🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.62 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.94

Radius: 1.73

Gravity: 1.32 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.58 AU - 0.66 AU

Year: 170 Days

Day: 35.6 Hours

Environment

Temp: 227 °C

Axial Tilt: 9.9 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.94 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.19

Radius: 1.77

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 0.92 AU - 0.96 AU

Year: 317 Days

Day: 46.7 Hours

Environment

Temp: 121 °C

Axial Tilt: 27.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 70,343,424 km

• M1: 256,710 km (0.111 R)

Planet 3 - Terrestrial

Semi-Major Axis: 1.23 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.58

Radius: 0.8

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 1.01 AU - 1.45 AU

Year: 475 Days

Day: 26.2 Hours

Environment

Temp: 34 °C

Axial Tilt: 13.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 70,343,424 km

• M1: 134,638 km (0.067 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.58 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.84

Radius: 1.28

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 1.23 AU - 1.93 AU

Year: 692 Days

Day: 40.6 Hours

Environment

Temp: -12 °C

Axial Tilt: 24.5 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 70,343,424 km

• M1: 51,611 km (0.08 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.54

Radius: 1.45

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 1.54 AU - 1.96 AU

Year: 806 Days

Day: 40.8 Hours

Environment

Temp: -35 °C

Axial Tilt: 5.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Terrestrial

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.61

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.66 AU - 2.32 AU

Year: 978 Days

Day: 13.5 Hours

Environment

Temp: -52 °C

Axial Tilt: 9.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 70,343,424 km

• M1: 61,186 km (0.066 R)

Planet 7 - Terrestrial

Semi-Major Axis: 1.99 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.51

Radius: 1.18

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 1.64 AU - 2.34 AU

Year: 978 Days

Day: 47.6 Hours

Environment

Temp: -42 °C

Axial Tilt: 47.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 8 - Terrestrial

Semi-Major Axis: 3.09 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.66

Radius: 1.85

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 2.86 AU - 3.32 AU

Year: 1892 Days

Day: 41.3 Hours

Environment

Temp: -94 °C

Axial Tilt: 16.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 9 - Ice Giant

Semi-Major Axis: 13.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 230.6

Radius: 7.9

Gravity: 3.69 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 12.28 AU - 15.14 AU

Year: 17679 Days

Day: 15.4 Hours

Environment

Temp: -173 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 70,343,424 km

• M1: 102,624 km (0.105 R)
• M2: 458,966 km (0.088 R)
• M3: 867,668 km (0.082 R)
• M4: 1,166,265 km (0.091 R)
• M5: 1,927,419 km (0.104 R)
• M6: 3,142,602 km (0.108 R)
• M7: 3,426,988 km (0.093 R)
• M8: 5,279,608 km (0.076 R)
• M9: 7,219,294 km (0.1 R)
• M10: 7,802,127 km (0.092 R)
• M11: 8,827,022 km (0.034 R)
• M12: 10,554,878 km (0.036 R)
• M13: 11,141,601 km (0.119 R)
• M14: 13,153,692 km (0.087 R)
• M15: 13,645,570 km (0.057 R)
• M16: 14,022,407 km (0.091 R)
• M17: 15,464,081 km (0.086 R)
• M18: 19,103,199 km (0.117 R)
• M19: 20,135,275 km (0.1 R)
• M20: 20,460,202 km (0.084 R)
• M21: 22,570,728 km (0.077 R)
• M22: 28,018,335 km (0.08 R)
• M23: 31,044,550 km (0.065 R)
• M24: 33,822,583 km (0.106 R)
• M25: 41,944,401 km (0.093 R)
• M26: 42,341,583 km (0.104 R)
• M27: 43,278,365 km (0.113 R)
• M28: 43,548,539 km (0.059 R)
• M29: 45,890,493 km (0.104 R)
• M30: 46,594,950 km (0.045 R)
• M31: 48,751,702 km (0.086 R)

Planet 10 - Ice Giant

Semi-Major Axis: 19.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 236

Radius: 6.4

Gravity: 5.76 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 15.76 AU - 23.5 AU

Year: 30288 Days

Day: 21.5 Hours

Environment

Temp: -202 °C

Axial Tilt: 42.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 70,343,424 km

• M1: 81,830 km (0.103 R)
• M2: 424,858 km (0.117 R)
• M3: 817,552 km (0.099 R)
• M4: 1,151,305 km (0.111 R)
• M5: 1,357,750 km (0.109 R)
• M6: 2,053,680 km (0.111 R)
• M7: 2,939,897 km (0.116 R)
• M8: 3,412,776 km (0.108 R)
• M9: 3,844,516 km (0.083 R)
• M10: 6,918,752 km (0.111 R)
• M11: 8,550,117 km (0.068 R)
• M12: 13,367,767 km (0.118 R)
• M13: 14,805,851 km (0.118 R)
• M14: 27,525,859 km (0.115 R)
• M15: 39,390,466 km (0.115 R)
• M16: 57,329,195 km (0.105 R)

Kuiper Belt

Range: 31.5 - 51.5 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 402 - 18,777 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit