🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.42 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 144

Radius: 10.8

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 0.8 AU - 0.86 AU

Year: 522 Days

Day: 8.8 Hours

Environment

Temp: -161 °C

Axial Tilt: 36.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 65,973,276 km

• M1: 136,583 km (0.084 R)
• M2: 573,109 km (0.099 R)
• M3: 952,639 km (0.067 R)
• M4: 1,686,566 km (0.069 R)
• M5: 2,231,851 km (0.066 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 190.1

Radius: 15

Gravity: 0.84 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.91 AU - 1.23 AU

Year: 764 Days

Day: 7.7 Hours

Environment

Temp: -174 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 65,973,276 km

• M1: 186,549 km (0.114 R)
• M2: 669,450 km (0.112 R)
• M3: 1,168,210 km (0.085 R)
• M4: 1,794,426 km (0.044 R)
• M5: 2,700,541 km (0.054 R)
• M6: 4,141,168 km (0.07 R)
• M7: 4,808,973 km (0.072 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 836.5

Radius: 9.3

Gravity: 9.67 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.95 AU - 1.37 AU

Year: 862 Days

Day: 5 Hours

Environment

Temp: -181 °C

Axial Tilt: 4.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 65,973,276 km

• M1: 115,639 km (0.111 R)
• M2: 500,704 km (0.079 R)
• M3: 1,222,514 km (0.099 R)
• M4: 1,646,325 km (0.114 R)
• M5: 2,240,079 km (0.104 R)
• M6: 3,155,767 km (0.09 R)
• M7: 3,594,089 km (0.034 R)
• M8: 4,915,636 km (0.076 R)
• M9: 5,466,755 km (0.112 R)
• M10: 6,100,900 km (0.088 R)
• M11: 6,424,929 km (0.102 R)
• M12: 6,967,371 km (0.107 R)
• M13: 7,394,024 km (0.115 R)
• M14: 8,041,035 km (0.058 R)
• M15: 8,404,708 km (0.069 R)
• M16: 8,970,936 km (0.109 R)
• M17: 9,677,935 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 116.6

Radius: 9.9

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.105

Orbit Range: 1.38 AU - 1.7 AU

Year: 1319 Days

Day: 6 Hours

Environment

Temp: -200 °C

Axial Tilt: 18.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 65,973,276 km

• M1: 123,568 km (0.039 R)
• M2: 671,994 km (0.1 R)
• M3: 983,456 km (0.109 R)
• M4: 1,291,478 km (0.095 R)
• M5: 1,887,177 km (0.092 R)
• M6: 2,248,905 km (0.106 R)
• M7: 3,067,504 km (0.083 R)
• M8: 3,443,743 km (0.066 R)
• M9: 4,115,886 km (0.093 R)
• M10: 5,184,314 km (0.098 R)
• M11: 5,828,483 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 702.4

Radius: 12.4

Gravity: 4.57 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 1.43 AU - 1.69 AU

Year: 1345 Days

Day: 7 Hours

Environment

Temp: -191 °C

Axial Tilt: 8.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 65,973,276 km

• M1: 154,235 km (0.064 R)
• M2: 604,675 km (0.107 R)
• M3: 1,178,831 km (0.09 R)
• M4: 1,702,274 km (0.087 R)
• M5: 2,250,999 km (0.116 R)
• M6: 3,112,533 km (0.067 R)
• M7: 3,580,475 km (0.094 R)
• M8: 4,077,888 km (0.103 R)
• M9: 6,194,100 km (0.097 R)
• M10: 6,914,414 km (0.038 R)
• M11: 8,522,142 km (0.097 R)
• M12: 9,291,374 km (0.105 R)
• M13: 10,010,042 km (0.072 R)
• M14: 10,498,330 km (0.068 R)
• M15: 10,900,449 km (0.116 R)
• M16: 11,593,536 km (0.112 R)
• M17: 12,575,646 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 582.4

Radius: 12.5

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 1.62 AU - 1.7 AU

Year: 1476 Days

Day: 8.4 Hours

Environment

Temp: -197 °C

Axial Tilt: 5.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 65,973,276 km

• M1: 155,432 km (0.082 R)
• M2: 622,327 km (0.034 R)
• M3: 1,031,627 km (0.084 R)
• M4: 1,712,148 km (0.12 R)
• M5: 2,355,718 km (0.093 R)
• M6: 3,470,671 km (0.097 R)
• M7: 5,294,418 km (0.068 R)
• M8: 5,875,157 km (0.089 R)
• M9: 6,838,418 km (0.084 R)
• M10: 7,293,345 km (0.088 R)
• M11: 9,017,610 km (0.12 R)
• M12: 9,784,598 km (0.066 R)
• M13: 11,205,329 km (0.116 R)
• M14: 12,311,905 km (0.099 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 633.5

Radius: 12.3

Gravity: 4.19 G

Time & Orbit

Eccentricity (e): 0.121

Orbit Range: 3.65 AU - 4.65 AU

Year: 5836 Days

Day: 14 Hours

Environment

Temp: -230 °C

Axial Tilt: 53.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 65,973,276 km

• M1: 156,629 km (0.118 R)
• M2: 553,063 km (0.106 R)
• M3: 1,038,209 km (0.093 R)
• M4: 1,783,805 km (0.11 R)
• M5: 2,309,193 km (0.114 R)
• M6: 3,170,278 km (0.091 R)
• M7: 3,609,647 km (0.115 R)
• M8: 4,234,667 km (0.117 R)
• M9: 4,796,407 km (0.085 R)
• M10: 5,292,473 km (0.062 R)
• M11: 5,914,501 km (0.115 R)
• M12: 9,442,318 km (0.039 R)
• M13: 11,143,845 km (0.062 R)
• M14: 12,318,637 km (0.064 R)
• M15: 13,252,875 km (0.095 R)
• M16: 13,846,480 km (0.066 R)
• M17: 14,684,677 km (0.112 R)
• M18: 16,896,780 km (0.079 R)
• M19: 17,339,141 km (0.069 R)
• M20: 20,726,635 km (0.079 R)
• M21: 21,601,035 km (0.044 R)
• M22: 22,575,665 km (0.1 R)
• M23: 26,009,535 km (0.089 R)
• M24: 28,424,044 km (0.106 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.33 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 316.6

Radius: 7.7

Gravity: 5.34 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 6.34 AU - 10.32 AU

Year: 16595 Days

Day: 22.1 Hours

Environment

Temp: -227 °C

Axial Tilt: 44.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 65,973,276 km

• M1: 96,491 km (0.113 R)
• M2: 555,606 km (0.052 R)
• M3: 2,224,969 km (0.057 R)
• M4: 3,464,238 km (0.093 R)
• M5: 3,937,266 km (0.044 R)
• M6: 4,695,877 km (0.097 R)
• M7: 5,479,022 km (0.093 R)
• M8: 8,864,422 km (0.119 R)
• M9: 14,867,635 km (0.059 R)
• M10: 18,033,575 km (0.113 R)
• M11: 22,947,117 km (0.074 R)
• M12: 25,082,327 km (0.106 R)
• M13: 26,943,325 km (0.093 R)
• M14: 30,066,180 km (0.108 R)
• M15: 37,518,548 km (0.113 R)
• M16: 44,551,592 km (0.114 R)
• M17: 44,832,986 km (0.086 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 619.1

Radius: 4.5

Gravity: 30.57 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 7.22 AU - 9.7 AU

Year: 16985 Days

Day: 19.1 Hours

Environment

Temp: -226 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 65,973,276 km

• M1: 56,099 km (0.032 R)
• M2: 204,201 km (0.057 R)
• M3: 583,282 km (0.063 R)
• M4: 767,437 km (0.108 R)
• M5: 1,123,480 km (0.092 R)
• M6: 1,367,923 km (0.115 R)
• M7: 1,647,073 km (0.076 R)
• M8: 2,512,047 km (0.088 R)
• M9: 2,669,724 km (0.085 R)
• M10: 2,833,982 km (0.083 R)
• M11: 4,767,235 km (0.092 R)
• M12: 6,726,519 km (0.101 R)
• M13: 6,943,436 km (0.058 R)
• M14: 8,002,588 km (0.112 R)
• M15: 8,246,283 km (0.082 R)
• M16: 8,748,633 km (0.119 R)
• M17: 10,093,368 km (0.109 R)
• M18: 11,881,960 km (0.062 R)
• M19: 12,587,464 km (0.094 R)
• M20: 13,320,494 km (0.11 R)
• M21: 15,388,834 km (0.109 R)
• M22: 16,149,090 km (0.092 R)
• M23: 16,695,870 km (0.098 R)
• M24: 17,093,950 km (0.074 R)
• M25: 19,266,560 km (0.107 R)
• M26: 25,593,653 km (0.119 R)
• M27: 30,620,889 km (0.118 R)
• M28: 33,679,268 km (0.097 R)
• M29: 37,882,968 km (0.119 R)
• M30: 39,827,292 km (0.079 R)
• M31: 41,400,762 km (0.044 R)
• M32: 47,790,087 km (0.042 R)
• M33: 53,764,128 km (0.058 R)
• M34: 61,907,040 km (0.088 R)
• M35: 65,381,749 km (0.104 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 421 - 19,303 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit