🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 120.7

Radius: 13.8

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 0.47 AU - 0.55 AU

Year: 243 Days

Day: 8.8 Hours

Environment

Temp: -141 °C

Axial Tilt: 28.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 42,186,919 km

• M1: 171,888 km (0.108 R)
• M2: 767,437 km (0.094 R)
• M3: 1,282,203 km (0.09 R)
• M4: 1,714,840 km (0.064 R)
• M5: 2,161,390 km (0.097 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 98.9

Radius: 8.5

Gravity: 1.37 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 0.49 AU - 0.75 AU

Year: 326 Days

Day: 5.5 Hours

Environment

Temp: -156 °C

Axial Tilt: 137.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 42,186,919 km

• M1: 106,065 km (0.111 R)
• M2: 381,026 km (0.092 R)
• M3: 677,529 km (0.101 R)
• M4: 952,490 km (0.103 R)
• M5: 1,340,846 km (0.066 R)
• M6: 1,620,594 km (0.06 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 956.6

Radius: 11.3

Gravity: 7.49 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 0.52 AU - 0.76 AU

Year: 341 Days

Day: 7.5 Hours

Environment

Temp: -161 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 42,186,919 km

• M1: 141,071 km (0.078 R)
• M2: 605,722 km (0.114 R)
• M3: 977,772 km (0.083 R)
• M4: 1,575,116 km (0.101 R)
• M5: 2,404,786 km (0.105 R)
• M6: 2,861,658 km (0.079 R)
• M7: 3,736,207 km (0.115 R)
• M8: 4,256,508 km (0.114 R)
• M9: 4,649,203 km (0.069 R)
• M10: 5,378,941 km (0.103 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 72.5

Radius: 14.3

Gravity: 0.35 G

Time & Orbit

Eccentricity (e): 0.156

Orbit Range: 0.71 AU - 0.97 AU

Year: 513 Days

Day: 12.6 Hours

Environment

Temp: -168 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 42,186,919 km

• M1: 177,872 km (0.107 R)
• M2: 719,117 km (0.072 R)
• M3: 1,208,601 km (0.089 R)
• M4: 1,690,306 km (0.087 R)
• M5: 2,324,153 km (0.094 R)
• M6: 2,865,697 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 544.4

Radius: 14.4

Gravity: 2.63 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 0.79 AU - 1.15 AU

Year: 637 Days

Day: 7 Hours

Environment

Temp: -167 °C

Axial Tilt: 15.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 42,186,919 km

• M1: 179,069 km (0.099 R)
• M2: 771,177 km (0.109 R)
• M3: 1,296,565 km (0.091 R)
• M4: 1,769,144 km (0.099 R)
• M5: 2,283,312 km (0.071 R)
• M6: 3,367,598 km (0.102 R)
• M7: 4,241,399 km (0.092 R)
• M8: 4,709,191 km (0.079 R)
• M9: 5,642,532 km (0.076 R)
• M10: 6,636,461 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 439.1

Radius: 10.4

Gravity: 4.06 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 0.86 AU - 1.36 AU

Year: 780 Days

Day: 14.9 Hours

Environment

Temp: -181 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 42,186,919 km

• M1: 130,001 km (0.114 R)
• M2: 463,903 km (0.097 R)
• M3: 899,083 km (0.102 R)
• M4: 1,290,431 km (0.111 R)
• M5: 1,683,275 km (0.083 R)
• M6: 2,045,900 km (0.057 R)
• M7: 2,430,068 km (0.076 R)
• M8: 3,461,844 km (0.079 R)
• M9: 3,868,900 km (0.12 R)
• M10: 4,277,602 km (0.093 R)
• M11: 4,779,951 km (0.056 R)
• M12: 5,374,004 km (0.068 R)
• M13: 6,327,242 km (0.112 R)
• M14: 7,280,180 km (0.094 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 150.1

Radius: 11.3

Gravity: 1.18 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.99 AU - 1.33 AU

Year: 833 Days

Day: 8.5 Hours

Environment

Temp: -175 °C

Axial Tilt: 19.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 42,186,919 km

• M1: 140,472 km (0.099 R)
• M2: 573,558 km (0.079 R)
• M3: 1,837,062 km (0.112 R)
• M4: 2,256,085 km (0.12 R)
• M5: 3,016,491 km (0.093 R)
• M6: 3,991,720 km (0.115 R)
• M7: 4,573,955 km (0.078 R)
• M8: 5,416,341 km (0.075 R)

Planet 8 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 267.1

Radius: 10.7

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.58 AU - 2.44 AU

Year: 1900 Days

Day: 13.5 Hours

Environment

Temp: -191 °C

Axial Tilt: 95.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 42,186,919 km

• M1: 133,142 km (0.072 R)
• M2: 559,346 km (0.097 R)
• M3: 999,015 km (0.093 R)
• M4: 1,343,838 km (0.054 R)
• M5: 1,760,468 km (0.053 R)
• M6: 2,110,228 km (0.082 R)
• M7: 2,447,272 km (0.118 R)
• M8: 3,260,785 km (0.064 R)
• M9: 3,651,983 km (0.113 R)
• M10: 4,074,448 km (0.075 R)
• M11: 4,529,375 km (0.12 R)
• M12: 6,013,236 km (0.08 R)
• M13: 8,226,237 km (0.081 R)
• M14: 10,511,046 km (0.081 R)

Planet 9 - Ice Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 675.9

Radius: 7.2

Gravity: 13.04 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 4.68 AU - 7.18 AU

Year: 9630 Days

Day: 15.4 Hours

Environment

Temp: -221 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 42,186,919 km

• M1: 89,609 km (0.099 R)
• M2: 330,013 km (0.036 R)
• M3: 597,643 km (0.055 R)
• M4: 944,112 km (0.087 R)
• M5: 1,407,267 km (0.072 R)
• M6: 1,947,465 km (0.119 R)
• M7: 2,404,187 km (0.065 R)
• M8: 3,039,829 km (0.09 R)
• M9: 3,834,044 km (0.04 R)
• M10: 4,819,744 km (0.05 R)
• M11: 5,722,717 km (0.115 R)
• M12: 5,965,065 km (0.099 R)
• M13: 6,214,296 km (0.106 R)
• M14: 7,986,582 km (0.108 R)
• M15: 8,600,531 km (0.092 R)
• M16: 10,323,599 km (0.11 R)
• M17: 11,105,099 km (0.119 R)
• M18: 13,321,092 km (0.032 R)
• M19: 15,214,702 km (0.03 R)
• M20: 17,352,755 km (0.066 R)
• M21: 17,788,533 km (0.058 R)
• M22: 21,625,270 km (0.096 R)
• M23: 26,645,924 km (0.098 R)
• M24: 28,411,478 km (0.042 R)
• M25: 31,310,535 km (0.066 R)
• M26: 33,498,254 km (0.098 R)
• M27: 36,610,339 km (0.104 R)
• M28: 37,447,638 km (0.042 R)
• M29: 40,035,831 km (0.087 R)
• M30: 41,826,218 km (0.066 R)
• M31: 42,741,009 km (0.068 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 84.3

Radius: 5.2

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 8.79 AU - 12.73 AU

Year: 23537 Days

Day: 15.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 42,186,919 km

• M1: 64,626 km (0.091 R)
• M2: 438,322 km (0.081 R)
• M3: 912,248 km (0.107 R)
• M4: 1,091,915 km (0.068 R)
• M5: 2,582,658 km (0.098 R)
• M6: 3,097,125 km (0.114 R)
• M7: 7,304,565 km (0.114 R)
• M8: 15,656,016 km (0.119 R)
• M9: 21,149,698 km (0.081 R)
• M10: 23,120,052 km (0.085 R)
• M11: 24,675,720 km (0.062 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: 519 - 13,685 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit