🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.5 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 129.9

Radius: 14.8

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.112

Orbit Range: 0.89 AU - 1.11 AU

Year: 678 Days

Day: 12.4 Hours

Environment

Temp: -171 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 72,964,470 km

• M1: 184,005 km (0.118 R)
• M2: 658,231 km (0.116 R)
• M3: 1,172,099 km (0.082 R)
• M4: 1,678,937 km (0.109 R)
• M5: 2,230,355 km (0.047 R)
• M6: 2,752,451 km (0.036 R)
• M7: 3,304,019 km (0.026 R)
• M8: 3,882,065 km (0.112 R)
• M9: 4,398,028 km (0.055 R)

Planet 2 - Gas Giant

Semi-Major Axis: 2.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 504.8

Radius: 10.7

Gravity: 4.41 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 1.91 AU - 2.59 AU

Year: 2289 Days

Day: 14.7 Hours

Environment

Temp: -197 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 72,964,470 km

• M1: 133,142 km (0.061 R)
• M2: 497,263 km (0.105 R)
• M3: 1,306,588 km (0.108 R)
• M4: 2,202,529 km (0.098 R)
• M5: 2,649,229 km (0.077 R)
• M6: 3,399,761 km (0.057 R)
• M7: 5,230,241 km (0.066 R)
• M8: 5,715,686 km (0.048 R)
• M9: 7,935,718 km (0.083 R)
• M10: 8,453,028 km (0.039 R)
• M11: 8,895,688 km (0.051 R)
• M12: 9,287,634 km (0.079 R)
• M13: 9,759,316 km (0.094 R)
• M14: 11,308,701 km (0.107 R)
• M15: 13,650,357 km (0.07 R)
• M16: 14,798,221 km (0.032 R)
• M17: 15,489,064 km (0.12 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 467.9

Radius: 14

Gravity: 2.39 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 2.45 AU - 2.59 AU

Year: 2713 Days

Day: 8.1 Hours

Environment

Temp: -202 °C

Axial Tilt: 3.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 72,964,470 km

• M1: 174,132 km (0.114 R)
• M2: 912,397 km (0.114 R)
• M3: 1,417,141 km (0.114 R)
• M4: 1,924,128 km (0.111 R)
• M5: 2,484,222 km (0.097 R)
• M6: 4,430,491 km (0.112 R)
• M7: 4,896,787 km (0.037 R)
• M8: 6,105,837 km (0.067 R)
• M9: 7,955,615 km (0.067 R)
• M10: 8,455,421 km (0.093 R)
• M11: 9,244,700 km (0.079 R)
• M12: 11,316,630 km (0.076 R)
• M13: 12,399,420 km (0.107 R)
• M14: 12,987,489 km (0.103 R)
• M15: 14,174,249 km (0.099 R)
• M16: 14,724,320 km (0.108 R)
• M17: 17,482,905 km (0.036 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 49.5

Radius: 11.4

Gravity: 0.38 G

Time & Orbit

Eccentricity (e): 0.168

Orbit Range: 2.76 AU - 3.88 AU

Year: 4103 Days

Day: 5.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 72,964,470 km

• M1: 151,393 km (0.095 R)
• M2: 620,382 km (0.038 R)
• M3: 1,671,906 km (0.04 R)
• M4: 2,083,749 km (0.115 R)
• M5: 3,858,428 km (0.119 R)
• M6: 5,365,776 km (0.085 R)
• M7: 6,848,441 km (0.103 R)
• M8: 8,396,480 km (0.11 R)
• M9: 8,754,467 km (0.096 R)
• M10: 10,764,913 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 838.6

Radius: 14.1

Gravity: 4.22 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 5.37 AU - 5.39 AU

Year: 8464 Days

Day: 9.3 Hours

Environment

Temp: -219 °C

Axial Tilt: 48.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 72,964,470 km

• M1: 177,423 km (0.1 R)
• M2: 889,509 km (0.111 R)
• M3: 1,384,827 km (0.11 R)
• M4: 2,220,182 km (0.09 R)
• M5: 3,465,734 km (0.11 R)
• M6: 4,711,735 km (0.092 R)
• M7: 5,991,993 km (0.089 R)
• M8: 8,202,002 km (0.057 R)
• M9: 9,139,233 km (0.087 R)
• M10: 12,960,412 km (0.069 R)
• M11: 14,294,525 km (0.054 R)
• M12: 15,320,916 km (0.07 R)
• M13: 16,258,895 km (0.107 R)
• M14: 16,952,132 km (0.114 R)
• M15: 18,323,346 km (0.098 R)
• M16: 19,845,504 km (0.115 R)
• M17: 20,318,233 km (0.09 R)
• M18: 21,864,926 km (0.082 R)
• M19: 22,624,434 km (0.096 R)
• M20: 23,929,376 km (0.088 R)
• M21: 25,746,542 km (0.119 R)
• M22: 26,975,937 km (0.067 R)
• M23: 28,542,526 km (0.111 R)
• M24: 29,145,256 km (0.097 R)
• M25: 33,494,664 km (0.074 R)
• M26: 35,534,132 km (0.115 R)
• M27: 39,984,070 km (0.115 R)
• M28: 45,607,155 km (0.052 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 388.7

Radius: 6.1

Gravity: 10.45 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 5.58 AU - 7 AU

Year: 10700 Days

Day: 15.1 Hours

Environment

Temp: -236 °C

Axial Tilt: 27.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 72,964,470 km

• M1: 75,846 km (0.114 R)
• M2: 290,369 km (0.06 R)
• M3: 641,625 km (0.085 R)
• M4: 966,103 km (0.104 R)
• M5: 1,205,908 km (0.103 R)
• M6: 1,704,518 km (0.085 R)
• M7: 1,961,228 km (0.112 R)
• M8: 3,486,678 km (0.108 R)
• M9: 3,727,381 km (0.119 R)
• M10: 4,056,795 km (0.088 R)
• M11: 5,508,194 km (0.063 R)
• M12: 7,352,885 km (0.12 R)
• M13: 9,856,256 km (0.105 R)
• M14: 11,091,934 km (0.118 R)
• M15: 12,316,841 km (0.108 R)
• M16: 15,032,492 km (0.093 R)
• M17: 20,044,170 km (0.076 R)
• M18: 22,425,170 km (0.117 R)
• M19: 22,839,556 km (0.102 R)
• M20: 23,683,587 km (0.062 R)
• M21: 25,077,091 km (0.116 R)
• M22: 28,798,338 km (0.082 R)
• M23: 30,789,935 km (0.097 R)
• M24: 32,765,374 km (0.089 R)
• M25: 33,838,141 km (0.088 R)
• M26: 34,603,035 km (0.093 R)
• M27: 34,823,692 km (0.073 R)
• M28: 37,081,722 km (0.063 R)
• M29: 40,649,033 km (0.075 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 858.5

Radius: 3

Gravity: 95.39 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 6.32 AU - 8.4 AU

Year: 13543 Days

Day: 22.8 Hours

Environment

Temp: -233 °C

Axial Tilt: 26.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 72,964,470 km

• M1: 37,549 km (0.117 R)
• M2: 192,832 km (0.093 R)
• M3: 364,720 km (0.111 R)
• M4: 826,827 km (0.112 R)
• M5: 1,110,465 km (0.118 R)
• M6: 1,410,259 km (0.102 R)
• M7: 1,939,088 km (0.077 R)
• M8: 2,089,583 km (0.113 R)
• M9: 2,371,874 km (0.102 R)
• M10: 2,678,849 km (0.073 R)
• M11: 3,397,966 km (0.089 R)
• M12: 3,730,223 km (0.111 R)
• M13: 4,175,277 km (0.101 R)
• M14: 4,959,469 km (0.061 R)
• M15: 5,277,214 km (0.093 R)
• M16: 5,914,352 km (0.098 R)
• M17: 6,231,200 km (0.114 R)
• M18: 8,083,072 km (0.066 R)
• M19: 8,926,804 km (0.087 R)
• M20: 9,882,286 km (0.093 R)
• M21: 15,398,258 km (0.115 R)
• M22: 16,225,086 km (0.049 R)
• M23: 18,378,996 km (0.11 R)
• M24: 21,169,445 km (0.041 R)
• M25: 22,096,204 km (0.099 R)
• M26: 22,379,393 km (0.083 R)
• M27: 26,073,862 km (0.116 R)
• M28: 27,137,951 km (0.045 R)
• M29: 27,354,120 km (0.117 R)
• M30: 29,238,754 km (0.108 R)
• M31: 30,971,846 km (0.114 R)
• M32: 34,895,648 km (0.11 R)
• M33: 37,643,013 km (0.052 R)
• M34: 41,239,795 km (0.071 R)
• M35: 43,711,301 km (0.11 R)
• M36: 44,306,850 km (0.085 R)
• M37: 53,730,020 km (0.097 R)
• M38: 57,204,281 km (0.114 R)
• M39: 61,195,552 km (0.087 R)
• M40: 61,567,303 km (0.078 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 291.4

Radius: 4.1

Gravity: 17.33 G

Time & Orbit

Eccentricity (e): 0.063

Orbit Range: 7.33 AU - 8.31 AU

Year: 14832 Days

Day: 21.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 47.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 72,964,470 km

• M1: 51,611 km (0.112 R)
• M2: 398,230 km (0.043 R)
• M3: 577,448 km (0.103 R)
• M4: 723,007 km (0.091 R)
• M5: 932,444 km (0.109 R)
• M6: 1,278,015 km (0.117 R)
• M7: 1,585,588 km (0.098 R)
• M8: 1,733,989 km (0.119 R)
• M9: 2,442,484 km (0.078 R)
• M10: 2,786,560 km (0.112 R)
• M11: 3,116,273 km (0.036 R)
• M12: 3,255,250 km (0.059 R)
• M13: 3,422,650 km (0.028 R)
• M14: 3,906,000 km (0.036 R)
• M15: 4,205,944 km (0.107 R)
• M16: 6,154,606 km (0.111 R)
• M17: 6,410,867 km (0.069 R)
• M18: 6,984,126 km (0.101 R)
• M19: 12,213,469 km (0.071 R)
• M20: 12,853,449 km (0.103 R)
• M21: 13,948,505 km (0.12 R)
• M22: 15,038,476 km (0.072 R)
• M23: 18,345,187 km (0.067 R)
• M24: 18,875,811 km (0.066 R)
• M25: 19,106,341 km (0.119 R)
• M26: 20,772,712 km (0.07 R)
• M27: 21,515,615 km (0.08 R)
• M28: 22,533,628 km (0.095 R)
• M29: 23,317,820 km (0.092 R)
• M30: 26,348,972 km (0.093 R)
• M31: 26,927,018 km (0.112 R)
• M32: 30,048,378 km (0.032 R)
• M33: 30,257,665 km (0.114 R)
• M34: 35,576,917 km (0.111 R)
• M35: 38,210,438 km (0.068 R)
• M36: 38,456,077 km (0.1 R)
• M37: 39,700,283 km (0.066 R)
• M38: 45,631,838 km (0.067 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 672.3

Radius: 3.2

Gravity: 65.65 G

Time & Orbit

Eccentricity (e): 0.173

Orbit Range: 7.62 AU - 10.8 AU

Year: 18957 Days

Day: 23.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 72,964,470 km

• M1: 42,486 km (0.12 R)
• M2: 142,268 km (0.113 R)
• M3: 391,797 km (0.072 R)
• M4: 494,122 km (0.062 R)
• M5: 1,321,548 km (0.047 R)
• M6: 1,443,470 km (0.112 R)
• M7: 4,365,565 km (0.073 R)
• M8: 7,045,761 km (0.106 R)
• M9: 10,175,797 km (0.047 R)
• M10: 17,252,075 km (0.093 R)
• M11: 24,310,103 km (0.092 R)
• M12: 31,799,870 km (0.107 R)
• M13: 32,305,361 km (0.093 R)
• M14: 33,853,849 km (0.079 R)
• M15: 40,248,110 km (0.117 R)
• M16: 53,201,940 km (0.052 R)
• M17: 61,386,439 km (0.06 R)
• M18: 64,963,025 km (0.064 R)
• M19: 70,798,539 km (0.098 R)
• M20: 72,092,859 km (0.074 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 528 - 20,137 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit