🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.91

Radius: 1.73

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 0.47 AU - 0.59 AU

Year: 249 Days

Day: 44.8 Hours

Environment

Temp: -128 °C

Axial Tilt: 11.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872

Radius: 9.6

Gravity: 9.46 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 0.66 AU - 0.94 AU

Year: 462 Days

Day: 11.8 Hours

Environment

Temp: -148 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 74,509,687 km

• M1: 119,379 km (0.115 R)
• M2: 494,271 km (0.119 R)
• M3: 797,057 km (0.115 R)
• M4: 1,130,960 km (0.106 R)
• M5: 1,503,159 km (0.048 R)
• M6: 1,817,465 km (0.088 R)
• M7: 2,175,901 km (0.089 R)
• M8: 2,550,943 km (0.099 R)
• M9: 2,935,409 km (0.105 R)
• M10: 3,457,656 km (0.112 R)
• M11: 4,153,734 km (0.088 R)
• M12: 4,490,180 km (0.045 R)
• M13: 5,335,558 km (0.115 R)
• M14: 5,895,203 km (0.089 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.19 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 108.3

Radius: 12.6

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 1.65 AU - 2.73 AU

Year: 2093 Days

Day: 11.9 Hours

Environment

Temp: -190 °C

Axial Tilt: 44.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 74,509,687 km

• M1: 156,779 km (0.071 R)
• M2: 615,146 km (0.119 R)
• M3: 1,155,943 km (0.046 R)
• M4: 1,650,513 km (0.108 R)
• M5: 2,194,750 km (0.066 R)
• M6: 2,645,339 km (0.066 R)
• M7: 3,974,965 km (0.081 R)
• M8: 4,566,774 km (0.037 R)
• M9: 5,161,875 km (0.044 R)
• M10: 6,171,810 km (0.05 R)
• M11: 6,572,283 km (0.109 R)
• M12: 7,102,907 km (0.1 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 574

Radius: 13.3

Gravity: 3.24 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 2.18 AU - 2.38 AU

Year: 2223 Days

Day: 13.7 Hours

Environment

Temp: -198 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 74,509,687 km

• M1: 165,605 km (0.072 R)
• M2: 827,875 km (0.091 R)
• M3: 1,452,595 km (0.1 R)
• M4: 2,473,750 km (0.104 R)
• M5: 3,142,154 km (0.068 R)
• M6: 3,606,206 km (0.046 R)
• M7: 4,591,308 km (0.054 R)
• M8: 5,700,576 km (0.059 R)
• M9: 8,046,421 km (0.096 R)
• M10: 10,211,999 km (0.111 R)
• M11: 11,277,136 km (0.09 R)
• M12: 12,783,288 km (0.069 R)
• M13: 15,334,979 km (0.059 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 732.7

Radius: 12.4

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 2.76 AU - 4.6 AU

Year: 4558 Days

Day: 12.2 Hours

Environment

Temp: -212 °C

Axial Tilt: 11.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 74,509,687 km

• M1: 154,535 km (0.035 R)
• M2: 568,622 km (0.107 R)
• M3: 1,145,620 km (0.113 R)
• M4: 2,293,784 km (0.113 R)
• M5: 2,699,045 km (0.094 R)
• M6: 3,368,046 km (0.11 R)
• M7: 4,098,832 km (0.045 R)
• M8: 4,777,857 km (0.089 R)
• M9: 5,615,904 km (0.068 R)
• M10: 7,341,067 km (0.112 R)
• M11: 9,115,148 km (0.092 R)
• M12: 9,807,337 km (0.116 R)
• M13: 10,403,485 km (0.118 R)
• M14: 10,799,321 km (0.047 R)
• M15: 12,583,126 km (0.115 R)
• M16: 13,859,046 km (0.105 R)
• M17: 14,392,961 km (0.117 R)
• M18: 15,107,440 km (0.104 R)
• M19: 15,961,195 km (0.103 R)
• M20: 19,106,042 km (0.079 R)
• M21: 20,104,458 km (0.061 R)
• M22: 21,631,254 km (0.072 R)
• M23: 23,010,995 km (0.113 R)
• M24: 23,533,839 km (0.098 R)
• M25: 25,865,023 km (0.086 R)
• M26: 26,757,075 km (0.095 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.86 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 587.6

Radius: 4.6

Gravity: 27.77 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 5.17 AU - 8.55 AU

Year: 11601 Days

Day: 19.5 Hours

Environment

Temp: -233 °C

Axial Tilt: 6.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 74,509,687 km

• M1: 57,296 km (0.069 R)
• M2: 326,423 km (0.082 R)
• M3: 1,045,839 km (0.111 R)
• M4: 1,454,390 km (0.086 R)
• M5: 2,519,677 km (0.081 R)
• M6: 3,059,576 km (0.027 R)
• M7: 3,393,777 km (0.103 R)
• M8: 3,995,161 km (0.103 R)
• M9: 4,946,154 km (0.099 R)
• M10: 6,564,355 km (0.102 R)
• M11: 7,492,609 km (0.112 R)
• M12: 7,791,655 km (0.114 R)
• M13: 8,368,206 km (0.051 R)
• M14: 8,972,731 km (0.083 R)
• M15: 11,069,794 km (0.035 R)
• M16: 12,978,513 km (0.102 R)
• M17: 14,628,877 km (0.084 R)
• M18: 17,656,887 km (0.103 R)
• M19: 17,882,481 km (0.092 R)
• M20: 20,825,819 km (0.087 R)
• M21: 23,801,021 km (0.078 R)
• M22: 25,104,318 km (0.1 R)
• M23: 28,569,304 km (0.068 R)
• M24: 34,052,664 km (0.097 R)
• M25: 37,906,754 km (0.118 R)
• M26: 39,168,313 km (0.107 R)
• M27: 41,112,786 km (0.072 R)
• M28: 45,474,013 km (0.105 R)
• M29: 49,236,848 km (0.097 R)

Planet 7 - Ice Giant

Semi-Major Axis: 10.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 572.3

Radius: 5.6

Gravity: 18.25 G

Time & Orbit

Eccentricity (e): 0.162

Orbit Range: 8.44 AU - 11.7 AU

Year: 20633 Days

Day: 17.2 Hours

Environment

Temp: -226 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 74,509,687 km

• M1: 69,862 km (0.058 R)
• M2: 249,529 km (0.081 R)
• M3: 806,333 km (0.111 R)
• M4: 1,239,418 km (0.082 R)
• M5: 2,063,104 km (0.091 R)
• M6: 2,555,880 km (0.113 R)
• M7: 2,968,171 km (0.105 R)
• M8: 4,208,637 km (0.104 R)
• M9: 5,219,021 km (0.113 R)
• M10: 6,775,138 km (0.101 R)
• M11: 7,324,761 km (0.11 R)
• M12: 7,854,337 km (0.112 R)
• M13: 9,097,645 km (0.112 R)
• M14: 10,170,860 km (0.066 R)
• M15: 11,263,074 km (0.068 R)
• M16: 11,452,465 km (0.074 R)
• M17: 12,838,190 km (0.081 R)
• M18: 13,253,773 km (0.104 R)
• M19: 13,678,182 km (0.115 R)
• M20: 14,554,377 km (0.102 R)
• M21: 18,609,826 km (0.034 R)
• M22: 27,467,067 km (0.059 R)
• M23: 28,272,801 km (0.095 R)
• M24: 29,451,034 km (0.118 R)
• M25: 39,205,264 km (0.091 R)
• M26: 40,226,119 km (0.045 R)
• M27: 43,549,885 km (0.105 R)
• M28: 60,783,410 km (0.055 R)
• M29: 63,936,784 km (0.106 R)
• M30: 68,448,356 km (0.074 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 545.5

Radius: 3.6

Gravity: 42.09 G

Time & Orbit

Eccentricity (e): 0.026

Orbit Range: 10.15 AU - 10.69 AU

Year: 21718 Days

Day: 22.3 Hours

Environment

Temp: -227 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 74,509,687 km

• M1: 44,730 km (0.066 R)
• M2: 179,966 km (0.083 R)
• M3: 410,646 km (0.097 R)
• M4: 744,249 km (0.091 R)
• M5: 1,860,848 km (0.108 R)
• M6: 3,049,702 km (0.118 R)
• M7: 4,294,207 km (0.053 R)
• M8: 4,739,410 km (0.085 R)
• M9: 6,048,242 km (0.056 R)
• M10: 6,518,578 km (0.092 R)
• M11: 7,726,730 km (0.105 R)
• M12: 8,592,752 km (0.107 R)
• M13: 11,320,220 km (0.081 R)
• M14: 19,382,798 km (0.1 R)
• M15: 19,748,864 km (0.088 R)
• M16: 20,400,512 km (0.08 R)
• M17: 23,874,623 km (0.087 R)
• M18: 29,132,091 km (0.067 R)
• M19: 30,342,188 km (0.117 R)
• M20: 37,885,511 km (0.105 R)
• M21: 39,912,413 km (0.101 R)
• M22: 53,788,662 km (0.075 R)
• M23: 58,789,270 km (0.101 R)
• M24: 61,500,133 km (0.106 R)
• M25: 65,310,840 km (0.081 R)
• M26: 66,546,070 km (0.058 R)

Kuiper Belt

Range: 30 - 60 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 255 - 14,287 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit