🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.41 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.82 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.52

Radius: 1.18

Gravity: 1.09 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 0.81 AU - 0.83 AU

Year: 267 Days

Day: 36.2 Hours

Environment

Temp: 112 °C

Axial Tilt: 4.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.25 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.8

Radius: 1.71

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.98 AU - 1.52 AU

Year: 503 Days

Day: 45.9 Hours

Environment

Temp: -1 °C

Axial Tilt: 54.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.52

Radius: 1.45

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 1.45 AU - 2.13 AU

Year: 862 Days

Day: 27 Hours

Environment

Temp: -47 °C

Axial Tilt: 27.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.27

Radius: 1.61

Gravity: 1.26 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 1.66 AU - 2.36 AU

Year: 1026 Days

Day: 45.7 Hours

Environment

Temp: -66 °C

Axial Tilt: 29.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 58,975,921 km

• M1: 128,804 km (0.071 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.81

Radius: 1.51

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 1.89 AU - 2.73 AU

Year: 1264 Days

Day: 17.4 Hours

Environment

Temp: -68 °C

Axial Tilt: 37.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.04 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.81

Radius: 0.92

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 3.71 AU - 4.37 AU

Year: 2922 Days

Day: 13.7 Hours

Environment

Temp: -111 °C

Axial Tilt: 35.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.98 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 5.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 874.8

Radius: 10.9

Gravity: 7.36 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 5.63 AU - 6.19 AU

Year: 5171 Days

Day: 5.8 Hours

Environment

Temp: -149 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 58,975,921 km

• M1: 135,835 km (0.096 R)
• M2: 476,469 km (0.103 R)
• M3: 829,520 km (0.057 R)
• M4: 1,424,022 km (0.115 R)
• M5: 1,895,106 km (0.057 R)
• M6: 2,335,672 km (0.095 R)
• M7: 2,769,954 km (0.105 R)
• M8: 3,425,941 km (0.048 R)
• M9: 3,802,628 km (0.112 R)
• M10: 4,854,301 km (0.107 R)
• M11: 6,849,937 km (0.117 R)
• M12: 8,841,533 km (0.074 R)
• M13: 9,383,676 km (0.056 R)
• M14: 9,948,109 km (0.065 R)
• M15: 10,673,509 km (0.111 R)
• M16: 11,827,357 km (0.071 R)
• M17: 13,492,830 km (0.112 R)
• M18: 16,030,758 km (0.043 R)
• M19: 17,933,793 km (0.041 R)
• M20: 19,841,614 km (0.094 R)
• M21: 21,137,282 km (0.044 R)
• M22: 24,298,135 km (0.116 R)
• M23: 30,120,035 km (0.115 R)
• M24: 32,905,248 km (0.119 R)

Planet 8 - Gas Giant

Semi-Major Axis: 11.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 260.4

Radius: 9.8

Gravity: 2.71 G

Time & Orbit

Eccentricity (e): 0.088

Orbit Range: 10.82 AU - 12.9 AU

Year: 14699 Days

Day: 6.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 58,975,921 km

• M1: 122,521 km (0.077 R)
• M2: 740,809 km (0.12 R)
• M3: 1,944,324 km (0.08 R)
• M4: 4,228,683 km (0.058 R)
• M5: 5,166,213 km (0.102 R)
• M6: 7,249,812 km (0.09 R)
• M7: 8,282,337 km (0.102 R)
• M8: 8,766,585 km (0.091 R)
• M9: 10,894,914 km (0.113 R)
• M10: 16,417,170 km (0.049 R)
• M11: 16,831,406 km (0.077 R)
• M12: 19,542,119 km (0.098 R)
• M13: 20,164,447 km (0.058 R)
• M14: 22,701,028 km (0.096 R)
• M15: 25,719,764 km (0.094 R)
• M16: 26,185,162 km (0.087 R)
• M17: 28,996,106 km (0.065 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 296

Radius: 5.1

Gravity: 11.38 G

Time & Orbit

Eccentricity (e): 0.044

Orbit Range: 14.27 AU - 15.59 AU

Year: 20762 Days

Day: 22.2 Hours

Environment

Temp: -199 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 58,975,921 km

• M1: 63,429 km (0.072 R)
• M2: 232,176 km (0.1 R)
• M3: 448,644 km (0.104 R)
• M4: 799,002 km (0.096 R)
• M5: 1,086,978 km (0.089 R)
• M6: 1,342,790 km (0.086 R)
• M7: 1,718,580 km (0.07 R)
• M8: 2,067,143 km (0.057 R)
• M9: 2,789,252 km (0.083 R)
• M10: 3,071,843 km (0.085 R)
• M11: 4,064,574 km (0.093 R)
• M12: 4,813,012 km (0.072 R)
• M13: 5,910,612 km (0.081 R)
• M14: 6,337,415 km (0.076 R)
• M15: 7,036,934 km (0.059 R)
• M16: 7,252,206 km (0.087 R)
• M17: 7,516,246 km (0.106 R)
• M18: 7,741,091 km (0.081 R)
• M19: 8,883,870 km (0.116 R)
• M20: 9,705,461 km (0.095 R)
• M21: 9,972,344 km (0.091 R)
• M22: 10,244,013 km (0.066 R)
• M23: 10,745,465 km (0.045 R)
• M24: 11,617,471 km (0.059 R)
• M25: 15,147,832 km (0.059 R)
• M26: 17,782,100 km (0.097 R)
• M27: 21,778,608 km (0.041 R)
• M28: 25,619,533 km (0.076 R)
• M29: 28,999,398 km (0.111 R)
• M30: 32,903,752 km (0.075 R)
• M31: 36,370,833 km (0.109 R)
• M32: 53,499,340 km (0.065 R)
• M33: 53,665,095 km (0.094 R)

Kuiper Belt

Range: 30.5 - 59.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 361 - 15,838 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit