🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.98

Radius: 1.31

Gravity: 1.15 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 0.57 AU - 0.63 AU

Year: 300 Days

Day: 33.1 Hours

Environment

Temp: -135 °C

Axial Tilt: 33.8 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 441

Radius: 12.1

Gravity: 3.01 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.79 AU - 0.99 AU

Year: 542 Days

Day: 11.2 Hours

Environment

Temp: -155 °C

Axial Tilt: 6.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 75,936,841 km

• M1: 150,495 km (0.086 R)
• M2: 569,519 km (0.066 R)
• M3: 1,040,304 km (0.108 R)
• M4: 1,423,723 km (0.109 R)
• M5: 1,943,426 km (0.089 R)
• M6: 2,416,754 km (0.098 R)
• M7: 3,064,662 km (0.114 R)
• M8: 4,693,932 km (0.11 R)
• M9: 5,073,313 km (0.109 R)
• M10: 5,473,038 km (0.11 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 614.7

Radius: 12.5

Gravity: 3.93 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 1.73 AU - 1.87 AU

Year: 1559 Days

Day: 7.8 Hours

Environment

Temp: -183 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 75,936,841 km

• M1: 155,582 km (0.071 R)
• M2: 577,149 km (0.111 R)
• M3: 1,129,314 km (0.067 R)
• M4: 1,628,672 km (0.032 R)
• M5: 2,093,024 km (0.09 R)
• M6: 2,620,057 km (0.052 R)
• M7: 3,465,734 km (0.118 R)
• M8: 3,978,705 km (0.105 R)
• M9: 4,523,391 km (0.078 R)
• M10: 5,347,825 km (0.048 R)
• M11: 6,413,710 km (0.109 R)
• M12: 7,322,068 km (0.086 R)
• M13: 8,812,960 km (0.064 R)
• M14: 10,497,731 km (0.111 R)
• M15: 10,907,330 km (0.087 R)
• M16: 12,051,904 km (0.07 R)
• M17: 13,275,165 km (0.099 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 560.1

Radius: 12.6

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 2 AU - 2.42 AU

Year: 2121 Days

Day: 10.9 Hours

Environment

Temp: -183 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 75,936,841 km

• M1: 156,629 km (0.057 R)
• M2: 734,376 km (0.117 R)
• M3: 1,465,012 km (0.035 R)
• M4: 2,811,842 km (0.117 R)
• M5: 5,479,022 km (0.1 R)
• M6: 6,048,840 km (0.058 R)
• M7: 7,196,406 km (0.115 R)
• M8: 8,391,543 km (0.111 R)
• M9: 8,988,588 km (0.119 R)
• M10: 9,782,953 km (0.076 R)
• M11: 10,338,260 km (0.045 R)
• M12: 11,360,462 km (0.111 R)
• M13: 13,436,432 km (0.083 R)
• M14: 14,166,769 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 484

Radius: 10.5

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.043

Orbit Range: 2.99 AU - 3.25 AU

Year: 3558 Days

Day: 8.3 Hours

Environment

Temp: -214 °C

Axial Tilt: 82.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 75,936,841 km

• M1: 130,599 km (0.116 R)
• M2: 613,501 km (0.039 R)
• M3: 1,036,264 km (0.116 R)
• M4: 2,072,230 km (0.111 R)
• M5: 2,591,634 km (0.09 R)
• M6: 3,637,023 km (0.109 R)
• M7: 4,139,223 km (0.085 R)
• M8: 5,901,486 km (0.083 R)
• M9: 8,017,399 km (0.066 R)
• M10: 8,870,256 km (0.049 R)
• M11: 9,447,106 km (0.038 R)
• M12: 10,280,964 km (0.098 R)
• M13: 10,675,902 km (0.119 R)
• M14: 11,040,024 km (0.107 R)
• M15: 11,835,884 km (0.08 R)
• M16: 12,313,850 km (0.081 R)
• M17: 12,804,680 km (0.097 R)
• M18: 13,683,268 km (0.07 R)
• M19: 15,819,526 km (0.06 R)
• M20: 18,514,532 km (0.105 R)
• M21: 21,056,648 km (0.104 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 810.2

Radius: 6.6

Gravity: 18.6 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 5.43 AU - 7.15 AU

Year: 10186 Days

Day: 17 Hours

Environment

Temp: -228 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 75,936,841 km

• M1: 82,129 km (0.06 R)
• M2: 422,464 km (0.104 R)
• M3: 705,504 km (0.116 R)
• M4: 1,344,586 km (0.101 R)
• M5: 1,653,206 km (0.101 R)
• M6: 1,890,019 km (0.108 R)
• M7: 2,095,866 km (0.072 R)
• M8: 2,783,867 km (0.069 R)
• M9: 3,587,507 km (0.072 R)
• M10: 4,098,982 km (0.068 R)
• M11: 4,750,929 km (0.113 R)
• M12: 5,783,753 km (0.049 R)
• M13: 6,221,177 km (0.096 R)
• M14: 7,244,576 km (0.115 R)
• M15: 7,927,640 km (0.107 R)
• M16: 9,128,013 km (0.111 R)
• M17: 9,924,323 km (0.103 R)
• M18: 11,315,733 km (0.104 R)
• M19: 12,233,815 km (0.055 R)
• M20: 17,133,743 km (0.078 R)
• M21: 18,653,059 km (0.052 R)
• M22: 20,425,644 km (0.101 R)
• M23: 26,412,850 km (0.071 R)
• M24: 30,017,411 km (0.085 R)
• M25: 38,946,310 km (0.11 R)
• M26: 42,096,093 km (0.095 R)
• M27: 43,457,134 km (0.108 R)
• M28: 44,148,576 km (0.096 R)
• M29: 44,847,198 km (0.101 R)
• M30: 46,266,732 km (0.086 R)
• M31: 49,644,801 km (0.071 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.76 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 494.8

Radius: 4.4

Gravity: 25.56 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 5.74 AU - 7.78 AU

Year: 11348 Days

Day: 18.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 13.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 75,936,841 km

• M1: 54,753 km (0.041 R)
• M2: 385,514 km (0.109 R)
• M3: 572,960 km (0.074 R)
• M4: 954,285 km (0.09 R)
• M5: 1,125,275 km (0.057 R)
• M6: 1,543,551 km (0.114 R)
• M7: 2,599,113 km (0.048 R)
• M8: 4,063,228 km (0.103 R)
• M9: 4,515,462 km (0.119 R)
• M10: 4,845,475 km (0.09 R)
• M11: 5,587,032 km (0.086 R)
• M12: 6,817,773 km (0.104 R)
• M13: 7,455,060 km (0.079 R)
• M14: 8,801,591 km (0.07 R)
• M15: 10,149,916 km (0.033 R)
• M16: 11,139,656 km (0.087 R)
• M17: 12,021,685 km (0.047 R)
• M18: 12,421,859 km (0.108 R)
• M19: 12,595,991 km (0.092 R)
• M20: 18,161,630 km (0.04 R)
• M21: 20,329,154 km (0.06 R)
• M22: 22,490,843 km (0.066 R)
• M23: 23,185,576 km (0.111 R)
• M24: 24,526,571 km (0.104 R)
• M25: 27,166,674 km (0.032 R)
• M26: 27,755,940 km (0.068 R)
• M27: 28,153,571 km (0.116 R)
• M28: 28,858,626 km (0.12 R)
• M29: 29,266,579 km (0.116 R)
• M30: 31,796,279 km (0.06 R)
• M31: 35,390,667 km (0.093 R)
• M32: 40,761,979 km (0.102 R)
• M33: 45,266,371 km (0.064 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 722.5

Radius: 6.9

Gravity: 15.18 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 7.92 AU - 11.42 AU

Year: 19416 Days

Day: 23.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 41.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 75,936,841 km

• M1: 86,916 km (0.086 R)
• M2: 321,935 km (0.088 R)
• M3: 729,738 km (0.039 R)
• M4: 1,449,903 km (0.078 R)
• M5: 1,680,582 km (0.074 R)
• M6: 1,897,799 km (0.075 R)
• M7: 2,594,625 km (0.086 R)
• M8: 3,804,573 km (0.102 R)
• M9: 4,117,831 km (0.099 R)
• M10: 4,585,175 km (0.094 R)
• M11: 6,200,981 km (0.095 R)
• M12: 7,712,219 km (0.099 R)
• M13: 8,163,705 km (0.084 R)
• M14: 8,739,208 km (0.101 R)
• M15: 8,955,078 km (0.116 R)
• M16: 9,510,385 km (0.084 R)
• M17: 13,406,512 km (0.088 R)
• M18: 14,430,659 km (0.081 R)
• M19: 16,551,658 km (0.068 R)
• M20: 18,338,754 km (0.104 R)
• M21: 19,324,305 km (0.063 R)
• M22: 20,534,253 km (0.1 R)
• M23: 26,438,581 km (0.12 R)
• M24: 28,515,149 km (0.104 R)
• M25: 29,958,470 km (0.052 R)
• M26: 32,213,657 km (0.112 R)
• M27: 33,382,615 km (0.108 R)
• M28: 34,984,808 km (0.117 R)
• M29: 35,942,833 km (0.083 R)
• M30: 44,563,111 km (0.074 R)
• M31: 45,043,021 km (0.081 R)
• M32: 48,331,332 km (0.053 R)
• M33: 53,738,846 km (0.046 R)
• M34: 57,812,097 km (0.109 R)
• M35: 66,566,714 km (0.05 R)
• M36: 68,248,045 km (0.061 R)
• M37: 68,672,603 km (0.059 R)
• M38: 72,574,415 km (0.113 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 405 - 19,708 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit