🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 1000

Radius: 11.2

Gravity: 7.97 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 0.55 AU - 0.75 AU

Year: 368 Days

Day: 12.3 Hours

Environment

Temp: -156 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 90,266,025 km

• M1: 139,276 km (0.117 R)
• M2: 544,536 km (0.105 R)
• M3: 933,192 km (0.072 R)
• M4: 1,435,092 km (0.116 R)
• M5: 1,947,914 km (0.12 R)
• M6: 2,741,231 km (0.111 R)
• M7: 3,229,818 km (0.092 R)
• M8: 3,801,880 km (0.085 R)
• M9: 4,229,281 km (0.117 R)
• M10: 4,585,324 km (0.111 R)
• M11: 5,725,111 km (0.115 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 277.6

Radius: 12.1

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 0.98 AU - 1.18 AU

Year: 789 Days

Day: 7.1 Hours

Environment

Temp: -176 °C

Axial Tilt: 14.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 90,266,025 km

• M1: 150,645 km (0.092 R)
• M2: 552,315 km (0.103 R)
• M3: 937,829 km (0.116 R)
• M4: 1,479,673 km (0.099 R)
• M5: 1,933,552 km (0.093 R)
• M6: 3,269,461 km (0.093 R)
• M7: 4,276,106 km (0.041 R)
• M8: 4,859,687 km (0.056 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 736.3

Radius: 8.7

Gravity: 9.73 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 1.36 AU - 1.86 AU

Year: 1436 Days

Day: 14.5 Hours

Environment

Temp: -197 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 90,266,025 km

• M1: 108,159 km (0.083 R)
• M2: 423,960 km (0.036 R)
• M3: 795,711 km (0.115 R)
• M4: 1,076,656 km (0.093 R)
• M5: 1,349,822 km (0.087 R)
• M6: 2,199,687 km (0.037 R)
• M7: 2,647,284 km (0.055 R)
• M8: 3,124,950 km (0.12 R)
• M9: 4,289,270 km (0.1 R)
• M10: 4,828,122 km (0.072 R)
• M11: 5,135,097 km (0.097 R)
• M12: 8,603,523 km (0.077 R)
• M13: 10,040,859 km (0.109 R)
• M14: 11,851,143 km (0.105 R)
• M15: 12,297,992 km (0.111 R)
• M16: 13,225,349 km (0.112 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 999.9

Radius: 8.7

Gravity: 13.21 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.62 AU - 2.12 AU

Year: 1798 Days

Day: 13.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 19.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 90,266,025 km

• M1: 108,159 km (0.118 R)
• M2: 545,583 km (0.103 R)
• M3: 1,329,327 km (0.034 R)
• M4: 1,750,744 km (0.082 R)
• M5: 2,170,366 km (0.118 R)
• M6: 3,002,878 km (0.098 R)
• M7: 3,345,906 km (0.096 R)
• M8: 5,078,549 km (0.038 R)
• M9: 5,495,777 km (0.098 R)
• M10: 5,910,612 km (0.105 R)
• M11: 6,830,788 km (0.118 R)
• M12: 8,561,187 km (0.062 R)
• M13: 9,085,976 km (0.101 R)
• M14: 9,632,009 km (0.119 R)
• M15: 9,984,311 km (0.082 R)
• M16: 11,519,335 km (0.077 R)
• M17: 12,446,393 km (0.106 R)
• M18: 13,335,304 km (0.088 R)
• M19: 14,356,908 km (0.035 R)
• M20: 15,097,866 km (0.108 R)
• M21: 15,912,726 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 363.2

Radius: 12

Gravity: 2.52 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 4.9 AU - 5.9 AU

Year: 8821 Days

Day: 6.6 Hours

Environment

Temp: -220 °C

Axial Tilt: 36.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 90,266,025 km

• M1: 149,448 km (0.119 R)
• M2: 527,632 km (0.063 R)
• M3: 1,042,996 km (0.111 R)
• M4: 1,570,628 km (0.109 R)
• M5: 2,306,051 km (0.079 R)
• M6: 3,430,578 km (0.057 R)
• M7: 3,981,398 km (0.077 R)
• M8: 4,564,231 km (0.1 R)
• M9: 5,499,367 km (0.087 R)
• M10: 6,422,835 km (0.115 R)
• M11: 7,046,359 km (0.106 R)
• M12: 7,901,311 km (0.075 R)
• M13: 8,907,805 km (0.116 R)
• M14: 10,043,253 km (0.109 R)
• M15: 10,645,983 km (0.103 R)
• M16: 12,232,917 km (0.112 R)
• M17: 12,653,138 km (0.031 R)
• M18: 14,606,437 km (0.098 R)
• M19: 18,206,061 km (0.051 R)
• M20: 21,134,589 km (0.098 R)
• M21: 24,281,530 km (0.093 R)
• M22: 25,114,491 km (0.09 R)
• M23: 29,380,723 km (0.07 R)

Planet 6 - Ice Giant

Semi-Major Axis: 5.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 797.7

Radius: 5.8

Gravity: 23.71 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 5.06 AU - 6.84 AU

Year: 10202 Days

Day: 18 Hours

Environment

Temp: -223 °C

Axial Tilt: 34.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 90,266,025 km

• M1: 92,003 km (0.098 R)
• M2: 336,296 km (0.117 R)
• M3: 551,567 km (0.115 R)
• M4: 1,065,436 km (0.108 R)
• M5: 1,303,895 km (0.093 R)
• M6: 1,534,425 km (0.06 R)
• M7: 2,784,914 km (0.109 R)
• M8: 3,615,182 km (0.104 R)
• M9: 5,506,997 km (0.081 R)
• M10: 6,224,468 km (0.034 R)
• M11: 7,456,855 km (0.092 R)
• M12: 10,660,344 km (0.112 R)
• M13: 11,542,224 km (0.053 R)
• M14: 11,942,996 km (0.107 R)
• M15: 13,016,212 km (0.076 R)
• M16: 13,702,716 km (0.119 R)
• M17: 14,744,217 km (0.051 R)
• M18: 15,837,328 km (0.108 R)
• M19: 18,260,664 km (0.082 R)
• M20: 18,804,752 km (0.073 R)
• M21: 19,120,403 km (0.118 R)
• M22: 19,762,477 km (0.076 R)
• M23: 20,920,365 km (0.11 R)
• M24: 21,174,382 km (0.028 R)
• M25: 22,919,890 km (0.075 R)
• M26: 26,397,891 km (0.025 R)
• M27: 27,800,819 km (0.095 R)
• M28: 29,252,667 km (0.072 R)
• M29: 31,524,011 km (0.114 R)
• M30: 33,101,970 km (0.048 R)
• M31: 36,905,047 km (0.059 R)
• M32: 39,424,125 km (0.113 R)
• M33: 43,551,531 km (0.119 R)
• M34: 44,382,397 km (0.07 R)
• M35: 45,790,412 km (0.092 R)
• M36: 49,590,348 km (0.112 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.34 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 837.5

Radius: 7.8

Gravity: 13.77 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 8.96 AU - 11.72 AU

Year: 23372 Days

Day: 17.9 Hours

Environment

Temp: -237 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 90,266,025 km

• M1: 96,939 km (0.09 R)
• M2: 395,238 km (0.081 R)
• M3: 686,654 km (0.116 R)
• M4: 944,112 km (0.083 R)
• M5: 1,343,538 km (0.073 R)
• M6: 1,681,779 km (0.074 R)
• M7: 4,481,653 km (0.101 R)
• M8: 5,282,899 km (0.09 R)
• M9: 5,654,052 km (0.094 R)
• M10: 6,131,418 km (0.088 R)
• M11: 6,588,440 km (0.108 R)
• M12: 7,725,683 km (0.099 R)
• M13: 9,104,676 km (0.077 R)
• M14: 9,578,602 km (0.081 R)
• M15: 10,770,448 km (0.101 R)
• M16: 11,503,927 km (0.057 R)
• M17: 21,483,002 km (0.071 R)
• M18: 22,643,433 km (0.069 R)
• M19: 26,020,306 km (0.032 R)
• M20: 27,095,316 km (0.071 R)
• M21: 30,106,422 km (0.084 R)
• M22: 30,497,770 km (0.11 R)
• M23: 31,962,183 km (0.116 R)
• M24: 35,174,349 km (0.107 R)
• M25: 37,833,601 km (0.11 R)
• M26: 38,902,926 km (0.092 R)
• M27: 40,149,675 km (0.091 R)
• M28: 52,403,536 km (0.069 R)
• M29: 53,923,151 km (0.11 R)
• M30: 60,089,874 km (0.101 R)
• M31: 63,877,842 km (0.06 R)
• M32: 77,895,013 km (0.068 R)
• M33: 81,883,891 km (0.092 R)
• M34: 87,853,294 km (0.076 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 454 - 12,531 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit