🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 638.9

Radius: 10.1

Gravity: 6.26 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 0.64 AU - 0.88 AU

Year: 435 Days

Day: 9.2 Hours

Environment

Temp: -151 °C

Axial Tilt: 43.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 84,253,820 km

• M1: 125,662 km (0.066 R)
• M2: 548,276 km (0.12 R)
• M3: 885,769 km (0.105 R)
• M4: 1,265,299 km (0.064 R)
• M5: 1,631,365 km (0.058 R)
• M6: 2,076,568 km (0.099 R)
• M7: 2,467,617 km (0.096 R)
• M8: 2,854,926 km (0.095 R)
• M9: 3,329,151 km (0.118 R)
• M10: 4,450,237 km (0.118 R)
• M11: 5,089,768 km (0.088 R)
• M12: 5,554,868 km (0.028 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 524.1

Radius: 10.7

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.23

Orbit Range: 0.83 AU - 1.33 AU

Year: 736 Days

Day: 10.8 Hours

Environment

Temp: -169 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 84,253,820 km

• M1: 133,142 km (0.051 R)
• M2: 545,135 km (0.041 R)
• M3: 954,434 km (0.111 R)
• M4: 1,371,812 km (0.093 R)
• M5: 2,025,555 km (0.067 R)
• M6: 3,300,428 km (0.082 R)
• M7: 4,290,766 km (0.095 R)
• M8: 4,946,902 km (0.039 R)
• M9: 6,766,461 km (0.072 R)
• M10: 7,147,936 km (0.116 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 122.3

Radius: 13.1

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 1.11 AU - 1.65 AU

Year: 1063 Days

Day: 6.1 Hours

Environment

Temp: -184 °C

Axial Tilt: 49.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 84,253,820 km

• M1: 162,912 km (0.089 R)
• M2: 634,893 km (0.119 R)
• M3: 1,091,316 km (0.101 R)
• M4: 1,541,008 km (0.097 R)
• M5: 2,000,423 km (0.086 R)
• M6: 2,542,266 km (0.115 R)
• M7: 3,080,669 km (0.102 R)
• M8: 3,570,602 km (0.113 R)
• M9: 5,233,682 km (0.091 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 301.5

Radius: 10.7

Gravity: 2.63 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 1.58 AU - 1.9 AU

Year: 1506 Days

Day: 11.7 Hours

Environment

Temp: -176 °C

Axial Tilt: 48.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 84,253,820 km

• M1: 133,591 km (0.107 R)
• M2: 482,752 km (0.086 R)
• M3: 824,883 km (0.119 R)
• M4: 1,217,876 km (0.09 R)
• M5: 2,182,932 km (0.072 R)
• M6: 2,525,661 km (0.12 R)
• M7: 3,794,251 km (0.092 R)
• M8: 4,534,461 km (0.109 R)
• M9: 5,232,036 km (0.076 R)
• M10: 6,703,032 km (0.076 R)
• M11: 7,783,876 km (0.104 R)
• M12: 8,784,088 km (0.088 R)
• M13: 9,230,039 km (0.103 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 915.1

Radius: 12.6

Gravity: 5.76 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 1.78 AU - 2.64 AU

Year: 2155 Days

Day: 5.5 Hours

Environment

Temp: -194 °C

Axial Tilt: 23.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 84,253,820 km

• M1: 156,779 km (0.116 R)
• M2: 625,319 km (0.061 R)
• M3: 1,034,768 km (0.108 R)
• M4: 1,453,792 km (0.077 R)
• M5: 2,110,676 km (0.033 R)
• M6: 3,022,475 km (0.106 R)
• M7: 3,828,808 km (0.119 R)
• M8: 4,242,147 km (0.076 R)
• M9: 5,067,179 km (0.118 R)
• M10: 6,074,422 km (0.053 R)
• M11: 7,035,887 km (0.045 R)
• M12: 7,660,009 km (0.115 R)
• M13: 8,385,709 km (0.12 R)
• M14: 8,849,612 km (0.114 R)
• M15: 10,011,090 km (0.083 R)
• M16: 10,686,075 km (0.061 R)
• M17: 11,471,614 km (0.066 R)
• M18: 12,337,336 km (0.113 R)
• M19: 13,069,768 km (0.11 R)
• M20: 13,785,294 km (0.073 R)
• M21: 14,292,281 km (0.07 R)
• M22: 15,246,117 km (0.031 R)
• M23: 16,703,799 km (0.047 R)
• M24: 17,600,339 km (0.114 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 78.1

Radius: 8.5

Gravity: 1.08 G

Time & Orbit

Eccentricity (e): 0.169

Orbit Range: 2.03 AU - 2.85 AU

Year: 2500 Days

Day: 13.2 Hours

Environment

Temp: -196 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 84,253,820 km

• M1: 105,766 km (0.097 R)
• M2: 379,979 km (0.063 R)
• M3: 1,120,488 km (0.038 R)
• M4: 2,885,294 km (0.093 R)
• M5: 3,246,872 km (0.096 R)
• M6: 5,510,587 km (0.028 R)
• M7: 7,369,790 km (0.076 R)
• M8: 8,583,776 km (0.045 R)
• M9: 8,926,954 km (0.119 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 639.4

Radius: 5.3

Gravity: 22.76 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 6.07 AU - 6.91 AU

Year: 10846 Days

Day: 17.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 22.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 84,253,820 km

• M1: 65,973 km (0.074 R)
• M2: 388,805 km (0.074 R)
• M3: 577,597 km (0.099 R)
• M4: 1,439,730 km (0.078 R)
• M5: 2,165,280 km (0.09 R)
• M6: 2,447,720 km (0.119 R)
• M7: 2,670,172 km (0.112 R)
• M8: 2,840,415 km (0.117 R)
• M9: 3,777,346 km (0.079 R)
• M10: 4,330,410 km (0.03 R)
• M11: 5,193,290 km (0.101 R)
• M12: 6,463,974 km (0.072 R)
• M13: 7,713,416 km (0.116 R)
• M14: 9,801,652 km (0.118 R)
• M15: 10,157,097 km (0.078 R)
• M16: 12,122,963 km (0.053 R)
• M17: 12,830,860 km (0.104 R)
• M18: 13,072,760 km (0.032 R)
• M19: 14,007,447 km (0.066 R)
• M20: 15,594,232 km (0.119 R)
• M21: 17,966,555 km (0.061 R)
• M22: 20,817,142 km (0.071 R)
• M23: 23,773,346 km (0.051 R)
• M24: 33,263,835 km (0.045 R)
• M25: 44,721,835 km (0.099 R)
• M26: 48,567,697 km (0.084 R)
• M27: 49,008,262 km (0.06 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 169.8

Radius: 3.7

Gravity: 12.4 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 5.85 AU - 9.17 AU

Year: 13501 Days

Day: 21.5 Hours

Environment

Temp: -232 °C

Axial Tilt: 42.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 84,253,820 km

• M1: 103,372 km (0.086 R)
• M2: 220,208 km (0.079 R)
• M3: 371,900 km (0.09 R)
• M4: 1,183,319 km (0.113 R)
• M5: 1,318,705 km (0.04 R)
• M6: 1,451,997 km (0.109 R)
• M7: 3,069,748 km (0.098 R)
• M8: 3,506,424 km (0.068 R)
• M9: 3,983,043 km (0.118 R)
• M10: 4,777,109 km (0.069 R)
• M11: 5,453,441 km (0.096 R)
• M12: 6,777,831 km (0.074 R)
• M13: 7,476,154 km (0.098 R)
• M14: 8,886,114 km (0.108 R)
• M15: 9,057,702 km (0.095 R)
• M16: 9,496,622 km (0.054 R)
• M17: 10,463,922 km (0.091 R)
• M18: 10,946,974 km (0.107 R)
• M19: 12,378,177 km (0.087 R)
• M20: 15,481,884 km (0.053 R)
• M21: 17,079,738 km (0.096 R)
• M22: 18,295,969 km (0.081 R)
• M23: 20,523,930 km (0.117 R)
• M24: 21,203,105 km (0.089 R)
• M25: 24,153,025 km (0.041 R)
• M26: 25,337,092 km (0.12 R)
• M27: 29,026,176 km (0.04 R)
• M28: 29,499,204 km (0.093 R)
• M29: 29,881,277 km (0.108 R)
• M30: 30,850,970 km (0.111 R)
• M31: 34,515,370 km (0.106 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 812.2

Radius: 3.4

Gravity: 70.26 G

Time & Orbit

Eccentricity (e): 0.039

Orbit Range: 9.81 AU - 10.61 AU

Year: 21402 Days

Day: 19 Hours

Environment

Temp: -239 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 84,253,820 km

• M1: 47,722 km (0.07 R)
• M2: 191,485 km (0.05 R)
• M3: 326,423 km (0.074 R)
• M4: 434,432 km (0.115 R)
• M5: 575,503 km (0.047 R)
• M6: 757,264 km (0.102 R)
• M7: 891,005 km (0.095 R)
• M8: 1,609,374 km (0.113 R)
• M9: 1,832,125 km (0.096 R)
• M10: 2,204,175 km (0.101 R)
• M11: 3,352,189 km (0.117 R)
• M12: 3,591,246 km (0.054 R)
• M13: 4,037,048 km (0.086 R)
• M14: 4,239,005 km (0.107 R)
• M15: 5,114,901 km (0.109 R)
• M16: 5,513,130 km (0.091 R)
• M17: 5,803,799 km (0.088 R)
• M18: 11,679,405 km (0.089 R)
• M19: 13,229,089 km (0.089 R)
• M20: 13,599,494 km (0.077 R)
• M21: 13,976,630 km (0.109 R)
• M22: 14,360,947 km (0.118 R)
• M23: 16,643,511 km (0.106 R)
• M24: 16,988,185 km (0.115 R)
• M25: 17,425,609 km (0.057 R)
• M26: 20,700,605 km (0.12 R)
• M27: 28,557,037 km (0.092 R)
• M28: 32,266,466 km (0.046 R)
• M29: 32,667,537 km (0.08 R)
• M30: 35,003,658 km (0.1 R)
• M31: 35,568,988 km (0.068 R)
• M32: 48,717,295 km (0.043 R)
• M33: 51,032,022 km (0.03 R)
• M34: 51,394,498 km (0.104 R)
• M35: 52,308,242 km (0.106 R)
• M36: 53,418,856 km (0.045 R)
• M37: 56,264,208 km (0.117 R)
• M38: 61,228,015 km (0.116 R)
• M39: 61,637,315 km (0.088 R)
• M40: 68,876,804 km (0.04 R)
• M41: 75,717,466 km (0.092 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 252 - 10,433 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit