🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 561.7

Radius: 9.6

Gravity: 6.09 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 0.51 AU - 0.57 AU

Year: 274 Days

Day: 8.7 Hours

Environment

Temp: -144 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 70,207,489 km

• M1: 119,379 km (0.094 R)
• M2: 433,983 km (0.105 R)
• M3: 739,013 km (0.119 R)
• M4: 1,044,343 km (0.073 R)
• M5: 1,482,515 km (0.071 R)
• M6: 2,807,054 km (0.116 R)
• M7: 3,333,340 km (0.065 R)
• M8: 3,855,436 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 568.3

Radius: 11.2

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 0.5 AU - 0.62 AU

Year: 289 Days

Day: 6.4 Hours

Environment

Temp: -149 °C

Axial Tilt: 0.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 70,207,489 km

• M1: 139,276 km (0.097 R)
• M2: 503,397 km (0.085 R)
• M3: 1,012,778 km (0.069 R)
• M4: 1,435,691 km (0.091 R)
• M5: 2,147,777 km (0.1 R)
• M6: 2,537,629 km (0.099 R)
• M7: 3,647,645 km (0.093 R)
• M8: 4,014,608 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.49 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 689.8

Radius: 10.3

Gravity: 6.5 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.43 AU - 1.55 AU

Year: 1255 Days

Day: 13.4 Hours

Environment

Temp: -183 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 70,207,489 km

• M1: 128,056 km (0.118 R)
• M2: 479,760 km (0.111 R)
• M3: 896,540 km (0.078 R)
• M4: 1,357,601 km (0.111 R)
• M5: 1,774,979 km (0.119 R)
• M6: 2,209,860 km (0.11 R)
• M7: 2,600,759 km (0.109 R)
• M8: 3,009,909 km (0.116 R)
• M9: 3,477,103 km (0.068 R)
• M10: 3,975,563 km (0.025 R)
• M11: 5,359,643 km (0.093 R)
• M12: 6,747,313 km (0.079 R)
• M13: 8,473,223 km (0.115 R)
• M14: 9,468,947 km (0.115 R)
• M15: 10,540,965 km (0.092 R)
• M16: 10,904,488 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 462

Radius: 14.9

Gravity: 2.08 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 2.68 AU - 4.02 AU

Year: 4232 Days

Day: 6 Hours

Environment

Temp: -210 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 70,207,489 km

• M1: 185,352 km (0.104 R)
• M2: 826,379 km (0.066 R)
• M3: 1,939,536 km (0.052 R)
• M4: 2,753,050 km (0.09 R)
• M5: 3,705,240 km (0.101 R)
• M6: 4,380,824 km (0.092 R)
• M7: 5,263,601 km (0.082 R)
• M8: 5,815,617 km (0.098 R)
• M9: 8,077,836 km (0.119 R)
• M10: 9,293,768 km (0.073 R)
• M11: 10,263,312 km (0.076 R)
• M12: 11,299,277 km (0.094 R)
• M13: 16,536,997 km (0.097 R)
• M14: 19,588,345 km (0.099 R)
• M15: 21,246,937 km (0.049 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 430.7

Radius: 7.3

Gravity: 8.08 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 5.44 AU - 5.9 AU

Year: 9319 Days

Day: 18.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 46 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 70,207,489 km

• M1: 91,105 km (0.096 R)
• M2: 541,993 km (0.072 R)
• M3: 860,188 km (0.118 R)
• M4: 1,266,496 km (0.119 R)
• M5: 1,521,261 km (0.056 R)
• M6: 2,135,659 km (0.048 R)
• M7: 3,330,497 km (0.117 R)
• M8: 3,628,945 km (0.115 R)
• M9: 4,123,217 km (0.088 R)
• M10: 5,976,285 km (0.069 R)
• M11: 7,178,304 km (0.107 R)
• M12: 9,006,689 km (0.09 R)
• M13: 9,818,108 km (0.088 R)
• M14: 12,931,539 km (0.117 R)
• M15: 14,139,991 km (0.085 R)
• M16: 15,359,363 km (0.045 R)
• M17: 16,188,434 km (0.036 R)
• M18: 16,779,795 km (0.069 R)
• M19: 17,659,131 km (0.099 R)
• M20: 18,568,836 km (0.113 R)
• M21: 18,999,079 km (0.107 R)
• M22: 19,805,262 km (0.116 R)
• M23: 20,481,444 km (0.058 R)
• M24: 21,250,826 km (0.032 R)
• M25: 21,485,396 km (0.099 R)
• M26: 22,360,095 km (0.119 R)
• M27: 24,953,074 km (0.07 R)
• M28: 25,389,152 km (0.096 R)
• M29: 28,019,831 km (0.089 R)
• M30: 28,491,064 km (0.104 R)
• M31: 29,063,575 km (0.116 R)
• M32: 29,838,791 km (0.094 R)
• M33: 31,027,197 km (0.1 R)
• M34: 36,208,669 km (0.113 R)
• M35: 37,788,572 km (0.03 R)
• M36: 38,479,564 km (0.079 R)
• M37: 39,061,799 km (0.109 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 825.6

Radius: 7.3

Gravity: 15.49 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 6.6 AU - 9.06 AU

Year: 15124 Days

Day: 22 Hours

Environment

Temp: -241 °C

Axial Tilt: 120.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 70,207,489 km

• M1: 90,806 km (0.119 R)
• M2: 340,784 km (0.032 R)
• M3: 573,259 km (0.061 R)
• M4: 805,435 km (0.098 R)
• M5: 1,564,195 km (0.069 R)
• M6: 2,310,838 km (0.087 R)
• M7: 2,919,402 km (0.037 R)
• M8: 3,274,697 km (0.051 R)
• M9: 4,164,805 km (0.067 R)
• M10: 6,125,734 km (0.074 R)
• M11: 6,970,662 km (0.117 R)
• M12: 7,467,327 km (0.055 R)
• M13: 8,430,289 km (0.111 R)
• M14: 8,889,853 km (0.082 R)
• M15: 9,312,019 km (0.098 R)
• M16: 12,004,631 km (0.03 R)
• M17: 13,459,171 km (0.044 R)
• M18: 14,372,017 km (0.091 R)
• M19: 15,779,434 km (0.12 R)
• M20: 18,693,900 km (0.097 R)
• M21: 24,011,805 km (0.035 R)
• M22: 25,038,345 km (0.117 R)
• M23: 27,732,304 km (0.085 R)
• M24: 30,021,899 km (0.064 R)
• M25: 32,187,627 km (0.091 R)
• M26: 34,713,887 km (0.075 R)
• M27: 35,760,324 km (0.099 R)
• M28: 38,885,872 km (0.03 R)
• M29: 45,209,225 km (0.115 R)
• M30: 47,088,922 km (0.079 R)
• M31: 49,020,081 km (0.108 R)
• M32: 50,836,199 km (0.054 R)
• M33: 52,015,030 km (0.039 R)
• M34: 58,917,925 km (0.088 R)
• M35: 60,969,809 km (0.101 R)
• M36: 64,234,035 km (0.115 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.96 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 313

Radius: 7.1

Gravity: 6.21 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 6.77 AU - 11.15 AU

Year: 18513 Days

Day: 18.7 Hours

Environment

Temp: -241 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 70,207,489 km

• M1: 88,412 km (0.054 R)
• M2: 333,454 km (0.118 R)
• M3: 828,174 km (0.099 R)
• M4: 1,231,490 km (0.112 R)
• M5: 2,122,046 km (0.099 R)
• M6: 2,813,038 km (0.097 R)
• M7: 3,698,658 km (0.075 R)
• M8: 4,003,239 km (0.084 R)
• M9: 4,726,246 km (0.105 R)
• M10: 6,993,551 km (0.06 R)
• M11: 8,222,348 km (0.099 R)
• M12: 8,888,058 km (0.102 R)
• M13: 9,848,177 km (0.105 R)
• M14: 10,489,055 km (0.069 R)
• M15: 13,852,613 km (0.031 R)
• M16: 15,491,757 km (0.037 R)
• M17: 17,409,003 km (0.088 R)
• M18: 19,150,472 km (0.097 R)
• M19: 19,396,561 km (0.103 R)
• M20: 21,796,709 km (0.096 R)
• M21: 24,005,970 km (0.042 R)
• M22: 28,542,526 km (0.098 R)
• M23: 31,750,502 km (0.111 R)
• M24: 32,676,065 km (0.089 R)
• M25: 33,500,498 km (0.094 R)
• M26: 37,064,368 km (0.103 R)
• M27: 39,266,748 km (0.085 R)
• M28: 42,941,770 km (0.059 R)
• M29: 46,100,678 km (0.096 R)
• M30: 48,189,513 km (0.107 R)
• M31: 51,756,974 km (0.075 R)
• M32: 52,555,078 km (0.091 R)
• M33: 55,496,472 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 857.4

Radius: 3.3

Gravity: 78.73 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 8.54 AU - 11.22 AU

Year: 21436 Days

Day: 16.6 Hours

Environment

Temp: -230 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 70,207,489 km

• M1: 41,139 km (0.104 R)
• M2: 271,520 km (0.081 R)
• M3: 567,126 km (0.071 R)
• M4: 1,045,091 km (0.066 R)
• M5: 1,155,045 km (0.074 R)
• M6: 1,382,284 km (0.062 R)
• M7: 2,178,145 km (0.085 R)
• M8: 2,598,216 km (0.066 R)
• M9: 2,801,370 km (0.076 R)
• M10: 3,239,392 km (0.09 R)
• M11: 4,012,664 km (0.091 R)
• M12: 4,567,672 km (0.091 R)
• M13: 5,371,611 km (0.073 R)
• M14: 7,106,796 km (0.029 R)
• M15: 8,560,888 km (0.113 R)
• M16: 9,067,426 km (0.113 R)
• M17: 10,016,774 km (0.09 R)
• M18: 11,360,911 km (0.073 R)
• M19: 11,562,270 km (0.073 R)
• M20: 13,259,607 km (0.08 R)
• M21: 15,441,193 km (0.086 R)
• M22: 15,854,382 km (0.115 R)
• M23: 17,314,607 km (0.094 R)
• M24: 18,305,693 km (0.112 R)
• M25: 27,270,645 km (0.037 R)
• M26: 28,982,194 km (0.105 R)
• M27: 30,894,055 km (0.059 R)
• M28: 38,773,375 km (0.031 R)
• M29: 41,564,871 km (0.102 R)
• M30: 44,653,468 km (0.088 R)
• M31: 48,945,880 km (0.051 R)
• M32: 49,478,748 km (0.096 R)
• M33: 52,386,033 km (0.075 R)
• M34: 56,566,695 km (0.097 R)
• M35: 71,110,749 km (0.075 R)
• M36: 71,338,138 km (0.043 R)
• M37: 72,252,181 km (0.11 R)
• M38: 72,481,814 km (0.068 R)
• M39: 77,179,337 km (0.04 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.13 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 434.6

Radius: 3.2

Gravity: 42.44 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 9.22 AU - 11.04 AU

Year: 22255 Days

Day: 17.6 Hours

Environment

Temp: -245 °C

Axial Tilt: 33.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 70,207,489 km

• M1: 40,242 km (0.099 R)
• M2: 893,548 km (0.109 R)
• M3: 1,059,153 km (0.114 R)
• M4: 2,607,491 km (0.093 R)
• M5: 2,822,014 km (0.026 R)
• M6: 4,202,055 km (0.081 R)
• M7: 4,805,383 km (0.103 R)
• M8: 5,895,502 km (0.081 R)
• M9: 9,076,552 km (0.066 R)
• M10: 11,841,719 km (0.04 R)
• M11: 12,762,643 km (0.104 R)
• M12: 14,377,552 km (0.08 R)
• M13: 16,441,105 km (0.067 R)
• M14: 18,091,170 km (0.11 R)
• M15: 26,668,663 km (0.114 R)
• M16: 31,949,019 km (0.088 R)
• M17: 32,701,795 km (0.054 R)
• M18: 33,338,035 km (0.104 R)
• M19: 36,917,015 km (0.043 R)
• M20: 54,500,599 km (0.103 R)
• M21: 55,394,296 km (0.093 R)
• M22: 61,732,459 km (0.044 R)
• M23: 62,508,423 km (0.093 R)
• M24: 65,275,684 km (0.089 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: 326 - 14,524 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit