🌌 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: 0.55 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.73

Radius: 1.49

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.43 AU - 0.67 AU

Year: 154 Days

Day: 22.9 Hours

Environment

Temp: 204 °C

Axial Tilt: 31.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.41

Radius: 1.42

Gravity: 1.2 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.81 AU - 1.03 AU

Year: 334 Days

Day: 45.9 Hours

Environment

Temp: 32 °C

Axial Tilt: 48.2 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 0.94 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.1

Radius: 1.35

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 0.93 AU - 0.95 AU

Year: 345 Days

Day: 24.9 Hours

Environment

Temp: 31 °C

Axial Tilt: 12.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 88,131,332 km

• M1: 31,416 km (0.093 R)

Planet 4 - Terrestrial

Semi-Major Axis: 1.03 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.21

Radius: 1.37

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1 AU - 1.06 AU

Year: 396 Days

Day: 48 Hours

Environment

Temp: 8 °C

Axial Tilt: 16.1 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 5 - Terrestrial

Semi-Major Axis: 1.19 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.51

Radius: 1.83

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 1.07 AU - 1.31 AU

Year: 492 Days

Day: 45.4 Hours

Environment

Temp: 5 °C

Axial Tilt: 12.2 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 6 - Gas Giant

Semi-Major Axis: 4.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 960.6

Radius: 11.6

Gravity: 7.14 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 3.71 AU - 4.99 AU

Year: 3436 Days

Day: 13.7 Hours

Environment

Temp: -129 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 88,131,332 km

• M1: 147,504 km (0.089 R)
• M2: 578,345 km (0.077 R)
• M3: 1,051,224 km (0.101 R)
• M4: 1,832,125 km (0.048 R)
• M5: 2,240,079 km (0.099 R)
• M6: 2,659,102 km (0.092 R)
• M7: 3,167,735 km (0.12 R)
• M8: 3,535,596 km (0.045 R)
• M9: 5,742,165 km (0.102 R)
• M10: 6,473,997 km (0.079 R)
• M11: 6,974,253 km (0.091 R)
• M12: 7,773,105 km (0.089 R)
• M13: 9,955,589 km (0.104 R)
• M14: 10,924,684 km (0.076 R)
• M15: 11,320,669 km (0.059 R)
• M16: 12,048,463 km (0.09 R)
• M17: 12,518,799 km (0.109 R)
• M18: 13,748,942 km (0.059 R)
• M19: 14,367,230 km (0.102 R)
• M20: 18,350,572 km (0.117 R)
• M21: 22,800,959 km (0.078 R)
• M22: 23,814,335 km (0.065 R)
• M23: 24,406,593 km (0.104 R)
• M24: 24,857,332 km (0.097 R)
• M25: 25,313,456 km (0.103 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 616.6

Radius: 13.4

Gravity: 3.43 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 4.08 AU - 5.38 AU

Year: 3896 Days

Day: 8.1 Hours

Environment

Temp: -135 °C

Axial Tilt: 47.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 88,131,332 km

• M1: 166,652 km (0.115 R)
• M2: 789,877 km (0.119 R)
• M3: 1,398,740 km (0.11 R)
• M4: 1,869,076 km (0.118 R)
• M5: 2,431,115 km (0.092 R)
• M6: 3,231,912 km (0.107 R)
• M7: 4,877,339 km (0.065 R)
• M8: 6,963,332 km (0.113 R)
• M9: 8,257,503 km (0.049 R)
• M10: 9,706,209 km (0.102 R)
• M11: 10,143,932 km (0.105 R)
• M12: 11,493,156 km (0.103 R)
• M13: 12,534,506 km (0.113 R)
• M14: 14,649,072 km (0.079 R)
• M15: 15,279,478 km (0.118 R)
• M16: 16,037,640 km (0.057 R)
• M17: 18,043,149 km (0.11 R)
• M18: 19,511,751 km (0.031 R)
• M19: 20,275,299 km (0.053 R)

Planet 8 - Gas Giant

Semi-Major Axis: 6.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 539.5

Radius: 12.6

Gravity: 3.4 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 6.02 AU - 7.56 AU

Year: 6701 Days

Day: 6.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 88,131,332 km

• M1: 156,629 km (0.066 R)
• M2: 588,967 km (0.045 R)
• M3: 2,431,414 km (0.07 R)
• M4: 2,934,063 km (0.067 R)
• M5: 3,958,509 km (0.081 R)
• M6: 4,580,088 km (0.115 R)
• M7: 5,528,988 km (0.082 R)
• M8: 6,339,808 km (0.103 R)
• M9: 7,372,033 km (0.114 R)
• M10: 7,777,593 km (0.061 R)
• M11: 8,354,742 km (0.085 R)
• M12: 8,755,215 km (0.105 R)
• M13: 9,638,292 km (0.064 R)
• M14: 10,533,635 km (0.081 R)
• M15: 13,067,972 km (0.043 R)
• M16: 13,829,276 km (0.091 R)
• M17: 15,862,610 km (0.086 R)
• M18: 16,416,122 km (0.118 R)
• M19: 17,302,789 km (0.09 R)
• M20: 18,354,911 km (0.076 R)
• M21: 19,240,829 km (0.116 R)
• M22: 24,023,324 km (0.051 R)
• M23: 25,083,225 km (0.109 R)
• M24: 26,861,046 km (0.071 R)
• M25: 28,540,731 km (0.041 R)
• M26: 30,666,367 km (0.108 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 981.7

Radius: 7

Gravity: 20.03 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 11.08 AU - 17.84 AU

Year: 20826 Days

Day: 16.2 Hours

Environment

Temp: -184 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 88,131,332 km

• M1: 87,216 km (0.111 R)
• M2: 591,959 km (0.112 R)
• M3: 914,193 km (0.114 R)
• M4: 3,456,758 km (0.062 R)
• M5: 4,059,488 km (0.083 R)
• M6: 4,583,080 km (0.101 R)
• M7: 4,842,333 km (0.11 R)
• M8: 6,941,640 km (0.095 R)
• M9: 9,463,412 km (0.092 R)
• M10: 10,007,798 km (0.072 R)
• M11: 11,766,172 km (0.086 R)
• M12: 12,183,251 km (0.067 R)
• M13: 12,538,396 km (0.083 R)
• M14: 15,798,882 km (0.119 R)
• M15: 17,265,539 km (0.082 R)
• M16: 22,844,343 km (0.118 R)
• M17: 24,266,271 km (0.117 R)
• M18: 29,899,678 km (0.073 R)
• M19: 30,545,791 km (0.106 R)
• M20: 31,732,401 km (0.07 R)
• M21: 36,200,441 km (0.074 R)
• M22: 37,082,320 km (0.083 R)
• M23: 44,996,945 km (0.113 R)
• M24: 53,586,705 km (0.101 R)
• M25: 56,873,221 km (0.116 R)
• M26: 58,264,631 km (0.08 R)
• M27: 62,996,112 km (0.091 R)
• M28: 64,700,181 km (0.119 R)
• M29: 74,388,439 km (0.07 R)
• M30: 78,226,671 km (0.084 R)
• M31: 85,516,276 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: 265 - 14,582 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit