🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 331.8

Radius: 12.7

Gravity: 2.06 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.55 AU - 0.87 AU

Year: 406 Days

Day: 9.5 Hours

Environment

Temp: -159 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 80,869,270 km

• M1: 157,975 km (0.095 R)
• M2: 572,511 km (0.064 R)
• M3: 972,985 km (0.104 R)
• M4: 1,390,512 km (0.115 R)
• M5: 1,909,318 km (0.113 R)
• M6: 2,444,728 km (0.094 R)
• M7: 2,971,313 km (0.116 R)
• M8: 3,388,691 km (0.027 R)
• M9: 4,131,594 km (0.117 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 230.2

Radius: 8.5

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.164

Orbit Range: 1.48 AU - 2.06 AU

Year: 1597 Days

Day: 11.2 Hours

Environment

Temp: -197 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 80,869,270 km

• M1: 105,766 km (0.079 R)
• M2: 383,719 km (0.082 R)
• M3: 745,596 km (0.081 R)
• M4: 1,013,825 km (0.068 R)
• M5: 1,494,034 km (0.101 R)
• M6: 1,884,036 km (0.088 R)
• M7: 2,244,118 km (0.117 R)
• M8: 2,649,677 km (0.103 R)
• M9: 3,050,600 km (0.07 R)
• M10: 3,727,829 km (0.09 R)
• M11: 4,232,573 km (0.084 R)
• M12: 4,518,903 km (0.066 R)
• M13: 5,224,855 km (0.057 R)
• M14: 6,386,483 km (0.117 R)
• M15: 7,039,627 km (0.059 R)
• M16: 7,515,498 km (0.068 R)
• M17: 8,191,680 km (0.112 R)
• M18: 9,211,489 km (0.115 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 531.3

Radius: 12.9

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.13

Orbit Range: 2.11 AU - 2.75 AU

Year: 2569 Days

Day: 7.1 Hours

Environment

Temp: -207 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 80,869,270 km

• M1: 160,818 km (0.078 R)
• M2: 651,050 km (0.057 R)
• M3: 1,439,431 km (0.115 R)
• M4: 2,351,978 km (0.118 R)
• M5: 2,756,790 km (0.06 R)
• M6: 3,224,881 km (0.117 R)
• M7: 3,691,627 km (0.119 R)
• M8: 4,893,346 km (0.078 R)
• M9: 5,854,513 km (0.116 R)
• M10: 7,424,393 km (0.096 R)
• M11: 7,903,106 km (0.066 R)
• M12: 8,627,608 km (0.116 R)
• M13: 9,361,536 km (0.118 R)
• M14: 10,136,752 km (0.069 R)
• M15: 10,878,159 km (0.106 R)
• M16: 12,098,578 km (0.081 R)
• M17: 12,511,020 km (0.075 R)
• M18: 13,190,792 km (0.102 R)
• M19: 13,894,949 km (0.077 R)
• M20: 14,624,089 km (0.115 R)
• M21: 15,426,532 km (0.052 R)
• M22: 15,863,209 km (0.09 R)
• M23: 16,659,817 km (0.059 R)
• M24: 17,482,905 km (0.108 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 753.9

Radius: 13

Gravity: 4.46 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 2.6 AU - 3.08 AU

Year: 3246 Days

Day: 6.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 80,869,270 km

• M1: 161,715 km (0.08 R)
• M2: 763,697 km (0.057 R)
• M3: 1,405,472 km (0.099 R)
• M4: 2,046,200 km (0.113 R)
• M5: 3,133,477 km (0.089 R)
• M6: 4,953,485 km (0.118 R)
• M7: 5,640,737 km (0.105 R)
• M8: 6,536,679 km (0.107 R)
• M9: 7,206,129 km (0.103 R)
• M10: 7,688,433 km (0.105 R)
• M11: 9,492,284 km (0.111 R)
• M12: 10,033,380 km (0.116 R)
• M13: 10,800,667 km (0.112 R)
• M14: 12,589,858 km (0.085 R)
• M15: 14,117,850 km (0.065 R)
• M16: 19,442,338 km (0.043 R)
• M17: 21,545,085 km (0.112 R)
• M18: 22,346,032 km (0.098 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 343.7

Radius: 9.4

Gravity: 3.89 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 2.36 AU - 3.86 AU

Year: 3720 Days

Day: 13.8 Hours

Environment

Temp: -206 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 80,869,270 km

• M1: 136,433 km (0.038 R)
• M2: 481,406 km (0.067 R)
• M3: 789,129 km (0.051 R)
• M4: 1,695,841 km (0.096 R)
• M5: 2,269,250 km (0.027 R)
• M6: 2,579,666 km (0.116 R)
• M7: 2,918,505 km (0.113 R)
• M8: 3,287,114 km (0.12 R)
• M9: 4,650,100 km (0.103 R)
• M10: 5,084,084 km (0.078 R)
• M11: 7,155,865 km (0.096 R)
• M12: 7,798,238 km (0.069 R)
• M13: 8,578,690 km (0.082 R)
• M14: 9,339,245 km (0.041 R)
• M15: 10,563,255 km (0.049 R)
• M16: 11,355,226 km (0.085 R)
• M17: 11,724,434 km (0.115 R)
• M18: 12,059,234 km (0.094 R)
• M19: 12,357,383 km (0.119 R)
• M20: 12,880,077 km (0.087 R)
• M21: 16,073,543 km (0.12 R)
• M22: 18,946,870 km (0.056 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 724.1

Radius: 9.2

Gravity: 8.56 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 4.05 AU - 6.37 AU

Year: 8066 Days

Day: 11.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 0.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 80,869,270 km

• M1: 114,742 km (0.111 R)
• M2: 557,551 km (0.074 R)
• M3: 1,484,160 km (0.066 R)
• M4: 2,099,457 km (0.109 R)
• M5: 2,484,970 km (0.072 R)
• M6: 2,835,179 km (0.032 R)
• M7: 3,563,720 km (0.111 R)
• M8: 4,194,724 km (0.096 R)
• M9: 4,780,849 km (0.086 R)
• M10: 6,290,142 km (0.12 R)
• M11: 8,094,292 km (0.09 R)
• M12: 9,691,848 km (0.088 R)
• M13: 10,515,085 km (0.101 R)
• M14: 11,542,373 km (0.105 R)
• M15: 12,135,230 km (0.082 R)
• M16: 13,617,296 km (0.086 R)
• M17: 15,602,460 km (0.104 R)
• M18: 16,061,276 km (0.116 R)
• M19: 16,596,388 km (0.094 R)
• M20: 17,844,184 km (0.113 R)
• M21: 26,672,702 km (0.095 R)
• M22: 27,423,534 km (0.09 R)
• M23: 29,065,520 km (0.102 R)
• M24: 36,063,110 km (0.06 R)
• M25: 38,624,375 km (0.088 R)
• M26: 39,223,066 km (0.116 R)
• M27: 40,932,072 km (0.098 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 562.7

Radius: 6.1

Gravity: 15.12 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 5.59 AU - 8.21 AU

Year: 12293 Days

Day: 22.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 14.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 80,869,270 km

• M1: 92,003 km (0.042 R)
• M2: 463,155 km (0.098 R)
• M3: 832,363 km (0.087 R)
• M4: 1,217,278 km (0.115 R)
• M5: 1,549,684 km (0.114 R)
• M6: 2,243,818 km (0.086 R)
• M7: 3,996,806 km (0.083 R)
• M8: 4,701,113 km (0.067 R)
• M9: 6,277,127 km (0.094 R)
• M10: 8,680,865 km (0.081 R)
• M11: 15,895,971 km (0.108 R)
• M12: 21,174,980 km (0.114 R)
• M13: 22,390,313 km (0.082 R)
• M14: 29,170,687 km (0.044 R)
• M15: 30,238,966 km (0.096 R)
• M16: 30,892,259 km (0.108 R)
• M17: 34,654,796 km (0.099 R)
• M18: 36,217,196 km (0.114 R)
• M19: 36,953,965 km (0.051 R)
• M20: 44,879,062 km (0.085 R)
• M21: 51,207,650 km (0.103 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.68 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 24.8

Radius: 6.1

Gravity: 0.67 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 6.64 AU - 8.72 AU

Year: 14436 Days

Day: 19.9 Hours

Environment

Temp: -239 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 80,869,270 km

• M1: 75,996 km (0.063 R)
• M2: 490,980 km (0.119 R)
• M3: 1,680,134 km (0.06 R)
• M4: 2,538,077 km (0.078 R)
• M5: 5,956,389 km (0.106 R)
• M6: 7,026,612 km (0.061 R)
• M7: 9,799,409 km (0.096 R)
• M8: 10,368,329 km (0.099 R)
• M9: 15,482,931 km (0.119 R)
• M10: 16,306,168 km (0.072 R)
• M11: 18,095,957 km (0.11 R)
• M12: 18,605,936 km (0.043 R)
• M13: 18,951,208 km (0.063 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 600.4

Radius: 4.4

Gravity: 31.01 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 8.66 AU - 12.54 AU

Year: 23407 Days

Day: 20.8 Hours

Environment

Temp: -235 °C

Axial Tilt: 42.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 80,869,270 km

• M1: 54,902 km (0.108 R)
• M2: 253,568 km (0.094 R)
• M3: 663,167 km (0.047 R)
• M4: 962,961 km (0.083 R)
• M5: 1,185,862 km (0.119 R)
• M6: 1,541,756 km (0.117 R)
• M7: 1,905,877 km (0.048 R)
• M8: 2,066,695 km (0.088 R)
• M9: 3,038,931 km (0.088 R)
• M10: 3,489,969 km (0.088 R)
• M11: 4,248,580 km (0.063 R)
• M12: 4,595,048 km (0.102 R)
• M13: 7,419,007 km (0.076 R)
• M14: 8,445,099 km (0.087 R)
• M15: 9,446,507 km (0.103 R)
• M16: 10,156,499 km (0.105 R)
• M17: 11,093,281 km (0.072 R)
• M18: 11,748,818 km (0.107 R)
• M19: 12,780,146 km (0.118 R)
• M20: 13,945,065 km (0.078 R)
• M21: 15,660,055 km (0.066 R)
• M22: 17,250,130 km (0.088 R)
• M23: 18,218,178 km (0.052 R)
• M24: 19,408,379 km (0.094 R)
• M25: 28,735,357 km (0.085 R)
• M26: 29,967,894 km (0.109 R)
• M27: 37,382,114 km (0.084 R)
• M28: 38,998,519 km (0.074 R)
• M29: 45,433,322 km (0.069 R)
• M30: 56,452,252 km (0.063 R)
• M31: 57,992,063 km (0.085 R)
• M32: 58,772,366 km (0.036 R)
• M33: 67,822,738 km (0.037 R)
• M34: 71,554,307 km (0.053 R)
• M35: 73,129,722 km (0.108 R)
• M36: 76,349,816 km (0.107 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: 479 - 17,608 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit