🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 671

Radius: 13

Gravity: 3.97 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.53 AU - 0.85 AU

Year: 389 Days

Day: 10.5 Hours

Environment

Temp: -164 °C

Axial Tilt: 29.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 37,531,361 km

• M1: 161,715 km (0.082 R)
• M2: 574,456 km (0.091 R)
• M3: 982,559 km (0.108 R)
• M4: 1,388,717 km (0.064 R)
• M5: 1,933,552 km (0.12 R)
• M6: 2,488,710 km (0.097 R)
• M7: 2,896,364 km (0.099 R)
• M8: 3,337,528 km (0.093 R)
• M9: 4,013,412 km (0.068 R)
• M10: 4,481,055 km (0.113 R)
• M11: 4,985,050 km (0.063 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 178.2

Radius: 9.7

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 1.04 AU - 1.52 AU

Year: 982 Days

Day: 14.9 Hours

Environment

Temp: -185 °C

Axial Tilt: 9.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 37,531,361 km

• M1: 120,725 km (0.076 R)
• M2: 474,225 km (0.103 R)
• M3: 1,035,217 km (0.103 R)
• M4: 1,593,367 km (0.056 R)
• M5: 2,095,567 km (0.113 R)
• M6: 2,526,858 km (0.109 R)
• M7: 4,812,564 km (0.112 R)
• M8: 5,115,200 km (0.117 R)
• M9: 5,498,919 km (0.117 R)
• M10: 5,919,588 km (0.108 R)
• M11: 6,513,940 km (0.045 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 79.2

Radius: 13.1

Gravity: 0.46 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.06 AU - 1.5 AU

Year: 982 Days

Day: 6.4 Hours

Environment

Temp: -195 °C

Axial Tilt: 21.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 37,531,361 km

• M1: 165,605 km (0.053 R)
• M2: 1,021,005 km (0.044 R)
• M3: 1,495,530 km (0.093 R)
• M4: 2,072,080 km (0.1 R)
• M5: 2,533,590 km (0.078 R)
• M6: 3,564,020 km (0.104 R)
• M7: 4,674,485 km (0.114 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 419.5

Radius: 12.7

Gravity: 2.6 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.5 AU - 1.56 AU

Year: 1284 Days

Day: 9.3 Hours

Environment

Temp: -196 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 37,531,361 km

• M1: 157,975 km (0.077 R)
• M2: 735,423 km (0.115 R)
• M3: 1,237,324 km (0.103 R)
• M4: 1,711,100 km (0.082 R)
• M5: 2,588,791 km (0.066 R)
• M6: 3,130,485 km (0.103 R)
• M7: 3,582,121 km (0.057 R)
• M8: 4,044,827 km (0.114 R)
• M9: 4,653,092 km (0.064 R)
• M10: 5,458,976 km (0.082 R)
• M11: 6,138,898 km (0.076 R)
• M12: 6,759,430 km (0.099 R)
• M13: 8,362,222 km (0.063 R)
• M14: 9,097,795 km (0.07 R)
• M15: 9,935,393 km (0.049 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 58.3

Radius: 12.8

Gravity: 0.36 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.96 AU - 2.08 AU

Year: 1947 Days

Day: 6.5 Hours

Environment

Temp: -195 °C

Axial Tilt: 84.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 37,531,361 km

• M1: 163,810 km (0.113 R)
• M2: 721,361 km (0.108 R)
• M3: 1,948,961 km (0.09 R)
• M4: 4,532,666 km (0.087 R)
• M5: 6,616,415 km (0.071 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 815.3

Radius: 8.3

Gravity: 11.83 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 4.64 AU - 4.76 AU

Year: 6911 Days

Day: 8.9 Hours

Environment

Temp: -224 °C

Axial Tilt: 5.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 37,531,361 km

• M1: 104,868 km (0.113 R)
• M2: 374,892 km (0.101 R)
• M3: 799,301 km (0.085 R)
• M4: 1,059,153 km (0.105 R)
• M5: 1,450,202 km (0.095 R)
• M6: 1,743,713 km (0.097 R)
• M7: 2,381,000 km (0.104 R)
• M8: 3,569,704 km (0.084 R)
• M9: 4,677,477 km (0.101 R)
• M10: 5,512,682 km (0.108 R)
• M11: 6,100,003 km (0.109 R)
• M12: 9,225,850 km (0.088 R)
• M13: 9,633,504 km (0.086 R)
• M14: 10,631,771 km (0.109 R)
• M15: 10,979,437 km (0.092 R)
• M16: 16,216,858 km (0.097 R)
• M17: 20,002,582 km (0.065 R)
• M18: 20,994,864 km (0.095 R)
• M19: 24,424,994 km (0.099 R)
• M20: 27,928,726 km (0.101 R)
• M21: 29,751,127 km (0.109 R)
• M22: 31,346,289 km (0.069 R)
• M23: 32,683,544 km (0.12 R)
• M24: 33,737,910 km (0.106 R)
• M25: 37,606,661 km (0.107 R)
• M26: 38,414,489 km (0.095 R)
• M27: 38,764,099 km (0.057 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 803

Radius: 4.4

Gravity: 41.48 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 6.04 AU - 7.66 AU

Year: 12160 Days

Day: 18.9 Hours

Environment

Temp: -234 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 37,531,361 km

• M1: 55,650 km (0.107 R)
• M2: 357,689 km (0.067 R)
• M3: 675,584 km (0.105 R)
• M4: 830,268 km (0.077 R)
• M5: 986,299 km (0.086 R)
• M6: 1,546,543 km (0.108 R)
• M7: 3,136,918 km (0.082 R)
• M8: 3,363,110 km (0.078 R)
• M9: 7,031,549 km (0.059 R)
• M10: 7,462,989 km (0.091 R)
• M11: 7,911,932 km (0.082 R)
• M12: 8,522,142 km (0.045 R)
• M13: 8,716,021 km (0.107 R)
• M14: 10,320,009 km (0.034 R)
• M15: 10,707,767 km (0.118 R)
• M16: 11,278,333 km (0.103 R)
• M17: 12,171,732 km (0.035 R)
• M18: 12,356,036 km (0.098 R)
• M19: 15,852,138 km (0.102 R)
• M20: 19,532,695 km (0.075 R)
• M21: 21,885,121 km (0.032 R)
• M22: 25,807,877 km (0.076 R)
• M23: 26,112,159 km (0.111 R)
• M24: 29,950,840 km (0.032 R)
• M25: 31,655,508 km (0.041 R)
• M26: 35,631,370 km (0.065 R)
• M27: 36,134,917 km (0.04 R)
• M28: 36,515,494 km (0.071 R)
• M29: 38,855,953 km (0.093 R)
• M30: 39,792,585 km (0.108 R)
• M31: 44,847,796 km (0.076 R)
• M32: 46,623,523 km (0.067 R)
• M33: 53,535,393 km (0.059 R)
• M34: 55,869,868 km (0.091 R)
• M35: 56,890,873 km (0.094 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 157.8

Radius: 5.7

Gravity: 4.86 G

Time & Orbit

Eccentricity (e): 0.187

Orbit Range: 6.24 AU - 9.12 AU

Year: 14436 Days

Day: 19 Hours

Environment

Temp: -237 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 37,531,361 km

• M1: 77,492 km (0.076 R)
• M2: 319,840 km (0.037 R)
• M3: 642,224 km (0.087 R)
• M4: 1,622,539 km (0.064 R)
• M5: 2,846,249 km (0.099 R)
• M6: 3,553,249 km (0.12 R)
• M7: 5,069,273 km (0.115 R)
• M8: 5,338,101 km (0.08 R)
• M9: 8,325,271 km (0.081 R)
• M10: 8,827,022 km (0.092 R)
• M11: 10,029,640 km (0.086 R)
• M12: 11,901,707 km (0.085 R)
• M13: 14,169,761 km (0.087 R)
• M14: 19,467,171 km (0.108 R)
• M15: 20,052,697 km (0.055 R)
• M16: 30,888,071 km (0.101 R)
• M17: 32,087,247 km (0.117 R)
• M18: 32,800,979 km (0.095 R)
• M19: 33,421,062 km (0.117 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: 506 - 15,038 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit