🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.7 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.52

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.129

Orbit Range: 0.61 AU - 0.79 AU

Year: 259 Days

Day: 39.3 Hours

Environment

Temp: 0 °C

Axial Tilt: 7.4 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.67

Radius: 0.85

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.62 AU - 0.98 AU

Year: 317 Days

Day: 28.6 Hours

Environment

Temp: -42 °C

Axial Tilt: 33.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.23

Radius: 1.6

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.78 AU - 1.18 AU

Year: 430 Days

Day: 14.7 Hours

Environment

Temp: -69 °C

Axial Tilt: 38.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.39

Radius: 0.69

Gravity: 0.82 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 1.28 AU - 1.66 AU

Year: 789 Days

Day: 45.2 Hours

Environment

Temp: -89 °C

Axial Tilt: 23.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 2.75 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 69.7

Radius: 9.4

Gravity: 0.79 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 3.04 AU - 5.02 AU

Year: 3583 Days

Day: 8.1 Hours

Environment

Temp: -157 °C

Axial Tilt: 45.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 82,140,650 km

• M1: 118,332 km (0.047 R)
• M2: 1,447,509 km (0.049 R)
• M3: 1,799,214 km (0.086 R)
• M4: 2,458,491 km (0.114 R)
• M5: 3,707,933 km (0.098 R)
• M6: 4,149,546 km (0.057 R)
• M7: 6,390,522 km (0.057 R)
• M8: 10,504,314 km (0.088 R)

Planet 6 - Gas Giant

Semi-Major Axis: 9.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 841.7

Radius: 9.3

Gravity: 9.73 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 8.06 AU - 10.6 AU

Year: 12623 Days

Day: 14.1 Hours

Environment

Temp: -198 °C

Axial Tilt: 47.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 82,140,650 km

• M1: 116,238 km (0.089 R)
• M2: 654,191 km (0.098 R)
• M3: 1,039,556 km (0.058 R)
• M4: 1,560,306 km (0.065 R)
• M5: 2,227,512 km (0.062 R)
• M6: 2,954,708 km (0.079 R)
• M7: 4,150,593 km (0.091 R)
• M8: 5,979,128 km (0.112 R)
• M9: 6,652,019 km (0.118 R)
• M10: 7,243,379 km (0.06 R)
• M11: 8,148,446 km (0.076 R)
• M12: 8,975,423 km (0.084 R)
• M13: 10,967,618 km (0.116 R)
• M14: 11,975,010 km (0.067 R)
• M15: 16,175,270 km (0.094 R)
• M16: 17,715,978 km (0.083 R)
• M17: 19,691,269 km (0.12 R)
• M18: 23,493,747 km (0.059 R)
• M19: 24,466,283 km (0.103 R)
• M20: 26,284,346 km (0.091 R)
• M21: 27,974,353 km (0.075 R)
• M22: 28,736,105 km (0.103 R)
• M23: 29,848,216 km (0.041 R)
• M24: 31,452,952 km (0.03 R)
• M25: 34,958,629 km (0.086 R)
• M26: 41,319,530 km (0.068 R)
• M27: 42,307,325 km (0.058 R)
• M28: 44,329,888 km (0.099 R)
• M29: 47,176,736 km (0.051 R)
• M30: 47,637,048 km (0.063 R)
• M31: 50,302,583 km (0.091 R)
• M32: 51,916,295 km (0.025 R)
• M33: 56,790,493 km (0.081 R)
• M34: 58,011,212 km (0.115 R)
• M35: 58,539,592 km (0.089 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 765.7

Radius: 3.2

Gravity: 74.78 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 10.72 AU - 15.66 AU

Year: 21218 Days

Day: 24.5 Hours

Environment

Temp: -209 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 82,140,650 km

• M1: 39,943 km (0.079 R)
• M2: 140,323 km (0.075 R)
• M3: 811,120 km (0.092 R)
• M4: 1,025,793 km (0.107 R)
• M5: 2,104,992 km (0.069 R)
• M6: 2,212,553 km (0.051 R)
• M7: 4,404,012 km (0.109 R)
• M8: 6,079,209 km (0.091 R)
• M9: 6,209,808 km (0.052 R)
• M10: 7,081,215 km (0.06 R)
• M11: 7,323,564 km (0.074 R)
• M12: 9,119,486 km (0.101 R)
• M13: 16,141,610 km (0.086 R)
• M14: 17,596,898 km (0.082 R)
• M15: 17,951,445 km (0.117 R)
• M16: 50,459,960 km (0.065 R)
• M17: 50,638,131 km (0.073 R)
• M18: 57,335,030 km (0.107 R)
• M19: 57,529,058 km (0.111 R)
• M20: 64,179,431 km (0.092 R)
• M21: 75,901,771 km (0.079 R)
• M22: 78,501,183 km (0.08 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: 155 - 16,357 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit