🌌 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: 0.56 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.78

Radius: 1.7

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 0.52 AU - 0.6 AU

Year: 275 Days

Day: 37.9 Hours

Environment

Temp: -117 °C

Axial Tilt: 1.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 994.9

Radius: 13.3

Gravity: 5.62 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.81 AU - 0.87 AU

Year: 505 Days

Day: 6.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 16.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 92,534,216 km

• M1: 165,455 km (0.11 R)
• M2: 661,522 km (0.1 R)
• M3: 1,082,789 km (0.055 R)
• M4: 1,624,633 km (0.114 R)
• M5: 2,240,677 km (0.103 R)
• M6: 2,917,308 km (0.089 R)
• M7: 3,850,350 km (0.079 R)
• M8: 4,266,830 km (0.113 R)
• M9: 4,973,531 km (0.103 R)
• M10: 5,416,490 km (0.113 R)
• M11: 6,246,160 km (0.119 R)
• M12: 6,763,021 km (0.103 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 729.5

Radius: 15

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.74 AU - 0.94 AU

Year: 505 Days

Day: 6.3 Hours

Environment

Temp: -141 °C

Axial Tilt: 128.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 92,534,216 km

• M1: 186,549 km (0.116 R)
• M2: 657,931 km (0.079 R)
• M3: 1,127,370 km (0.118 R)
• M4: 1,655,001 km (0.086 R)
• M5: 2,294,532 km (0.116 R)
• M6: 2,864,051 km (0.107 R)
• M7: 3,404,249 km (0.077 R)
• M8: 4,379,777 km (0.079 R)
• M9: 5,483,809 km (0.109 R)
• M10: 6,083,697 km (0.068 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 880.6

Radius: 13

Gravity: 5.21 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 1.37 AU - 1.83 AU

Year: 1328 Days

Day: 5.7 Hours

Environment

Temp: -183 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 92,534,216 km

• M1: 161,715 km (0.05 R)
• M2: 771,476 km (0.098 R)
• M3: 1,449,304 km (0.104 R)
• M4: 1,908,270 km (0.11 R)
• M5: 2,415,856 km (0.111 R)
• M6: 2,914,167 km (0.12 R)
• M7: 3,642,259 km (0.041 R)
• M8: 4,375,738 km (0.099 R)
• M9: 5,205,856 km (0.108 R)
• M10: 5,703,419 km (0.082 R)
• M11: 6,209,060 km (0.079 R)
• M12: 6,972,308 km (0.04 R)
• M13: 7,852,691 km (0.097 R)
• M14: 8,450,634 km (0.113 R)
• M15: 9,997,327 km (0.098 R)
• M16: 10,428,767 km (0.072 R)
• M17: 10,941,887 km (0.052 R)
• M18: 12,355,887 km (0.087 R)
• M19: 12,969,986 km (0.115 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 953.7

Radius: 10.2

Gravity: 9.17 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 2 AU - 2.18 AU

Year: 1982 Days

Day: 11.6 Hours

Environment

Temp: -198 °C

Axial Tilt: 85.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 92,534,216 km

• M1: 126,859 km (0.114 R)
• M2: 515,065 km (0.07 R)
• M3: 849,566 km (0.061 R)
• M4: 1,215,184 km (0.115 R)
• M5: 1,806,544 km (0.079 R)
• M6: 2,175,452 km (0.097 R)
• M7: 2,711,611 km (0.096 R)
• M8: 3,299,979 km (0.088 R)
• M9: 4,147,900 km (0.048 R)
• M10: 4,538,051 km (0.075 R)
• M11: 5,065,982 km (0.081 R)
• M12: 6,324,400 km (0.074 R)
• M13: 6,731,306 km (0.071 R)
• M14: 7,508,168 km (0.107 R)
• M15: 8,121,220 km (0.096 R)
• M16: 8,504,938 km (0.1 R)
• M17: 9,001,453 km (0.104 R)
• M18: 12,189,833 km (0.074 R)
• M19: 14,896,058 km (0.116 R)
• M20: 15,326,601 km (0.06 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 810.7

Radius: 13.5

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 2.11 AU - 2.41 AU

Year: 2229 Days

Day: 6.4 Hours

Environment

Temp: -188 °C

Axial Tilt: 34.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 92,534,216 km

• M1: 168,447 km (0.073 R)
• M2: 637,287 km (0.107 R)
• M3: 1,118,693 km (0.049 R)
• M4: 1,709,305 km (0.073 R)
• M5: 2,223,324 km (0.113 R)
• M6: 2,765,017 km (0.078 R)
• M7: 3,224,133 km (0.105 R)
• M8: 3,660,959 km (0.109 R)
• M9: 4,217,613 km (0.108 R)
• M10: 5,009,733 km (0.119 R)
• M11: 5,723,016 km (0.114 R)
• M12: 7,928,986 km (0.111 R)
• M13: 9,309,176 km (0.103 R)
• M14: 10,166,671 km (0.09 R)
• M15: 10,959,690 km (0.112 R)
• M16: 13,321,092 km (0.091 R)
• M17: 15,072,584 km (0.078 R)
• M18: 17,025,285 km (0.099 R)
• M19: 18,527,696 km (0.054 R)

Asteroid Belt

Center: 3.05 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 3.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 981.8

Radius: 13.9

Gravity: 5.08 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 2.89 AU - 4.77 AU

Year: 4917 Days

Day: 5.8 Hours

Environment

Temp: -213 °C

Axial Tilt: 36.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 92,534,216 km

• M1: 173,234 km (0.118 R)
• M2: 832,213 km (0.081 R)
• M3: 1,420,881 km (0.103 R)
• M4: 4,721,309 km (0.037 R)
• M5: 5,745,605 km (0.089 R)
• M6: 7,335,681 km (0.086 R)
• M7: 9,499,465 km (0.117 R)
• M8: 10,844,798 km (0.11 R)
• M9: 13,364,326 km (0.089 R)
• M10: 15,051,191 km (0.041 R)
• M11: 16,813,005 km (0.109 R)
• M12: 18,912,612 km (0.086 R)
• M13: 20,025,470 km (0.104 R)
• M14: 22,305,641 km (0.117 R)
• M15: 29,899,827 km (0.098 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 287.7

Radius: 7.4

Gravity: 5.25 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 5.86 AU - 6.46 AU

Year: 10030 Days

Day: 15.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 92,534,216 km

• M1: 92,152 km (0.117 R)
• M2: 334,202 km (0.089 R)
• M3: 1,013,077 km (0.096 R)
• M4: 2,076,119 km (0.104 R)
• M5: 2,319,814 km (0.053 R)
• M6: 2,924,489 km (0.094 R)
• M7: 3,426,988 km (0.067 R)
• M8: 4,549,570 km (0.112 R)
• M9: 6,093,271 km (0.075 R)
• M10: 9,364,827 km (0.116 R)
• M11: 9,763,355 km (0.098 R)
• M12: 10,452,852 km (0.107 R)
• M13: 12,292,008 km (0.119 R)
• M14: 12,877,834 km (0.099 R)
• M15: 13,482,209 km (0.098 R)
• M16: 15,902,553 km (0.119 R)
• M17: 16,153,129 km (0.055 R)
• M18: 20,828,063 km (0.116 R)
• M19: 22,201,521 km (0.107 R)
• M20: 23,230,305 km (0.117 R)
• M21: 23,553,287 km (0.111 R)
• M22: 24,623,211 km (0.046 R)
• M23: 27,394,512 km (0.081 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 979.3

Radius: 4.8

Gravity: 42.5 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 7.14 AU - 11.24 AU

Year: 18276 Days

Day: 19.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 32.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 92,534,216 km

• M1: 72,405 km (0.08 R)
• M2: 236,963 km (0.048 R)
• M3: 492,027 km (0.047 R)
• M4: 895,343 km (0.116 R)
• M5: 2,854,178 km (0.084 R)
• M6: 3,011,256 km (0.056 R)
• M7: 3,668,140 km (0.081 R)
• M8: 4,014,160 km (0.098 R)
• M9: 5,068,376 km (0.096 R)
• M10: 5,497,572 km (0.033 R)
• M11: 6,207,713 km (0.081 R)
• M12: 6,383,491 km (0.113 R)
• M13: 7,263,575 km (0.092 R)
• M14: 7,757,996 km (0.064 R)
• M15: 8,541,141 km (0.073 R)
• M16: 9,375,747 km (0.102 R)
• M17: 9,842,343 km (0.058 R)
• M18: 11,532,051 km (0.08 R)
• M19: 11,797,886 km (0.069 R)
• M20: 13,333,209 km (0.085 R)
• M21: 14,840,109 km (0.089 R)
• M22: 15,715,556 km (0.089 R)
• M23: 17,221,557 km (0.09 R)
• M24: 22,621,592 km (0.107 R)
• M25: 25,984,402 km (0.074 R)
• M26: 28,202,041 km (0.104 R)
• M27: 30,039,552 km (0.085 R)
• M28: 31,051,432 km (0.069 R)
• M29: 32,611,588 km (0.104 R)
• M30: 34,359,789 km (0.109 R)
• M31: 35,606,088 km (0.113 R)
• M32: 37,025,922 km (0.088 R)
• M33: 39,225,758 km (0.07 R)
• M34: 39,826,693 km (0.111 R)
• M35: 43,883,787 km (0.103 R)
• M36: 49,593,190 km (0.113 R)
• M37: 67,266,234 km (0.078 R)
• M38: 68,559,956 km (0.116 R)
• M39: 73,901,049 km (0.111 R)

Planet 10 - Ice Giant

Semi-Major Axis: 11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 860.4

Radius: 3.1

Gravity: 89.53 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 9.59 AU - 12.41 AU

Year: 23933 Days

Day: 19.4 Hours

Environment

Temp: -239 °C

Axial Tilt: 11.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 92,534,216 km

• M1: 38,895 km (0.119 R)
• M2: 683,064 km (0.101 R)
• M3: 1,164,021 km (0.101 R)
• M4: 1,333,216 km (0.083 R)
• M5: 2,157,351 km (0.081 R)
• M6: 2,341,356 km (0.083 R)
• M7: 3,272,753 km (0.09 R)
• M8: 4,318,143 km (0.061 R)
• M9: 8,134,534 km (0.06 R)
• M10: 9,703,217 km (0.084 R)
• M11: 13,422,968 km (0.099 R)
• M12: 14,684,377 km (0.116 R)
• M13: 18,367,028 km (0.114 R)
• M14: 20,930,238 km (0.111 R)
• M15: 21,764,396 km (0.065 R)
• M16: 21,976,376 km (0.107 R)
• M17: 22,189,703 km (0.088 R)
• M18: 30,292,222 km (0.1 R)
• M19: 31,089,579 km (0.113 R)
• M20: 37,672,185 km (0.074 R)
• M21: 38,904,273 km (0.037 R)
• M22: 39,845,842 km (0.098 R)
• M23: 43,260,712 km (0.115 R)
• M24: 45,297,038 km (0.045 R)
• M25: 50,480,006 km (0.07 R)
• M26: 58,666,002 km (0.075 R)
• M27: 61,791,251 km (0.072 R)
• M28: 62,216,109 km (0.094 R)
• M29: 65,685,732 km (0.105 R)
• M30: 70,201,194 km (0.092 R)
• M31: 79,592,650 km (0.077 R)
• M32: 83,676,073 km (0.075 R)
• M33: 86,828,549 km (0.098 R)
• M34: 88,703,459 km (0.105 R)
• M35: 88,973,633 km (0.042 R)
• M36: 90,879,210 km (0.115 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 220 - 15,504 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit