🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.53 AU

Composition

Type: Inner System (Rocky)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.23

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 0.99 AU - 1.11 AU

Year: 484 Days

Day: 30.8 Hours

Environment

Temp: -78 °C

Axial Tilt: 16.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Terrestrial

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.75

Radius: 1.86

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.18 AU - 1.6 AU

Year: 737 Days

Day: 33.1 Hours

Environment

Temp: -105 °C

Axial Tilt: 2.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 3 - Gas Giant

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 308.7

Radius: 12.9

Gravity: 1.86 G

Time & Orbit

Eccentricity (e): 0.242

Orbit Range: 1.84 AU - 3.02 AU

Year: 1703 Days

Day: 11.5 Hours

Environment

Temp: -150 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 30,847,480 km

• M1: 161,117 km (0.075 R)
• M2: 666,907 km (0.115 R)
• M3: 1,141,282 km (0.066 R)
• M4: 1,734,587 km (0.035 R)
• M5: 2,516,835 km (0.103 R)
• M6: 3,023,822 km (0.106 R)
• M7: 3,538,139 km (0.117 R)
• M8: 4,781,447 km (0.059 R)
• M9: 5,341,542 km (0.113 R)
• M10: 5,880,692 km (0.056 R)
• M11: 6,342,501 km (0.082 R)
• M12: 6,876,117 km (0.06 R)
• M13: 7,489,917 km (0.096 R)
• M14: 8,410,691 km (0.118 R)
• M15: 9,703,516 km (0.093 R)
• M16: 10,413,657 km (0.113 R)
• M17: 10,830,138 km (0.036 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 94.7

Radius: 9.4

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.003

Orbit Range: 3.02 AU - 3.04 AU

Year: 2371 Days

Day: 12 Hours

Environment

Temp: -158 °C

Axial Tilt: 2.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 30,847,480 km

• M1: 118,482 km (0.086 R)
• M2: 686,205 km (0.12 R)
• M3: 1,186,760 km (0.098 R)
• M4: 1,781,561 km (0.109 R)
• M5: 3,052,844 km (0.091 R)
• M6: 4,864,773 km (0.096 R)
• M7: 7,114,576 km (0.086 R)
• M8: 7,709,227 km (0.115 R)
• M9: 8,916,781 km (0.071 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 823.8

Radius: 10.7

Gravity: 7.2 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 3.25 AU - 4.49 AU

Year: 3423 Days

Day: 5.6 Hours

Environment

Temp: -172 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 30,847,480 km

• M1: 135,236 km (0.086 R)
• M2: 1,339,499 km (0.119 R)
• M3: 1,971,102 km (0.076 R)
• M4: 3,974,815 km (0.069 R)
• M5: 4,466,693 km (0.088 R)
• M6: 5,903,880 km (0.105 R)
• M7: 6,366,137 km (0.103 R)
• M8: 11,681,350 km (0.113 R)
• M9: 12,088,256 km (0.06 R)
• M10: 15,639,410 km (0.101 R)
• M11: 17,859,592 km (0.07 R)
• M12: 18,951,956 km (0.079 R)
• M13: 20,282,180 km (0.103 R)
• M14: 21,741,358 km (0.085 R)
• M15: 23,842,460 km (0.085 R)

Planet 6 - Gas Giant

Semi-Major Axis: 6.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 993.6

Radius: 9.1

Gravity: 12 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 5 AU - 8.34 AU

Year: 7745 Days

Day: 9.1 Hours

Environment

Temp: -192 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 30,847,480 km

• M1: 113,545 km (0.104 R)
• M2: 436,227 km (0.105 R)
• M3: 768,185 km (0.116 R)
• M4: 1,072,916 km (0.105 R)
• M5: 1,680,134 km (0.118 R)
• M6: 2,087,040 km (0.077 R)
• M7: 2,718,044 km (0.109 R)
• M8: 3,236,251 km (0.108 R)
• M9: 3,617,277 km (0.066 R)
• M10: 4,190,087 km (0.1 R)
• M11: 4,614,346 km (0.064 R)
• M12: 5,320,598 km (0.082 R)
• M13: 6,168,219 km (0.11 R)
• M14: 11,150,576 km (0.109 R)
• M15: 13,415,937 km (0.098 R)
• M16: 14,656,552 km (0.101 R)
• M17: 16,381,416 km (0.101 R)
• M18: 17,870,214 km (0.117 R)
• M19: 23,483,874 km (0.081 R)
• M20: 25,097,287 km (0.034 R)
• M21: 28,944,495 km (0.114 R)
• M22: 31,219,729 km (0.096 R)
• M23: 31,967,868 km (0.091 R)
• M24: 37,304,623 km (0.084 R)
• M25: 45,622,414 km (0.072 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 98.4

Radius: 14.5

Gravity: 0.47 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 6.64 AU - 7.72 AU

Year: 8650 Days

Day: 9.7 Hours

Environment

Temp: -185 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 30,847,480 km

• M1: 180,265 km (0.079 R)
• M2: 1,200,373 km (0.104 R)
• M3: 1,977,983 km (0.101 R)
• M4: 3,304,617 km (0.094 R)
• M5: 4,637,534 km (0.097 R)
• M6: 5,516,721 km (0.12 R)
• M7: 7,543,323 km (0.113 R)
• M8: 11,412,522 km (0.072 R)
• M9: 12,829,663 km (0.102 R)
• M10: 13,870,266 km (0.09 R)
• M11: 15,223,229 km (0.078 R)
• M12: 21,395,039 km (0.057 R)
• M13: 22,654,354 km (0.077 R)

Planet 8 - Gas Giant

Semi-Major Axis: 7.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 183.9

Radius: 13.2

Gravity: 1.06 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 6.16 AU - 9.62 AU

Year: 9964 Days

Day: 6.9 Hours

Environment

Temp: -198 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 30,847,480 km

• M1: 165,904 km (0.119 R)
• M2: 685,009 km (0.093 R)
• M3: 1,150,856 km (0.092 R)
• M4: 1,808,189 km (0.118 R)
• M5: 3,999,499 km (0.056 R)
• M6: 4,553,610 km (0.072 R)
• M7: 5,639,690 km (0.101 R)
• M8: 8,095,040 km (0.076 R)
• M9: 8,513,016 km (0.074 R)
• M10: 8,945,504 km (0.079 R)
• M11: 9,897,395 km (0.113 R)
• M12: 17,081,982 km (0.085 R)
• M13: 20,508,821 km (0.099 R)
• M14: 21,794,914 km (0.115 R)
• M15: 25,244,790 km (0.076 R)
• M16: 27,480,830 km (0.091 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 466 - 13,318 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit