🌌 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 - Terrestrial

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.86

Radius: 1.28

Gravity: 1.14 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 0.55 AU - 0.55 AU

Year: 263 Days

Day: 28 Hours

Environment

Temp: -123 °C

Axial Tilt: 1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 698.4

Radius: 12.1

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 0.7 AU - 0.72 AU

Year: 386 Days

Day: 9 Hours

Environment

Temp: -132 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 69,071,661 km

• M1: 150,495 km (0.071 R)
• M2: 597,943 km (0.091 R)
• M3: 1,037,760 km (0.05 R)
• M4: 1,836,613 km (0.103 R)
• M5: 2,504,418 km (0.083 R)
• M6: 3,053,293 km (0.076 R)
• M7: 3,455,262 km (0.104 R)
• M8: 3,879,970 km (0.084 R)
• M9: 4,298,844 km (0.077 R)
• M10: 4,719,065 km (0.105 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 653.9

Radius: 10.4

Gravity: 6.05 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.94 AU - 2.06 AU

Year: 1826 Days

Day: 11.1 Hours

Environment

Temp: -194 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 69,071,661 km

• M1: 130,001 km (0.084 R)
• M2: 467,194 km (0.09 R)
• M3: 820,395 km (0.114 R)
• M4: 1,221,616 km (0.037 R)
• M5: 1,774,380 km (0.107 R)
• M6: 2,384,590 km (0.061 R)
• M7: 3,052,993 km (0.118 R)
• M8: 3,399,163 km (0.12 R)
• M9: 5,034,567 km (0.076 R)
• M10: 5,588,976 km (0.04 R)
• M11: 6,715,448 km (0.096 R)
• M12: 7,471,516 km (0.108 R)
• M13: 8,223,545 km (0.048 R)
• M14: 8,648,851 km (0.101 R)
• M15: 11,183,338 km (0.103 R)
• M16: 12,128,199 km (0.042 R)
• M17: 12,600,180 km (0.056 R)
• M18: 13,876,549 km (0.088 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 651.5

Radius: 9.6

Gravity: 7.07 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 2.69 AU - 3.27 AU

Year: 3322 Days

Day: 9.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 69,071,661 km

• M1: 121,324 km (0.111 R)
• M2: 466,596 km (0.055 R)
• M3: 1,168,659 km (0.091 R)
• M4: 1,569,431 km (0.077 R)
• M5: 1,894,956 km (0.102 R)
• M6: 2,716,847 km (0.089 R)
• M7: 3,901,961 km (0.117 R)
• M8: 4,262,343 km (0.084 R)
• M9: 5,074,809 km (0.111 R)
• M10: 5,479,172 km (0.054 R)
• M11: 5,932,154 km (0.049 R)
• M12: 6,238,530 km (0.099 R)
• M13: 7,767,121 km (0.058 R)
• M14: 9,493,481 km (0.083 R)
• M15: 10,628,181 km (0.054 R)
• M16: 15,866,799 km (0.097 R)
• M17: 17,517,312 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 479.9

Radius: 10.8

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 3.66 AU - 4.84 AU

Year: 5657 Days

Day: 8.3 Hours

Environment

Temp: -222 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 69,071,661 km

• M1: 134,339 km (0.116 R)
• M2: 515,365 km (0.115 R)
• M3: 989,440 km (0.106 R)
• M4: 4,070,408 km (0.07 R)
• M5: 4,749,284 km (0.041 R)
• M6: 7,278,984 km (0.029 R)
• M7: 8,205,144 km (0.094 R)
• M8: 9,208,048 km (0.112 R)
• M9: 11,225,824 km (0.114 R)
• M10: 12,908,501 km (0.078 R)
• M11: 16,350,898 km (0.117 R)
• M12: 22,704,768 km (0.112 R)
• M13: 26,425,117 km (0.091 R)
• M14: 27,498,632 km (0.069 R)
• M15: 28,946,141 km (0.096 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 174.9

Radius: 9.8

Gravity: 1.82 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 5 AU - 6.11 AU

Year: 8442 Days

Day: 6.1 Hours

Environment

Temp: -212 °C

Axial Tilt: 20 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 69,071,661 km

• M1: 122,521 km (0.074 R)
• M2: 519,553 km (0.108 R)
• M3: 881,580 km (0.114 R)
• M4: 1,251,685 km (0.119 R)
• M5: 1,559,259 km (0.071 R)
• M6: 1,865,485 km (0.069 R)
• M7: 2,212,403 km (0.063 R)
• M8: 3,038,183 km (0.076 R)
• M9: 3,687,737 km (0.075 R)
• M10: 4,379,777 km (0.1 R)
• M11: 4,921,770 km (0.075 R)
• M12: 6,442,432 km (0.076 R)
• M13: 7,860,620 km (0.032 R)
• M14: 8,291,163 km (0.103 R)
• M15: 10,469,158 km (0.106 R)
• M16: 13,102,679 km (0.108 R)
• M17: 14,227,954 km (0.101 R)
• M18: 15,360,859 km (0.104 R)
• M19: 21,662,370 km (0.06 R)
• M20: 22,154,098 km (0.099 R)
• M21: 23,379,155 km (0.049 R)
• M22: 26,919,838 km (0.034 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 486.8

Radius: 14.4

Gravity: 2.35 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 4.3 AU - 7.02 AU

Year: 8694 Days

Day: 10.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 69,071,661 km

• M1: 181,612 km (0.109 R)
• M2: 701,913 km (0.045 R)
• M3: 1,290,431 km (0.112 R)
• M4: 1,771,837 km (0.115 R)
• M5: 2,624,395 km (0.109 R)
• M6: 3,073,189 km (0.073 R)
• M7: 3,620,119 km (0.063 R)
• M8: 5,507,894 km (0.08 R)
• M9: 6,085,193 km (0.113 R)
• M10: 6,773,941 km (0.084 R)
• M11: 7,825,315 km (0.087 R)
• M12: 14,119,945 km (0.048 R)
• M13: 15,082,457 km (0.049 R)
• M14: 19,229,759 km (0.039 R)
• M15: 23,747,465 km (0.119 R)
• M16: 26,074,011 km (0.11 R)
• M17: 27,064,050 km (0.106 R)
• M18: 28,266,218 km (0.1 R)
• M19: 29,503,842 km (0.113 R)
• M20: 32,189,273 km (0.107 R)
• M21: 33,224,042 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.78 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 726.4

Radius: 5.2

Gravity: 26.86 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 8.18 AU - 9.38 AU

Year: 16798 Days

Day: 18 Hours

Environment

Temp: -223 °C

Axial Tilt: 28.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 69,071,661 km

• M1: 65,673 km (0.099 R)
• M2: 258,056 km (0.104 R)
• M3: 799,451 km (0.03 R)
• M4: 2,061,309 km (0.11 R)
• M5: 2,242,173 km (0.096 R)
• M6: 3,447,932 km (0.055 R)
• M7: 3,821,478 km (0.059 R)
• M8: 4,415,232 km (0.098 R)
• M9: 4,996,868 km (0.113 R)
• M10: 5,942,925 km (0.119 R)
• M11: 6,564,803 km (0.1 R)
• M12: 7,413,622 km (0.066 R)
• M13: 10,631,771 km (0.084 R)
• M14: 11,483,133 km (0.081 R)
• M15: 11,861,615 km (0.033 R)
• M16: 14,237,229 km (0.113 R)
• M17: 15,421,895 km (0.043 R)
• M18: 16,912,039 km (0.081 R)
• M19: 17,237,564 km (0.039 R)
• M20: 17,733,780 km (0.109 R)
• M21: 23,937,454 km (0.057 R)
• M22: 31,446,071 km (0.049 R)
• M23: 35,396,203 km (0.117 R)
• M24: 41,111,589 km (0.116 R)
• M25: 42,893,898 km (0.05 R)
• M26: 49,041,174 km (0.117 R)
• M27: 51,213,933 km (0.033 R)
• M28: 51,383,577 km (0.062 R)
• M29: 53,101,709 km (0.066 R)
• M30: 55,035,561 km (0.05 R)
• M31: 56,470,952 km (0.07 R)
• M32: 56,833,727 km (0.12 R)
• M33: 68,452,395 km (0.069 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: 510 - 16,129 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit