🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.4 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 937.5

Radius: 8.8

Gravity: 12.11 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 0.69 AU - 0.89 AU

Year: 476 Days

Day: 7.2 Hours

Environment

Temp: -158 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 62,837,895 km

• M1: 109,506 km (0.096 R)
• M2: 389,553 km (0.08 R)
• M3: 964,607 km (0.075 R)
• M4: 1,559,259 km (0.031 R)
• M5: 2,765,017 km (0.119 R)
• M6: 3,490,118 km (0.065 R)
• M7: 4,232,722 km (0.078 R)
• M8: 5,177,283 km (0.064 R)
• M9: 5,468,999 km (0.037 R)
• M10: 5,862,741 km (0.097 R)
• M11: 6,787,854 km (0.061 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 82.4

Radius: 13.2

Gravity: 0.47 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.59 AU - 1.69 AU

Year: 1424 Days

Day: 12.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 154.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 62,837,895 km

• M1: 164,109 km (0.068 R)
• M2: 633,547 km (0.099 R)
• M3: 1,522,757 km (0.047 R)
• M4: 3,114,628 km (0.11 R)
• M5: 3,695,965 km (0.069 R)
• M6: 4,348,960 km (0.079 R)
• M7: 5,223,359 km (0.053 R)
• M8: 6,156,700 km (0.063 R)

Planet 3 - Ice Giant

Semi-Major Axis: 5.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 660.9

Radius: 4.9

Gravity: 27.53 G

Time & Orbit

Eccentricity (e): 0.125

Orbit Range: 5.13 AU - 6.59 AU

Year: 9621 Days

Day: 22.9 Hours

Environment

Temp: -228 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 62,837,895 km

• M1: 61,036 km (0.113 R)
• M2: 213,476 km (0.114 R)
• M3: 440,865 km (0.116 R)
• M4: 755,619 km (0.106 R)
• M5: 918,830 km (0.091 R)
• M6: 1,220,569 km (0.105 R)
• M7: 1,394,851 km (0.101 R)
• M8: 2,020,618 km (0.058 R)
• M9: 2,193,853 km (0.118 R)
• M10: 3,078,275 km (0.1 R)
• M11: 3,987,980 km (0.119 R)
• M12: 4,432,136 km (0.073 R)
• M13: 5,287,686 km (0.117 R)
• M14: 5,551,278 km (0.104 R)
• M15: 5,997,977 km (0.041 R)
• M16: 7,730,769 km (0.071 R)
• M17: 8,200,207 km (0.12 R)
• M18: 8,824,928 km (0.096 R)
• M19: 9,102,133 km (0.044 R)
• M20: 9,290,177 km (0.109 R)
• M21: 12,089,154 km (0.084 R)
• M22: 12,897,281 km (0.078 R)
• M23: 17,994,529 km (0.096 R)
• M24: 19,199,840 km (0.107 R)
• M25: 20,618,925 km (0.084 R)
• M26: 24,925,100 km (0.081 R)
• M27: 33,000,093 km (0.113 R)
• M28: 34,117,889 km (0.105 R)
• M29: 35,841,406 km (0.105 R)
• M30: 36,310,694 km (0.119 R)
• M31: 36,902,952 km (0.119 R)
• M32: 41,875,286 km (0.109 R)
• M33: 42,657,683 km (0.097 R)
• M34: 43,983,270 km (0.103 R)

Planet 4 - Ice Giant

Semi-Major Axis: 5.88 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 930.4

Radius: 5.8

Gravity: 27.66 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 5.61 AU - 6.15 AU

Year: 9671 Days

Day: 24.7 Hours

Environment

Temp: -218 °C

Axial Tilt: 37.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 62,837,895 km

• M1: 72,705 km (0.077 R)
• M2: 268,977 km (0.12 R)
• M3: 1,443,919 km (0.105 R)
• M4: 1,802,804 km (0.109 R)
• M5: 2,038,570 km (0.062 R)
• M6: 2,655,661 km (0.06 R)
• M7: 2,849,839 km (0.094 R)
• M8: 3,030,404 km (0.098 R)
• M9: 3,490,418 km (0.053 R)
• M10: 3,967,934 km (0.083 R)
• M11: 4,671,194 km (0.048 R)
• M12: 5,523,303 km (0.09 R)
• M13: 5,877,102 km (0.095 R)
• M14: 7,029,903 km (0.116 R)
• M15: 8,417,723 km (0.11 R)
• M16: 9,421,973 km (0.107 R)
• M17: 10,773,141 km (0.117 R)
• M18: 15,248,361 km (0.099 R)
• M19: 19,180,242 km (0.085 R)
• M20: 20,073,341 km (0.106 R)
• M21: 21,164,060 km (0.089 R)
• M22: 23,280,570 km (0.109 R)
• M23: 28,342,214 km (0.118 R)
• M24: 31,349,580 km (0.079 R)
• M25: 33,507,230 km (0.111 R)
• M26: 34,326,428 km (0.088 R)
• M27: 38,751,832 km (0.099 R)
• M28: 40,045,256 km (0.109 R)
• M29: 40,307,501 km (0.098 R)
• M30: 40,570,643 km (0.109 R)
• M31: 43,266,696 km (0.069 R)
• M32: 49,916,022 km (0.075 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 156.1

Radius: 7.8

Gravity: 2.57 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 5.92 AU - 7.42 AU

Year: 11684 Days

Day: 18.8 Hours

Environment

Temp: -227 °C

Axial Tilt: 13.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 62,837,895 km

• M1: 111,750 km (0.104 R)
• M2: 384,167 km (0.098 R)
• M3: 1,188,256 km (0.042 R)
• M4: 1,473,539 km (0.07 R)
• M5: 2,345,096 km (0.097 R)
• M6: 3,331,844 km (0.049 R)
• M7: 3,977,059 km (0.113 R)
• M8: 6,349,831 km (0.09 R)
• M9: 7,446,832 km (0.066 R)
• M10: 8,907,805 km (0.081 R)
• M11: 11,014,442 km (0.116 R)
• M12: 11,834,089 km (0.093 R)
• M13: 12,642,067 km (0.119 R)
• M14: 14,032,879 km (0.119 R)
• M15: 18,147,568 km (0.098 R)
• M16: 18,412,057 km (0.071 R)
• M17: 21,567,525 km (0.09 R)
• M18: 23,389,477 km (0.1 R)
• M19: 25,229,681 km (0.087 R)
• M20: 28,389,188 km (0.074 R)
• M21: 30,854,561 km (0.08 R)
• M22: 31,707,119 km (0.075 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 790.6

Radius: 7.6

Gravity: 13.69 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 5.79 AU - 7.87 AU

Year: 12107 Days

Day: 15.6 Hours

Environment

Temp: -238 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 62,837,895 km

• M1: 95,144 km (0.049 R)
• M2: 510,877 km (0.075 R)
• M3: 964,158 km (0.104 R)
• M4: 1,254,677 km (0.069 R)
• M5: 2,015,981 km (0.112 R)
• M6: 2,476,892 km (0.076 R)
• M7: 2,799,425 km (0.104 R)
• M8: 3,297,885 km (0.088 R)
• M9: 4,169,891 km (0.11 R)
• M10: 4,918,628 km (0.102 R)
• M11: 6,720,984 km (0.112 R)
• M12: 8,019,643 km (0.079 R)
• M13: 8,728,288 km (0.051 R)
• M14: 9,023,145 km (0.097 R)
• M15: 10,654,061 km (0.03 R)
• M16: 14,901,893 km (0.118 R)
• M17: 15,681,148 km (0.098 R)
• M18: 16,561,831 km (0.095 R)
• M19: 18,501,816 km (0.059 R)
• M20: 18,989,056 km (0.06 R)
• M21: 21,643,820 km (0.098 R)
• M22: 22,550,383 km (0.118 R)
• M23: 25,923,217 km (0.11 R)
• M24: 26,945,269 km (0.098 R)
• M25: 28,313,940 km (0.056 R)
• M26: 31,417,946 km (0.036 R)
• M27: 32,228,019 km (0.102 R)
• M28: 33,051,854 km (0.098 R)
• M29: 33,409,244 km (0.112 R)
• M30: 36,997,947 km (0.099 R)
• M31: 37,383,162 km (0.108 R)
• M32: 40,698,849 km (0.099 R)
• M33: 40,972,314 km (0.099 R)
• M34: 44,494,296 km (0.115 R)
• M35: 47,453,342 km (0.108 R)
• M36: 48,213,150 km (0.069 R)
• M37: 55,755,725 km (0.106 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 437.3

Radius: 6.1

Gravity: 11.75 G

Time & Orbit

Eccentricity (e): 0.234

Orbit Range: 5.57 AU - 8.97 AU

Year: 13295 Days

Day: 18.5 Hours

Environment

Temp: -227 °C

Axial Tilt: 37.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 62,837,895 km

• M1: 75,996 km (0.09 R)
• M2: 620,981 km (0.074 R)
• M3: 1,531,733 km (0.098 R)
• M4: 3,459,900 km (0.095 R)
• M5: 3,873,986 km (0.12 R)
• M6: 4,205,645 km (0.105 R)
• M7: 5,483,660 km (0.104 R)
• M8: 6,010,094 km (0.104 R)
• M9: 6,454,849 km (0.084 R)
• M10: 7,286,015 km (0.093 R)
• M11: 13,886,273 km (0.041 R)
• M12: 15,061,962 km (0.102 R)
• M13: 15,331,987 km (0.115 R)
• M14: 16,373,337 km (0.063 R)
• M15: 16,947,644 km (0.072 R)
• M16: 19,941,247 km (0.093 R)
• M17: 20,513,458 km (0.072 R)
• M18: 21,349,860 km (0.085 R)
• M19: 21,948,700 km (0.067 R)
• M20: 28,876,279 km (0.112 R)
• M21: 35,439,586 km (0.091 R)
• M22: 37,500,297 km (0.063 R)
• M23: 42,931,298 km (0.069 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 374.7

Radius: 3.8

Gravity: 25.95 G

Time & Orbit

Eccentricity (e): 0.207

Orbit Range: 6.19 AU - 9.41 AU

Year: 14775 Days

Day: 25 Hours

Environment

Temp: -237 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 62,837,895 km

• M1: 47,273 km (0.085 R)
• M2: 283,937 km (0.114 R)
• M3: 453,730 km (0.099 R)
• M4: 573,558 km (0.069 R)
• M5: 889,659 km (0.102 R)
• M6: 1,047,335 km (0.079 R)
• M7: 1,186,610 km (0.033 R)
• M8: 1,605,185 km (0.1 R)
• M9: 1,823,748 km (0.05 R)
• M10: 2,133,565 km (0.046 R)
• M11: 2,497,536 km (0.078 R)
• M12: 3,250,313 km (0.081 R)
• M13: 3,497,897 km (0.068 R)
• M14: 3,892,686 km (0.089 R)
• M15: 4,646,211 km (0.059 R)
• M16: 5,322,094 km (0.062 R)
• M17: 5,807,689 km (0.092 R)
• M18: 6,986,969 km (0.107 R)
• M19: 7,232,309 km (0.086 R)
• M20: 9,908,914 km (0.03 R)
• M21: 10,428,767 km (0.063 R)
• M22: 10,857,664 km (0.106 R)
• M23: 12,510,720 km (0.075 R)
• M24: 13,117,639 km (0.094 R)
• M25: 14,787,002 km (0.088 R)
• M26: 15,327,798 km (0.096 R)
• M27: 17,324,780 km (0.105 R)
• M28: 20,220,546 km (0.096 R)
• M29: 20,970,779 km (0.057 R)
• M30: 23,241,974 km (0.107 R)
• M31: 25,671,743 km (0.109 R)
• M32: 27,047,744 km (0.103 R)
• M33: 29,097,534 km (0.09 R)
• M34: 29,838,791 km (0.103 R)
• M35: 32,025,763 km (0.111 R)
• M36: 32,588,849 km (0.112 R)
• M37: 35,503,015 km (0.102 R)
• M38: 48,897,560 km (0.055 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 562

Radius: 5.5

Gravity: 18.58 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 6.87 AU - 9.97 AU

Year: 16571 Days

Day: 22.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 62,837,895 km

• M1: 73,453 km (0.083 R)
• M2: 428,448 km (0.102 R)
• M3: 641,476 km (0.059 R)
• M4: 3,120,761 km (0.09 R)
• M5: 3,678,462 km (0.047 R)
• M6: 4,176,773 km (0.077 R)
• M7: 5,981,072 km (0.079 R)
• M8: 8,345,916 km (0.102 R)
• M9: 13,357,295 km (0.062 R)
• M10: 15,246,267 km (0.066 R)
• M11: 18,694,648 km (0.051 R)
• M12: 19,287,354 km (0.098 R)
• M13: 19,892,328 km (0.118 R)
• M14: 25,504,043 km (0.107 R)
• M15: 26,549,284 km (0.116 R)
• M16: 48,946,179 km (0.083 R)
• M17: 58,246,829 km (0.041 R)
• M18: 59,690,747 km (0.106 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 374 - 12,880 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit