🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.46 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.44

Radius: 1.16

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 0.8 AU - 1.04 AU

Year: 331 Days

Day: 37 Hours

Environment

Temp: 18 °C

Axial Tilt: 41.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 2 - Terrestrial

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.37

Radius: 1.41

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 1.21 AU - 1.35 AU

Year: 543 Days

Day: 15.5 Hours

Environment

Temp: -23 °C

Axial Tilt: 27 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Terrestrial

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.29

Radius: 0.61

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 1.24 AU - 1.36 AU

Year: 555 Days

Day: 18.5 Hours

Environment

Temp: -27 °C

Axial Tilt: 23.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.25

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.6 AU - 1.68 AU

Year: 787 Days

Day: 34.8 Hours

Environment

Temp: -54 °C

Axial Tilt: 16.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 2.17 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.07

Radius: 1.03

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 1.64 AU - 2.7 AU

Year: 1198 Days

Day: 33.1 Hours

Environment

Temp: -75 °C

Axial Tilt: 16 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 6.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 169.3

Radius: 9

Gravity: 2.09 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 5.08 AU - 7.18 AU

Year: 5687 Days

Day: 5.4 Hours

Environment

Temp: -166 °C

Axial Tilt: 46.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 79,828,359 km

• M1: 112,797 km (0.113 R)
• M2: 410,197 km (0.064 R)
• M3: 816,954 km (0.119 R)
• M4: 1,644,380 km (0.034 R)
• M5: 2,150,320 km (0.097 R)
• M6: 2,709,965 km (0.085 R)
• M7: 3,066,756 km (0.097 R)
• M8: 3,510,164 km (0.079 R)
• M9: 3,796,495 km (0.112 R)
• M10: 5,597,204 km (0.108 R)
• M11: 5,909,565 km (0.045 R)
• M12: 6,288,795 km (0.072 R)
• M13: 6,655,310 km (0.09 R)
• M14: 7,587,305 km (0.095 R)
• M15: 9,783,102 km (0.07 R)
• M16: 10,509,101 km (0.082 R)
• M17: 11,026,261 km (0.114 R)
• M18: 11,602,063 km (0.119 R)
• M19: 12,111,294 km (0.115 R)
• M20: 13,311,967 km (0.112 R)
• M21: 14,347,333 km (0.114 R)
• M22: 17,887,417 km (0.046 R)
• M23: 18,338,754 km (0.111 R)

Planet 7 - Gas Giant

Semi-Major Axis: 11.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 728.9

Radius: 12.9

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 11.08 AU - 11.6 AU

Year: 14310 Days

Day: 13.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 122.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 79,828,359 km

• M1: 167,250 km (0.102 R)
• M2: 811,419 km (0.107 R)
• M3: 1,288,038 km (0.111 R)
• M4: 1,867,580 km (0.09 R)
• M5: 2,307,846 km (0.116 R)
• M6: 4,127,256 km (0.107 R)
• M7: 4,986,097 km (0.099 R)
• M8: 6,761,375 km (0.074 R)
• M9: 7,954,867 km (0.103 R)
• M10: 9,651,755 km (0.105 R)
• M11: 10,699,389 km (0.11 R)
• M12: 13,682,969 km (0.101 R)
• M13: 14,298,564 km (0.092 R)
• M14: 18,142,631 km (0.111 R)
• M15: 19,735,849 km (0.116 R)
• M16: 20,257,796 km (0.077 R)
• M17: 22,816,667 km (0.073 R)
• M18: 24,074,935 km (0.073 R)
• M19: 25,379,129 km (0.088 R)
• M20: 29,348,709 km (0.101 R)
• M21: 31,186,668 km (0.108 R)
• M22: 34,712,092 km (0.09 R)
• M23: 35,986,815 km (0.113 R)
• M24: 36,505,471 km (0.116 R)
• M25: 38,225,398 km (0.05 R)
• M26: 51,806,491 km (0.028 R)
• M27: 56,730,056 km (0.12 R)

Planet 8 - Ice Giant

Semi-Major Axis: 17.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 400.2

Radius: 5.3

Gravity: 14.25 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 14.64 AU - 20.94 AU

Year: 28119 Days

Day: 21.6 Hours

Environment

Temp: -210 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 79,828,359 km

• M1: 70,012 km (0.097 R)
• M2: 1,282,503 km (0.109 R)
• M3: 3,574,492 km (0.105 R)
• M4: 4,073,400 km (0.073 R)
• M5: 4,617,637 km (0.104 R)
• M6: 5,483,211 km (0.079 R)
• M7: 6,953,459 km (0.104 R)
• M8: 8,560,289 km (0.099 R)
• M9: 9,857,901 km (0.062 R)
• M10: 10,096,211 km (0.055 R)
• M11: 11,607,748 km (0.102 R)
• M12: 12,556,048 km (0.101 R)
• M13: 13,701,669 km (0.088 R)
• M14: 14,605,390 km (0.118 R)
• M15: 16,281,484 km (0.069 R)
• M16: 21,769,033 km (0.081 R)
• M17: 22,997,232 km (0.084 R)
• M18: 23,522,470 km (0.083 R)
• M19: 27,659,599 km (0.116 R)
• M20: 28,977,108 km (0.109 R)
• M21: 32,782,279 km (0.094 R)
• M22: 33,581,281 km (0.097 R)
• M23: 36,338,370 km (0.107 R)
• M24: 41,519,991 km (0.116 R)
• M25: 42,769,732 km (0.11 R)
• M26: 45,180,352 km (0.047 R)
• M27: 50,976,522 km (0.097 R)
• M28: 53,134,920 km (0.086 R)
• M29: 57,826,010 km (0.094 R)
• M30: 61,570,295 km (0.096 R)
• M31: 72,862,989 km (0.035 R)
• M32: 77,459,384 km (0.1 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 246 - 12,867 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit