🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 477.7

Radius: 9.4

Gravity: 5.41 G

Time & Orbit

Eccentricity (e): 0.231

Orbit Range: 0.45 AU - 0.71 AU

Year: 305 Days

Day: 9.8 Hours

Environment

Temp: -149 °C

Axial Tilt: 28.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 28,589,650 km

• M1: 116,836 km (0.072 R)
• M2: 430,842 km (0.094 R)
• M3: 737,667 km (0.067 R)
• M4: 1,139,487 km (0.085 R)
• M5: 2,339,860 km (0.067 R)
• M6: 2,744,373 km (0.095 R)
• M7: 3,349,347 km (0.106 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 742.5

Radius: 11.2

Gravity: 5.92 G

Time & Orbit

Eccentricity (e): 0.219

Orbit Range: 0.62 AU - 0.96 AU

Year: 485 Days

Day: 14.1 Hours

Environment

Temp: -157 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 28,589,650 km

• M1: 139,276 km (0.106 R)
• M2: 499,208 km (0.112 R)
• M3: 892,950 km (0.103 R)
• M4: 1,461,721 km (0.051 R)
• M5: 1,818,661 km (0.043 R)
• M6: 2,393,566 km (0.11 R)
• M7: 2,756,341 km (0.048 R)
• M8: 4,115,288 km (0.105 R)
• M9: 4,809,422 km (0.057 R)
• M10: 5,494,131 km (0.111 R)
• M11: 5,949,956 km (0.119 R)
• M12: 6,411,765 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 223.2

Radius: 11.9

Gravity: 1.58 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 0.76 AU - 0.86 AU

Year: 503 Days

Day: 13.7 Hours

Environment

Temp: -174 °C

Axial Tilt: 0.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 28,589,650 km

• M1: 148,251 km (0.088 R)
• M2: 546,780 km (0.082 R)
• M3: 1,169,257 km (0.113 R)
• M4: 1,791,135 km (0.102 R)
• M5: 2,227,064 km (0.057 R)
• M6: 2,761,876 km (0.049 R)
• M7: 3,192,419 km (0.048 R)
• M8: 3,747,576 km (0.101 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 874.5

Radius: 13.6

Gravity: 4.73 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 0.78 AU - 0.98 AU

Year: 570 Days

Day: 13.4 Hours

Environment

Temp: -164 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 28,589,650 km

• M1: 171,738 km (0.044 R)
• M2: 595,549 km (0.092 R)
• M3: 1,168,060 km (0.098 R)
• M4: 1,844,991 km (0.116 R)
• M5: 2,304,854 km (0.034 R)
• M6: 3,474,859 km (0.112 R)
• M7: 4,010,420 km (0.047 R)
• M8: 4,443,954 km (0.106 R)
• M9: 4,909,054 km (0.096 R)
• M10: 6,605,344 km (0.086 R)
• M11: 7,344,059 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 650.6

Radius: 12.7

Gravity: 4.03 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 1.1 AU - 1.44 AU

Year: 988 Days

Day: 8.7 Hours

Environment

Temp: -186 °C

Axial Tilt: 46.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 28,589,650 km

• M1: 157,975 km (0.114 R)
• M2: 639,830 km (0.041 R)
• M3: 1,061,098 km (0.116 R)
• M4: 1,658,592 km (0.072 R)
• M5: 2,854,776 km (0.108 R)
• M6: 4,289,121 km (0.114 R)
• M7: 6,223,122 km (0.095 R)
• M8: 8,002,140 km (0.093 R)
• M9: 9,344,033 km (0.1 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 481.3

Radius: 9.5

Gravity: 5.33 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 1.91 AU - 2.47 AU

Year: 2237 Days

Day: 6.6 Hours

Environment

Temp: -199 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 28,589,650 km

• M1: 118,182 km (0.034 R)
• M2: 547,379 km (0.099 R)
• M3: 1,138,141 km (0.047 R)
• M4: 2,531,645 km (0.111 R)
• M5: 2,974,155 km (0.1 R)
• M6: 3,351,740 km (0.112 R)
• M7: 3,673,077 km (0.055 R)
• M8: 4,222,849 km (0.072 R)
• M9: 4,598,788 km (0.087 R)
• M10: 5,260,310 km (0.113 R)
• M11: 5,602,590 km (0.066 R)
• M12: 6,081,901 km (0.061 R)
• M13: 6,745,966 km (0.104 R)
• M14: 7,316,832 km (0.068 R)
• M15: 7,978,653 km (0.067 R)
• M16: 8,462,303 km (0.117 R)
• M17: 9,859,397 km (0.104 R)
• M18: 10,451,954 km (0.112 R)
• M19: 10,921,093 km (0.057 R)
• M20: 11,747,023 km (0.108 R)
• M21: 13,104,325 km (0.106 R)
• M22: 13,480,563 km (0.05 R)
• M23: 15,286,359 km (0.047 R)

Planet 7 - Gas Giant

Semi-Major Axis: 2.46 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 238.7

Radius: 12.1

Gravity: 1.63 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 2.35 AU - 2.57 AU

Year: 2663 Days

Day: 14.7 Hours

Environment

Temp: -204 °C

Axial Tilt: 32.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 28,589,650 km

• M1: 151,842 km (0.118 R)
• M2: 717,621 km (0.068 R)
• M3: 1,256,323 km (0.117 R)
• M4: 3,045,214 km (0.105 R)
• M5: 3,926,196 km (0.039 R)
• M6: 4,609,410 km (0.097 R)
• M7: 5,010,930 km (0.107 R)
• M8: 6,654,712 km (0.112 R)
• M9: 8,220,553 km (0.103 R)
• M10: 9,627,371 km (0.083 R)
• M11: 10,152,459 km (0.049 R)
• M12: 10,940,840 km (0.107 R)
• M13: 12,105,161 km (0.082 R)

Planet 8 - Gas Giant

Semi-Major Axis: 3.98 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 918.1

Radius: 8.1

Gravity: 13.99 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 3.09 AU - 4.87 AU

Year: 5481 Days

Day: 5.8 Hours

Environment

Temp: -218 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 28,589,650 km

• M1: 100,829 km (0.06 R)
• M2: 600,935 km (0.1 R)
• M3: 867,219 km (0.059 R)
• M4: 1,162,375 km (0.083 R)
• M5: 1,991,746 km (0.091 R)
• M6: 3,046,112 km (0.118 R)
• M7: 3,513,605 km (0.066 R)
• M8: 4,619,133 km (0.05 R)
• M9: 5,207,651 km (0.056 R)
• M10: 6,199,635 km (0.119 R)
• M11: 6,671,167 km (0.082 R)
• M12: 7,877,525 km (0.087 R)
• M13: 8,717,068 km (0.077 R)
• M14: 9,094,803 km (0.072 R)
• M15: 12,154,378 km (0.078 R)
• M16: 12,520,145 km (0.057 R)
• M17: 13,273,669 km (0.044 R)
• M18: 13,943,419 km (0.102 R)
• M19: 19,347,193 km (0.066 R)
• M20: 21,394,739 km (0.036 R)
• M21: 23,421,342 km (0.055 R)
• M22: 23,825,256 km (0.106 R)
• M23: 26,521,459 km (0.091 R)
• M24: 27,672,465 km (0.097 R)
• M25: 33,317,989 km (0.099 R)
• M26: 34,241,606 km (0.068 R)
• M27: 34,657,488 km (0.027 R)

Planet 9 - Gas Giant

Semi-Major Axis: 4.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 466.1

Radius: 10.1

Gravity: 4.57 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 4.03 AU - 4.03 AU

Year: 5584 Days

Day: 7.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 148.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 28,589,650 km

• M1: 126,560 km (0.073 R)
• M2: 614,398 km (0.085 R)
• M3: 1,544,149 km (0.115 R)
• M4: 2,160,044 km (0.086 R)
• M5: 2,684,983 km (0.101 R)
• M6: 3,536,194 km (0.059 R)
• M7: 6,121,395 km (0.092 R)
• M8: 7,008,361 km (0.109 R)
• M9: 12,819,042 km (0.086 R)
• M10: 13,842,141 km (0.074 R)
• M11: 15,705,233 km (0.086 R)
• M12: 18,934,004 km (0.063 R)
• M13: 21,153,737 km (0.119 R)
• M14: 21,716,973 km (0.082 R)
• M15: 23,616,866 km (0.082 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 523 - 15,509 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit