🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 778.7

Radius: 10.3

Gravity: 7.34 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 0.46 AU - 0.66 AU

Year: 284 Days

Day: 14.9 Hours

Environment

Temp: -150 °C

Axial Tilt: 26.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 74,773,757 km

• M1: 128,056 km (0.072 R)
• M2: 495,917 km (0.076 R)
• M3: 1,121,535 km (0.06 R)
• M4: 1,559,109 km (0.108 R)
• M5: 2,109,330 km (0.094 R)
• M6: 2,910,726 km (0.057 R)
• M7: 3,290,106 km (0.083 R)
• M8: 3,772,709 km (0.101 R)
• M9: 4,340,732 km (0.046 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 624.6

Radius: 14.8

Gravity: 2.85 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 0.78 AU - 0.9 AU

Year: 522 Days

Day: 6.1 Hours

Environment

Temp: -170 °C

Axial Tilt: 15.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 74,773,757 km

• M1: 184,155 km (0.067 R)
• M2: 703,409 km (0.041 R)
• M3: 1,172,099 km (0.084 R)
• M4: 2,014,485 km (0.114 R)
• M5: 2,578,469 km (0.11 R)
• M6: 3,178,207 km (0.069 R)
• M7: 3,739,797 km (0.086 R)
• M8: 4,253,516 km (0.113 R)
• M9: 6,158,795 km (0.083 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 23.9

Radius: 14.6

Gravity: 0.11 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 1.24 AU - 1.94 AU

Year: 1360 Days

Day: 13.1 Hours

Environment

Temp: -192 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 74,773,757 km

• M1: 181,612 km (0.092 R)
• M2: 788,082 km (0.083 R)
• M3: 1,304,643 km (0.117 R)
• M4: 1,933,852 km (0.1 R)
• M5: 2,437,847 km (0.046 R)
• M6: 2,917,308 km (0.06 R)
• M7: 3,908,992 km (0.048 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 244.2

Radius: 13

Gravity: 1.44 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 1.71 AU - 1.83 AU

Year: 1597 Days

Day: 13.9 Hours

Environment

Temp: -203 °C

Axial Tilt: 82.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 74,773,757 km

• M1: 162,314 km (0.095 R)
• M2: 714,629 km (0.107 R)
• M3: 1,277,715 km (0.047 R)
• M4: 1,844,392 km (0.094 R)
• M5: 2,330,585 km (0.099 R)
• M6: 2,953,212 km (0.094 R)
• M7: 3,567,012 km (0.084 R)
• M8: 4,248,280 km (0.117 R)
• M9: 5,033,220 km (0.112 R)
• M10: 5,470,794 km (0.043 R)
• M11: 6,938,499 km (0.114 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 258.9

Radius: 12.3

Gravity: 1.71 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 2.95 AU - 3.93 AU

Year: 4327 Days

Day: 8.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 12.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 74,773,757 km

• M1: 277,504 km (0.097 R)
• M2: 684,111 km (0.104 R)
• M3: 1,165,816 km (0.064 R)
• M4: 3,534,549 km (0.072 R)
• M5: 4,864,624 km (0.063 R)
• M6: 5,964,916 km (0.057 R)
• M7: 8,653,938 km (0.107 R)
• M8: 9,561,548 km (0.12 R)
• M9: 13,108,663 km (0.105 R)
• M10: 13,790,381 km (0.061 R)
• M11: 14,543,456 km (0.118 R)
• M12: 15,774,946 km (0.076 R)
• M13: 18,276,372 km (0.051 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 966.1

Radius: 13

Gravity: 5.72 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 3.6 AU - 3.66 AU

Year: 4691 Days

Day: 6.8 Hours

Environment

Temp: -215 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 74,773,757 km

• M1: 167,998 km (0.116 R)
• M2: 762,650 km (0.077 R)
• M3: 1,280,408 km (0.065 R)
• M4: 2,136,706 km (0.081 R)
• M5: 3,084,558 km (0.088 R)
• M6: 3,535,596 km (0.028 R)
• M7: 3,983,941 km (0.113 R)
• M8: 5,652,107 km (0.103 R)
• M9: 6,110,175 km (0.032 R)
• M10: 6,929,224 km (0.105 R)
• M11: 7,455,060 km (0.058 R)
• M12: 8,197,515 km (0.119 R)
• M13: 8,786,182 km (0.084 R)
• M14: 13,352,956 km (0.083 R)
• M15: 14,280,613 km (0.066 R)
• M16: 14,731,800 km (0.056 R)
• M17: 20,132,433 km (0.055 R)
• M18: 20,771,964 km (0.079 R)
• M19: 21,205,947 km (0.116 R)
• M20: 22,166,814 km (0.113 R)
• M21: 23,701,539 km (0.054 R)
• M22: 25,718,118 km (0.106 R)
• M23: 28,198,002 km (0.114 R)
• M24: 29,906,709 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 977.5

Radius: 7

Gravity: 19.95 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 6.84 AU - 11.28 AU

Year: 18496 Days

Day: 16.8 Hours

Environment

Temp: -241 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 74,773,757 km

• M1: 173,234 km (0.106 R)
• M2: 479,162 km (0.054 R)
• M3: 717,621 km (0.099 R)
• M4: 951,891 km (0.099 R)
• M5: 1,433,896 km (0.076 R)
• M6: 1,703,621 km (0.081 R)
• M7: 2,849,690 km (0.09 R)
• M8: 3,279,634 km (0.084 R)
• M9: 3,539,934 km (0.11 R)
• M10: 3,972,272 km (0.108 R)
• M11: 4,234,817 km (0.091 R)
• M12: 5,726,307 km (0.053 R)
• M13: 8,628,356 km (0.107 R)
• M14: 8,902,719 km (0.051 R)
• M15: 9,526,841 km (0.119 R)
• M16: 9,760,812 km (0.117 R)
• M17: 9,998,673 km (0.076 R)
• M18: 14,275,526 km (0.098 R)
• M19: 15,050,593 km (0.117 R)
• M20: 15,853,485 km (0.106 R)
• M21: 18,163,725 km (0.11 R)
• M22: 22,808,290 km (0.081 R)
• M23: 24,190,424 km (0.081 R)
• M24: 39,229,498 km (0.097 R)
• M25: 44,058,667 km (0.105 R)
• M26: 53,759,790 km (0.113 R)
• M27: 57,156,559 km (0.107 R)
• M28: 60,493,639 km (0.11 R)
• M29: 65,001,771 km (0.082 R)
• M30: 71,503,145 km (0.119 R)
• M31: 72,401,480 km (0.104 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 760.1

Radius: 7.6

Gravity: 13.16 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 7.9 AU - 10.22 AU

Year: 18496 Days

Day: 17.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 74,773,757 km

• M1: 94,546 km (0.078 R)
• M2: 481,256 km (0.104 R)
• M3: 786,137 km (0.034 R)
• M4: 1,332,767 km (0.087 R)
• M5: 1,716,336 km (0.075 R)
• M6: 2,172,011 km (0.118 R)
• M7: 2,658,055 km (0.112 R)
• M8: 4,356,140 km (0.054 R)
• M9: 4,627,361 km (0.109 R)
• M10: 5,241,461 km (0.106 R)
• M11: 6,157,149 km (0.084 R)
• M12: 7,363,506 km (0.074 R)
• M13: 7,603,162 km (0.069 R)
• M14: 8,098,032 km (0.109 R)
• M15: 8,457,067 km (0.063 R)
• M16: 12,250,121 km (0.103 R)
• M17: 13,139,181 km (0.05 R)
• M18: 13,563,889 km (0.072 R)
• M19: 14,291,683 km (0.088 R)
• M20: 16,064,418 km (0.076 R)
• M21: 17,806,635 km (0.057 R)
• M22: 20,320,627 km (0.085 R)
• M23: 21,662,220 km (0.114 R)
• M24: 22,858,405 km (0.076 R)
• M25: 27,163,233 km (0.094 R)
• M26: 29,868,262 km (0.091 R)
• M27: 32,747,722 km (0.08 R)
• M28: 40,076,821 km (0.053 R)
• M29: 40,670,575 km (0.077 R)
• M30: 47,099,394 km (0.085 R)
• M31: 50,467,590 km (0.065 R)
• M32: 54,535,754 km (0.091 R)
• M33: 63,517,910 km (0.117 R)
• M34: 66,372,686 km (0.114 R)
• M35: 72,336,405 km (0.117 R)

Kuiper Belt

Range: 30 - 55 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 468 - 11,278 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit