🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.71

Radius: 1.49

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.45 AU - 0.65 AU

Year: 150 Days

Day: 15.6 Hours

Environment

Temp: 187 °C

Axial Tilt: 4.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 62,289,009 km

• M1: 93,947 km (0.064 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.77 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.28

Radius: 1.39

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 0.76 AU - 0.78 AU

Year: 248 Days

Day: 27.2 Hours

Environment

Temp: 127 °C

Axial Tilt: 39.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.79

Radius: 1.51

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 2.22 AU - 2.78 AU

Year: 1451 Days

Day: 12.5 Hours

Environment

Temp: -81 °C

Axial Tilt: 46.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 62,289,009 km

• M1: 1,944,024 km (0.115 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.59 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.66

Radius: 0.85

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 2.11 AU - 3.07 AU

Year: 1530 Days

Day: 31.1 Hours

Environment

Temp: -85 °C

Axial Tilt: 25.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 62,289,009 km

• M1: 28,424 km (0.106 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.32 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.46

Radius: 1.82

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 2.93 AU - 3.71 AU

Year: 2221 Days

Day: 41.4 Hours

Environment

Temp: -122 °C

Axial Tilt: 5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.11 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 4.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 131.4

Radius: 9.2

Gravity: 1.55 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 3.84 AU - 5.94 AU

Year: 3970 Days

Day: 5.9 Hours

Environment

Temp: -132 °C

Axial Tilt: 128.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 62,289,009 km

• M1: 114,592 km (0.119 R)
• M2: 453,880 km (0.111 R)
• M3: 1,251,835 km (0.092 R)
• M4: 2,150,021 km (0.081 R)
• M5: 2,566,052 km (0.031 R)
• M6: 4,835,153 km (0.118 R)
• M7: 5,691,002 km (0.03 R)
• M8: 6,265,757 km (0.115 R)
• M9: 7,281,826 km (0.101 R)
• M10: 7,587,305 km (0.07 R)
• M11: 9,117,691 km (0.075 R)
• M12: 10,384,635 km (0.097 R)
• M13: 14,059,806 km (0.108 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 891.9

Radius: 12.8

Gravity: 5.44 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 4.14 AU - 6.58 AU

Year: 4555 Days

Day: 6.2 Hours

Environment

Temp: -136 °C

Axial Tilt: 2.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 62,289,009 km

• M1: 160,818 km (0.035 R)
• M2: 821,592 km (0.098 R)
• M3: 1,733,391 km (0.117 R)
• M4: 2,362,599 km (0.094 R)
• M5: 3,463,191 km (0.1 R)
• M6: 4,394,587 km (0.041 R)
• M7: 5,959,082 km (0.053 R)
• M8: 6,458,589 km (0.101 R)
• M9: 7,904,452 km (0.085 R)
• M10: 9,348,521 km (0.112 R)
• M11: 10,961,485 km (0.106 R)
• M12: 12,201,352 km (0.107 R)
• M13: 12,855,244 km (0.075 R)
• M14: 13,799,207 km (0.119 R)
• M15: 14,845,195 km (0.096 R)
• M16: 15,707,776 km (0.105 R)
• M17: 18,693,600 km (0.11 R)
• M18: 19,904,894 km (0.088 R)
• M19: 21,528,031 km (0.071 R)
• M20: 22,633,111 km (0.056 R)
• M21: 24,558,435 km (0.088 R)
• M22: 26,674,348 km (0.074 R)
• M23: 29,621,126 km (0.055 R)

Planet 8 - Ice Giant

Semi-Major Axis: 12.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 595.1

Radius: 5

Gravity: 23.8 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 9.83 AU - 14.83 AU

Year: 15893 Days

Day: 23.6 Hours

Environment

Temp: -179 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 62,289,009 km

• M1: 62,233 km (0.086 R)
• M2: 276,457 km (0.073 R)
• M3: 449,841 km (0.115 R)
• M4: 911,649 km (0.098 R)
• M5: 1,342,192 km (0.067 R)
• M6: 1,643,482 km (0.065 R)
• M7: 2,007,155 km (0.048 R)
• M8: 6,731,156 km (0.104 R)
• M9: 7,383,104 km (0.114 R)
• M10: 7,747,524 km (0.046 R)
• M11: 8,414,132 km (0.09 R)
• M12: 9,015,216 km (0.117 R)
• M13: 10,528,549 km (0.102 R)
• M14: 12,203,446 km (0.089 R)
• M15: 12,842,229 km (0.062 R)
• M16: 13,503,153 km (0.116 R)
• M17: 16,298,239 km (0.118 R)
• M18: 16,682,407 km (0.094 R)
• M19: 17,230,234 km (0.073 R)
• M20: 20,951,930 km (0.084 R)
• M21: 21,223,600 km (0.115 R)
• M22: 28,915,772 km (0.093 R)
• M23: 29,252,667 km (0.087 R)
• M24: 30,394,248 km (0.098 R)
• M25: 31,922,390 km (0.111 R)
• M26: 36,812,745 km (0.075 R)
• M27: 39,229,199 km (0.051 R)
• M28: 40,196,798 km (0.1 R)
• M29: 40,897,664 km (0.065 R)
• M30: 46,645,962 km (0.108 R)
• M31: 50,438,418 km (0.1 R)
• M32: 52,243,167 km (0.069 R)
• M33: 55,461,316 km (0.107 R)
• M34: 60,623,939 km (0.082 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: 347 - 11,737 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit