🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.83

Radius: 0.93

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.5 AU - 0.72 AU

Year: 308 Days

Day: 45.6 Hours

Environment

Temp: -129 °C

Axial Tilt: 27.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 747.9

Radius: 9.5

Gravity: 8.29 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 0.72 AU - 0.82 AU

Year: 436 Days

Day: 13.7 Hours

Environment

Temp: -144 °C

Axial Tilt: 47.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 59,747,154 km

• M1: 118,930 km (0.107 R)
• M2: 417,079 km (0.104 R)
• M3: 717,322 km (0.115 R)
• M4: 1,110,764 km (0.118 R)
• M5: 1,757,925 km (0.105 R)
• M6: 2,451,760 km (0.112 R)
• M7: 3,597,829 km (0.074 R)
• M8: 5,021,402 km (0.094 R)
• M9: 5,677,987 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.4

Radius: 9.5

Gravity: 7.18 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 1.01 AU - 1.11 AU

Year: 705 Days

Day: 11.6 Hours

Environment

Temp: -172 °C

Axial Tilt: 47.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 59,747,154 km

• M1: 118,182 km (0.118 R)
• M2: 512,373 km (0.038 R)
• M3: 863,329 km (0.113 R)
• M4: 1,384,678 km (0.097 R)
• M5: 2,040,216 km (0.111 R)
• M6: 2,616,616 km (0.062 R)
• M7: 3,132,879 km (0.078 R)
• M8: 3,701,650 km (0.094 R)
• M9: 4,560,341 km (0.066 R)
• M10: 4,976,523 km (0.106 R)
• M11: 5,601,692 km (0.11 R)
• M12: 6,099,255 km (0.082 R)
• M13: 6,794,286 km (0.114 R)
• M14: 7,770,861 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 463.8

Radius: 12.8

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.9 AU - 1.32 AU

Year: 755 Days

Day: 9.2 Hours

Environment

Temp: -169 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 59,747,154 km

• M1: 159,322 km (0.087 R)
• M2: 569,519 km (0.087 R)
• M3: 978,220 km (0.045 R)
• M4: 1,717,384 km (0.11 R)
• M5: 2,171,114 km (0.042 R)
• M6: 2,672,865 km (0.078 R)
• M7: 3,178,057 km (0.118 R)
• M8: 3,774,205 km (0.109 R)
• M9: 4,398,177 km (0.111 R)
• M10: 5,089,918 km (0.115 R)
• M11: 6,691,363 km (0.108 R)
• M12: 7,150,329 km (0.091 R)

Asteroid Belt

Center: 1.54 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 5 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 996.3

Radius: 10

Gravity: 9.96 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 1.85 AU - 2.07 AU

Year: 1772 Days

Day: 13.1 Hours

Environment

Temp: -181 °C

Axial Tilt: 133.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 59,747,154 km

• M1: 124,914 km (0.099 R)
• M2: 505,790 km (0.119 R)
• M3: 1,094,907 km (0.117 R)
• M4: 1,602,941 km (0.082 R)
• M5: 2,028,846 km (0.088 R)
• M6: 2,627,836 km (0.03 R)
• M7: 3,273,949 km (0.118 R)
• M8: 3,984,689 km (0.112 R)
• M9: 4,582,781 km (0.114 R)
• M10: 5,103,382 km (0.077 R)
• M11: 6,109,128 km (0.048 R)
• M12: 6,498,831 km (0.102 R)
• M13: 6,877,313 km (0.084 R)
• M14: 7,213,609 km (0.094 R)
• M15: 8,071,703 km (0.114 R)
• M16: 8,477,861 km (0.051 R)
• M17: 11,953,019 km (0.118 R)
• M18: 13,672,348 km (0.111 R)
• M19: 15,646,441 km (0.083 R)
• M20: 16,526,675 km (0.115 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 467

Radius: 14.2

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 3.32 AU - 4.6 AU

Year: 5088 Days

Day: 7.3 Hours

Environment

Temp: -203 °C

Axial Tilt: 32.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 59,747,154 km

• M1: 179,218 km (0.078 R)
• M2: 876,344 km (0.109 R)
• M3: 1,486,105 km (0.082 R)
• M4: 2,155,556 km (0.062 R)
• M5: 2,610,632 km (0.101 R)
• M6: 4,917,880 km (0.109 R)
• M7: 5,361,288 km (0.095 R)
• M8: 6,150,417 km (0.056 R)
• M9: 7,961,000 km (0.1 R)
• M10: 9,066,229 km (0.066 R)
• M11: 11,310,497 km (0.079 R)
• M12: 12,181,904 km (0.088 R)
• M13: 12,706,544 km (0.115 R)
• M14: 13,496,570 km (0.068 R)
• M15: 14,266,850 km (0.11 R)
• M16: 15,895,372 km (0.109 R)
• M17: 16,871,498 km (0.044 R)
• M18: 17,464,205 km (0.091 R)
• M19: 18,132,160 km (0.032 R)
• M20: 18,880,149 km (0.085 R)
• M21: 19,519,231 km (0.104 R)
• M22: 20,172,674 km (0.104 R)
• M23: 22,009,886 km (0.053 R)
• M24: 22,861,397 km (0.09 R)
• M25: 23,587,695 km (0.087 R)
• M26: 24,254,452 km (0.104 R)
• M27: 24,781,635 km (0.118 R)
• M28: 26,251,434 km (0.061 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.35 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 801.4

Radius: 6.3

Gravity: 20.19 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 6.64 AU - 8.06 AU

Year: 12866 Days

Day: 23.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 59,747,154 km

• M1: 79,436 km (0.114 R)
• M2: 292,015 km (0.086 R)
• M3: 623,075 km (0.086 R)
• M4: 882,777 km (0.078 R)
• M5: 1,821,803 km (0.081 R)
• M6: 3,076,331 km (0.053 R)
• M7: 3,301,027 km (0.11 R)
• M8: 4,281,790 km (0.091 R)
• M9: 5,230,839 km (0.04 R)
• M10: 5,552,026 km (0.107 R)
• M11: 5,848,529 km (0.12 R)
• M12: 7,228,120 km (0.113 R)
• M13: 7,762,933 km (0.077 R)
• M14: 9,897,844 km (0.069 R)
• M15: 10,114,462 km (0.057 R)
• M16: 10,389,572 km (0.115 R)
• M17: 12,085,563 km (0.114 R)
• M18: 12,395,530 km (0.11 R)
• M19: 14,576,069 km (0.081 R)
• M20: 16,845,917 km (0.061 R)
• M21: 19,936,908 km (0.111 R)
• M22: 20,195,862 km (0.055 R)
• M23: 24,552,900 km (0.077 R)
• M24: 25,351,902 km (0.101 R)
• M25: 25,962,561 km (0.054 R)
• M26: 28,942,401 km (0.119 R)
• M27: 34,567,430 km (0.093 R)
• M28: 35,951,959 km (0.071 R)
• M29: 39,235,034 km (0.098 R)
• M30: 40,189,019 km (0.045 R)
• M31: 40,602,508 km (0.088 R)
• M32: 42,999,514 km (0.114 R)
• M33: 44,452,708 km (0.081 R)
• M34: 51,560,701 km (0.043 R)
• M35: 52,376,159 km (0.062 R)
• M36: 55,212,984 km (0.05 R)
• M37: 55,553,319 km (0.083 R)
• M38: 59,389,906 km (0.068 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 413 - 16,734 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit