🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 409.4

Radius: 13.8

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.63 AU - 0.71 AU

Year: 366 Days

Day: 12.4 Hours

Environment

Temp: -148 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 45,422,188 km

• M1: 171,589 km (0.085 R)
• M2: 706,252 km (0.11 R)
• M3: 1,190,949 km (0.068 R)
• M4: 1,721,871 km (0.112 R)
• M5: 2,177,846 km (0.112 R)
• M6: 2,920,450 km (0.096 R)
• M7: 3,622,812 km (0.078 R)
• M8: 4,099,281 km (0.049 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 949.8

Radius: 9.7

Gravity: 10.09 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.74 AU - 0.9 AU

Year: 495 Days

Day: 5.1 Hours

Environment

Temp: -168 °C

Axial Tilt: 6.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 45,422,188 km

• M1: 120,576 km (0.069 R)
• M2: 500,405 km (0.078 R)
• M3: 823,985 km (0.12 R)
• M4: 1,659,040 km (0.089 R)
• M5: 2,139,549 km (0.116 R)
• M6: 2,489,458 km (0.075 R)
• M7: 3,182,695 km (0.028 R)
• M8: 3,496,701 km (0.09 R)
• M9: 3,957,013 km (0.087 R)
• M10: 4,411,641 km (0.072 R)
• M11: 6,429,866 km (0.095 R)
• M12: 7,017,786 km (0.117 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 89.9

Radius: 12.1

Gravity: 0.61 G

Time & Orbit

Eccentricity (e): 0.018

Orbit Range: 1.37 AU - 1.43 AU

Year: 1105 Days

Day: 11.6 Hours

Environment

Temp: -195 °C

Axial Tilt: 16.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 45,422,188 km

• M1: 150,495 km (0.078 R)
• M2: 546,182 km (0.079 R)
• M3: 972,237 km (0.095 R)
• M4: 2,204,474 km (0.064 R)
• M5: 2,760,380 km (0.105 R)
• M6: 4,469,835 km (0.065 R)

Planet 4 - Gas Giant

Semi-Major Axis: 4.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 321

Radius: 9.2

Gravity: 3.79 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 4.36 AU - 4.54 AU

Year: 6260 Days

Day: 6.7 Hours

Environment

Temp: -222 °C

Axial Tilt: 125.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 45,422,188 km

• M1: 114,592 km (0.091 R)
• M2: 755,768 km (0.074 R)
• M3: 5,112,358 km (0.12 R)
• M4: 6,092,523 km (0.092 R)
• M5: 9,420,178 km (0.097 R)
• M6: 10,198,685 km (0.114 R)
• M7: 10,755,638 km (0.115 R)
• M8: 11,377,965 km (0.095 R)
• M9: 13,849,472 km (0.111 R)
• M10: 17,131,200 km (0.107 R)
• M11: 18,041,503 km (0.108 R)
• M12: 19,111,876 km (0.039 R)
• M13: 19,826,655 km (0.116 R)
• M14: 21,034,508 km (0.097 R)
• M15: 23,967,972 km (0.118 R)

Planet 5 - Ice Giant

Semi-Major Axis: 6.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 95.9

Radius: 7.2

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.051

Orbit Range: 5.71 AU - 6.33 AU

Year: 9850 Days

Day: 22.6 Hours

Environment

Temp: -229 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 45,422,188 km

• M1: 104,120 km (0.099 R)
• M2: 707,000 km (0.052 R)
• M3: 2,557,824 km (0.098 R)
• M4: 2,855,823 km (0.106 R)
• M5: 3,806,817 km (0.11 R)
• M6: 5,744,409 km (0.038 R)
• M7: 5,997,229 km (0.114 R)
• M8: 8,084,419 km (0.108 R)
• M9: 8,728,437 km (0.058 R)
• M10: 14,177,540 km (0.119 R)
• M11: 21,539,101 km (0.072 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 287.8

Radius: 6.3

Gravity: 7.25 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 7.23 AU - 8.73 AU

Year: 15033 Days

Day: 17.5 Hours

Environment

Temp: -231 °C

Axial Tilt: 6.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 45,422,188 km

• M1: 78,539 km (0.086 R)
• M2: 443,408 km (0.093 R)
• M3: 804,388 km (0.093 R)
• M4: 1,335,610 km (0.098 R)
• M5: 2,933,165 km (0.073 R)
• M6: 3,923,055 km (0.111 R)
• M7: 4,508,730 km (0.066 R)
• M8: 5,087,225 km (0.101 R)
• M9: 5,611,715 km (0.078 R)
• M10: 7,525,521 km (0.115 R)
• M11: 7,776,097 km (0.1 R)
• M12: 8,471,428 km (0.106 R)
• M13: 9,737,924 km (0.053 R)
• M14: 10,237,431 km (0.12 R)
• M15: 12,757,706 km (0.117 R)
• M16: 15,328,396 km (0.092 R)
• M17: 18,001,411 km (0.043 R)
• M18: 20,643,160 km (0.11 R)
• M19: 23,004,113 km (0.059 R)
• M20: 24,522,083 km (0.107 R)
• M21: 26,296,314 km (0.114 R)
• M22: 26,777,121 km (0.101 R)
• M23: 28,962,297 km (0.049 R)
• M24: 42,343,378 km (0.073 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 884.4

Radius: 5

Gravity: 35.38 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 7.86 AU - 12.38 AU

Year: 21468 Days

Day: 22.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 131.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 45,422,188 km

• M1: 62,233 km (0.081 R)
• M2: 239,955 km (0.083 R)
• M3: 611,706 km (0.029 R)
• M4: 1,323,044 km (0.057 R)
• M5: 1,518,418 km (0.087 R)
• M6: 4,566,625 km (0.08 R)
• M7: 5,290,529 km (0.086 R)
• M8: 5,452,244 km (0.096 R)
• M9: 10,526,005 km (0.117 R)
• M10: 13,057,650 km (0.119 R)
• M11: 13,958,828 km (0.1 R)
• M12: 19,378,609 km (0.055 R)
• M13: 21,869,264 km (0.096 R)
• M14: 23,244,966 km (0.061 R)
• M15: 28,824,667 km (0.074 R)
• M16: 29,961,611 km (0.086 R)
• M17: 32,459,297 km (0.065 R)
• M18: 33,138,920 km (0.076 R)
• M19: 58,810,065 km (0.068 R)
• M20: 84,027,030 km (0.094 R)
• M21: 85,822,503 km (0.214 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 107

Radius: 3.6

Gravity: 8.26 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 9.84 AU - 11.56 AU

Year: 23340 Days

Day: 23.2 Hours

Environment

Temp: -233 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 45,422,188 km

• M1: 54,154 km (0.104 R)
• M2: 788,381 km (0.09 R)
• M3: 978,220 km (0.099 R)
• M4: 1,233,584 km (0.098 R)
• M5: 2,269,549 km (0.063 R)
• M6: 3,677,864 km (0.083 R)
• M7: 4,263,091 km (0.082 R)
• M8: 4,908,007 km (0.059 R)
• M9: 5,515,225 km (0.11 R)
• M10: 8,229,080 km (0.114 R)
• M11: 9,748,545 km (0.106 R)
• M12: 10,395,257 km (0.113 R)
• M13: 12,334,793 km (0.087 R)
• M14: 12,679,916 km (0.108 R)
• M15: 12,854,795 km (0.114 R)
• M16: 16,217,307 km (0.084 R)
• M17: 20,519,891 km (0.093 R)
• M18: 22,587,932 km (0.098 R)
• M19: 26,179,029 km (0.073 R)
• M20: 27,423,234 km (0.063 R)
• M21: 28,010,705 km (0.038 R)
• M22: 30,236,123 km (0.106 R)
• M23: 33,902,767 km (0.106 R)
• M24: 34,465,853 km (0.114 R)
• M25: 41,076,434 km (0.093 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 205 - 11,740 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit