🌌 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: 0.54 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.95

Radius: 1.9

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.204

Orbit Range: 0.43 AU - 0.65 AU

Year: 143 Days

Day: 39.1 Hours

Environment

Temp: 174 °C

Axial Tilt: 39.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (2)

Outer Limit: 54,526,789 km

• M1: 53,556 km (0.04 R)
• M2: 105,766 km (0.097 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.88

Radius: 0.95

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 0.74 AU - 0.74 AU

Year: 229 Days

Day: 44.2 Hours

Environment

Temp: 197 °C

Axial Tilt: 13.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.94 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.67

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.75 AU - 1.13 AU

Year: 328 Days

Day: 44.8 Hours

Environment

Temp: 77 °C

Axial Tilt: 17.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 54,526,789 km

• M1: 190,139 km (0.08 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.99 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.66

Radius: 0.85

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 2.96 AU - 3.02 AU

Year: 1861 Days

Day: 19.6 Hours

Environment

Temp: -107 °C

Axial Tilt: 11.1 °

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 5 - Gas Giant

Semi-Major Axis: 5.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 537.2

Radius: 10.6

Gravity: 4.78 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 4.45 AU - 6.01 AU

Year: 4305 Days

Day: 9.6 Hours

Environment

Temp: -135 °C

Axial Tilt: 15.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 54,526,789 km

• M1: 131,796 km (0.075 R)
• M2: 465,549 km (0.057 R)
• M3: 864,227 km (0.119 R)
• M4: 1,748,201 km (0.113 R)
• M5: 2,138,801 km (0.093 R)
• M6: 2,956,503 km (0.118 R)
• M7: 3,418,162 km (0.109 R)
• M8: 4,440,514 km (0.05 R)
• M9: 5,519,563 km (0.066 R)
• M10: 6,399,947 km (0.058 R)
• M11: 6,952,711 km (0.1 R)
• M12: 10,289,940 km (0.114 R)
• M13: 10,834,775 km (0.083 R)
• M14: 12,491,273 km (0.113 R)
• M15: 14,831,133 km (0.098 R)
• M16: 16,810,612 km (0.088 R)
• M17: 17,685,161 km (0.092 R)
• M18: 22,728,853 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 271.2

Radius: 13.4

Gravity: 1.51 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 7.48 AU - 12.16 AU

Year: 11075 Days

Day: 8.5 Hours

Environment

Temp: -174 °C

Axial Tilt: 43.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 54,526,789 km

• M1: 173,234 km (0.084 R)
• M2: 766,839 km (0.067 R)
• M3: 1,294,919 km (0.097 R)
• M4: 1,975,589 km (0.041 R)
• M5: 2,828,148 km (0.11 R)
• M6: 4,161,214 km (0.084 R)
• M7: 4,715,923 km (0.109 R)
• M8: 5,942,626 km (0.109 R)
• M9: 7,522,978 km (0.119 R)
• M10: 8,147,698 km (0.069 R)
• M11: 9,590,420 km (0.118 R)
• M12: 11,098,068 km (0.111 R)
• M13: 11,856,828 km (0.118 R)
• M14: 12,812,908 km (0.088 R)
• M15: 13,422,071 km (0.117 R)
• M16: 14,342,546 km (0.113 R)
• M17: 15,613,979 km (0.114 R)
• M18: 17,491,581 km (0.081 R)
• M19: 21,151,942 km (0.081 R)
• M20: 22,958,785 km (0.095 R)
• M21: 24,951,578 km (0.1 R)
• M22: 25,902,572 km (0.071 R)
• M23: 26,520,262 km (0.085 R)
• M24: 36,671,824 km (0.115 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 349.5

Radius: 3

Gravity: 38.83 G

Time & Orbit

Eccentricity (e): 0.07

Orbit Range: 12.15 AU - 13.97 AU

Year: 16986 Days

Day: 18.4 Hours

Environment

Temp: -192 °C

Axial Tilt: 43.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 54,526,789 km

• M1: 37,399 km (0.086 R)
• M2: 162,613 km (0.112 R)
• M3: 382,372 km (0.12 R)
• M4: 657,931 km (0.046 R)
• M5: 919,728 km (0.053 R)
• M6: 2,197,892 km (0.067 R)
• M7: 2,495,741 km (0.073 R)
• M8: 2,622,151 km (0.099 R)
• M9: 3,244,778 km (0.06 R)
• M10: 5,306,536 km (0.059 R)
• M11: 7,265,370 km (0.115 R)
• M12: 7,567,109 km (0.096 R)
• M13: 8,809,519 km (0.104 R)
• M14: 10,450,458 km (0.09 R)
• M15: 14,590,879 km (0.073 R)
• M16: 15,279,478 km (0.078 R)
• M17: 16,572,901 km (0.082 R)
• M18: 16,721,003 km (0.038 R)
• M19: 17,937,533 km (0.104 R)
• M20: 22,117,746 km (0.114 R)
• M21: 22,659,141 km (0.116 R)
• M22: 23,674,761 km (0.106 R)
• M23: 27,727,217 km (0.107 R)
• M24: 28,995,209 km (0.107 R)
• M25: 30,412,050 km (0.081 R)
• M26: 31,760,077 km (0.061 R)
• M27: 31,874,220 km (0.085 R)
• M28: 35,795,180 km (0.116 R)
• M29: 39,760,122 km (0.033 R)
• M30: 40,963,787 km (0.032 R)
• M31: 45,875,683 km (0.092 R)
• M32: 46,021,391 km (0.094 R)
• M33: 48,699,492 km (0.072 R)

Kuiper Belt

Range: 30.5 - 46.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 327 - 14,813 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit