🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.31

Radius: 0.63

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.77 AU - 0.97 AU

Year: 284 Days

Day: 26 Hours

Environment

Temp: 170 °C

Axial Tilt: 10.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 34,015,509 km

• M1: 84,373 km (0.11 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.6 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.42

Radius: 1.81

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 1.3 AU - 1.9 AU

Year: 708 Days

Day: 33.7 Hours

Environment

Temp: -2 °C

Axial Tilt: 16.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.63 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.67

Radius: 0.85

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.58 AU - 1.68 AU

Year: 728 Days

Day: 40.9 Hours

Environment

Temp: -37 °C

Axial Tilt: 35.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 34,015,509 km

• M1: 49,966 km (0.116 R)
• M2: 527,781 km (0.103 R)

Planet 4 - Terrestrial

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.81

Radius: 1.87

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.78 AU - 2.38 AU

Year: 1049 Days

Day: 47.7 Hours

Environment

Temp: -48 °C

Axial Tilt: 24.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.49 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 6.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 952

Radius: 14.7

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 5.29 AU - 8.51 AU

Year: 6341 Days

Day: 10.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 10.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 34,015,509 km

• M1: 182,958 km (0.077 R)
• M2: 746,643 km (0.083 R)
• M3: 1,364,931 km (0.065 R)
• M4: 1,824,795 km (0.119 R)
• M5: 2,407,927 km (0.114 R)
• M6: 4,501,699 km (0.088 R)
• M7: 5,804,547 km (0.109 R)
• M8: 6,302,259 km (0.119 R)
• M9: 7,889,941 km (0.098 R)
• M10: 12,108,302 km (0.103 R)
• M11: 14,188,610 km (0.112 R)
• M12: 15,220,387 km (0.078 R)
• M13: 17,365,620 km (0.095 R)
• M14: 18,975,443 km (0.06 R)
• M15: 22,168,908 km (0.103 R)
• M16: 23,977,397 km (0.083 R)
• M17: 36,382,501 km (0.045 R)
• M18: 37,738,456 km (0.12 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.9

Radius: 14.4

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 5.98 AU - 9.56 AU

Year: 7577 Days

Day: 10.8 Hours

Environment

Temp: -146 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 34,015,509 km

• M1: 179,368 km (0.091 R)
• M2: 876,644 km (0.112 R)
• M3: 1,586,785 km (0.11 R)
• M4: 4,303,332 km (0.106 R)
• M5: 4,840,688 km (0.039 R)
• M6: 5,589,575 km (0.095 R)
• M7: 6,200,981 km (0.084 R)
• M8: 8,719,910 km (0.067 R)
• M9: 16,549,863 km (0.088 R)
• M10: 17,204,653 km (0.067 R)
• M11: 19,865,101 km (0.114 R)
• M12: 21,432,887 km (0.075 R)
• M13: 22,643,732 km (0.062 R)
• M14: 23,302,860 km (0.115 R)
• M15: 26,712,046 km (0.105 R)
• M16: 27,201,381 km (0.068 R)
• M17: 28,198,002 km (0.07 R)

Planet 7 - Ice Giant

Semi-Major Axis: 19.18 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 469.1

Radius: 3.2

Gravity: 45.81 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 16.25 AU - 22.11 AU

Year: 29387 Days

Day: 16.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 34,015,509 km

• M1: 62,532 km (0.094 R)
• M2: 168,148 km (0.108 R)
• M3: 562,189 km (0.083 R)
• M4: 1,149,959 km (0.05 R)
• M5: 3,850,948 km (0.083 R)
• M6: 6,143,237 km (0.104 R)
• M7: 8,695,077 km (0.079 R)
• M8: 15,833,139 km (0.119 R)
• M9: 18,106,877 km (0.048 R)
• M10: 19,705,780 km (0.076 R)
• M11: 20,688,937 km (0.103 R)
• M12: 26,923,727 km (0.1 R)
• M13: 32,378,514 km (0.098 R)
• M14: 35,865,491 km (0.102 R)
• M15: 38,073,256 km (0.041 R)
• M16: 39,287,094 km (0.027 R)
• M17: 40,370,033 km (0.113 R)
• M18: 47,462,468 km (0.084 R)
• M19: 51,576,110 km (0.058 R)
• M20: 53,813,795 km (0.045 R)
• M21: 82,588,646 km (0.075 R)

Planet 8 - Ice Giant

Semi-Major Axis: 19.47 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 27.1

Radius: 6.7

Gravity: 0.6 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 18.83 AU - 20.11 AU

Year: 30056 Days

Day: 15.4 Hours

Environment

Temp: -192 °C

Axial Tilt: 14.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 34,015,509 km

• M1: 85,869 km (0.078 R)
• M2: 371,452 km (0.119 R)
• M3: 919,429 km (0.062 R)
• M4: 2,743,625 km (0.092 R)
• M5: 4,427,499 km (0.076 R)
• M6: 5,221,265 km (0.108 R)
• M7: 5,606,479 km (0.11 R)
• M8: 9,618,694 km (0.079 R)
• M9: 11,181,992 km (0.102 R)
• M10: 14,570,982 km (0.091 R)
• M11: 17,261,949 km (0.106 R)
• M12: 21,968,597 km (0.093 R)
• M13: 26,419,882 km (0.079 R)
• M14: 28,810,007 km (0.03 R)
• M15: 31,824,853 km (0.079 R)
• M16: 32,610,241 km (0.091 R)
• M17: 34,015,564 km (0.109 R)

Kuiper Belt

Range: 31.4 - 52.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 351 - 17,577 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit