🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.73 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.18

Radius: 1.37

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.57 AU - 0.89 AU

Year: 239 Days

Day: 36.7 Hours

Environment

Temp: 80 °C

Axial Tilt: 9.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.99 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.04

Radius: 1.02

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.071

Orbit Range: 0.92 AU - 1.06 AU

Year: 377 Days

Day: 44.7 Hours

Environment

Temp: 8 °C

Axial Tilt: 39.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.75

Radius: 1.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 1.02 AU - 1.44 AU

Year: 522 Days

Day: 30.9 Hours

Environment

Temp: -32 °C

Axial Tilt: 5.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.38

Radius: 1.14

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 1.21 AU - 1.41 AU

Year: 574 Days

Day: 40.4 Hours

Environment

Temp: -30 °C

Axial Tilt: 27.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 1.86 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.04

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 1.49 AU - 2.23 AU

Year: 971 Days

Day: 47.7 Hours

Environment

Temp: -67 °C

Axial Tilt: 11.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 5.05 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 8.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 211.4

Radius: 9.8

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 6.31 AU - 10.15 AU

Year: 9040 Days

Day: 5.6 Hours

Environment

Temp: -177 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 86,420,930 km

• M1: 121,922 km (0.086 R)
• M2: 470,037 km (0.118 R)
• M3: 776,862 km (0.084 R)
• M4: 1,382,135 km (0.09 R)
• M5: 3,714,066 km (0.111 R)
• M6: 4,029,568 km (0.049 R)
• M7: 6,191,407 km (0.083 R)
• M8: 7,592,242 km (0.099 R)
• M9: 8,177,917 km (0.076 R)
• M10: 11,616,125 km (0.1 R)
• M11: 12,147,347 km (0.109 R)
• M12: 14,601,351 km (0.092 R)
• M13: 15,163,240 km (0.117 R)
• M14: 15,856,477 km (0.059 R)
• M15: 18,842,151 km (0.07 R)
• M16: 22,183,719 km (0.102 R)
• M17: 24,383,256 km (0.107 R)
• M18: 25,495,516 km (0.104 R)
• M19: 27,906,585 km (0.088 R)
• M20: 28,250,660 km (0.075 R)
• M21: 29,655,384 km (0.11 R)

Planet 7 - Gas Giant

Semi-Major Axis: 10.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 689

Radius: 11.2

Gravity: 5.49 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 9.81 AU - 12.07 AU

Year: 13855 Days

Day: 8.5 Hours

Environment

Temp: -179 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 86,420,930 km

• M1: 139,276 km (0.035 R)
• M2: 560,693 km (0.091 R)
• M3: 1,173,894 km (0.114 R)
• M4: 1,637,049 km (0.113 R)
• M5: 3,106,849 km (0.072 R)
• M6: 6,807,302 km (0.107 R)
• M7: 7,231,112 km (0.106 R)
• M8: 9,054,710 km (0.094 R)
• M9: 10,154,853 km (0.11 R)
• M10: 17,809,327 km (0.059 R)
• M11: 18,290,434 km (0.107 R)
• M12: 18,945,374 km (0.095 R)
• M13: 29,946,352 km (0.115 R)
• M14: 33,212,373 km (0.083 R)
• M15: 33,575,746 km (0.099 R)
• M16: 35,056,167 km (0.103 R)
• M17: 37,357,580 km (0.035 R)
• M18: 40,167,926 km (0.091 R)
• M19: 59,686,110 km (0.089 R)

Planet 8 - Ice Giant

Semi-Major Axis: 15.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 766.1

Radius: 6.9

Gravity: 16.09 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 13.52 AU - 17.06 AU

Year: 22892 Days

Day: 16.1 Hours

Environment

Temp: -208 °C

Axial Tilt: 73.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 86,420,930 km

• M1: 85,869 km (0.103 R)
• M2: 333,005 km (0.108 R)
• M3: 659,427 km (0.114 R)
• M4: 885,320 km (0.101 R)
• M5: 1,568,534 km (0.104 R)
• M6: 1,920,837 km (0.116 R)
• M7: 2,463,727 km (0.069 R)
• M8: 2,968,171 km (0.115 R)
• M9: 3,509,117 km (0.067 R)
• M10: 3,851,248 km (0.118 R)
• M11: 4,566,176 km (0.109 R)
• M12: 5,051,172 km (0.108 R)
• M13: 5,736,480 km (0.032 R)
• M14: 6,574,078 km (0.072 R)
• M15: 7,490,365 km (0.082 R)
• M16: 8,164,753 km (0.104 R)
• M17: 9,049,325 km (0.072 R)
• M18: 11,007,711 km (0.105 R)
• M19: 13,085,176 km (0.117 R)
• M20: 16,843,823 km (0.077 R)
• M21: 18,455,889 km (0.074 R)
• M22: 25,820,443 km (0.101 R)
• M23: 32,714,661 km (0.102 R)
• M24: 34,226,796 km (0.086 R)
• M25: 35,498,079 km (0.107 R)
• M26: 36,800,627 km (0.109 R)
• M27: 40,273,392 km (0.105 R)
• M28: 42,814,312 km (0.105 R)
• M29: 48,037,372 km (0.092 R)
• M30: 50,529,374 km (0.057 R)
• M31: 58,720,455 km (0.032 R)
• M32: 64,504,059 km (0.103 R)
• M33: 68,416,043 km (0.048 R)
• M34: 73,873,822 km (0.109 R)
• M35: 79,614,940 km (0.074 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 342 - 20,100 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit