🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.61 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.55

Radius: 1.83

Gravity: 1.36 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 0.46 AU - 0.76 AU

Year: 303 Days

Day: 23.3 Hours

Environment

Temp: -137 °C

Axial Tilt: 21.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.5

Radius: 8.2

Gravity: 3.61 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 0.74 AU - 0.86 AU

Year: 455 Days

Day: 13.1 Hours

Environment

Temp: -143 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 28,512,487 km

• M1: 102,026 km (0.09 R)
• M2: 512,672 km (0.091 R)
• M3: 807,829 km (0.1 R)
• M4: 1,069,176 km (0.095 R)
• M5: 1,422,825 km (0.034 R)
• M6: 1,832,574 km (0.085 R)
• M7: 2,112,023 km (0.069 R)
• M8: 2,402,991 km (0.036 R)
• M9: 2,693,210 km (0.047 R)
• M10: 3,561,925 km (0.094 R)
• M11: 4,024,781 km (0.116 R)
• M12: 4,308,718 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 659.5

Radius: 11.1

Gravity: 5.35 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.9 AU - 1.06 AU

Year: 617 Days

Day: 10.9 Hours

Environment

Temp: -150 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 28,512,487 km

• M1: 138,079 km (0.108 R)
• M2: 612,603 km (0.116 R)
• M3: 970,441 km (0.055 R)
• M4: 1,509,293 km (0.107 R)
• M5: 1,951,205 km (0.115 R)
• M6: 2,338,514 km (0.087 R)
• M7: 2,744,223 km (0.071 R)
• M8: 3,184,789 km (0.112 R)
• M9: 3,726,633 km (0.036 R)
• M10: 4,224,494 km (0.108 R)
• M11: 4,670,146 km (0.092 R)
• M12: 5,062,542 km (0.082 R)
• M13: 5,839,702 km (0.095 R)
• M14: 6,735,345 km (0.11 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 567.6

Radius: 13.1

Gravity: 3.31 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 1.15 AU - 1.45 AU

Year: 942 Days

Day: 12.4 Hours

Environment

Temp: -181 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 28,512,487 km

• M1: 162,912 km (0.069 R)
• M2: 681,568 km (0.068 R)
• M3: 1,526,796 km (0.12 R)
• M4: 2,283,312 km (0.111 R)
• M5: 2,701,887 km (0.092 R)
• M6: 3,278,138 km (0.114 R)
• M7: 3,711,972 km (0.049 R)
• M8: 6,071,280 km (0.094 R)
• M9: 7,674,969 km (0.061 R)
• M10: 9,296,161 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 391.7

Radius: 9.5

Gravity: 4.34 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.55 AU - 1.67 AU

Year: 1299 Days

Day: 7.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 48.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 28,512,487 km

• M1: 119,678 km (0.083 R)
• M2: 808,128 km (0.103 R)
• M3: 1,371,364 km (0.086 R)
• M4: 1,851,722 km (0.096 R)
• M5: 2,296,627 km (0.117 R)
• M6: 2,616,168 km (0.106 R)
• M7: 3,057,481 km (0.074 R)
• M8: 3,712,720 km (0.08 R)
• M9: 4,904,417 km (0.087 R)
• M10: 5,598,102 km (0.114 R)
• M11: 6,312,133 km (0.093 R)
• M12: 8,656,780 km (0.066 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 83.8

Radius: 12

Gravity: 0.58 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 2.44 AU - 3 AU

Year: 2852 Days

Day: 7.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 28,512,487 km

• M1: 149,448 km (0.039 R)
• M2: 548,575 km (0.107 R)
• M3: 1,322,894 km (0.115 R)
• M4: 1,803,253 km (0.034 R)
• M5: 2,204,474 km (0.099 R)
• M6: 2,653,866 km (0.113 R)
• M7: 3,150,980 km (0.099 R)
• M8: 4,934,187 km (0.074 R)
• M9: 5,731,244 km (0.094 R)
• M10: 6,612,375 km (0.092 R)
• M11: 8,724,398 km (0.108 R)
• M12: 9,252,030 km (0.11 R)
• M13: 10,219,180 km (0.101 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 497.3

Radius: 10.3

Gravity: 4.69 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 3.14 AU - 4.8 AU

Year: 5029 Days

Day: 6.3 Hours

Environment

Temp: -216 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 28,512,487 km

• M1: 128,056 km (0.072 R)
• M2: 480,060 km (0.104 R)
• M3: 1,050,476 km (0.106 R)
• M4: 1,749,098 km (0.115 R)
• M5: 2,665,684 km (0.104 R)
• M6: 3,810,557 km (0.115 R)
• M7: 4,350,755 km (0.095 R)
• M8: 5,529,137 km (0.037 R)
• M9: 7,924,199 km (0.099 R)
• M10: 9,589,523 km (0.076 R)
• M11: 10,165,325 km (0.087 R)
• M12: 10,807,698 km (0.108 R)
• M13: 11,844,860 km (0.047 R)
• M14: 12,701,906 km (0.12 R)
• M15: 13,650,806 km (0.076 R)
• M16: 14,274,030 km (0.089 R)
• M17: 15,858,571 km (0.097 R)
• M18: 16,781,291 km (0.094 R)
• M19: 19,633,973 km (0.049 R)
• M20: 24,496,352 km (0.119 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.32 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 629.2

Radius: 4.6

Gravity: 29.74 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 6.29 AU - 6.35 AU

Year: 10102 Days

Day: 15 Hours

Environment

Temp: -215 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (37)

Outer Limit: 28,512,487 km

• M1: 57,296 km (0.103 R)
• M2: 612,603 km (0.09 R)
• M3: 919,279 km (0.097 R)
• M4: 1,107,922 km (0.053 R)
• M5: 2,411,218 km (0.095 R)
• M6: 2,901,152 km (0.058 R)
• M7: 3,578,381 km (0.073 R)
• M8: 3,756,403 km (0.096 R)
• M9: 3,967,336 km (0.058 R)
• M10: 4,383,966 km (0.095 R)
• M11: 5,809,035 km (0.108 R)
• M12: 6,382,743 km (0.094 R)
• M13: 6,837,071 km (0.115 R)
• M14: 7,151,676 km (0.079 R)
• M15: 7,476,004 km (0.045 R)
• M16: 7,641,758 km (0.104 R)
• M17: 8,597,838 km (0.097 R)
• M18: 9,389,361 km (0.109 R)
• M19: 9,679,880 km (0.109 R)
• M20: 13,223,554 km (0.045 R)
• M21: 14,085,986 km (0.065 R)
• M22: 14,659,843 km (0.116 R)
• M23: 14,919,844 km (0.099 R)
• M24: 16,685,249 km (0.106 R)
• M25: 18,284,001 km (0.069 R)
• M26: 19,120,403 km (0.09 R)
• M27: 19,902,650 km (0.071 R)
• M28: 21,698,423 km (0.075 R)
• M29: 23,333,677 km (0.049 R)
• M30: 24,317,134 km (0.111 R)
• M31: 29,754,867 km (0.087 R)
• M32: 33,310,659 km (0.081 R)
• M33: 34,670,803 km (0.036 R)
• M34: 36,779,983 km (0.091 R)
• M35: 37,259,893 km (0.1 R)
• M36: 39,471,847 km (0.079 R)
• M37: 44,425,930 km (0.1 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 792.7

Radius: 3.1

Gravity: 82.49 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 7.09 AU - 7.83 AU

Year: 12955 Days

Day: 21.9 Hours

Environment

Temp: -218 °C

Axial Tilt: 38.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 28,512,487 km

• M1: 38,895 km (0.062 R)
• M2: 166,802 km (0.101 R)
• M3: 302,188 km (0.037 R)
• M4: 468,241 km (0.081 R)
• M5: 649,255 km (0.107 R)
• M6: 928,255 km (0.095 R)
• M7: 1,029,533 km (0.091 R)
• M8: 1,176,138 km (0.092 R)
• M9: 1,526,497 km (0.059 R)
• M10: 1,767,798 km (0.11 R)
• M11: 2,128,329 km (0.098 R)
• M12: 2,535,684 km (0.113 R)
• M13: 2,757,837 km (0.083 R)
• M14: 3,090,542 km (0.105 R)
• M15: 3,190,324 km (0.112 R)
• M16: 3,834,941 km (0.083 R)
• M17: 4,279,397 km (0.089 R)
• M18: 4,856,994 km (0.08 R)
• M19: 6,484,320 km (0.066 R)
• M20: 8,393,787 km (0.084 R)
• M21: 8,936,378 km (0.112 R)
• M22: 14,076,711 km (0.102 R)
• M23: 14,213,593 km (0.117 R)
• M24: 16,527,573 km (0.058 R)
• M25: 19,248,459 km (0.108 R)
• M26: 20,188,831 km (0.096 R)
• M27: 23,097,911 km (0.049 R)
• M28: 24,454,016 km (0.083 R)
• M29: 26,378,144 km (0.113 R)
• M30: 32,036,534 km (0.1 R)
• M31: 34,958,479 km (0.08 R)
• M32: 37,393,783 km (0.057 R)
• M33: 40,352,230 km (0.119 R)
• M34: 46,426,054 km (0.049 R)
• M35: 47,802,204 km (0.056 R)
• M36: 49,048,205 km (0.062 R)
• M37: 56,117,752 km (0.047 R)
• M38: 57,155,213 km (0.071 R)
• M39: 59,090,112 km (0.115 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 45.8

Radius: 6.1

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 7.38 AU - 11.02 AU

Year: 17743 Days

Day: 21.7 Hours

Environment

Temp: -233 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 28,512,487 km

• M1: 92,751 km (0.112 R)
• M2: 408,552 km (0.099 R)
• M3: 706,850 km (0.093 R)
• M4: 1,253,780 km (0.032 R)
• M5: 4,381,722 km (0.078 R)
• M6: 4,963,508 km (0.108 R)
• M7: 5,453,740 km (0.088 R)
• M8: 6,404,285 km (0.096 R)
• M9: 8,288,470 km (0.06 R)
• M10: 9,017,311 km (0.081 R)
• M11: 10,040,111 km (0.092 R)
• M12: 10,383,139 km (0.11 R)
• M13: 10,822,957 km (0.101 R)
• M14: 12,558,891 km (0.034 R)
• M15: 14,580,856 km (0.118 R)
• M16: 16,631,244 km (0.085 R)
• M17: 17,051,016 km (0.09 R)
• M18: 19,720,141 km (0.101 R)
• M19: 21,223,600 km (0.071 R)
• M20: 26,270,732 km (0.099 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 437 - 18,132 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit