🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.58 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 869.9

Radius: 9.4

Gravity: 9.84 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 1.11 AU - 1.19 AU

Year: 851 Days

Day: 12.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 8.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 46,039,765 km

• M1: 116,986 km (0.065 R)
• M2: 467,194 km (0.067 R)
• M3: 895,194 km (0.107 R)
• M4: 1,187,657 km (0.114 R)
• M5: 1,603,240 km (0.078 R)
• M6: 1,907,522 km (0.084 R)
• M7: 2,229,307 km (0.114 R)
• M8: 2,855,823 km (0.086 R)
• M9: 3,392,431 km (0.085 R)
• M10: 3,979,004 km (0.109 R)
• M11: 4,372,447 km (0.106 R)
• M12: 4,720,262 km (0.117 R)
• M13: 5,048,928 km (0.114 R)
• M14: 6,387,530 km (0.108 R)
• M15: 6,836,323 km (0.112 R)
• M16: 7,210,468 km (0.075 R)
• M17: 7,647,593 km (0.115 R)
• M18: 9,177,680 km (0.106 R)
• M19: 9,691,399 km (0.071 R)

Planet 2 - Gas Giant

Semi-Major Axis: 3.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 898.5

Radius: 14.3

Gravity: 4.39 G

Time & Orbit

Eccentricity (e): 0.157

Orbit Range: 2.63 AU - 3.61 AU

Year: 3804 Days

Day: 8.3 Hours

Environment

Temp: -218 °C

Axial Tilt: 18.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 46,039,765 km

• M1: 177,872 km (0.094 R)
• M2: 631,602 km (0.076 R)
• M3: 1,152,502 km (0.105 R)
• M4: 1,727,556 km (0.067 R)
• M5: 2,688,573 km (0.051 R)
• M6: 3,204,686 km (0.118 R)
• M7: 4,487,487 km (0.034 R)
• M8: 6,060,060 km (0.109 R)
• M9: 6,575,126 km (0.111 R)
• M10: 7,833,692 km (0.071 R)
• M11: 8,335,893 km (0.085 R)
• M12: 13,417,283 km (0.056 R)
• M13: 14,615,413 km (0.118 R)
• M14: 16,283,878 km (0.079 R)
• M15: 18,450,055 km (0.045 R)
• M16: 19,277,630 km (0.098 R)
• M17: 21,006,982 km (0.116 R)
• M18: 22,263,305 km (0.113 R)

Planet 3 - Gas Giant

Semi-Major Axis: 3.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 925

Radius: 12

Gravity: 6.42 G

Time & Orbit

Eccentricity (e): 0.195

Orbit Range: 3.1 AU - 4.6 AU

Year: 5214 Days

Day: 5.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 46,039,765 km

• M1: 151,692 km (0.086 R)
• M2: 645,664 km (0.101 R)
• M3: 1,147,715 km (0.093 R)
• M4: 2,009,698 km (0.067 R)
• M5: 3,928,590 km (0.091 R)
• M6: 4,817,051 km (0.108 R)
• M7: 5,353,061 km (0.041 R)
• M8: 6,478,037 km (0.12 R)
• M9: 7,792,104 km (0.105 R)
• M10: 9,234,228 km (0.068 R)
• M11: 9,973,989 km (0.099 R)
• M12: 10,566,098 km (0.095 R)
• M13: 11,571,994 km (0.102 R)
• M14: 12,640,571 km (0.075 R)
• M15: 13,334,406 km (0.033 R)
• M16: 14,624,089 km (0.062 R)
• M17: 16,118,273 km (0.108 R)
• M18: 18,445,417 km (0.105 R)
• M19: 20,259,890 km (0.058 R)
• M20: 20,988,432 km (0.097 R)
• M21: 27,904,042 km (0.041 R)
• M22: 31,338,660 km (0.061 R)
• M23: 32,215,004 km (0.077 R)
• M24: 33,610,303 km (0.116 R)
• M25: 34,220,663 km (0.034 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 271.9

Radius: 10.2

Gravity: 2.61 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 4.69 AU - 5.85 AU

Year: 8351 Days

Day: 5.5 Hours

Environment

Temp: -218 °C

Axial Tilt: 43.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 46,039,765 km

• M1: 127,009 km (0.112 R)
• M2: 562,338 km (0.115 R)
• M3: 975,229 km (0.071 R)
• M4: 1,702,723 km (0.085 R)
• M5: 2,498,284 km (0.045 R)
• M6: 2,943,039 km (0.098 R)
• M7: 4,181,410 km (0.047 R)
• M8: 4,732,529 km (0.109 R)
• M9: 5,053,117 km (0.068 R)
• M10: 6,072,327 km (0.109 R)
• M11: 7,363,656 km (0.086 R)
• M12: 9,152,847 km (0.107 R)
• M13: 10,347,386 km (0.109 R)
• M14: 10,752,497 km (0.057 R)
• M15: 12,480,202 km (0.118 R)
• M16: 16,056,040 km (0.104 R)
• M17: 17,155,585 km (0.08 R)
• M18: 17,660,178 km (0.112 R)
• M19: 18,109,720 km (0.069 R)
• M20: 24,274,199 km (0.111 R)
• M21: 25,313,605 km (0.087 R)

Planet 5 - Ice Giant

Semi-Major Axis: 5.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 95

Radius: 5.2

Gravity: 3.51 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 4.76 AU - 7.18 AU

Year: 10069 Days

Day: 22 Hours

Environment

Temp: -218 °C

Axial Tilt: 11.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 46,039,765 km

• M1: 66,870 km (0.09 R)
• M2: 491,579 km (0.079 R)
• M3: 763,099 km (0.091 R)
• M4: 1,472,342 km (0.045 R)
• M5: 5,960,877 km (0.106 R)
• M6: 7,114,725 km (0.059 R)
• M7: 7,881,414 km (0.116 R)
• M8: 8,812,661 km (0.08 R)
• M9: 15,224,127 km (0.111 R)
• M10: 15,766,868 km (0.11 R)
• M11: 15,932,173 km (0.075 R)
• M12: 16,890,647 km (0.089 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 407.2

Radius: 5.9

Gravity: 11.7 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 6.26 AU - 6.66 AU

Year: 11333 Days

Day: 15.8 Hours

Environment

Temp: -224 °C

Axial Tilt: 23.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 46,039,765 km

• M1: 206,744 km (0.091 R)
• M2: 934,239 km (0.096 R)
• M3: 1,151,156 km (0.102 R)
• M4: 2,379,803 km (0.07 R)
• M5: 2,707,871 km (0.092 R)
• M6: 5,540,507 km (0.099 R)
• M7: 6,330,234 km (0.054 R)
• M8: 7,271,055 km (0.096 R)
• M9: 7,836,984 km (0.106 R)
• M10: 16,127,698 km (0.052 R)
• M11: 20,908,846 km (0.061 R)
• M12: 22,466,907 km (0.112 R)
• M13: 26,744,359 km (0.116 R)
• M14: 27,602,602 km (0.052 R)
• M15: 28,577,532 km (0.109 R)
• M16: 31,957,845 km (0.098 R)
• M17: 43,287,789 km (0.091 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.24 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 335.7

Radius: 7.2

Gravity: 6.48 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 6.76 AU - 7.72 AU

Year: 13447 Days

Day: 23.3 Hours

Environment

Temp: -232 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 46,039,765 km

• M1: 91,255 km (0.089 R)
• M2: 446,250 km (0.112 R)
• M3: 693,536 km (0.119 R)
• M4: 934,987 km (0.08 R)
• M5: 1,406,070 km (0.033 R)
• M6: 1,879,697 km (0.095 R)
• M7: 2,215,544 km (0.09 R)
• M8: 2,493,348 km (0.095 R)
• M9: 2,878,712 km (0.099 R)
• M10: 3,210,370 km (0.052 R)
• M11: 5,937,390 km (0.045 R)
• M12: 6,256,931 km (0.076 R)
• M13: 8,245,835 km (0.088 R)
• M14: 10,777,928 km (0.115 R)
• M15: 11,524,571 km (0.11 R)
• M16: 12,248,326 km (0.076 R)
• M17: 14,601,650 km (0.103 R)
• M18: 23,003,814 km (0.108 R)
• M19: 25,610,856 km (0.065 R)
• M20: 37,769,872 km (0.077 R)
• M21: 38,255,018 km (0.098 R)
• M22: 40,616,420 km (0.059 R)
• M23: 45,902,012 km (0.091 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 374 - 17,932 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit