🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 989.7

Radius: 11.8

Gravity: 7.11 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 0.45 AU - 0.65 AU

Year: 287 Days

Day: 10.3 Hours

Environment

Temp: -138 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 37,947,360 km

• M1: 146,756 km (0.097 R)
• M2: 575,353 km (0.07 R)
• M3: 953,537 km (0.066 R)
• M4: 1,420,881 km (0.095 R)
• M5: 2,362,300 km (0.047 R)
• M6: 2,795,685 km (0.114 R)
• M7: 3,563,571 km (0.115 R)
• M8: 4,413,287 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 311

Radius: 12.1

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.57 AU - 0.59 AU

Year: 310 Days

Day: 6.8 Hours

Environment

Temp: -141 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 37,947,360 km

• M1: 150,495 km (0.094 R)
• M2: 555,906 km (0.084 R)
• M3: 950,246 km (0.089 R)
• M4: 1,485,507 km (0.119 R)
• M5: 1,910,066 km (0.111 R)
• M6: 3,354,433 km (0.078 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 689.1

Radius: 13.1

Gravity: 4.02 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 0.75 AU - 0.77 AU

Year: 466 Days

Day: 9.7 Hours

Environment

Temp: -166 °C

Axial Tilt: 43 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 37,947,360 km

• M1: 163,062 km (0.093 R)
• M2: 617,839 km (0.108 R)
• M3: 1,079,648 km (0.075 R)
• M4: 1,523,654 km (0.115 R)
• M5: 1,983,817 km (0.089 R)
• M6: 2,489,159 km (0.103 R)
• M7: 3,047,009 km (0.041 R)
• M8: 4,027,175 km (0.042 R)
• M9: 4,650,399 km (0.034 R)
• M10: 5,435,938 km (0.116 R)
• M11: 6,198,887 km (0.113 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 954

Radius: 12.3

Gravity: 6.31 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 1.24 AU - 1.68 AU

Year: 1240 Days

Day: 12 Hours

Environment

Temp: -182 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 37,947,360 km

• M1: 153,039 km (0.065 R)
• M2: 600,486 km (0.09 R)
• M3: 1,046,587 km (0.095 R)
• M4: 1,501,663 km (0.053 R)
• M5: 2,003,115 km (0.075 R)
• M6: 2,602,554 km (0.094 R)
• M7: 3,365,354 km (0.106 R)
• M8: 4,022,537 km (0.084 R)
• M9: 4,419,420 km (0.061 R)
• M10: 5,167,260 km (0.116 R)
• M11: 5,593,764 km (0.107 R)
• M12: 7,407,937 km (0.055 R)
• M13: 8,319,586 km (0.073 R)
• M14: 11,505,722 km (0.06 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 988.6

Radius: 8.3

Gravity: 14.35 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 1.36 AU - 1.74 AU

Year: 1356 Days

Day: 10.1 Hours

Environment

Temp: -199 °C

Axial Tilt: 14.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 37,947,360 km

• M1: 103,223 km (0.064 R)
• M2: 431,889 km (0.038 R)
• M3: 1,125,275 km (0.082 R)
• M4: 1,712,896 km (0.119 R)
• M5: 2,265,061 km (0.114 R)
• M6: 3,341,568 km (0.102 R)
• M7: 3,687,139 km (0.066 R)
• M8: 3,984,090 km (0.083 R)
• M9: 4,392,343 km (0.074 R)
• M10: 4,706,499 km (0.07 R)
• M11: 4,972,783 km (0.102 R)
• M12: 5,249,240 km (0.112 R)
• M13: 5,856,308 km (0.1 R)
• M14: 6,409,521 km (0.07 R)
• M15: 7,592,391 km (0.047 R)
• M16: 8,883,720 km (0.116 R)
• M17: 9,259,959 km (0.092 R)
• M18: 14,046,342 km (0.082 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 478.3

Radius: 13.3

Gravity: 2.7 G

Time & Orbit

Eccentricity (e): 0.073

Orbit Range: 3.09 AU - 3.57 AU

Year: 4271 Days

Day: 11.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 37,947,360 km

• M1: 165,455 km (0.062 R)
• M2: 636,838 km (0.113 R)
• M3: 1,057,956 km (0.099 R)
• M4: 1,744,910 km (0.105 R)
• M5: 2,276,132 km (0.064 R)
• M6: 2,847,745 km (0.118 R)
• M7: 3,305,664 km (0.078 R)
• M8: 4,128,901 km (0.108 R)
• M9: 8,920,970 km (0.05 R)
• M10: 11,358,518 km (0.105 R)
• M11: 11,885,850 km (0.096 R)
• M12: 16,047,663 km (0.059 R)
• M13: 16,825,123 km (0.084 R)
• M14: 20,897,476 km (0.117 R)
• M15: 21,757,514 km (0.088 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 472.5

Radius: 12.4

Gravity: 3.07 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 3.1 AU - 5.1 AU

Year: 5836 Days

Day: 9 Hours

Environment

Temp: -227 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 37,947,360 km

• M1: 155,283 km (0.076 R)
• M2: 586,872 km (0.1 R)
• M3: 1,109,268 km (0.06 R)
• M4: 1,632,412 km (0.111 R)
• M5: 2,123,093 km (0.097 R)
• M6: 2,526,110 km (0.089 R)
• M7: 3,017,987 km (0.117 R)
• M8: 3,853,940 km (0.079 R)
• M9: 4,761,251 km (0.086 R)
• M10: 5,574,166 km (0.065 R)
• M11: 7,830,701 km (0.086 R)
• M12: 8,535,905 km (0.038 R)
• M13: 9,002,949 km (0.056 R)
• M14: 9,819,305 km (0.099 R)
• M15: 13,325,879 km (0.108 R)
• M16: 16,614,489 km (0.083 R)
• M17: 17,968,499 km (0.051 R)
• M18: 26,510,687 km (0.101 R)
• M19: 28,442,594 km (0.118 R)
• M20: 29,398,974 km (0.096 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 835.7

Radius: 9.4

Gravity: 9.46 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 3.44 AU - 5.26 AU

Year: 6377 Days

Day: 14.7 Hours

Environment

Temp: -221 °C

Axial Tilt: 13.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 37,947,360 km

• M1: 140,173 km (0.08 R)
• M2: 553,512 km (0.097 R)
• M3: 929,751 km (0.09 R)
• M4: 1,464,114 km (0.077 R)
• M5: 2,466,121 km (0.099 R)
• M6: 3,518,392 km (0.091 R)
• M7: 4,094,943 km (0.111 R)
• M8: 4,874,198 km (0.072 R)
• M9: 5,224,257 km (0.1 R)
• M10: 6,903,942 km (0.044 R)
• M11: 7,346,452 km (0.111 R)
• M12: 8,452,728 km (0.104 R)
• M13: 9,264,447 km (0.097 R)
• M14: 9,621,387 km (0.108 R)
• M15: 9,941,227 km (0.11 R)
• M16: 11,597,126 km (0.101 R)
• M17: 14,178,288 km (0.066 R)
• M18: 14,833,526 km (0.062 R)
• M19: 15,261,077 km (0.101 R)
• M20: 15,949,227 km (0.096 R)
• M21: 17,455,080 km (0.112 R)
• M22: 21,669,850 km (0.077 R)
• M23: 23,267,705 km (0.115 R)
• M24: 28,064,710 km (0.073 R)
• M25: 29,097,384 km (0.087 R)
• M26: 31,538,223 km (0.11 R)
• M27: 32,449,424 km (0.11 R)
• M28: 34,965,062 km (0.037 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 184 - 16,026 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit