🌌 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: 0.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 452

Radius: 14.8

Gravity: 2.06 G

Time & Orbit

Eccentricity (e): 0.099

Orbit Range: 0.63 AU - 0.77 AU

Year: 378 Days

Day: 10.3 Hours

Environment

Temp: -136 °C

Axial Tilt: 22 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 89,820,867 km

• M1: 184,753 km (0.09 R)
• M2: 702,661 km (0.118 R)
• M3: 1,199,326 km (0.089 R)
• M4: 1,977,684 km (0.117 R)
• M5: 2,909,529 km (0.092 R)
• M6: 3,782,582 km (0.087 R)
• M7: 4,332,504 km (0.068 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 60.4

Radius: 9.8

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.223

Orbit Range: 1.26 AU - 1.98 AU

Year: 1331 Days

Day: 10.3 Hours

Environment

Temp: -187 °C

Axial Tilt: 30 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 89,820,867 km

• M1: 121,922 km (0.052 R)
• M2: 472,729 km (0.025 R)
• M3: 1,362,837 km (0.076 R)
• M4: 1,885,980 km (0.102 R)
• M5: 2,605,696 km (0.078 R)
• M6: 3,630,890 km (0.047 R)
• M7: 3,957,312 km (0.059 R)
• M8: 5,211,242 km (0.111 R)
• M9: 5,546,191 km (0.097 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 710.4

Radius: 8.9

Gravity: 8.97 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 2.02 AU - 2.7 AU

Year: 2341 Days

Day: 13 Hours

Environment

Temp: -186 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 89,820,867 km

• M1: 110,702 km (0.084 R)
• M2: 451,636 km (0.074 R)
• M3: 856,298 km (0.032 R)
• M4: 1,354,758 km (0.064 R)
• M5: 3,432,074 km (0.104 R)
• M6: 4,392,343 km (0.097 R)
• M7: 4,823,185 km (0.102 R)
• M8: 5,211,242 km (0.117 R)
• M9: 5,921,383 km (0.105 R)
• M10: 7,004,920 km (0.065 R)
• M11: 7,654,624 km (0.099 R)
• M12: 9,666,416 km (0.071 R)
• M13: 10,851,830 km (0.083 R)
• M14: 11,320,520 km (0.112 R)
• M15: 12,721,953 km (0.025 R)
• M16: 13,598,446 km (0.062 R)
• M17: 14,051,578 km (0.109 R)
• M18: 14,561,558 km (0.12 R)
• M19: 15,083,804 km (0.088 R)
• M20: 15,816,085 km (0.085 R)
• M21: 16,367,952 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 682.3

Radius: 11.2

Gravity: 5.44 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 2.13 AU - 2.87 AU

Year: 2552 Days

Day: 12.8 Hours

Environment

Temp: -202 °C

Axial Tilt: 42.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 89,820,867 km

• M1: 140,173 km (0.059 R)
• M2: 877,691 km (0.065 R)
• M3: 1,724,115 km (0.119 R)
• M4: 2,150,021 km (0.06 R)
• M5: 2,529,550 km (0.106 R)
• M6: 4,046,473 km (0.064 R)
• M7: 4,436,923 km (0.085 R)
• M8: 4,920,573 km (0.079 R)
• M9: 5,586,882 km (0.087 R)
• M10: 6,698,095 km (0.073 R)
• M11: 7,516,994 km (0.101 R)
• M12: 8,666,504 km (0.089 R)
• M13: 11,472,810 km (0.063 R)
• M14: 11,882,409 km (0.12 R)
• M15: 16,637,527 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 530.3

Radius: 9.1

Gravity: 6.4 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 2.76 AU - 3.46 AU

Year: 3541 Days

Day: 6.8 Hours

Environment

Temp: -201 °C

Axial Tilt: 31.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 89,820,867 km

• M1: 113,246 km (0.102 R)
• M2: 480,808 km (0.026 R)
• M3: 1,268,889 km (0.117 R)
• M4: 1,880,146 km (0.064 R)
• M5: 2,274,486 km (0.101 R)
• M6: 2,598,066 km (0.06 R)
• M7: 4,433,782 km (0.1 R)
• M8: 4,870,907 km (0.066 R)
• M9: 5,361,887 km (0.099 R)
• M10: 6,529,498 km (0.077 R)
• M11: 7,534,347 km (0.102 R)
• M12: 7,924,349 km (0.083 R)
• M13: 8,361,923 km (0.087 R)
• M14: 10,118,950 km (0.07 R)
• M15: 10,473,945 km (0.091 R)
• M16: 11,167,032 km (0.085 R)
• M17: 15,356,521 km (0.104 R)
• M18: 19,443,235 km (0.061 R)
• M19: 21,443,508 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 425.1

Radius: 13.7

Gravity: 2.26 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 3.17 AU - 3.67 AU

Year: 4084 Days

Day: 7.8 Hours

Environment

Temp: -207 °C

Axial Tilt: 34 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 89,820,867 km

• M1: 170,392 km (0.099 R)
• M2: 614,847 km (0.09 R)
• M3: 1,643,033 km (0.119 R)
• M4: 2,138,502 km (0.116 R)
• M5: 2,750,058 km (0.106 R)
• M6: 3,571,200 km (0.12 R)
• M7: 4,394,138 km (0.099 R)
• M8: 5,091,713 km (0.051 R)
• M9: 6,533,089 km (0.101 R)
• M10: 7,100,364 km (0.093 R)
• M11: 8,197,814 km (0.071 R)
• M12: 9,517,417 km (0.117 R)
• M13: 11,434,812 km (0.06 R)
• M14: 12,439,661 km (0.11 R)
• M15: 12,987,040 km (0.11 R)
• M16: 17,961,768 km (0.101 R)
• M17: 19,379,656 km (0.084 R)
• M18: 20,554,149 km (0.082 R)
• M19: 21,514,418 km (0.113 R)
• M20: 22,237,574 km (0.082 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 783.7

Radius: 14.5

Gravity: 3.73 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 4.4 AU - 4.6 AU

Year: 6164 Days

Day: 11.9 Hours

Environment

Temp: -213 °C

Axial Tilt: 35.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 89,820,867 km

• M1: 180,415 km (0.074 R)
• M2: 649,255 km (0.091 R)
• M3: 1,175,390 km (0.078 R)
• M4: 2,857,020 km (0.118 R)
• M5: 3,472,466 km (0.107 R)
• M6: 5,029,331 km (0.116 R)
• M7: 5,869,173 km (0.117 R)
• M8: 6,323,203 km (0.071 R)
• M9: 10,332,725 km (0.118 R)
• M10: 11,390,531 km (0.118 R)
• M11: 12,048,762 km (0.032 R)
• M12: 14,939,442 km (0.113 R)
• M13: 15,605,601 km (0.074 R)
• M14: 16,609,852 km (0.117 R)
• M15: 18,333,369 km (0.049 R)
• M16: 21,138,030 km (0.066 R)
• M17: 23,725,624 km (0.067 R)
• M18: 25,137,977 km (0.114 R)
• M19: 28,496,898 km (0.102 R)
• M20: 29,146,752 km (0.116 R)
• M21: 29,901,473 km (0.096 R)
• M22: 35,129,470 km (0.11 R)

Planet 8 - Ice Giant

Semi-Major Axis: 11.23 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 763.4

Radius: 6.7

Gravity: 17.01 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 10.04 AU - 12.42 AU

Year: 24299 Days

Day: 23.2 Hours

Environment

Temp: -233 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 89,820,867 km

• M1: 83,476 km (0.047 R)
• M2: 423,960 km (0.118 R)
• M3: 926,310 km (0.091 R)
• M4: 1,419,235 km (0.119 R)
• M5: 3,135,422 km (0.064 R)
• M6: 4,482,999 km (0.074 R)
• M7: 6,827,198 km (0.054 R)
• M8: 8,098,182 km (0.088 R)
• M9: 9,579,649 km (0.119 R)
• M10: 23,607,442 km (0.105 R)
• M11: 32,337,225 km (0.118 R)
• M12: 33,857,588 km (0.051 R)
• M13: 47,421,179 km (0.099 R)
• M14: 52,514,837 km (0.109 R)
• M15: 56,764,164 km (0.037 R)
• M16: 59,789,183 km (0.083 R)
• M17: 62,074,589 km (0.083 R)
• M18: 77,509,050 km (0.084 R)
• M19: 81,226,857 km (0.06 R)
• M20: 84,027,478 km (0.049 R)
• M21: 87,419,760 km (0.098 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: 424 - 12,397 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit