🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.66 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.13

Radius: 1.05

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.62 AU - 0.7 AU

Year: 192 Days

Day: 37 Hours

Environment

Temp: 210 °C

Axial Tilt: 17.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.53

Radius: 1.66

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.67 AU - 0.91 AU

Year: 251 Days

Day: 32.8 Hours

Environment

Temp: 170 °C

Axial Tilt: 21.3 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 88,585,362 km

• M1: 429,944 km (0.062 R)

Planet 3 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.53

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 0.96 AU - 0.96 AU

Year: 337 Days

Day: 14 Hours

Environment

Temp: 98 °C

Axial Tilt: 11.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 88,585,362 km

• M1: 489,335 km (0.073 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.17 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.16

Radius: 1.77

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 1.14 AU - 1.2 AU

Year: 453 Days

Day: 37.5 Hours

Environment

Temp: 22 °C

Axial Tilt: 81.6 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.24

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.61 AU - 1.71 AU

Year: 766 Days

Day: 32.1 Hours

Environment

Temp: -44 °C

Axial Tilt: 2.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 3.89 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.84

Radius: 1.28

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 3.73 AU - 4.05 AU

Year: 2748 Days

Day: 25.1 Hours

Environment

Temp: -118 °C

Axial Tilt: 152.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 88,585,362 km

• M1: 31,565 km (0.044 R)
• M2: 123,717 km (0.079 R)

Asteroid Belt

Center: 5.05 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 6.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 309.4

Radius: 12.2

Gravity: 2.08 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 5.05 AU - 7.35 AU

Year: 5529 Days

Day: 7.9 Hours

Environment

Temp: -147 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 88,585,362 km

• M1: 151,692 km (0.094 R)
• M2: 709,842 km (0.091 R)
• M3: 1,848,730 km (0.06 R)
• M4: 2,321,609 km (0.119 R)
• M5: 3,694,469 km (0.118 R)
• M6: 4,687,799 km (0.093 R)
• M7: 5,260,460 km (0.076 R)
• M8: 6,667,278 km (0.066 R)
• M9: 7,997,053 km (0.09 R)
• M10: 15,167,130 km (0.086 R)
• M11: 20,800,088 km (0.086 R)
• M12: 21,598,342 km (0.063 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 998.9

Radius: 13.1

Gravity: 5.82 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 7.5 AU - 10.22 AU

Year: 9445 Days

Day: 8 Hours

Environment

Temp: -168 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 88,585,362 km

• M1: 164,258 km (0.094 R)
• M2: 639,082 km (0.099 R)
• M3: 1,515,726 km (0.05 R)
• M4: 1,986,809 km (0.046 R)
• M5: 2,762,624 km (0.111 R)
• M6: 3,918,267 km (0.052 R)
• M7: 4,397,729 km (0.116 R)
• M8: 6,337,564 km (0.085 R)
• M9: 7,164,242 km (0.071 R)
• M10: 9,177,381 km (0.053 R)
• M11: 9,976,682 km (0.101 R)
• M12: 11,095,674 km (0.116 R)
• M13: 13,330,965 km (0.11 R)
• M14: 15,992,910 km (0.103 R)
• M15: 17,448,796 km (0.062 R)
• M16: 17,902,377 km (0.042 R)
• M17: 29,241,447 km (0.042 R)
• M18: 31,972,655 km (0.108 R)
• M19: 32,424,890 km (0.118 R)
• M20: 33,574,250 km (0.097 R)
• M21: 37,061,077 km (0.111 R)
• M22: 39,342,894 km (0.074 R)
• M23: 39,862,447 km (0.097 R)
• M24: 40,386,488 km (0.09 R)
• M25: 40,915,167 km (0.028 R)
• M26: 46,458,816 km (0.1 R)
• M27: 47,039,405 km (0.093 R)

Planet 9 - Ice Giant

Semi-Major Axis: 15.74 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 864.4

Radius: 5.7

Gravity: 26.61 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 15.72 AU - 15.76 AU

Year: 22366 Days

Day: 23.4 Hours

Environment

Temp: -198 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 88,585,362 km

• M1: 71,807 km (0.09 R)
• M2: 324,328 km (0.095 R)
• M3: 697,425 km (0.107 R)
• M4: 2,119,951 km (0.119 R)
• M5: 2,508,906 km (0.075 R)
• M6: 5,907,470 km (0.043 R)
• M7: 9,085,827 km (0.098 R)
• M8: 9,677,486 km (0.066 R)
• M9: 10,357,558 km (0.079 R)
• M10: 12,373,689 km (0.111 R)
• M11: 13,777,665 km (0.062 R)
• M12: 14,086,285 km (0.119 R)
• M13: 17,610,512 km (0.044 R)
• M14: 18,065,588 km (0.097 R)
• M15: 24,604,212 km (0.078 R)
• M16: 34,081,686 km (0.077 R)
• M17: 55,589,073 km (0.114 R)
• M18: 58,157,219 km (0.079 R)
• M19: 64,813,277 km (0.107 R)
• M20: 77,651,019 km (0.11 R)
• M21: 81,356,408 km (0.081 R)

Kuiper Belt

Range: 30.6 - 49.6 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 525 - 11,343 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit