🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 102.7

Radius: 10.3

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 0.71 AU - 0.97 AU

Year: 489 Days

Day: 14.2 Hours

Environment

Temp: -139 °C

Axial Tilt: 42.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 80,459,311 km

• M1: 128,355 km (0.106 R)
• M2: 464,202 km (0.108 R)
• M3: 791,373 km (0.102 R)
• M4: 1,311,824 km (0.115 R)
• M5: 1,877,304 km (0.099 R)
• M6: 2,250,550 km (0.104 R)
• M7: 2,607,491 km (0.028 R)
• M8: 2,993,304 km (0.079 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 247.4

Radius: 10.8

Gravity: 2.12 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 0.81 AU - 1.07 AU

Year: 579 Days

Day: 7.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 76 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 80,459,311 km

• M1: 134,339 km (0.116 R)
• M2: 472,280 km (0.1 R)
• M3: 810,222 km (0.082 R)
• M4: 1,225,655 km (0.081 R)
• M5: 1,915,750 km (0.084 R)
• M6: 2,469,113 km (0.093 R)
• M7: 3,021,578 km (0.112 R)
• M8: 3,389,289 km (0.087 R)
• M9: 4,334,598 km (0.082 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 702.5

Radius: 10.6

Gravity: 6.25 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 0.94 AU - 1.46 AU

Year: 836 Days

Day: 7.1 Hours

Environment

Temp: -158 °C

Axial Tilt: 48.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 80,459,311 km

• M1: 132,394 km (0.078 R)
• M2: 600,785 km (0.072 R)
• M3: 1,139,188 km (0.059 R)
• M4: 1,630,766 km (0.071 R)
• M5: 2,334,325 km (0.117 R)
• M6: 3,021,129 km (0.078 R)
• M7: 3,646,149 km (0.116 R)
• M8: 4,504,392 km (0.109 R)
• M9: 5,434,591 km (0.091 R)
• M10: 5,804,996 km (0.111 R)
• M11: 7,649,089 km (0.057 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 856.2

Radius: 14.5

Gravity: 4.07 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 1.56 AU - 2.38 AU

Year: 1758 Days

Day: 6.3 Hours

Environment

Temp: -191 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 80,459,311 km

• M1: 180,265 km (0.111 R)
• M2: 826,977 km (0.079 R)
• M3: 1,650,214 km (0.075 R)
• M4: 2,123,841 km (0.111 R)
• M5: 2,831,738 km (0.117 R)
• M6: 3,817,289 km (0.1 R)
• M7: 4,400,571 km (0.108 R)
• M8: 5,699,978 km (0.12 R)
• M9: 6,388,128 km (0.08 R)
• M10: 7,131,330 km (0.068 R)
• M11: 8,231,473 km (0.082 R)
• M12: 10,020,813 km (0.11 R)
• M13: 10,804,706 km (0.09 R)
• M14: 12,415,127 km (0.096 R)
• M15: 13,277,858 km (0.087 R)
• M16: 14,136,550 km (0.109 R)
• M17: 15,123,447 km (0.103 R)
• M18: 16,107,801 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 263.8

Radius: 9.8

Gravity: 2.75 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 3.13 AU - 4.41 AU

Year: 4654 Days

Day: 8.9 Hours

Environment

Temp: -205 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 80,459,311 km

• M1: 121,922 km (0.112 R)
• M2: 522,695 km (0.104 R)
• M3: 1,754,334 km (0.087 R)
• M4: 2,678,101 km (0.078 R)
• M5: 3,529,762 km (0.101 R)
• M6: 4,163,458 km (0.092 R)
• M7: 5,353,210 km (0.073 R)
• M8: 5,919,737 km (0.115 R)
• M9: 6,785,161 km (0.06 R)
• M10: 8,389,598 km (0.087 R)
• M11: 8,801,142 km (0.081 R)
• M12: 9,664,920 km (0.065 R)
• M13: 10,426,972 km (0.098 R)
• M14: 10,862,900 km (0.096 R)
• M15: 12,113,987 km (0.11 R)
• M16: 12,551,561 km (0.093 R)
• M17: 13,227,743 km (0.1 R)
• M18: 15,351,883 km (0.118 R)
• M19: 16,020,586 km (0.119 R)
• M20: 16,978,610 km (0.047 R)
• M21: 20,881,469 km (0.068 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 90.1

Radius: 11.6

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 3.88 AU - 4.02 AU

Year: 4991 Days

Day: 5.7 Hours

Environment

Temp: -214 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 80,459,311 km

• M1: 146,456 km (0.086 R)
• M2: 614,698 km (0.032 R)
• M3: 978,071 km (0.05 R)
• M4: 1,465,311 km (0.09 R)
• M5: 2,243,968 km (0.068 R)
• M6: 3,312,845 km (0.051 R)
• M7: 5,179,377 km (0.051 R)
• M8: 11,594,583 km (0.119 R)
• M9: 12,053,549 km (0.034 R)
• M10: 14,533,134 km (0.114 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.06 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 725.9

Radius: 11.2

Gravity: 5.79 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 3.35 AU - 4.77 AU

Year: 5201 Days

Day: 7 Hours

Environment

Temp: -204 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 80,459,311 km

• M1: 176,825 km (0.051 R)
• M2: 922,720 km (0.066 R)
• M3: 1,301,202 km (0.093 R)
• M4: 1,852,321 km (0.065 R)
• M5: 2,454,003 km (0.072 R)
• M6: 2,912,222 km (0.103 R)
• M7: 3,818,785 km (0.032 R)
• M8: 5,205,108 km (0.077 R)
• M9: 6,536,529 km (0.104 R)
• M10: 8,982,006 km (0.099 R)
• M11: 11,641,407 km (0.063 R)
• M12: 12,481,549 km (0.073 R)
• M13: 14,007,297 km (0.114 R)
• M14: 16,371,692 km (0.104 R)
• M15: 17,872,906 km (0.088 R)
• M16: 21,003,840 km (0.112 R)
• M17: 21,364,820 km (0.079 R)
• M18: 23,002,468 km (0.083 R)
• M19: 24,722,395 km (0.026 R)
• M20: 29,036,648 km (0.101 R)
• M21: 29,937,675 km (0.058 R)
• M22: 30,579,450 km (0.089 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 162.9

Radius: 7.9

Gravity: 2.61 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 6.5 AU - 9.34 AU

Year: 14172 Days

Day: 16.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 80,459,311 km

• M1: 99,034 km (0.108 R)
• M2: 379,679 km (0.074 R)
• M3: 1,991,148 km (0.118 R)
• M4: 2,749,908 km (0.11 R)
• M5: 3,928,739 km (0.098 R)
• M6: 4,825,728 km (0.09 R)
• M7: 7,091,986 km (0.078 R)
• M8: 8,455,870 km (0.068 R)
• M9: 8,961,361 km (0.118 R)
• M10: 10,125,831 km (0.068 R)
• M11: 11,237,194 km (0.082 R)
• M12: 16,632,441 km (0.114 R)
• M13: 22,326,435 km (0.109 R)
• M14: 26,709,952 km (0.03 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 649.7

Radius: 4.2

Gravity: 36.83 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 9.02 AU - 11.4 AU

Year: 20743 Days

Day: 24.3 Hours

Environment

Temp: -240 °C

Axial Tilt: 44.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 80,459,311 km

• M1: 52,658 km (0.11 R)
• M2: 262,245 km (0.086 R)
• M3: 408,701 km (0.067 R)
• M4: 594,053 km (0.098 R)
• M5: 750,981 km (0.113 R)
• M6: 1,899,893 km (0.1 R)
• M7: 2,160,642 km (0.109 R)
• M8: 2,828,148 km (0.118 R)
• M9: 3,007,964 km (0.117 R)
• M10: 4,805,682 km (0.077 R)
• M11: 6,707,071 km (0.112 R)
• M12: 7,406,142 km (0.101 R)
• M13: 9,113,053 km (0.061 R)
• M14: 9,793,873 km (0.07 R)
• M15: 10,206,165 km (0.098 R)
• M16: 10,630,125 km (0.096 R)
• M17: 10,877,560 km (0.112 R)
• M18: 14,302,903 km (0.083 R)
• M19: 15,142,446 km (0.096 R)
• M20: 15,298,477 km (0.103 R)
• M21: 18,650,815 km (0.066 R)
• M22: 21,959,172 km (0.089 R)
• M23: 22,461,671 km (0.041 R)
• M24: 25,307,921 km (0.119 R)
• M25: 31,196,691 km (0.118 R)
• M26: 42,103,423 km (0.093 R)
• M27: 44,296,827 km (0.087 R)
• M28: 46,400,921 km (0.088 R)
• M29: 46,565,479 km (0.066 R)
• M30: 47,728,153 km (0.042 R)
• M31: 48,064,001 km (0.11 R)
• M32: 52,394,560 km (0.051 R)
• M33: 54,197,364 km (0.064 R)
• M34: 56,040,858 km (0.06 R)
• M35: 59,658,135 km (0.105 R)
• M36: 61,424,587 km (0.119 R)
• M37: 66,932,780 km (0.107 R)
• M38: 67,775,764 km (0.052 R)
• M39: 71,876,990 km (0.095 R)
• M40: 72,097,347 km (0.084 R)
• M41: 75,456,418 km (0.1 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.3 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 733.4

Radius: 6.5

Gravity: 17.36 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 8.58 AU - 12.02 AU

Year: 21018 Days

Day: 19.8 Hours

Environment

Temp: -235 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 80,459,311 km

• M1: 81,531 km (0.096 R)
• M2: 391,946 km (0.103 R)
• M3: 640,877 km (0.087 R)
• M4: 1,219,971 km (0.105 R)
• M5: 2,475,396 km (0.077 R)
• M6: 3,239,991 km (0.106 R)
• M7: 4,119,327 km (0.084 R)
• M8: 4,422,113 km (0.095 R)
• M9: 5,499,816 km (0.09 R)
• M10: 5,993,489 km (0.105 R)
• M11: 6,294,779 km (0.092 R)
• M12: 9,888,868 km (0.091 R)
• M13: 11,317,677 km (0.054 R)
• M14: 13,020,849 km (0.105 R)
• M15: 14,501,270 km (0.111 R)
• M16: 14,966,369 km (0.115 R)
• M17: 16,338,331 km (0.083 R)
• M18: 21,549,124 km (0.081 R)
• M19: 24,147,639 km (0.102 R)
• M20: 25,803,090 km (0.092 R)
• M21: 27,064,050 km (0.059 R)
• M22: 33,585,171 km (0.078 R)
• M23: 35,365,086 km (0.031 R)
• M24: 36,066,102 km (0.099 R)
• M25: 36,348,991 km (0.104 R)
• M26: 40,467,720 km (0.074 R)
• M27: 43,433,199 km (0.099 R)
• M28: 61,252,699 km (0.098 R)
• M29: 64,525,451 km (0.104 R)
• M30: 68,561,003 km (0.115 R)
• M31: 69,431,513 km (0.056 R)
• M32: 71,640,027 km (0.061 R)
• M33: 78,071,987 km (0.108 R)
• M34: 78,308,501 km (0.1 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 459 - 14,019 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit