🌌 Stone's Star System Generator

Asteroid Belt

Center: 1.53 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 3.06 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.87

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 2.33 AU - 3.79 AU

Year: 1955 Days

Day: 41.8 Hours

Environment

Temp: -94 °C

Axial Tilt: 35 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 4.62 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.35

Radius: 0.66

Gravity: 0.8 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 4.54 AU - 4.7 AU

Year: 3627 Days

Day: 27 Hours

Environment

Temp: -127 °C

Axial Tilt: 41.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.93 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 5.24 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 719.4

Radius: 11.7

Gravity: 5.26 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 4.64 AU - 5.84 AU

Year: 4381 Days

Day: 11.3 Hours

Environment

Temp: -140 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 52,131,071 km

• M1: 145,559 km (0.062 R)
• M2: 752,776 km (0.119 R)
• M3: 1,550,283 km (0.112 R)
• M4: 2,158,398 km (0.03 R)
• M5: 2,920,599 km (0.101 R)
• M6: 3,557,288 km (0.057 R)
• M7: 5,161,575 km (0.088 R)
• M8: 6,035,077 km (0.09 R)
• M9: 7,578,479 km (0.069 R)
• M10: 10,194,945 km (0.047 R)
• M11: 11,475,353 km (0.106 R)
• M12: 15,845,257 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 844.7

Radius: 11.4

Gravity: 6.5 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 4.71 AU - 6.17 AU

Year: 4634 Days

Day: 5.7 Hours

Environment

Temp: -153 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 52,131,071 km

• M1: 146,606 km (0.119 R)
• M2: 614,847 km (0.062 R)
• M3: 1,421,928 km (0.095 R)
• M4: 2,015,831 km (0.116 R)
• M5: 2,896,813 km (0.087 R)
• M6: 3,262,430 km (0.111 R)
• M7: 4,064,425 km (0.099 R)
• M8: 5,727,055 km (0.082 R)
• M9: 6,275,930 km (0.045 R)
• M10: 7,199,697 km (0.113 R)
• M11: 9,439,925 km (0.094 R)
• M12: 13,119,883 km (0.11 R)
• M13: 13,698,527 km (0.088 R)
• M14: 16,425,248 km (0.099 R)
• M15: 22,702,524 km (0.084 R)
• M16: 23,383,942 km (0.051 R)
• M17: 25,348,162 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 9.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 760.8

Radius: 12.6

Gravity: 4.79 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 7.27 AU - 10.77 AU

Year: 9895 Days

Day: 11.7 Hours

Environment

Temp: -174 °C

Axial Tilt: 35.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 52,131,071 km

• M1: 157,227 km (0.108 R)
• M2: 618,288 km (0.067 R)
• M3: 1,060,799 km (0.078 R)
• M4: 1,483,263 km (0.091 R)
• M5: 2,020,469 km (0.096 R)
• M6: 2,545,857 km (0.108 R)
• M7: 3,048,954 km (0.054 R)
• M8: 4,342,078 km (0.063 R)
• M9: 6,079,957 km (0.103 R)
• M10: 8,878,035 km (0.093 R)
• M11: 10,822,658 km (0.101 R)
• M12: 11,753,606 km (0.059 R)
• M13: 14,736,587 km (0.048 R)
• M14: 17,520,155 km (0.083 R)
• M15: 18,419,387 km (0.057 R)
• M16: 20,066,759 km (0.114 R)
• M17: 23,027,600 km (0.105 R)
• M18: 28,658,763 km (0.083 R)
• M19: 31,517,429 km (0.112 R)
• M20: 33,754,067 km (0.116 R)
• M21: 44,722,732 km (0.069 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 986.1

Radius: 11.2

Gravity: 7.86 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 8.78 AU - 10.06 AU

Year: 10560 Days

Day: 14.5 Hours

Environment

Temp: -164 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 52,131,071 km

• M1: 139,425 km (0.113 R)
• M2: 913,295 km (0.057 R)
• M3: 1,316,312 km (0.11 R)
• M4: 1,759,121 km (0.069 R)
• M5: 2,225,268 km (0.085 R)
• M6: 3,563,571 km (0.107 R)
• M7: 5,139,584 km (0.11 R)
• M8: 5,588,677 km (0.088 R)
• M9: 7,264,173 km (0.09 R)
• M10: 8,427,147 km (0.116 R)
• M11: 9,658,637 km (0.084 R)
• M12: 19,096,467 km (0.087 R)
• M13: 28,911,434 km (0.116 R)
• M14: 36,248,462 km (0.098 R)
• M15: 46,491,727 km (0.067 R)
• M16: 47,536,070 km (0.11 R)
• M17: 48,595,971 km (0.04 R)
• M18: 52,349,980 km (0.064 R)
• M19: 53,480,192 km (0.119 R)
• M20: 53,969,676 km (0.099 R)
• M21: 54,957,321 km (0.095 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 730.5

Radius: 8.9

Gravity: 9.22 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 9.58 AU - 9.76 AU

Year: 10983 Days

Day: 7 Hours

Environment

Temp: -166 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 52,131,071 km

• M1: 110,702 km (0.063 R)
• M2: 545,883 km (0.11 R)
• M3: 923,468 km (0.11 R)
• M4: 1,252,583 km (0.073 R)
• M5: 2,137,305 km (0.107 R)
• M6: 2,437,996 km (0.112 R)
• M7: 3,010,508 km (0.083 R)
• M8: 3,695,965 km (0.048 R)
• M9: 5,477,227 km (0.114 R)
• M10: 5,972,246 km (0.111 R)
• M11: 6,535,482 km (0.05 R)
• M12: 7,425,141 km (0.085 R)
• M13: 9,948,707 km (0.103 R)
• M14: 10,686,225 km (0.116 R)
• M15: 13,367,617 km (0.118 R)
• M16: 13,747,446 km (0.068 R)
• M17: 17,051,614 km (0.077 R)
• M18: 22,144,674 km (0.097 R)
• M19: 24,325,362 km (0.07 R)
• M20: 26,150,306 km (0.113 R)
• M21: 29,533,911 km (0.084 R)
• M22: 35,079,953 km (0.085 R)
• M23: 35,440,334 km (0.105 R)
• M24: 36,536,737 km (0.119 R)
• M25: 38,669,105 km (0.103 R)
• M26: 45,848,007 km (0.104 R)
• M27: 47,735,334 km (0.089 R)
• M28: 48,623,646 km (0.11 R)
• M29: 48,922,094 km (0.068 R)
• M30: 51,975,237 km (0.098 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 272 - 14,397 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit