🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.68 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.36 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.49

Radius: 0.75

Gravity: 0.87 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 1.29 AU - 1.43 AU

Year: 565 Days

Day: 22.9 Hours

Environment

Temp: 14 °C

Axial Tilt: 22.9 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 2 - Terrestrial

Semi-Major Axis: 1.73 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.92

Radius: 1.89

Gravity: 1.38 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 1.65 AU - 1.81 AU

Year: 811 Days

Day: 31.6 Hours

Environment

Temp: -36 °C

Axial Tilt: 6.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 88,729,286 km

• M1: 516,412 km (0.096 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.81 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.6

Radius: 1.84

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 1.53 AU - 2.09 AU

Year: 868 Days

Day: 22.3 Hours

Environment

Temp: -49 °C

Axial Tilt: 17.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 88,729,286 km

• M1: 42,935 km (0.079 R)
• M2: 710,291 km (0.117 R)

Planet 4 - Gas Giant

Semi-Major Axis: 9.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 777.6

Radius: 12.4

Gravity: 5.06 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 9.71 AU - 10.17 AU

Year: 11171 Days

Day: 11.6 Hours

Environment

Temp: -164 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 88,729,286 km

• M1: 154,684 km (0.074 R)
• M2: 558,449 km (0.106 R)
• M3: 1,044,193 km (0.111 R)
• M4: 1,996,832 km (0.077 R)
• M5: 2,397,007 km (0.097 R)
• M6: 2,984,926 km (0.072 R)
• M7: 3,799,786 km (0.117 R)
• M8: 7,921,506 km (0.105 R)
• M9: 9,281,052 km (0.073 R)
• M10: 10,845,546 km (0.086 R)
• M11: 13,768,838 km (0.056 R)
• M12: 15,169,224 km (0.105 R)
• M13: 15,727,075 km (0.116 R)
• M14: 16,809,714 km (0.111 R)
• M15: 17,256,563 km (0.115 R)
• M16: 19,204,178 km (0.109 R)
• M17: 19,939,900 km (0.109 R)
• M18: 22,171,302 km (0.046 R)
• M19: 28,260,085 km (0.104 R)
• M20: 32,655,719 km (0.113 R)
• M21: 36,485,125 km (0.118 R)
• M22: 40,470,862 km (0.119 R)
• M23: 42,913,645 km (0.089 R)
• M24: 43,609,275 km (0.115 R)
• M25: 50,059,038 km (0.093 R)

Planet 5 - Ice Giant

Semi-Major Axis: 16.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 708.5

Radius: 5.8

Gravity: 21.06 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 13.22 AU - 20.58 AU

Year: 24764 Days

Day: 19.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 88,729,286 km

• M1: 76,295 km (0.089 R)
• M2: 940,971 km (0.109 R)
• M3: 1,359,994 km (0.108 R)
• M4: 1,542,204 km (0.113 R)
• M5: 2,538,377 km (0.104 R)
• M6: 2,764,718 km (0.091 R)
• M7: 5,918,092 km (0.117 R)
• M8: 7,470,918 km (0.086 R)
• M9: 10,061,953 km (0.118 R)
• M10: 10,695,350 km (0.11 R)
• M11: 11,287,758 km (0.079 R)
• M12: 11,901,857 km (0.03 R)
• M13: 19,802,270 km (0.072 R)
• M14: 21,509,780 km (0.091 R)
• M15: 22,665,573 km (0.096 R)
• M16: 25,909,902 km (0.077 R)
• M17: 29,450,734 km (0.096 R)
• M18: 36,436,805 km (0.12 R)
• M19: 44,116,412 km (0.079 R)
• M20: 45,125,001 km (0.062 R)
• M21: 51,132,552 km (0.103 R)
• M22: 51,316,857 km (0.088 R)
• M23: 59,262,149 km (0.058 R)
• M24: 66,442,099 km (0.117 R)
• M25: 88,198,417 km (0.042 R)

Kuiper Belt

Range: 30.8 - 47.8 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 299 - 19,559 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit