🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.54

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 0.4 AU - 0.62 AU

Year: 232 Days

Day: 18.1 Hours

Environment

Temp: -121 °C

Axial Tilt: 23.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 75,023,597 km

• M1: 75,697 km (0.099 R)
• M2: 182,210 km (0.117 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.39

Radius: 1.42

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 0.39 AU - 0.65 AU

Year: 238 Days

Day: 19.1 Hours

Environment

Temp: -122 °C

Axial Tilt: 28.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 75,023,597 km

• M1: 33,211 km (0.067 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.72

Radius: 1.86

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.53 AU - 0.57 AU

Year: 259 Days

Day: 17.4 Hours

Environment

Temp: -125 °C

Axial Tilt: 19.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.42

Radius: 1.64

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 0.43 AU - 0.69 AU

Year: 266 Days

Day: 28.5 Hours

Environment

Temp: -127 °C

Axial Tilt: 28.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111.1

Radius: 8.1

Gravity: 1.69 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.77 AU - 1.27 AU

Year: 655 Days

Day: 9.1 Hours

Environment

Temp: -163 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 75,023,597 km

• M1: 111,002 km (0.105 R)
• M2: 750,084 km (0.09 R)
• M3: 1,070,074 km (0.079 R)
• M4: 1,331,271 km (0.106 R)
• M5: 1,700,629 km (0.118 R)
• M6: 2,489,009 km (0.115 R)
• M7: 3,340,221 km (0.041 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 322.6

Radius: 14.5

Gravity: 1.53 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 3.17 AU - 3.93 AU

Year: 4253 Days

Day: 11.5 Hours

Environment

Temp: -200 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 75,023,597 km

• M1: 180,265 km (0.083 R)
• M2: 685,009 km (0.066 R)
• M3: 3,472,765 km (0.115 R)
• M4: 6,246,609 km (0.045 R)
• M5: 6,842,307 km (0.102 R)
• M6: 7,601,068 km (0.098 R)
• M7: 11,006,963 km (0.101 R)
• M8: 12,930,941 km (0.099 R)
• M9: 14,284,353 km (0.082 R)
• M10: 19,264,017 km (0.108 R)
• M11: 21,090,009 km (0.099 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 587.7

Radius: 6.3

Gravity: 14.81 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 9.17 AU - 11.51 AU

Year: 21140 Days

Day: 20.7 Hours

Environment

Temp: -240 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 75,023,597 km

• M1: 78,389 km (0.104 R)
• M2: 508,184 km (0.034 R)
• M3: 714,629 km (0.072 R)
• M4: 1,292,077 km (0.106 R)
• M5: 1,537,118 km (0.089 R)
• M6: 2,021,965 km (0.109 R)
• M7: 2,246,810 km (0.027 R)
• M8: 2,698,895 km (0.081 R)
• M9: 3,574,940 km (0.107 R)
• M10: 3,905,402 km (0.078 R)
• M11: 4,523,989 km (0.111 R)
• M12: 5,630,864 km (0.071 R)
• M13: 5,954,294 km (0.091 R)
• M14: 8,314,949 km (0.102 R)
• M15: 8,523,039 km (0.095 R)
• M16: 9,003,997 km (0.066 R)
• M17: 11,490,463 km (0.118 R)
• M18: 13,739,667 km (0.06 R)
• M19: 16,510,519 km (0.1 R)
• M20: 18,026,394 km (0.11 R)
• M21: 19,087,192 km (0.047 R)
• M22: 19,632,776 km (0.086 R)
• M23: 22,720,177 km (0.083 R)
• M24: 25,894,943 km (0.1 R)
• M25: 27,015,580 km (0.114 R)
• M26: 27,472,751 km (0.105 R)
• M27: 28,520,385 km (0.084 R)
• M28: 31,067,738 km (0.105 R)
• M29: 33,631,097 km (0.035 R)
• M30: 38,450,243 km (0.045 R)
• M31: 46,266,732 km (0.116 R)
• M32: 55,629,015 km (0.084 R)
• M33: 57,115,270 km (0.106 R)
• M34: 58,057,587 km (0.119 R)
• M35: 65,354,523 km (0.076 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: 476 - 12,361 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit