🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.53 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.05 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.06

Radius: 1.02

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.83 AU - 1.27 AU

Year: 376 Days

Day: 37.7 Hours

Environment

Temp: 93 °C

Axial Tilt: 41.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.13 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.16

Radius: 1.58

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.92 AU - 1.34 AU

Year: 420 Days

Day: 28.5 Hours

Environment

Temp: 45 °C

Axial Tilt: 28.4 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.5

Radius: 1.83

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 1.65 AU - 1.67 AU

Year: 748 Days

Day: 28.2 Hours

Environment

Temp: -34 °C

Axial Tilt: 31.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 48,317,340 km

• M1: 89,759 km (0.109 R)
• M2: 257,009 km (0.113 R)

Planet 4 - Terrestrial

Semi-Major Axis: 4.07 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.96

Radius: 1.31

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 3.92 AU - 4.22 AU

Year: 2873 Days

Day: 37 Hours

Environment

Temp: -116 °C

Axial Tilt: 28.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 48,317,340 km

• M1: 1,307,485 km (0.112 R)

Asteroid Belt

Center: 7.77 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 11.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 749.8

Radius: 11.8

Gravity: 5.38 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 10.82 AU - 12.1 AU

Year: 13572 Days

Day: 5.7 Hours

Environment

Temp: -184 °C

Axial Tilt: 27.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 48,317,340 km

• M1: 147,055 km (0.039 R)
• M2: 629,957 km (0.044 R)
• M3: 1,322,595 km (0.111 R)
• M4: 1,946,418 km (0.046 R)
• M5: 3,594,089 km (0.118 R)
• M6: 4,751,378 km (0.117 R)
• M7: 7,081,215 km (0.088 R)
• M8: 8,788,576 km (0.097 R)
• M9: 11,691,074 km (0.113 R)
• M10: 14,753,940 km (0.035 R)
• M11: 16,056,938 km (0.112 R)
• M12: 16,507,826 km (0.069 R)
• M13: 19,141,197 km (0.036 R)
• M14: 22,506,850 km (0.025 R)
• M15: 24,824,869 km (0.058 R)
• M16: 34,937,984 km (0.11 R)
• M17: 36,336,276 km (0.083 R)
• M18: 41,313,696 km (0.087 R)
• M19: 49,842,570 km (0.083 R)
• M20: 59,474,728 km (0.106 R)
• M21: 60,013,579 km (0.046 R)

Planet 6 - Gas Giant

Semi-Major Axis: 12.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 713.3

Radius: 11.6

Gravity: 5.3 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 10.26 AU - 14.44 AU

Year: 15184 Days

Day: 11 Hours

Environment

Temp: -174 °C

Axial Tilt: 44.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 48,317,340 km

• M1: 144,212 km (0.051 R)
• M2: 883,525 km (0.101 R)
• M3: 1,322,595 km (0.093 R)
• M4: 1,961,228 km (0.027 R)
• M5: 2,866,445 km (0.104 R)
• M6: 3,742,041 km (0.115 R)
• M7: 4,181,560 km (0.103 R)
• M8: 4,754,370 km (0.085 R)
• M9: 9,305,137 km (0.025 R)
• M10: 10,567,743 km (0.096 R)
• M11: 12,768,477 km (0.038 R)
• M12: 13,838,551 km (0.097 R)
• M13: 16,004,728 km (0.12 R)
• M14: 21,549,124 km (0.096 R)
• M15: 23,161,042 km (0.057 R)
• M16: 24,547,515 km (0.049 R)
• M17: 27,485,617 km (0.088 R)
• M18: 29,039,191 km (0.066 R)
• M19: 35,711,555 km (0.056 R)
• M20: 36,233,352 km (0.108 R)
• M21: 37,964,200 km (0.077 R)
• M22: 41,303,523 km (0.114 R)
• M23: 43,635,455 km (0.104 R)
• M24: 46,517,159 km (0.119 R)
• M25: 51,156,488 km (0.073 R)
• M26: 52,994,148 km (0.107 R)
• M27: 53,502,781 km (0.036 R)
• M28: 54,186,144 km (0.104 R)
• M29: 55,570,223 km (0.03 R)

Planet 7 - Ice Giant

Semi-Major Axis: 17.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 111.1

Radius: 7.7

Gravity: 1.87 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 15.29 AU - 19.27 AU

Year: 25130 Days

Day: 20.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 48,317,340 km

• M1: 113,694 km (0.109 R)
• M2: 581,786 km (0.104 R)
• M3: 1,200,373 km (0.107 R)
• M4: 1,735,934 km (0.118 R)
• M5: 2,618,412 km (0.025 R)
• M6: 2,869,138 km (0.075 R)
• M7: 3,903,008 km (0.026 R)
• M8: 4,489,881 km (0.117 R)
• M9: 5,563,096 km (0.107 R)
• M10: 7,397,465 km (0.114 R)
• M11: 7,773,554 km (0.098 R)
• M12: 8,074,994 km (0.056 R)
• M13: 8,519,000 km (0.119 R)
• M14: 14,405,078 km (0.045 R)
• M15: 16,424,051 km (0.104 R)
• M16: 21,180,366 km (0.088 R)
• M17: 30,767,345 km (0.119 R)
• M18: 33,520,694 km (0.072 R)
• M19: 38,758,116 km (0.069 R)
• M20: 40,275,786 km (0.095 R)
• M21: 46,320,288 km (0.104 R)

Kuiper Belt

Range: 31.4 - 57.4 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 536 - 12,482 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit