🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 896.4

Radius: 13.6

Gravity: 4.85 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.64 AU - 0.74 AU

Year: 376 Days

Day: 9.5 Hours

Environment

Temp: -144 °C

Axial Tilt: 158.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 17,065,903 km

• M1: 169,345 km (0.096 R)
• M2: 693,386 km (0.112 R)
• M3: 1,194,389 km (0.075 R)
• M4: 1,632,412 km (0.117 R)
• M5: 2,129,376 km (0.087 R)
• M6: 2,609,286 km (0.067 R)
• M7: 3,401,706 km (0.102 R)
• M8: 4,547,326 km (0.118 R)
• M9: 5,697,734 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 883.2

Radius: 13.7

Gravity: 4.71 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 0.87 AU - 0.91 AU

Year: 551 Days

Day: 14.4 Hours

Environment

Temp: -160 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 17,065,903 km

• M1: 170,392 km (0.066 R)
• M2: 646,412 km (0.064 R)
• M3: 1,138,141 km (0.034 R)
• M4: 1,686,566 km (0.102 R)
• M5: 2,160,492 km (0.1 R)
• M6: 2,605,995 km (0.081 R)
• M7: 3,113,580 km (0.109 R)
• M8: 3,580,027 km (0.083 R)
• M9: 4,391,296 km (0.074 R)
• M10: 5,014,670 km (0.044 R)
• M11: 5,480,518 km (0.11 R)
• M12: 6,321,408 km (0.103 R)
• M13: 7,033,493 km (0.107 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 160.7

Radius: 13.5

Gravity: 0.88 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 1.31 AU - 1.33 AU

Year: 995 Days

Day: 9.7 Hours

Environment

Temp: -164 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 17,065,903 km

• M1: 167,998 km (0.076 R)
• M2: 619,186 km (0.099 R)
• M3: 1,087,876 km (0.066 R)
• M4: 2,436,052 km (0.085 R)
• M5: 3,464,088 km (0.049 R)
• M6: 4,111,997 km (0.086 R)
• M7: 5,415,892 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 810.3

Radius: 13.7

Gravity: 4.32 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 1.13 AU - 1.81 AU

Year: 1169 Days

Day: 8.4 Hours

Environment

Temp: -178 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 17,065,903 km

• M1: 170,691 km (0.102 R)
• M2: 770,878 km (0.117 R)
• M3: 1,230,592 km (0.077 R)
• M4: 1,783,805 km (0.112 R)
• M5: 2,526,259 km (0.087 R)
• M6: 3,074,087 km (0.041 R)
• M7: 3,653,180 km (0.11 R)
• M8: 4,411,641 km (0.072 R)
• M9: 5,520,610 km (0.07 R)
• M10: 6,335,171 km (0.079 R)
• M11: 7,931,978 km (0.091 R)
• M12: 9,567,532 km (0.053 R)
• M13: 10,943,084 km (0.084 R)
• M14: 11,626,148 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 145.2

Radius: 12.5

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 1.41 AU - 1.91 AU

Year: 1403 Days

Day: 10.3 Hours

Environment

Temp: -173 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 17,065,903 km

• M1: 155,881 km (0.061 R)
• M2: 635,791 km (0.112 R)
• M3: 1,200,373 km (0.096 R)
• M4: 1,592,918 km (0.087 R)
• M5: 2,055,176 km (0.092 R)
• M6: 2,682,888 km (0.095 R)
• M7: 4,026,875 km (0.089 R)
• M8: 4,685,256 km (0.097 R)
• M9: 5,910,013 km (0.114 R)
• M10: 7,559,180 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 254.7

Radius: 9.3

Gravity: 2.94 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 1.65 AU - 2.53 AU

Year: 1982 Days

Day: 8.5 Hours

Environment

Temp: -198 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 17,065,903 km

• M1: 115,639 km (0.109 R)
• M2: 547,977 km (0.097 R)
• M3: 897,886 km (0.08 R)
• M4: 2,142,242 km (0.068 R)
• M5: 3,156,964 km (0.047 R)
• M6: 3,558,335 km (0.099 R)
• M7: 4,392,044 km (0.053 R)
• M8: 6,606,541 km (0.106 R)
• M9: 7,341,665 km (0.025 R)
• M10: 9,844,437 km (0.088 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 280.3

Radius: 14.2

Gravity: 1.39 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 4.47 AU - 5.03 AU

Year: 6791 Days

Day: 14.3 Hours

Environment

Temp: -212 °C

Axial Tilt: 1.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 17,065,903 km

• M1: 179,966 km (0.087 R)
• M2: 624,272 km (0.098 R)
• M3: 1,088,624 km (0.077 R)
• M4: 2,303,358 km (0.096 R)
• M5: 3,429,980 km (0.043 R)
• M6: 5,129,861 km (0.116 R)
• M7: 5,589,724 km (0.041 R)
• M8: 6,561,961 km (0.119 R)
• M9: 7,541,079 km (0.112 R)
• M10: 8,540,842 km (0.041 R)
• M11: 9,546,588 km (0.043 R)
• M12: 10,891,323 km (0.089 R)
• M13: 13,190,194 km (0.093 R)
• M14: 16,367,952 km (0.078 R)
• M15: 17,371,006 km (0.102 R)
• M16: 19,047,998 km (0.101 R)
• M17: 20,966,740 km (0.055 R)
• M18: 22,793,928 km (0.108 R)
• M19: 23,598,167 km (0.081 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 25.8

Radius: 4.8

Gravity: 1.12 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 5.12 AU - 7.94 AU

Year: 10947 Days

Day: 17.2 Hours

Environment

Temp: -213 °C

Axial Tilt: 16.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 17,065,903 km

• M1: 59,690 km (0.099 R)
• M2: 699,071 km (0.072 R)
• M3: 879,935 km (0.082 R)
• M4: 1,478,925 km (0.053 R)
• M5: 2,185,475 km (0.115 R)
• M6: 3,481,890 km (0.109 R)
• M7: 4,476,118 km (0.115 R)
• M8: 5,744,109 km (0.088 R)
• M9: 7,119,961 km (0.099 R)
• M10: 10,801,265 km (0.113 R)
• M11: 16,262,635 km (0.073 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 198 - 14,247 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit