🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.92

Radius: 1.54

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.47 AU - 0.65 AU

Year: 158 Days

Day: 37.2 Hours

Environment

Temp: 167 °C

Axial Tilt: 1.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.08 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.15

Radius: 0.47

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.85 AU - 1.31 AU

Year: 423 Days

Day: 42.2 Hours

Environment

Temp: 1 °C

Axial Tilt: 23 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 1.29 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.89

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 1.23 AU - 1.35 AU

Year: 552 Days

Day: 26.5 Hours

Environment

Temp: -35 °C

Axial Tilt: 6.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 1.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.04

Radius: 1.56

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 1.37 AU - 1.65 AU

Year: 699 Days

Day: 46.7 Hours

Environment

Temp: -57 °C

Axial Tilt: 38.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 71,422,492 km

• M1: 1,267,692 km (0.096 R)

Planet 5 - Terrestrial

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.39

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.85 AU - 2.66 AU

Year: 1271 Days

Day: 36 Hours

Environment

Temp: -90 °C

Axial Tilt: 24.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 4.31 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.77

Radius: 0.9

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 4 AU - 4.62 AU

Year: 3371 Days

Day: 13.1 Hours

Environment

Temp: -134 °C

Axial Tilt: 49.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 71,422,492 km

• M1: 1,130,511 km (0.105 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 364.9

Radius: 15

Gravity: 1.62 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 5.26 AU - 5.72 AU

Year: 4846 Days

Day: 5.6 Hours

Environment

Temp: -148 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 71,422,492 km

• M1: 186,549 km (0.118 R)
• M2: 1,180,327 km (0.075 R)
• M3: 1,837,959 km (0.091 R)
• M4: 2,427,076 km (0.12 R)
• M5: 2,933,913 km (0.08 R)
• M6: 5,222,312 km (0.109 R)
• M7: 5,882,936 km (0.101 R)
• M8: 7,087,349 km (0.075 R)
• M9: 8,844,525 km (0.102 R)
• M10: 10,710,759 km (0.094 R)
• M11: 11,736,851 km (0.06 R)
• M12: 12,319,534 km (0.119 R)
• M13: 13,689,103 km (0.047 R)
• M14: 15,474,853 km (0.071 R)
• M15: 16,786,078 km (0.079 R)
• M16: 18,348,478 km (0.094 R)
• M17: 22,711,201 km (0.077 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 915.1

Radius: 8.6

Gravity: 12.37 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 5.52 AU - 8 AU

Year: 6621 Days

Day: 5.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 71,422,492 km

• M1: 106,962 km (0.044 R)
• M2: 381,325 km (0.058 R)
• M3: 666,758 km (0.08 R)
• M4: 1,102,836 km (0.035 R)
• M5: 1,531,284 km (0.082 R)
• M6: 2,407,329 km (0.066 R)
• M7: 3,399,312 km (0.042 R)
• M8: 4,641,872 km (0.072 R)
• M9: 5,258,066 km (0.118 R)
• M10: 5,666,319 km (0.1 R)
• M11: 6,300,763 km (0.114 R)
• M12: 7,018,833 km (0.089 R)
• M13: 7,592,391 km (0.064 R)
• M14: 7,991,967 km (0.035 R)
• M15: 8,321,531 km (0.081 R)
• M16: 9,185,608 km (0.103 R)
• M17: 12,628,005 km (0.059 R)
• M18: 13,650,357 km (0.037 R)
• M19: 14,543,755 km (0.098 R)
• M20: 15,666,637 km (0.106 R)
• M21: 16,512,763 km (0.062 R)
• M22: 17,320,591 km (0.057 R)
• M23: 21,442,012 km (0.117 R)
• M24: 22,566,091 km (0.111 R)
• M25: 25,106,263 km (0.068 R)
• M26: 27,550,243 km (0.096 R)
• M27: 31,455,944 km (0.074 R)
• M28: 32,279,032 km (0.089 R)
• M29: 35,494,040 km (0.12 R)
• M30: 39,745,312 km (0.089 R)

Planet 9 - Ice Giant

Semi-Major Axis: 12.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 747.3

Radius: 7.7

Gravity: 12.6 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 12.36 AU - 13.4 AU

Year: 17414 Days

Day: 17.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 71,422,492 km

• M1: 113,545 km (0.104 R)
• M2: 504,893 km (0.064 R)
• M3: 908,209 km (0.118 R)
• M4: 1,499,719 km (0.11 R)
• M5: 2,002,367 km (0.102 R)
• M6: 2,411,218 km (0.117 R)
• M7: 2,777,284 km (0.064 R)
• M8: 3,395,872 km (0.054 R)
• M9: 3,917,669 km (0.086 R)
• M10: 4,525,036 km (0.083 R)
• M11: 5,083,934 km (0.039 R)
• M12: 5,966,861 km (0.041 R)
• M13: 6,552,237 km (0.043 R)
• M14: 6,814,482 km (0.046 R)
• M15: 7,129,386 km (0.102 R)
• M16: 8,487,286 km (0.08 R)
• M17: 10,067,189 km (0.115 R)
• M18: 12,960,412 km (0.119 R)
• M19: 15,734,554 km (0.042 R)
• M20: 18,272,632 km (0.069 R)
• M21: 22,227,700 km (0.093 R)
• M22: 24,351,691 km (0.108 R)
• M23: 25,949,396 km (0.048 R)
• M24: 33,554,952 km (0.095 R)
• M25: 38,708,000 km (0.058 R)
• M26: 48,043,057 km (0.116 R)
• M27: 48,868,837 km (0.119 R)
• M28: 50,209,533 km (0.083 R)
• M29: 55,275,665 km (0.098 R)
• M30: 58,024,975 km (0.075 R)
• M31: 60,098,102 km (0.032 R)
• M32: 63,004,041 km (0.069 R)
• M33: 69,094,469 km (0.119 R)
• M34: 69,724,276 km (0.104 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 284 - 13,183 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit