🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.64 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.57

Radius: 1.84

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 1.21 AU - 1.35 AU

Year: 551 Days

Day: 40.5 Hours

Environment

Temp: -27 °C

Axial Tilt: 29.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.59

Radius: 1.46

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.45 AU - 1.49 AU

Year: 679 Days

Day: 15.5 Hours

Environment

Temp: -53 °C

Axial Tilt: 33.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 98,222,932 km

• M1: 453,880 km (0.105 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.22

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 1.8 AU - 2.14 AU

Year: 1053 Days

Day: 27.9 Hours

Environment

Temp: -86 °C

Axial Tilt: 37.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.12 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.36

Radius: 1.8

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 2.08 AU - 2.16 AU

Year: 1175 Days

Day: 17.7 Hours

Environment

Temp: -89 °C

Axial Tilt: 12 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 98,222,932 km

• M1: 549,623 km (0.038 R)

Planet 5 - Terrestrial

Semi-Major Axis: 3.99 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.83

Radius: 1.52

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 3.35 AU - 4.63 AU

Year: 3035 Days

Day: 37.5 Hours

Environment

Temp: -131 °C

Axial Tilt: 17.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 11.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 243.5

Radius: 12.6

Gravity: 1.53 G

Time & Orbit

Eccentricity (e): 0.236

Orbit Range: 8.83 AU - 14.29 AU

Year: 14967 Days

Day: 7.4 Hours

Environment

Temp: -178 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 98,222,932 km

• M1: 156,779 km (0.081 R)
• M2: 1,514,230 km (0.112 R)
• M3: 2,239,480 km (0.083 R)
• M4: 3,825,966 km (0.116 R)
• M5: 4,753,024 km (0.101 R)
• M6: 6,453,652 km (0.094 R)
• M7: 9,111,109 km (0.085 R)
• M8: 13,234,924 km (0.048 R)
• M9: 17,807,233 km (0.09 R)
• M10: 24,835,491 km (0.062 R)
• M11: 27,827,598 km (0.1 R)
• M12: 40,938,056 km (0.094 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 406.8

Radius: 5.1

Gravity: 15.64 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 11.21 AU - 15.55 AU

Year: 18637 Days

Day: 20.7 Hours

Environment

Temp: -190 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 98,222,932 km

• M1: 69,713 km (0.106 R)
• M2: 395,686 km (0.07 R)
• M3: 1,249,890 km (0.047 R)
• M4: 1,596,658 km (0.036 R)
• M5: 1,968,558 km (0.111 R)
• M6: 2,354,970 km (0.067 R)
• M7: 2,767,411 km (0.059 R)
• M8: 3,101,164 km (0.089 R)
• M9: 4,295,254 km (0.048 R)
• M10: 5,470,944 km (0.084 R)
• M11: 6,554,780 km (0.051 R)
• M12: 7,103,655 km (0.105 R)
• M13: 7,367,097 km (0.054 R)
• M14: 10,483,669 km (0.053 R)
• M15: 11,351,636 km (0.067 R)
• M16: 11,833,640 km (0.084 R)
• M17: 12,773,863 km (0.05 R)
• M18: 13,229,388 km (0.073 R)
• M19: 13,898,689 km (0.115 R)
• M20: 17,192,086 km (0.113 R)
• M21: 20,261,835 km (0.076 R)
• M22: 25,064,824 km (0.064 R)
• M23: 29,212,126 km (0.116 R)
• M24: 37,232,965 km (0.076 R)
• M25: 52,654,262 km (0.103 R)
• M26: 52,820,166 km (0.111 R)
• M27: 53,991,218 km (0.045 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 930

Radius: 3.7

Gravity: 67.93 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 15.75 AU - 16.95 AU

Year: 25175 Days

Day: 20 Hours

Environment

Temp: -200 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 98,222,932 km

• M1: 46,076 km (0.088 R)
• M2: 266,733 km (0.084 R)
• M3: 618,587 km (0.099 R)
• M4: 762,800 km (0.098 R)
• M5: 1,507,498 km (0.042 R)
• M6: 1,999,974 km (0.104 R)
• M7: 2,490,356 km (0.054 R)
• M8: 4,513,069 km (0.102 R)
• M9: 6,235,538 km (0.04 R)
• M10: 7,689,480 km (0.106 R)
• M11: 9,727,302 km (0.104 R)
• M12: 11,667,288 km (0.069 R)
• M13: 12,916,729 km (0.09 R)
• M14: 14,662,237 km (0.116 R)
• M15: 16,648,897 km (0.101 R)
• M16: 20,935,773 km (0.107 R)
• M17: 61,840,768 km (0.112 R)
• M18: 66,042,673 km (0.082 R)
• M19: 66,268,865 km (0.076 R)
• M20: 68,792,132 km (0.091 R)
• M21: 73,299,965 km (0.111 R)
• M22: 74,029,254 km (0.117 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 387 - 17,454 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit