🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.31 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 568.8

Radius: 8.5

Gravity: 7.87 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 0.57 AU - 0.67 AU

Year: 326 Days

Day: 13.6 Hours

Environment

Temp: -153 °C

Axial Tilt: 31.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 57,125,307 km

• M1: 105,766 km (0.046 R)
• M2: 433,535 km (0.061 R)
• M3: 711,637 km (0.103 R)
• M4: 1,089,671 km (0.112 R)
• M5: 1,449,454 km (0.086 R)
• M6: 1,725,462 km (0.095 R)
• M7: 2,251,747 km (0.113 R)
• M8: 2,607,341 km (0.038 R)
• M9: 3,132,729 km (0.119 R)
• M10: 3,399,163 km (0.087 R)
• M11: 4,460,111 km (0.12 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 174

Radius: 14.5

Gravity: 0.83 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 0.56 AU - 0.7 AU

Year: 333 Days

Day: 13.1 Hours

Environment

Temp: -156 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 57,125,307 km

• M1: 180,265 km (0.112 R)
• M2: 654,939 km (0.113 R)
• M3: 1,116,599 km (0.097 R)
• M4: 1,726,808 km (0.045 R)
• M5: 2,429,170 km (0.103 R)
• M6: 2,944,984 km (0.102 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 635.6

Radius: 9.5

Gravity: 7.04 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 1.08 AU - 1.6 AU

Year: 1034 Days

Day: 14.7 Hours

Environment

Temp: -187 °C

Axial Tilt: 42 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 57,125,307 km

• M1: 118,182 km (0.036 R)
• M2: 461,360 km (0.113 R)
• M3: 784,641 km (0.049 R)
• M4: 1,338,452 km (0.111 R)
• M5: 2,064,301 km (0.075 R)
• M6: 2,592,531 km (0.106 R)
• M7: 3,701,799 km (0.063 R)
• M8: 4,015,057 km (0.082 R)
• M9: 4,431,687 km (0.086 R)
• M10: 5,139,136 km (0.067 R)
• M11: 6,394,411 km (0.091 R)
• M12: 6,963,930 km (0.064 R)
• M13: 7,616,626 km (0.074 R)
• M14: 8,415,778 km (0.091 R)
• M15: 9,269,682 km (0.045 R)
• M16: 10,180,285 km (0.05 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 859.8

Radius: 11.4

Gravity: 6.62 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 2.69 AU - 3.07 AU

Year: 3259 Days

Day: 13.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 22.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 57,125,307 km

• M1: 141,819 km (0.091 R)
• M2: 522,246 km (0.06 R)
• M3: 1,040,752 km (0.098 R)
• M4: 1,405,173 km (0.079 R)
• M5: 1,894,507 km (0.112 R)
• M6: 2,345,545 km (0.106 R)
• M7: 3,849,004 km (0.088 R)
• M8: 4,579,640 km (0.1 R)
• M9: 5,400,483 km (0.109 R)
• M10: 7,141,054 km (0.107 R)
• M11: 16,008,319 km (0.119 R)
• M12: 16,507,676 km (0.104 R)
• M13: 17,654,344 km (0.064 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.35 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 242.6

Radius: 13

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 3.28 AU - 3.42 AU

Year: 4089 Days

Day: 9.2 Hours

Environment

Temp: -205 °C

Axial Tilt: 27.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 57,125,307 km

• M1: 161,715 km (0.111 R)
• M2: 641,924 km (0.083 R)
• M3: 1,277,267 km (0.096 R)
• M4: 1,871,918 km (0.12 R)
• M5: 2,903,395 km (0.073 R)
• M6: 3,850,500 km (0.101 R)
• M7: 4,748,685 km (0.116 R)
• M8: 5,807,240 km (0.052 R)
• M9: 6,219,531 km (0.088 R)
• M10: 6,874,770 km (0.081 R)
• M11: 8,069,160 km (0.115 R)
• M12: 9,967,856 km (0.103 R)
• M13: 10,485,913 km (0.066 R)
• M14: 11,656,516 km (0.099 R)
• M15: 12,526,578 km (0.075 R)
• M16: 13,573,464 km (0.117 R)
• M17: 14,583,548 km (0.088 R)
• M18: 17,593,158 km (0.108 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 621

Radius: 14.2

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 3.83 AU - 6.33 AU

Year: 7635 Days

Day: 9.8 Hours

Environment

Temp: -226 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 57,125,307 km

• M1: 177,124 km (0.105 R)
• M2: 627,862 km (0.044 R)
• M3: 1,348,176 km (0.12 R)
• M4: 2,130,722 km (0.106 R)
• M5: 2,645,489 km (0.039 R)
• M6: 3,180,002 km (0.1 R)
• M7: 4,105,564 km (0.108 R)
• M8: 5,233,981 km (0.117 R)
• M9: 7,024,218 km (0.088 R)
• M10: 7,510,561 km (0.054 R)
• M11: 9,731,192 km (0.1 R)
• M12: 11,067,101 km (0.116 R)
• M13: 12,739,755 km (0.086 R)
• M14: 13,352,059 km (0.107 R)
• M15: 15,431,918 km (0.116 R)
• M16: 16,128,146 km (0.111 R)
• M17: 19,854,330 km (0.095 R)
• M18: 22,716,586 km (0.076 R)
• M19: 26,109,167 km (0.101 R)
• M20: 27,280,967 km (0.108 R)
• M21: 29,343,473 km (0.109 R)
• M22: 34,951,448 km (0.079 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 135.2

Radius: 7.4

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 5.47 AU - 6.25 AU

Year: 9460 Days

Day: 19.6 Hours

Environment

Temp: -235 °C

Axial Tilt: 19.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 57,125,307 km

• M1: 92,302 km (0.091 R)
• M2: 362,176 km (0.106 R)
• M3: 766,240 km (0.112 R)
• M4: 1,925,773 km (0.106 R)
• M5: 2,839,218 km (0.059 R)
• M6: 4,773,668 km (0.088 R)
• M7: 5,881,141 km (0.118 R)
• M8: 6,295,826 km (0.053 R)
• M9: 8,782,143 km (0.054 R)
• M10: 9,128,163 km (0.105 R)
• M11: 11,718,450 km (0.094 R)
• M12: 13,917,539 km (0.086 R)
• M13: 14,923,584 km (0.069 R)
• M14: 15,251,204 km (0.097 R)
• M15: 16,902,465 km (0.095 R)
• M16: 17,258,358 km (0.087 R)
• M17: 17,801,698 km (0.072 R)
• M18: 18,294,174 km (0.068 R)
• M19: 18,732,645 km (0.085 R)
• M20: 18,986,214 km (0.036 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.83 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 435.6

Radius: 3.9

Gravity: 28.64 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 7.34 AU - 8.32 AU

Year: 14611 Days

Day: 23.4 Hours

Environment

Temp: -230 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 57,125,307 km

• M1: 58,343 km (0.071 R)
• M2: 220,358 km (0.06 R)
• M3: 3,366,401 km (0.039 R)
• M4: 4,293,908 km (0.068 R)
• M5: 5,518,665 km (0.088 R)
• M6: 7,677,662 km (0.072 R)
• M7: 8,444,501 km (0.075 R)
• M8: 9,460,719 km (0.1 R)
• M9: 10,828,492 km (0.064 R)
• M10: 11,559,278 km (0.101 R)
• M11: 14,813,181 km (0.118 R)
• M12: 20,255,252 km (0.025 R)
• M13: 23,602,056 km (0.119 R)
• M14: 28,228,370 km (0.077 R)
• M15: 33,658,025 km (0.099 R)
• M16: 46,669,300 km (0.077 R)
• M17: 50,261,743 km (0.092 R)
• M18: 51,655,098 km (0.076 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 109.3

Radius: 5.4

Gravity: 3.75 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 6.3 AU - 9.66 AU

Year: 15033 Days

Day: 16.8 Hours

Environment

Temp: -237 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 57,125,307 km

• M1: 67,319 km (0.103 R)
• M2: 331,509 km (0.048 R)
• M3: 520,451 km (0.041 R)
• M4: 3,108,345 km (0.107 R)
• M5: 4,024,183 km (0.072 R)
• M6: 4,297,797 km (0.055 R)
• M7: 7,167,384 km (0.12 R)
• M8: 9,203,859 km (0.028 R)
• M9: 11,846,506 km (0.083 R)
• M10: 12,617,832 km (0.054 R)
• M11: 13,042,690 km (0.078 R)
• M12: 15,430,871 km (0.093 R)
• M13: 15,672,471 km (0.076 R)
• M14: 16,039,734 km (0.078 R)
• M15: 20,977,810 km (0.1 R)
• M16: 21,649,056 km (0.091 R)
• M17: 27,103,245 km (0.107 R)
• M18: 29,630,551 km (0.092 R)
• M19: 31,820,813 km (0.062 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 374.9

Radius: 3.5

Gravity: 30.6 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 6.84 AU - 10.88 AU

Year: 17587 Days

Day: 16.6 Hours

Environment

Temp: -236 °C

Axial Tilt: 6.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 57,125,307 km

• M1: 43,832 km (0.112 R)
• M2: 319,092 km (0.09 R)
• M3: 728,990 km (0.045 R)
• M4: 967,898 km (0.098 R)
• M5: 1,844,691 km (0.11 R)
• M6: 2,113,519 km (0.093 R)
• M7: 2,842,060 km (0.069 R)
• M8: 3,588,255 km (0.047 R)
• M9: 3,779,590 km (0.077 R)
• M10: 4,425,404 km (0.118 R)
• M11: 4,774,566 km (0.078 R)
• M12: 5,782,855 km (0.111 R)
• M13: 6,596,069 km (0.08 R)
• M14: 7,438,754 km (0.111 R)
• M15: 8,162,658 km (0.097 R)
• M16: 11,354,628 km (0.098 R)
• M17: 11,946,736 km (0.108 R)
• M18: 12,936,326 km (0.088 R)
• M19: 13,386,167 km (0.057 R)
• M20: 19,875,424 km (0.095 R)
• M21: 22,067,332 km (0.062 R)
• M22: 26,001,905 km (0.108 R)
• M23: 31,747,511 km (0.113 R)
• M24: 34,606,326 km (0.053 R)
• M25: 49,293,695 km (0.08 R)
• M26: 50,862,079 km (0.11 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 256 - 15,889 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit