🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 509.2

Radius: 9.1

Gravity: 6.15 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 0.47 AU - 0.69 AU

Year: 300 Days

Day: 12 Hours

Environment

Temp: -148 °C

Axial Tilt: 23 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 30,358,041 km

• M1: 113,246 km (0.078 R)
• M2: 400,324 km (0.116 R)
• M3: 719,865 km (0.09 R)
• M4: 1,084,435 km (0.101 R)
• M5: 1,411,606 km (0.092 R)
• M6: 2,191,908 km (0.113 R)
• M7: 3,064,363 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 983.3

Radius: 14

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.54 AU - 0.68 AU

Year: 323 Days

Day: 9.9 Hours

Environment

Temp: -143 °C

Axial Tilt: 36.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 30,358,041 km

• M1: 174,132 km (0.103 R)
• M2: 704,756 km (0.112 R)
• M3: 1,152,652 km (0.071 R)
• M4: 1,612,665 km (0.073 R)
• M5: 2,189,814 km (0.08 R)
• M6: 3,564,319 km (0.093 R)
• M7: 4,033,308 km (0.118 R)
• M8: 4,656,533 km (0.104 R)
• M9: 5,203,912 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 364.5

Radius: 8.5

Gravity: 5.04 G

Time & Orbit

Eccentricity (e): 0.056

Orbit Range: 1.1 AU - 1.22 AU

Year: 847 Days

Day: 6.1 Hours

Environment

Temp: -176 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 30,358,041 km

• M1: 110,553 km (0.109 R)
• M2: 439,070 km (0.094 R)
• M3: 2,297,973 km (0.116 R)
• M4: 2,585,799 km (0.061 R)
• M5: 3,831,800 km (0.097 R)
• M6: 5,437,733 km (0.072 R)
• M7: 5,709,702 km (0.08 R)
• M8: 6,048,242 km (0.098 R)
• M9: 6,641,996 km (0.102 R)
• M10: 7,361,412 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 737.9

Radius: 10.9

Gravity: 6.21 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 1.36 AU - 1.54 AU

Year: 1184 Days

Day: 7.9 Hours

Environment

Temp: -191 °C

Axial Tilt: 33.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 30,358,041 km

• M1: 135,536 km (0.109 R)
• M2: 498,161 km (0.115 R)
• M3: 851,960 km (0.085 R)
• M4: 1,398,890 km (0.085 R)
• M5: 1,820,905 km (0.115 R)
• M6: 2,385,787 km (0.086 R)
• M7: 2,742,428 km (0.1 R)
• M8: 3,352,488 km (0.038 R)
• M9: 3,770,315 km (0.097 R)
• M10: 4,310,363 km (0.1 R)
• M11: 5,651,808 km (0.084 R)
• M12: 6,088,185 km (0.052 R)
• M13: 8,904,664 km (0.032 R)
• M14: 10,115,509 km (0.092 R)
• M15: 11,535,941 km (0.095 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 128.2

Radius: 9.3

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.178

Orbit Range: 1.5 AU - 2.16 AU

Year: 1679 Days

Day: 5.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 18 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 30,358,041 km

• M1: 115,938 km (0.113 R)
• M2: 502,798 km (0.098 R)
• M3: 3,436,712 km (0.111 R)
• M4: 4,111,548 km (0.094 R)
• M5: 4,537,752 km (0.1 R)
• M6: 5,027,984 km (0.096 R)
• M7: 5,704,466 km (0.054 R)
• M8: 6,114,663 km (0.066 R)
• M9: 7,328,201 km (0.074 R)
• M10: 7,884,556 km (0.055 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 886.9

Radius: 13.9

Gravity: 4.59 G

Time & Orbit

Eccentricity (e): 0.188

Orbit Range: 2.14 AU - 3.14 AU

Year: 2909 Days

Day: 13.2 Hours

Environment

Temp: -200 °C

Axial Tilt: 6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 30,358,041 km

• M1: 172,935 km (0.093 R)
• M2: 656,735 km (0.047 R)
• M3: 1,132,306 km (0.102 R)
• M4: 1,565,243 km (0.101 R)
• M5: 2,098,858 km (0.095 R)
• M6: 2,643,544 km (0.087 R)
• M7: 3,429,531 km (0.079 R)
• M8: 4,753,921 km (0.066 R)
• M9: 5,468,251 km (0.103 R)
• M10: 6,196,793 km (0.099 R)
• M11: 6,777,532 km (0.044 R)
• M12: 9,472,986 km (0.113 R)
• M13: 10,245,360 km (0.115 R)
• M14: 11,059,471 km (0.037 R)
• M15: 14,652,962 km (0.119 R)
• M16: 15,846,005 km (0.092 R)
• M17: 18,721,575 km (0.114 R)
• M18: 19,691,269 km (0.09 R)
• M19: 20,314,194 km (0.096 R)
• M20: 20,950,135 km (0.094 R)
• M21: 22,598,404 km (0.074 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 573.7

Radius: 14.4

Gravity: 2.77 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 3.23 AU - 4.85 AU

Year: 5508 Days

Day: 5.4 Hours

Environment

Temp: -216 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 30,358,041 km

• M1: 179,966 km (0.038 R)
• M2: 703,409 km (0.119 R)
• M3: 1,167,911 km (0.096 R)
• M4: 1,809,087 km (0.084 R)
• M5: 2,351,679 km (0.073 R)
• M6: 2,929,126 km (0.044 R)
• M7: 4,042,733 km (0.117 R)
• M8: 6,190,061 km (0.117 R)
• M9: 7,761,287 km (0.1 R)
• M10: 8,466,940 km (0.113 R)
• M11: 11,632,132 km (0.106 R)
• M12: 12,162,157 km (0.105 R)
• M13: 14,064,444 km (0.115 R)
• M14: 15,285,611 km (0.085 R)
• M15: 16,757,953 km (0.099 R)
• M16: 18,066,336 km (0.07 R)
• M17: 19,374,570 km (0.09 R)
• M18: 23,602,505 km (0.103 R)
• M19: 25,728,291 km (0.111 R)
• M20: 27,130,621 km (0.091 R)
• M21: 28,236,897 km (0.107 R)
• M22: 29,461,655 km (0.111 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 451 - 20,155 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit