🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3

Radius: 1.55

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.43 AU - 0.59 AU

Year: 136 Days

Day: 39.4 Hours

Environment

Temp: 163 °C

Axial Tilt: 34.7 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.59 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.54

Radius: 0.78

Gravity: 0.89 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 0.57 AU - 0.61 AU

Year: 169 Days

Day: 46.8 Hours

Environment

Temp: 214 °C

Axial Tilt: 0.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.25

Radius: 1.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 0.53 AU - 0.67 AU

Year: 173 Days

Day: 12.7 Hours

Environment

Temp: 202 °C

Axial Tilt: 13.5 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.31

Radius: 1.79

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 0.51 AU - 0.71 AU

Year: 178 Days

Day: 31.6 Hours

Environment

Temp: 172 °C

Axial Tilt: 14.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 5 - Terrestrial

Semi-Major Axis: 1.12 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.98

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 1.09 AU - 1.15 AU

Year: 442 Days

Day: 32.7 Hours

Environment

Temp: -0 °C

Axial Tilt: 127.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 6 - Terrestrial

Semi-Major Axis: 1.22 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.42

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1 AU - 1.44 AU

Year: 502 Days

Day: 36.3 Hours

Environment

Temp: -19 °C

Axial Tilt: 32.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 7 - Terrestrial

Semi-Major Axis: 3.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.66

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.233

Orbit Range: 2.6 AU - 4.18 AU

Year: 2327 Days

Day: 47.2 Hours

Environment

Temp: -108 °C

Axial Tilt: 26.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 4.15 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.52

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 3.55 AU - 4.75 AU

Year: 3152 Days

Day: 16.7 Hours

Environment

Temp: -139 °C

Axial Tilt: 6.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 82,896,653 km

• M1: 1,678,937 km (0.104 R)

Planet 9 - Ice Giant

Semi-Major Axis: 13.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 755.3

Radius: 3.4

Gravity: 65.34 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 10.58 AU - 16.18 AU

Year: 18245 Days

Day: 17 Hours

Environment

Temp: -186 °C

Axial Tilt: 37.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 82,896,653 km

• M1: 42,336 km (0.106 R)
• M2: 212,279 km (0.108 R)
• M3: 590,164 km (0.087 R)
• M4: 872,904 km (0.104 R)
• M5: 1,496,727 km (0.041 R)
• M6: 1,664,426 km (0.041 R)
• M7: 2,418,549 km (0.073 R)
• M8: 2,578,918 km (0.099 R)
• M9: 3,156,515 km (0.04 R)
• M10: 3,635,677 km (0.081 R)
• M11: 4,325,323 km (0.109 R)
• M12: 14,460,280 km (0.107 R)
• M13: 18,170,008 km (0.118 R)
• M14: 21,287,029 km (0.116 R)
• M15: 21,480,758 km (0.051 R)
• M16: 27,738,886 km (0.039 R)
• M17: 32,225,476 km (0.076 R)
• M18: 33,646,955 km (0.12 R)
• M19: 42,601,135 km (0.099 R)
• M20: 44,154,260 km (0.049 R)
• M21: 51,437,433 km (0.113 R)
• M22: 56,096,060 km (0.081 R)
• M23: 59,481,011 km (0.084 R)
• M24: 64,000,961 km (0.096 R)
• M25: 67,903,072 km (0.091 R)

Planet 10 - Ice Giant

Semi-Major Axis: 13.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 985.1

Radius: 7.8

Gravity: 16.19 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 12.37 AU - 15.09 AU

Year: 18965 Days

Day: 15.1 Hours

Environment

Temp: -189 °C

Axial Tilt: 2.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 82,896,653 km

• M1: 100,829 km (0.09 R)
• M2: 393,592 km (0.096 R)
• M3: 701,614 km (0.098 R)
• M4: 4,024,781 km (0.119 R)
• M5: 4,569,018 km (0.032 R)
• M6: 5,277,813 km (0.098 R)
• M7: 5,803,649 km (0.056 R)
• M8: 6,498,083 km (0.095 R)
• M9: 9,026,885 km (0.078 R)
• M10: 10,447,018 km (0.091 R)
• M11: 10,824,004 km (0.109 R)
• M12: 12,423,954 km (0.071 R)
• M13: 12,847,316 km (0.087 R)
• M14: 13,574,361 km (0.118 R)
• M15: 18,161,182 km (0.079 R)
• M16: 20,118,370 km (0.079 R)
• M17: 22,109,069 km (0.092 R)
• M18: 22,522,408 km (0.044 R)
• M19: 24,667,043 km (0.108 R)
• M20: 25,000,048 km (0.114 R)
• M21: 26,017,164 km (0.118 R)
• M22: 27,061,656 km (0.115 R)
• M23: 30,109,115 km (0.064 R)
• M24: 31,780,871 km (0.077 R)
• M25: 32,175,211 km (0.057 R)
• M26: 33,785,632 km (0.093 R)
• M27: 34,196,428 km (0.078 R)
• M28: 37,897,778 km (0.08 R)
• M29: 41,543,777 km (0.098 R)
• M30: 42,173,285 km (0.114 R)
• M31: 42,490,433 km (0.083 R)
• M32: 46,252,969 km (0.093 R)
• M33: 60,256,975 km (0.089 R)
• M34: 62,081,920 km (0.057 R)
• M35: 71,087,412 km (0.066 R)
• M36: 82,896,668 km (0.111 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: 278 - 15,478 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit