🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.29 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.77

Radius: 0.9

Gravity: 0.95 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 0.54 AU - 0.62 AU

Year: 290 Days

Day: 18.5 Hours

Environment

Temp: -131 °C

Axial Tilt: 38.1 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (2)

Outer Limit: 42,797,316 km

• M1: 67,319 km (0.084 R)
• M2: 121,473 km (0.082 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 830.7

Radius: 13.1

Gravity: 4.84 G

Time & Orbit

Eccentricity (e): 0.013

Orbit Range: 0.92 AU - 0.94 AU

Year: 588 Days

Day: 8.3 Hours

Environment

Temp: -160 °C

Axial Tilt: 5.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 42,797,316 km

• M1: 162,912 km (0.111 R)
• M2: 571,763 km (0.056 R)
• M3: 979,268 km (0.088 R)
• M4: 1,422,227 km (0.116 R)
• M5: 1,881,044 km (0.114 R)
• M6: 2,358,859 km (0.118 R)
• M7: 3,119,714 km (0.032 R)
• M8: 3,645,551 km (0.096 R)
• M9: 4,200,559 km (0.056 R)
• M10: 4,729,836 km (0.12 R)
• M11: 5,625,927 km (0.084 R)
• M12: 6,330,234 km (0.117 R)
• M13: 6,797,278 km (0.108 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.38 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 865

Radius: 12.9

Gravity: 5.2 G

Time & Orbit

Eccentricity (e): 0.138

Orbit Range: 1.19 AU - 1.57 AU

Year: 1063 Days

Day: 12.9 Hours

Environment

Temp: -182 °C

Axial Tilt: 11.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 42,797,316 km

• M1: 162,463 km (0.101 R)
• M2: 660,624 km (0.063 R)
• M3: 1,205,609 km (0.07 R)
• M4: 1,699,731 km (0.109 R)
• M5: 2,444,728 km (0.03 R)
• M6: 3,814,596 km (0.062 R)
• M7: 4,230,777 km (0.113 R)
• M8: 4,789,077 km (0.115 R)
• M9: 6,484,170 km (0.108 R)
• M10: 7,791,207 km (0.097 R)
• M11: 9,149,555 km (0.096 R)
• M12: 9,625,725 km (0.036 R)
• M13: 10,339,307 km (0.103 R)
• M14: 10,758,032 km (0.1 R)
• M15: 11,187,976 km (0.093 R)

Planet 4 - Gas Giant

Semi-Major Axis: 5.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 670.6

Radius: 14.3

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.09

Orbit Range: 5.06 AU - 6.06 AU

Year: 8600 Days

Day: 13.6 Hours

Environment

Temp: -227 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 42,797,316 km

• M1: 188,493 km (0.088 R)
• M2: 692,638 km (0.079 R)
• M3: 1,139,188 km (0.12 R)
• M4: 2,331,483 km (0.104 R)
• M5: 3,538,588 km (0.099 R)
• M6: 4,006,381 km (0.054 R)
• M7: 5,220,966 km (0.105 R)
• M8: 8,326,917 km (0.074 R)
• M9: 9,529,684 km (0.051 R)
• M10: 11,895,574 km (0.117 R)
• M11: 12,613,793 km (0.101 R)
• M12: 17,128,807 km (0.044 R)
• M13: 18,189,456 km (0.087 R)
• M14: 18,994,741 km (0.037 R)
• M15: 22,622,489 km (0.087 R)
• M16: 24,335,086 km (0.1 R)
• M17: 27,252,842 km (0.116 R)
• M18: 31,011,938 km (0.078 R)
• M19: 33,015,352 km (0.055 R)
• M20: 37,865,914 km (0.107 R)
• M21: 39,058,508 km (0.088 R)
• M22: 40,522,473 km (0.097 R)
• M23: 42,786,637 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 648.2

Radius: 9.6

Gravity: 7.03 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 4.94 AU - 6.28 AU

Year: 8717 Days

Day: 5.3 Hours

Environment

Temp: -228 °C

Axial Tilt: 2.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 42,797,316 km

• M1: 119,379 km (0.062 R)
• M2: 504,743 km (0.109 R)
• M3: 1,009,935 km (0.109 R)
• M4: 1,322,445 km (0.089 R)
• M5: 1,802,505 km (0.107 R)
• M6: 2,117,259 km (0.109 R)
• M7: 2,469,113 km (0.099 R)
• M8: 3,337,528 km (0.106 R)
• M9: 3,867,554 km (0.113 R)
• M10: 4,480,755 km (0.102 R)
• M11: 4,884,819 km (0.034 R)
• M12: 5,219,320 km (0.11 R)
• M13: 5,667,216 km (0.097 R)
• M14: 6,036,872 km (0.087 R)
• M15: 6,862,354 km (0.096 R)
• M16: 7,205,082 km (0.032 R)
• M17: 7,639,664 km (0.114 R)
• M18: 8,431,336 km (0.118 R)
• M19: 10,624,291 km (0.089 R)
• M20: 11,933,721 km (0.109 R)
• M21: 12,374,586 km (0.077 R)
• M22: 13,643,475 km (0.08 R)
• M23: 15,903,600 km (0.1 R)
• M24: 17,754,724 km (0.118 R)
• M25: 19,290,645 km (0.114 R)
• M26: 20,518,844 km (0.086 R)
• M27: 21,798,504 km (0.114 R)
• M28: 22,961,179 km (0.106 R)
• M29: 26,047,832 km (0.071 R)
• M30: 28,512,606 km (0.034 R)
• M31: 29,902,370 km (0.104 R)
• M32: 30,716,332 km (0.072 R)
• M33: 37,769,124 km (0.04 R)
• M34: 38,361,831 km (0.12 R)
• M35: 39,931,561 km (0.086 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 33.5

Radius: 13.1

Gravity: 0.2 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 5.16 AU - 6.34 AU

Year: 9045 Days

Day: 8.3 Hours

Environment

Temp: -211 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 42,797,316 km

• M1: 162,912 km (0.095 R)
• M2: 609,911 km (0.068 R)
• M3: 1,314,666 km (0.105 R)
• M4: 1,753,137 km (0.039 R)
• M5: 2,565,753 km (0.102 R)
• M6: 7,486,775 km (0.067 R)
• M7: 9,310,223 km (0.054 R)
• M8: 10,814,430 km (0.056 R)
• M9: 13,601,438 km (0.083 R)
• M10: 15,022,768 km (0.083 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 557.3

Radius: 8.1

Gravity: 8.49 G

Time & Orbit

Eccentricity (e): 0.216

Orbit Range: 4.61 AU - 7.15 AU

Year: 9354 Days

Day: 5.8 Hours

Environment

Temp: -219 °C

Axial Tilt: 9.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 42,797,316 km

• M1: 100,829 km (0.116 R)
• M2: 379,979 km (0.088 R)
• M3: 1,058,255 km (0.06 R)
• M4: 2,043,357 km (0.111 R)
• M5: 2,480,781 km (0.111 R)
• M6: 2,916,111 km (0.103 R)
• M7: 3,332,293 km (0.117 R)
• M8: 3,837,933 km (0.114 R)
• M9: 4,202,653 km (0.074 R)
• M10: 4,941,666 km (0.115 R)
• M11: 6,069,634 km (0.113 R)
• M12: 6,421,339 km (0.119 R)
• M13: 7,439,353 km (0.103 R)
• M14: 10,276,476 km (0.076 R)
• M15: 11,504,525 km (0.098 R)
• M16: 11,934,918 km (0.094 R)
• M17: 12,320,133 km (0.093 R)
• M18: 13,466,800 km (0.038 R)
• M19: 13,824,190 km (0.059 R)
• M20: 15,838,824 km (0.09 R)
• M21: 17,543,043 km (0.108 R)
• M22: 21,961,416 km (0.11 R)
• M23: 22,623,836 km (0.08 R)
• M24: 23,988,467 km (0.099 R)
• M25: 26,600,446 km (0.039 R)
• M26: 26,880,942 km (0.097 R)
• M27: 29,796,455 km (0.111 R)
• M28: 31,853,276 km (0.107 R)
• M29: 32,169,676 km (0.052 R)
• M30: 38,231,232 km (0.114 R)
• M31: 38,828,277 km (0.111 R)
• M32: 39,918,546 km (0.087 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 414 - 18,247 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit