🌌 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: 2.48

Radius: 1.44

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.4 AU - 0.62 AU

Year: 134 Days

Day: 42 Hours

Environment

Temp: 240 °C

Axial Tilt: 31.1 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.96 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.8

Radius: 1.51

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 0.87 AU - 1.05 AU

Year: 347 Days

Day: 27.4 Hours

Environment

Temp: 38 °C

Axial Tilt: 36.5 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 3 - Terrestrial

Semi-Major Axis: 2.08 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.99

Radius: 1

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 1.99 AU - 2.17 AU

Year: 1107 Days

Day: 12.8 Hours

Environment

Temp: -76 °C

Axial Tilt: 25.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 33,645,472 km

• M1: 82,877 km (0.083 R)

Planet 4 - Terrestrial

Semi-Major Axis: 3.29 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.11

Radius: 0.41

Gravity: 0.65 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 2.82 AU - 3.76 AU

Year: 2202 Days

Day: 18.9 Hours

Environment

Temp: -106 °C

Axial Tilt: 26.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 4.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.07

Radius: 1.03

Gravity: 1.01 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 3.74 AU - 5 AU

Year: 3371 Days

Day: 13.2 Hours

Environment

Temp: -141 °C

Axial Tilt: 46.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.83 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 5.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 707.9

Radius: 11.8

Gravity: 5.08 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 3.98 AU - 6.6 AU

Year: 4489 Days

Day: 7.6 Hours

Environment

Temp: -142 °C

Axial Tilt: 39.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 33,645,472 km

• M1: 160,219 km (0.12 R)
• M2: 1,257,669 km (0.076 R)
• M3: 1,982,920 km (0.09 R)
• M4: 3,431,626 km (0.098 R)
• M5: 3,918,267 km (0.08 R)
• M6: 5,084,084 km (0.12 R)
• M7: 8,534,259 km (0.06 R)
• M8: 9,351,662 km (0.109 R)
• M9: 12,118,924 km (0.115 R)
• M10: 16,018,042 km (0.064 R)
• M11: 20,207,531 km (0.073 R)
• M12: 23,029,096 km (0.096 R)
• M13: 23,773,495 km (0.095 R)
• M14: 25,704,953 km (0.12 R)

Planet 7 - Gas Giant

Semi-Major Axis: 6.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 748.7

Radius: 10.6

Gravity: 6.66 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 5.64 AU - 6.88 AU

Year: 5779 Days

Day: 12.9 Hours

Environment

Temp: -146 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 33,645,472 km

• M1: 132,693 km (0.104 R)
• M2: 684,410 km (0.103 R)
• M3: 1,053,169 km (0.084 R)
• M4: 1,545,346 km (0.081 R)
• M5: 2,381,897 km (0.067 R)
• M6: 7,069,098 km (0.098 R)
• M7: 9,853,413 km (0.109 R)
• M8: 11,987,427 km (0.044 R)
• M9: 13,243,600 km (0.095 R)
• M10: 13,903,626 km (0.081 R)
• M11: 15,111,330 km (0.115 R)
• M12: 16,325,316 km (0.111 R)
• M13: 17,342,432 km (0.106 R)
• M14: 19,643,397 km (0.101 R)
• M15: 20,866,958 km (0.112 R)
• M16: 22,835,666 km (0.058 R)
• M17: 27,051,633 km (0.1 R)
• M18: 32,150,677 km (0.085 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 350.3

Radius: 13.9

Gravity: 1.81 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 6.55 AU - 9.29 AU

Year: 8224 Days

Day: 6.2 Hours

Environment

Temp: -172 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 33,645,472 km

• M1: 173,085 km (0.099 R)
• M2: 624,122 km (0.085 R)
• M3: 1,104,032 km (0.041 R)
• M4: 1,595,760 km (0.098 R)
• M5: 2,347,340 km (0.052 R)
• M6: 3,473,663 km (0.065 R)
• M7: 3,967,934 km (0.069 R)
• M8: 4,879,434 km (0.115 R)
• M9: 5,561,600 km (0.084 R)
• M10: 6,210,107 km (0.11 R)
• M11: 6,703,780 km (0.093 R)
• M12: 7,475,555 km (0.119 R)
• M13: 9,493,182 km (0.11 R)
• M14: 9,972,194 km (0.084 R)
• M15: 10,513,140 km (0.035 R)
• M16: 11,168,977 km (0.074 R)
• M17: 13,517,963 km (0.083 R)
• M18: 15,633,576 km (0.05 R)
• M19: 16,864,916 km (0.041 R)
• M20: 20,154,274 km (0.067 R)
• M21: 22,062,993 km (0.111 R)
• M22: 24,169,930 km (0.074 R)
• M23: 27,270,794 km (0.059 R)
• M24: 28,871,491 km (0.096 R)
• M25: 30,628,070 km (0.074 R)
• M26: 31,197,290 km (0.117 R)
• M27: 33,444,998 km (0.097 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 444 - 11,877 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit