 14,577,415 km (0.117 R)
• M16: 15,554,439 km (0.108 R)
• M17: 16,574,696 km (0.11 R)
• M18: 17,831,767 km (0.033 R)
• M19: 18,949,413 km (0.101 R)
• M20: 19,973,859 km (0.084 R)
• M21: 25,823,584 km (0.102 R)
• M22: 26,322,493 km (0.114 R)
• M23: 29,814,856 km (0.079 R)
• M24: 30,641,234 km (0.093 R)
• M25: 31,294,528 km (0.112 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 937.3

Radius: 5.1

Gravity: 36.04 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 13.46 AU - 13.64 AU

Year: 17530 Days

Day: 20.6 Hours

Environment

Temp: -176 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 85,009,389 km

• M1: 63,429 km (0.044 R)
• M2: 257,907 km (0.071 R)
• M3: 537,206 km (0.111 R)
• M4: 1,092,513 km (0.116 R)
• M5: 1,256,921 km (0.097 R)
• M6: 1,437,785 km (0.054 R)
• M7: 1,706,463 km (0.042 R)
• M8: 3,237,747 km (0.036 R)
• M9: 4,755,567 km (0.113 R)
• M10: 6,514,688 km (0.103 R)
• M11: 12,034,102 km (0.109 R)
• M12: 15,302,815 km (0.099 R)
• M13: 16,844,571 km (0.058 R)
• M14: 19,763,375 km (0.091 R)
• M15: 20,138,566 km (0.053 R)
• M16: 20,806,670 km (0.11 R)
• M17: 21,097,489 km (0.066 R)
• M18: 21,489,435 km (0.109 R)
• M19: 30,757,921 km (0.083 R)
• M20: 31,388,625 km (0.078 R)
• M21: 40,842,014 km (0.074 R)
• M22: 44,906,588 km (0.065 R)
• M23: 57,552,096 km (0.04 R)
• M24: 59,282,495 km (0.026 R)
• M25: 68,884,733 km (0.06 R)
• M26: 70,180,550 km (0.074 R)
• M27: 77,135,056 km (0.115 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 832.3

Radius: 4.8

Gravity: 36.12 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 12.78 AU - 18.2 AU

Year: 21427 Days

Day: 21 Hours

Environment

Temp: -190 °C

Axial Tilt: 48.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 85,009,389 km

• M1: 59,989 km (0.117 R)
• M2: 225,594 km (0.111 R)
• M3: 670,348 km (0.067 R)
• M4: 1,027,289 km (0.055 R)
• M5: 1,865,186 km (0.113 R)
• M6: 2,422,887 km (0.037 R)
• M7: 2,817,377 km (0.116 R)
• M8: 3,310,900 km (0.065 R)
• M9: 3,639,866 km (0.105 R)
• M10: 3,892,387 km (0.051 R)
• M11: 4,089,557 km (0.045 R)
• M12: 5,702,970 km (0.085 R)
• M13: 7,345,555 km (0.06 R)
• M14: 9,163,917 km (0.06 R)
• M15: 9,691,249 km (0.1 R)
• M16: 11,528,461 km (0.088 R)
• M17: 20,502,089 km (0.109 R)
• M18: 21,504,096 km (0.098 R)
• M19: 21,708,297 km (0.101 R)
• M20: 24,705,041 km (0.098 R)
• M21: 25,723,952 km (0.1 R)
• M22: 30,080,392 km (0.116 R)
• M23: 39,755,784 km (0.085 R)
• M24: 41,784,331 km (0.088 R)
• M25: 43,066,534 km (0.116 R)
• M26: 47,934,000 km (0.119 R)
• M27: 51,679,033 km (0.061 R)
• M28: 52,229,404 km (0.04 R)
• M29: 52,413,708 km (0.036 R)
• M30: 59,142,770 km (0.102 R)
• M31: 60,961,581 km (0.049 R)
• M32: 61,165,932 km (0.103 R)
• M33: 66,858,280 km (0.073 R)
• M34: 82,236,792 km (0.064 R)
• M35: 84,500,656 km (0.088 R)

Kuiper Belt

Range: 31.2 - 57.2 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 510 - 14,334 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit