🌌 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: 520.7

Radius: 12.4

Gravity: 3.39 G

Time & Orbit

Eccentricity (e): 0.01

Orbit Range: 0.68 AU - 0.7 AU

Year: 364 Days

Day: 14.5 Hours

Environment

Temp: -132 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 40,156,432 km

• M1: 154,235 km (0.096 R)
• M2: 911,799 km (0.11 R)
• M3: 1,301,501 km (0.09 R)
• M4: 2,254,290 km (0.107 R)
• M5: 2,883,349 km (0.064 R)
• M6: 3,766,575 km (0.047 R)
• M7: 4,233,470 km (0.029 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 536.1

Radius: 14.7

Gravity: 2.48 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 1.09 AU - 1.13 AU

Year: 744 Days

Day: 8.6 Hours

Environment

Temp: -171 °C

Axial Tilt: 178.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 40,156,432 km

• M1: 182,809 km (0.106 R)
• M2: 1,113,607 km (0.059 R)
• M3: 1,948,512 km (0.1 R)
• M4: 2,799,275 km (0.033 R)
• M5: 3,886,852 km (0.029 R)
• M6: 4,560,192 km (0.076 R)
• M7: 5,119,838 km (0.119 R)
• M8: 5,669,759 km (0.075 R)
• M9: 6,358,059 km (0.028 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 161.6

Radius: 10.9

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.192

Orbit Range: 2.21 AU - 3.25 AU

Year: 2868 Days

Day: 7.1 Hours

Environment

Temp: -199 °C

Axial Tilt: 7.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 40,156,432 km

• M1: 135,536 km (0.116 R)
• M2: 569,070 km (0.063 R)
• M3: 957,426 km (0.109 R)
• M4: 1,501,514 km (0.118 R)
• M5: 2,131,321 km (0.052 R)
• M6: 2,471,058 km (0.111 R)
• M7: 2,861,059 km (0.119 R)
• M8: 3,429,830 km (0.116 R)
• M9: 4,992,380 km (0.055 R)
• M10: 5,405,569 km (0.03 R)
• M11: 6,022,361 km (0.089 R)
• M12: 7,162,746 km (0.058 R)
• M13: 8,528,126 km (0.068 R)
• M14: 10,823,107 km (0.111 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 506.8

Radius: 8.9

Gravity: 6.4 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 2.63 AU - 3.81 AU

Year: 3674 Days

Day: 10.8 Hours

Environment

Temp: -199 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 40,156,432 km

• M1: 111,301 km (0.085 R)
• M2: 1,423,274 km (0.112 R)
• M3: 1,809,237 km (0.113 R)
• M4: 2,713,855 km (0.084 R)
• M5: 3,150,681 km (0.093 R)
• M6: 3,575,539 km (0.106 R)
• M7: 3,852,594 km (0.104 R)
• M8: 4,383,517 km (0.061 R)
• M9: 5,182,669 km (0.117 R)
• M10: 5,512,831 km (0.082 R)
• M11: 5,938,437 km (0.052 R)
• M12: 6,328,738 km (0.05 R)
• M13: 6,676,703 km (0.038 R)
• M14: 7,506,821 km (0.111 R)
• M15: 7,930,333 km (0.066 R)
• M16: 8,789,473 km (0.073 R)
• M17: 9,558,107 km (0.075 R)
• M18: 10,370,723 km (0.06 R)
• M19: 10,896,410 km (0.091 R)
• M20: 11,957,358 km (0.086 R)
• M21: 15,036,082 km (0.028 R)
• M22: 16,241,392 km (0.077 R)
• M23: 17,005,987 km (0.036 R)
• M24: 17,284,688 km (0.079 R)
• M25: 18,962,428 km (0.084 R)
• M26: 19,383,097 km (0.032 R)
• M27: 20,682,654 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 489.4

Radius: 9.9

Gravity: 4.99 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 3.59 AU - 4.85 AU

Year: 5512 Days

Day: 11.4 Hours

Environment

Temp: -212 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 40,156,432 km

• M1: 123,119 km (0.038 R)
• M2: 504,893 km (0.109 R)
• M3: 977,622 km (0.041 R)
• M4: 1,439,132 km (0.047 R)
• M5: 2,000,423 km (0.101 R)
• M6: 2,533,290 km (0.066 R)
• M7: 2,969,967 km (0.115 R)
• M8: 3,415,768 km (0.117 R)
• M9: 4,063,826 km (0.116 R)
• M10: 5,519,413 km (0.097 R)
• M11: 8,000,345 km (0.11 R)
• M12: 8,369,552 km (0.089 R)
• M13: 8,827,621 km (0.097 R)
• M14: 9,302,295 km (0.089 R)
• M15: 9,877,499 km (0.086 R)
• M16: 12,615,289 km (0.108 R)
• M17: 13,371,806 km (0.072 R)
• M18: 14,481,074 km (0.118 R)
• M19: 16,822,131 km (0.066 R)
• M20: 18,751,943 km (0.086 R)
• M21: 19,803,766 km (0.057 R)
• M22: 21,667,008 km (0.077 R)
• M23: 23,644,392 km (0.059 R)
• M24: 24,329,401 km (0.099 R)
• M25: 25,500,453 km (0.105 R)
• M26: 26,708,755 km (0.12 R)
• M27: 27,702,534 km (0.088 R)
• M28: 28,208,474 km (0.071 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 614

Radius: 13.4

Gravity: 3.42 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 5.88 AU - 5.98 AU

Year: 9182 Days

Day: 9.4 Hours

Environment

Temp: -213 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 40,156,432 km

• M1: 171,140 km (0.081 R)
• M2: 760,406 km (0.117 R)
• M3: 3,208,276 km (0.105 R)
• M4: 3,947,738 km (0.116 R)
• M5: 4,399,973 km (0.092 R)
• M6: 5,128,365 km (0.04 R)
• M7: 5,603,188 km (0.068 R)
• M8: 6,211,603 km (0.054 R)
• M9: 7,804,521 km (0.055 R)
• M10: 8,652,442 km (0.056 R)
• M11: 10,382,242 km (0.051 R)
• M12: 11,567,805 km (0.115 R)
• M13: 12,613,644 km (0.074 R)
• M14: 13,661,726 km (0.029 R)
• M15: 18,662,035 km (0.114 R)
• M16: 19,485,571 km (0.1 R)
• M17: 20,255,103 km (0.088 R)
• M18: 23,024,159 km (0.099 R)
• M19: 23,624,197 km (0.12 R)
• M20: 26,876,155 km (0.051 R)
• M21: 33,703,054 km (0.082 R)
• M22: 39,983,472 km (0.103 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 350.6

Radius: 3.6

Gravity: 27.05 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 5.48 AU - 6.96 AU

Year: 9863 Days

Day: 22.2 Hours

Environment

Temp: -231 °C

Axial Tilt: 32 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 40,156,432 km

• M1: 45,029 km (0.11 R)
• M2: 209,138 km (0.07 R)
• M3: 357,539 km (0.07 R)
• M4: 602,879 km (0.117 R)
• M5: 868,864 km (0.059 R)
• M6: 1,121,386 km (0.06 R)
• M7: 1,433,447 km (0.119 R)
• M8: 1,630,318 km (0.03 R)
• M9: 1,874,910 km (0.118 R)
• M10: 2,244,118 km (0.063 R)
• M11: 2,528,354 km (0.035 R)
• M12: 2,717,894 km (0.094 R)
• M13: 3,125,399 km (0.119 R)
• M14: 4,111,548 km (0.05 R)
• M15: 4,481,952 km (0.112 R)
• M16: 4,647,258 km (0.093 R)
• M17: 5,319,102 km (0.029 R)
• M18: 5,694,144 km (0.08 R)
• M19: 8,573,454 km (0.049 R)
• M20: 10,562,358 km (0.11 R)
• M21: 10,708,216 km (0.101 R)
• M22: 16,246,478 km (0.115 R)
• M23: 18,682,979 km (0.09 R)
• M24: 19,039,620 km (0.076 R)
• M25: 20,662,757 km (0.086 R)
• M26: 21,507,835 km (0.081 R)
• M27: 25,379,129 km (0.092 R)
• M28: 25,992,630 km (0.052 R)
• M29: 33,303,777 km (0.101 R)
• M30: 34,784,946 km (0.102 R)
• M31: 35,107,927 km (0.109 R)
• M32: 35,324,396 km (0.087 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 947.3

Radius: 6.5

Gravity: 22.42 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 7.63 AU - 8.01 AU

Year: 13904 Days

Day: 19.9 Hours

Environment

Temp: -227 °C

Axial Tilt: 35.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 40,156,432 km

• M1: 80,783 km (0.069 R)
• M2: 390,301 km (0.071 R)
• M3: 817,702 km (0.1 R)
• M4: 1,345,633 km (0.104 R)
• M5: 1,839,156 km (0.117 R)
• M6: 2,715,501 km (0.077 R)
• M7: 3,129,587 km (0.076 R)
• M8: 3,872,640 km (0.091 R)
• M9: 4,829,917 km (0.086 R)
• M10: 5,550,231 km (0.086 R)
• M11: 6,176,148 km (0.115 R)
• M12: 8,287,273 km (0.097 R)
• M13: 10,312,828 km (0.067 R)
• M14: 11,075,478 km (0.115 R)
• M15: 12,065,068 km (0.071 R)
• M16: 12,647,004 km (0.071 R)
• M17: 12,978,214 km (0.111 R)
• M18: 15,916,765 km (0.088 R)
• M19: 16,147,744 km (0.098 R)
• M20: 17,663,021 km (0.054 R)
• M21: 18,582,300 km (0.072 R)
• M22: 26,142,378 km (0.081 R)
• M23: 29,019,294 km (0.088 R)
• M24: 32,469,320 km (0.072 R)
• M25: 33,215,814 km (0.09 R)
• M26: 33,719,659 km (0.069 R)
• M27: 41,175,468 km (0.115 R)
• M28: 49,331,543 km (0.113 R)
• M29: 55,977,130 km (0.116 R)
• M30: 60,911,765 km (0.112 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.38 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 169.3

Radius: 6.9

Gravity: 3.56 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 6.37 AU - 10.39 AU

Year: 15424 Days

Day: 18.3 Hours

Environment

Temp: -235 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 40,156,432 km

• M1: 91,404 km (0.093 R)
• M2: 467,643 km (0.072 R)
• M3: 1,423,573 km (0.088 R)
• M4: 1,731,296 km (0.112 R)
• M5: 2,099,157 km (0.088 R)
• M6: 2,372,473 km (0.108 R)
• M7: 2,631,127 km (0.092 R)
• M8: 3,569,555 km (0.063 R)
• M9: 5,246,397 km (0.104 R)
• M10: 5,785,249 km (0.091 R)
• M11: 8,357,435 km (0.089 R)
• M12: 8,784,387 km (0.085 R)
• M13: 10,639,401 km (0.103 R)
• M14: 11,710,970 km (0.118 R)
• M15: 14,427,518 km (0.11 R)
• M16: 15,419,053 km (0.114 R)
• M17: 17,194,330 km (0.102 R)
• M18: 19,321,612 km (0.108 R)
• M19: 23,330,536 km (0.114 R)
• M20: 23,835,878 km (0.094 R)
• M21: 25,840,639 km (0.05 R)
• M22: 33,050,209 km (0.106 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: 314 - 13,021 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit