🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.32

Radius: 1.8

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.45 AU - 0.57 AU

Year: 136 Days

Day: 29.7 Hours

Environment

Temp: 153 °C

Axial Tilt: 8.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 90,413,803 km

• M1: 306,227 km (0.1 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.09

Radius: 1.57

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 0.5 AU - 0.6 AU

Year: 153 Days

Day: 23.6 Hours

Environment

Temp: 206 °C

Axial Tilt: 33 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.49

Radius: 1.82

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.038

Orbit Range: 1.5 AU - 1.62 AU

Year: 730 Days

Day: 43.9 Hours

Environment

Temp: -59 °C

Axial Tilt: 28.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 90,413,803 km

• M1: 225,145 km (0.076 R)
• M2: 274,662 km (0.098 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.82 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.23

Radius: 0.56

Gravity: 0.73 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.43 AU - 2.21 AU

Year: 920 Days

Day: 35.6 Hours

Environment

Temp: -70 °C

Axial Tilt: 17.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.87

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 1.65 AU - 2.39 AU

Year: 1076 Days

Day: 34.4 Hours

Environment

Temp: -74 °C

Axial Tilt: 9.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 90,413,803 km

• M1: 76,295 km (0.117 R)
• M2: 318,195 km (0.104 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 481.6

Radius: 12.1

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 5.08 AU - 8.16 AU

Year: 6383 Days

Day: 5.1 Hours

Environment

Temp: -166 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 90,413,803 km

• M1: 150,495 km (0.069 R)
• M2: 607,218 km (0.081 R)
• M3: 1,060,350 km (0.118 R)
• M4: 1,756,279 km (0.111 R)
• M5: 2,633,222 km (0.117 R)
• M6: 3,606,505 km (0.045 R)
• M7: 4,152,388 km (0.095 R)
• M8: 6,254,388 km (0.105 R)
• M9: 6,707,969 km (0.083 R)
• M10: 7,183,391 km (0.12 R)
• M11: 9,439,925 km (0.087 R)
• M12: 10,525,856 km (0.108 R)
• M13: 12,433,977 km (0.056 R)
• M14: 12,893,242 km (0.079 R)
• M15: 13,523,348 km (0.077 R)
• M16: 15,951,023 km (0.104 R)
• M17: 18,001,411 km (0.078 R)
• M18: 19,943,491 km (0.062 R)
• M19: 21,144,911 km (0.114 R)
• M20: 22,619,348 km (0.083 R)
• M21: 23,847,546 km (0.088 R)
• M22: 25,854,701 km (0.111 R)
• M23: 27,111,772 km (0.077 R)
• M24: 27,539,622 km (0.073 R)
• M25: 30,111,359 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 877.6

Radius: 8.5

Gravity: 12.15 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 5.31 AU - 8.21 AU

Year: 6586 Days

Day: 8.4 Hours

Environment

Temp: -156 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 90,413,803 km

• M1: 105,766 km (0.067 R)
• M2: 375,341 km (0.046 R)
• M3: 905,366 km (0.074 R)
• M4: 1,583,344 km (0.055 R)
• M5: 2,228,559 km (0.111 R)
• M6: 2,914,915 km (0.09 R)
• M7: 4,561,987 km (0.07 R)
• M8: 6,861,306 km (0.064 R)
• M9: 7,853,888 km (0.084 R)
• M10: 8,983,053 km (0.098 R)
• M11: 15,332,735 km (0.11 R)
• M12: 17,979,420 km (0.101 R)
• M13: 20,380,616 km (0.111 R)
• M14: 21,226,292 km (0.119 R)
• M15: 21,935,536 km (0.064 R)
• M16: 22,255,825 km (0.086 R)
• M17: 25,543,687 km (0.066 R)
• M18: 31,011,489 km (0.042 R)
• M19: 31,924,335 km (0.117 R)
• M20: 35,097,007 km (0.068 R)
• M21: 35,755,836 km (0.059 R)
• M22: 37,325,118 km (0.095 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 808.3

Radius: 3.2

Gravity: 78.94 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 14.46 AU - 17.42 AU

Year: 23848 Days

Day: 22.4 Hours

Environment

Temp: -191 °C

Axial Tilt: 57.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 90,413,803 km

• M1: 59,390 km (0.071 R)
• M2: 257,308 km (0.111 R)
• M3: 963,261 km (0.084 R)
• M4: 1,069,176 km (0.053 R)
• M5: 2,023,760 km (0.05 R)
• M6: 2,431,414 km (0.081 R)
• M7: 2,973,557 km (0.114 R)
• M8: 3,750,867 km (0.118 R)
• M9: 4,221,203 km (0.078 R)
• M10: 4,692,137 km (0.048 R)
• M11: 8,057,491 km (0.115 R)
• M12: 8,496,710 km (0.106 R)
• M13: 10,542,611 km (0.1 R)
• M14: 15,158,004 km (0.089 R)
• M15: 16,167,341 km (0.114 R)
• M16: 21,787,583 km (0.081 R)
• M17: 23,179,891 km (0.114 R)
• M18: 24,403,302 km (0.12 R)
• M19: 25,435,976 km (0.067 R)
• M20: 27,834,030 km (0.1 R)
• M21: 29,215,118 km (0.032 R)
• M22: 29,599,584 km (0.076 R)
• M23: 40,977,849 km (0.119 R)
• M24: 41,298,587 km (0.081 R)
• M25: 41,944,849 km (0.062 R)
• M26: 43,092,115 km (0.066 R)
• M27: 57,924,744 km (0.1 R)
• M28: 67,694,981 km (0.067 R)
• M29: 71,103,569 km (0.066 R)
• M30: 72,967,558 km (0.102 R)
• M31: 78,260,630 km (0.102 R)
• M32: 79,498,253 km (0.109 R)
• M33: 84,320,391 km (0.104 R)
• M34: 85,620,995 km (0.091 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: 366 - 11,372 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit