🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 834

Radius: 11.7

Gravity: 6.09 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.54 AU - 0.8 AU

Year: 385 Days

Day: 12.9 Hours

Environment

Temp: -148 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 68,785,821 km

• M1: 145,559 km (0.108 R)
• M2: 570,417 km (0.114 R)
• M3: 1,007,841 km (0.118 R)
• M4: 1,438,234 km (0.101 R)
• M5: 1,820,307 km (0.101 R)
• M6: 2,443,980 km (0.089 R)
• M7: 2,890,081 km (0.115 R)
• M8: 3,557,437 km (0.098 R)
• M9: 4,026,726 km (0.039 R)
• M10: 4,409,098 km (0.072 R)
• M11: 4,875,993 km (0.082 R)
• M12: 5,806,641 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 859

Radius: 14.2

Gravity: 4.26 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.67 AU - 1.01 AU

Year: 541 Days

Day: 8.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 20.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 68,785,821 km

• M1: 176,675 km (0.112 R)
• M2: 666,907 km (0.119 R)
• M3: 1,117,346 km (0.077 R)
• M4: 2,426,328 km (0.107 R)
• M5: 3,125,548 km (0.07 R)
• M6: 3,615,481 km (0.099 R)
• M7: 4,578,592 km (0.071 R)
• M8: 5,317,157 km (0.106 R)
• M9: 6,326,644 km (0.064 R)
• M10: 6,867,290 km (0.097 R)
• M11: 7,373,679 km (0.084 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 99.2

Radius: 14.3

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 1.3 AU - 1.94 AU

Year: 1449 Days

Day: 5.9 Hours

Environment

Temp: -194 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 68,785,821 km

• M1: 178,470 km (0.032 R)
• M2: 640,877 km (0.119 R)
• M3: 1,273,377 km (0.102 R)
• M4: 1,830,031 km (0.061 R)
• M5: 2,401,046 km (0.113 R)
• M6: 2,953,660 km (0.062 R)
• M7: 4,117,831 km (0.072 R)
• M8: 4,727,143 km (0.098 R)
• M9: 5,177,433 km (0.067 R)
• M10: 5,925,272 km (0.038 R)
• M11: 6,373,468 km (0.07 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 486.3

Radius: 10.2

Gravity: 4.67 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 1.64 AU - 2.36 AU

Year: 1988 Days

Day: 9.2 Hours

Environment

Temp: -191 °C

Axial Tilt: 1.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 68,785,821 km

• M1: 135,386 km (0.081 R)
• M2: 709,543 km (0.091 R)
• M3: 1,204,263 km (0.12 R)
• M4: 1,541,456 km (0.109 R)
• M5: 2,053,530 km (0.073 R)
• M6: 2,464,176 km (0.076 R)
• M7: 3,122,556 km (0.117 R)
• M8: 3,485,481 km (0.116 R)
• M9: 5,016,017 km (0.042 R)
• M10: 7,715,510 km (0.085 R)
• M11: 8,563,281 km (0.104 R)
• M12: 11,967,381 km (0.111 R)
• M13: 12,350,950 km (0.046 R)
• M14: 13,021,896 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 680

Radius: 8.1

Gravity: 10.36 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 4.34 AU - 6.2 AU

Year: 8504 Days

Day: 13.9 Hours

Environment

Temp: -219 °C

Axial Tilt: 29.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 68,785,821 km

• M1: 100,829 km (0.115 R)
• M2: 371,900 km (0.098 R)
• M3: 685,308 km (0.1 R)
• M4: 1,000,959 km (0.067 R)
• M5: 1,268,440 km (0.099 R)
• M6: 2,065,348 km (0.057 R)
• M7: 2,340,758 km (0.102 R)
• M8: 3,183,293 km (0.097 R)
• M9: 3,576,885 km (0.042 R)
• M10: 4,433,782 km (0.054 R)
• M11: 7,660,757 km (0.077 R)
• M12: 9,915,646 km (0.119 R)
• M13: 10,355,165 km (0.076 R)
• M14: 10,807,399 km (0.077 R)
• M15: 11,064,408 km (0.11 R)
• M16: 11,751,661 km (0.103 R)
• M17: 14,724,769 km (0.088 R)
• M18: 15,040,869 km (0.073 R)
• M19: 16,826,619 km (0.077 R)
• M20: 19,270,599 km (0.043 R)
• M21: 19,648,932 km (0.082 R)
• M22: 23,110,178 km (0.118 R)
• M23: 23,451,561 km (0.12 R)
• M24: 24,056,834 km (0.104 R)
• M25: 24,850,450 km (0.04 R)
• M26: 27,146,329 km (0.112 R)
• M27: 27,526,457 km (0.109 R)
• M28: 27,813,685 km (0.098 R)
• M29: 31,108,129 km (0.087 R)
• M30: 31,628,879 km (0.08 R)
• M31: 33,226,285 km (0.062 R)
• M32: 37,747,881 km (0.088 R)
• M33: 38,340,438 km (0.109 R)
• M34: 38,939,129 km (0.094 R)
• M35: 41,647,898 km (0.114 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 114.5

Radius: 6

Gravity: 3.18 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 6.83 AU - 7.49 AU

Year: 13467 Days

Day: 25 Hours

Environment

Temp: -231 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 68,785,821 km

• M1: 75,397 km (0.079 R)
• M2: 1,636,750 km (0.053 R)
• M3: 5,656,146 km (0.106 R)
• M4: 6,310,337 km (0.094 R)
• M5: 9,607,624 km (0.118 R)
• M6: 12,571,906 km (0.087 R)
• M7: 13,358,342 km (0.119 R)
• M8: 16,461,301 km (0.103 R)
• M9: 19,183,533 km (0.097 R)
• M10: 21,448,894 km (0.093 R)
• M11: 24,684,696 km (0.113 R)
• M12: 27,271,692 km (0.097 R)
• M13: 27,792,442 km (0.094 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 718.2

Radius: 4.8

Gravity: 31.17 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 6.75 AU - 9.37 AU

Year: 16085 Days

Day: 15.8 Hours

Environment

Temp: -235 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 68,785,821 km

• M1: 85,720 km (0.085 R)
• M2: 239,057 km (0.111 R)
• M3: 411,544 km (0.088 R)
• M4: 618,438 km (0.086 R)
• M5: 1,006,195 km (0.081 R)
• M6: 1,605,784 km (0.09 R)
• M7: 1,844,991 km (0.12 R)
• M8: 3,812,053 km (0.098 R)
• M9: 5,078,997 km (0.09 R)
• M10: 7,038,281 km (0.05 R)
• M11: 8,209,482 km (0.118 R)
• M12: 8,610,255 km (0.118 R)
• M13: 10,003,011 km (0.046 R)
• M14: 10,402,288 km (0.093 R)
• M15: 10,812,037 km (0.118 R)
• M16: 12,042,030 km (0.064 R)
• M17: 13,987,102 km (0.046 R)
• M18: 14,703,526 km (0.111 R)
• M19: 16,919,669 km (0.117 R)
• M20: 21,621,081 km (0.041 R)
• M21: 26,796,270 km (0.114 R)
• M22: 27,233,993 km (0.065 R)
• M23: 31,998,985 km (0.069 R)
• M24: 35,291,783 km (0.115 R)
• M25: 48,748,860 km (0.066 R)
• M26: 52,919,948 km (0.093 R)
• M27: 62,154,325 km (0.057 R)
• M28: 65,653,569 km (0.057 R)
• M29: 66,448,681 km (0.03 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 609.6

Radius: 4.4

Gravity: 31.49 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 8.01 AU - 9.59 AU

Year: 18350 Days

Day: 22.5 Hours

Environment

Temp: -242 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 68,785,821 km

• M1: 54,753 km (0.068 R)
• M2: 199,564 km (0.097 R)
• M3: 348,264 km (0.093 R)
• M4: 1,199,625 km (0.063 R)
• M5: 1,354,310 km (0.064 R)
• M6: 1,738,776 km (0.082 R)
• M7: 2,446,972 km (0.086 R)
• M8: 2,841,163 km (0.082 R)
• M9: 3,117,919 km (0.116 R)
• M10: 3,276,343 km (0.073 R)
• M11: 3,467,978 km (0.11 R)
• M12: 4,375,289 km (0.107 R)
• M13: 5,976,884 km (0.085 R)
• M14: 8,634,191 km (0.07 R)
• M15: 12,508,626 km (0.119 R)
• M16: 13,250,332 km (0.103 R)
• M17: 13,596,950 km (0.055 R)
• M18: 18,070,974 km (0.105 R)
• M19: 18,411,459 km (0.076 R)
• M20: 20,636,877 km (0.038 R)
• M21: 24,768,471 km (0.088 R)
• M22: 25,083,075 km (0.089 R)
• M23: 26,586,384 km (0.095 R)
• M24: 27,696,400 km (0.118 R)
• M25: 29,185,049 km (0.109 R)
• M26: 38,126,513 km (0.118 R)
• M27: 38,968,450 km (0.049 R)
• M28: 39,393,906 km (0.086 R)
• M29: 41,864,067 km (0.092 R)
• M30: 42,760,008 km (0.111 R)
• M31: 45,211,319 km (0.12 R)
• M32: 46,154,234 km (0.092 R)
• M33: 50,224,493 km (0.116 R)
• M34: 52,605,044 km (0.103 R)
• M35: 53,647,891 km (0.108 R)
• M36: 55,059,646 km (0.087 R)
• M37: 58,511,617 km (0.104 R)
• M38: 67,256,959 km (0.099 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.94 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 573.4

Radius: 6.9

Gravity: 12.04 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 8.22 AU - 9.66 AU

Year: 18789 Days

Day: 16.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 5.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 68,785,821 km

• M1: 85,869 km (0.088 R)
• M2: 460,313 km (0.11 R)
• M3: 1,012,030 km (0.066 R)
• M4: 1,453,044 km (0.099 R)
• M5: 2,132,518 km (0.109 R)
• M6: 2,422,438 km (0.047 R)
• M7: 2,931,520 km (0.071 R)
• M8: 6,018,173 km (0.101 R)
• M9: 6,642,744 km (0.041 R)
• M10: 7,588,950 km (0.113 R)
• M11: 8,267,676 km (0.084 R)
• M12: 8,673,385 km (0.047 R)
• M13: 9,306,633 km (0.081 R)
• M14: 9,913,701 km (0.061 R)
• M15: 10,313,726 km (0.085 R)
• M16: 10,724,223 km (0.101 R)
• M17: 11,893,928 km (0.106 R)
• M18: 16,538,344 km (0.085 R)
• M19: 17,593,308 km (0.046 R)
• M20: 18,349,525 km (0.084 R)
• M21: 18,778,871 km (0.079 R)
• M22: 19,479,887 km (0.099 R)
• M23: 21,687,353 km (0.12 R)
• M24: 23,751,056 km (0.118 R)
• M25: 25,514,814 km (0.113 R)
• M26: 26,921,334 km (0.062 R)
• M27: 29,184,749 km (0.116 R)
• M28: 29,652,093 km (0.118 R)
• M29: 32,813,096 km (0.054 R)
• M30: 33,957,520 km (0.044 R)
• M31: 36,731,214 km (0.035 R)
• M32: 39,652,262 km (0.066 R)
• M33: 43,630,668 km (0.116 R)
• M34: 46,109,505 km (0.08 R)
• M35: 49,503,282 km (0.087 R)
• M36: 57,146,985 km (0.099 R)
• M37: 60,299,162 km (0.057 R)
• M38: 65,341,358 km (0.103 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 341 - 14,991 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit