🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 366

Radius: 14.4

Gravity: 1.77 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.62 AU - 0.72 AU

Year: 379 Days

Day: 13.5 Hours

Environment

Temp: -165 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 51,918,920 km

• M1: 180,415 km (0.091 R)
• M2: 638,484 km (0.077 R)
• M3: 1,157,439 km (0.047 R)
• M4: 1,640,341 km (0.061 R)
• M5: 2,159,744 km (0.118 R)
• M6: 2,627,687 km (0.085 R)
• M7: 3,164,294 km (0.048 R)
• M8: 3,706,138 km (0.087 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 273.6

Radius: 8.8

Gravity: 3.53 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.7 AU - 0.96 AU

Year: 522 Days

Day: 6.7 Hours

Environment

Temp: -173 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 51,918,920 km

• M1: 109,506 km (0.095 R)
• M2: 411,095 km (0.083 R)
• M3: 723,007 km (0.057 R)
• M4: 1,187,657 km (0.114 R)
• M5: 1,720,824 km (0.052 R)
• M6: 2,208,962 km (0.069 R)
• M7: 2,504,268 km (0.085 R)
• M8: 2,845,950 km (0.101 R)
• M9: 3,372,235 km (0.109 R)
• M10: 3,766,126 km (0.076 R)
• M11: 4,347,913 km (0.062 R)
• M12: 4,730,584 km (0.065 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 490.3

Radius: 12.6

Gravity: 3.09 G

Time & Orbit

Eccentricity (e): 0.113

Orbit Range: 0.97 AU - 1.21 AU

Year: 786 Days

Day: 13.9 Hours

Environment

Temp: -175 °C

Axial Tilt: 6.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 51,918,920 km

• M1: 156,928 km (0.066 R)
• M2: 613,950 km (0.114 R)
• M3: 1,173,147 km (0.032 R)
• M4: 1,614,311 km (0.051 R)
• M5: 2,423,336 km (0.059 R)
• M6: 3,447,483 km (0.097 R)
• M7: 4,708,743 km (0.087 R)
• M8: 5,409,160 km (0.108 R)
• M9: 6,456,794 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 282.2

Radius: 13.3

Gravity: 1.6 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 1.43 AU - 1.73 AU

Year: 1371 Days

Day: 5.6 Hours

Environment

Temp: -196 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 51,918,920 km

• M1: 165,455 km (0.104 R)
• M2: 589,266 km (0.083 R)
• M3: 1,288,636 km (0.116 R)
• M4: 1,758,224 km (0.05 R)
• M5: 2,461,932 km (0.056 R)
• M6: 3,199,599 km (0.059 R)
• M7: 3,971,524 km (0.11 R)
• M8: 4,935,683 km (0.048 R)
• M9: 6,579,913 km (0.112 R)
• M10: 8,668,748 km (0.096 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 548

Radius: 10.8

Gravity: 4.7 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 1.83 AU - 2.43 AU

Year: 2146 Days

Day: 14.9 Hours

Environment

Temp: -196 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 51,918,920 km

• M1: 134,638 km (0.105 R)
• M2: 474,076 km (0.06 R)
• M3: 818,151 km (0.092 R)
• M4: 1,322,744 km (0.113 R)
• M5: 1,663,528 km (0.086 R)
• M6: 2,099,307 km (0.062 R)
• M7: 2,837,722 km (0.106 R)
• M8: 3,382,258 km (0.106 R)
• M9: 3,794,849 km (0.102 R)
• M10: 4,639,628 km (0.082 R)
• M11: 5,512,233 km (0.115 R)
• M12: 6,594,723 km (0.101 R)
• M13: 7,214,208 km (0.045 R)
• M14: 7,696,810 km (0.06 R)
• M15: 8,231,174 km (0.064 R)
• M16: 8,600,980 km (0.051 R)
• M17: 9,574,563 km (0.062 R)
• M18: 10,053,276 km (0.039 R)
• M19: 11,509,761 km (0.112 R)
• M20: 12,488,729 km (0.084 R)
• M21: 14,612,122 km (0.097 R)
• M22: 15,064,057 km (0.092 R)

Planet 6 - Gas Giant

Semi-Major Axis: 3.83 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 157.2

Radius: 12.9

Gravity: 0.94 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 3.73 AU - 3.93 AU

Year: 5174 Days

Day: 15 Hours

Environment

Temp: -228 °C

Axial Tilt: 34.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 51,918,920 km

• M1: 160,818 km (0.101 R)
• M2: 594,502 km (0.062 R)
• M3: 1,141,432 km (0.089 R)
• M4: 1,549,834 km (0.063 R)
• M5: 2,157,500 km (0.066 R)
• M6: 2,561,265 km (0.1 R)
• M7: 3,706,886 km (0.062 R)
• M8: 5,122,530 km (0.096 R)
• M9: 6,455,747 km (0.1 R)
• M10: 6,872,227 km (0.107 R)
• M11: 7,336,280 km (0.119 R)
• M12: 8,008,572 km (0.034 R)
• M13: 8,822,086 km (0.119 R)
• M14: 9,266,391 km (0.112 R)
• M15: 10,537,824 km (0.105 R)
• M16: 13,514,522 km (0.116 R)
• M17: 14,338,507 km (0.096 R)
• M18: 14,954,102 km (0.088 R)
• M19: 17,972,838 km (0.049 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 562.9

Radius: 13.1

Gravity: 3.28 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 3.65 AU - 4.25 AU

Year: 5419 Days

Day: 13.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 51,918,920 km

• M1: 163,062 km (0.097 R)
• M2: 909,405 km (0.042 R)
• M3: 1,319,154 km (0.12 R)
• M4: 1,804,300 km (0.052 R)
• M5: 4,053,654 km (0.027 R)
• M6: 4,993,727 km (0.103 R)
• M7: 5,601,543 km (0.064 R)
• M8: 7,339,272 km (0.043 R)
• M9: 10,875,167 km (0.119 R)
• M10: 13,449,896 km (0.109 R)
• M11: 17,565,632 km (0.095 R)
• M12: 25,608,463 km (0.11 R)
• M13: 26,093,609 km (0.089 R)
• M14: 28,353,284 km (0.112 R)
• M15: 29,575,050 km (0.049 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 179.5

Radius: 9.6

Gravity: 1.95 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 3.64 AU - 4.38 AU

Year: 5543 Days

Day: 6.9 Hours

Environment

Temp: -210 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 51,918,920 km

• M1: 119,678 km (0.101 R)
• M2: 489,484 km (0.113 R)
• M3: 1,095,505 km (0.047 R)
• M4: 2,135,360 km (0.071 R)
• M5: 2,738,239 km (0.114 R)
• M6: 4,072,353 km (0.101 R)
• M7: 4,631,251 km (0.116 R)
• M8: 5,071,218 km (0.109 R)
• M9: 8,390,496 km (0.089 R)
• M10: 9,081,339 km (0.072 R)
• M11: 9,809,731 km (0.057 R)
• M12: 10,694,752 km (0.108 R)
• M13: 15,780,032 km (0.093 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 578.5

Radius: 4.6

Gravity: 27.34 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 5.31 AU - 8.31 AU

Year: 12267 Days

Day: 16.3 Hours

Environment

Temp: -234 °C

Axial Tilt: 26.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 51,918,920 km

• M1: 57,446 km (0.053 R)
• M2: 298,747 km (0.115 R)
• M3: 537,505 km (0.088 R)
• M4: 765,193 km (0.033 R)
• M5: 1,022,352 km (0.097 R)
• M6: 1,678,189 km (0.087 R)
• M7: 2,641,749 km (0.118 R)
• M8: 2,993,753 km (0.074 R)
• M9: 3,710,626 km (0.088 R)
• M10: 5,171,299 km (0.057 R)
• M11: 6,010,543 km (0.077 R)
• M12: 6,539,970 km (0.096 R)
• M13: 7,099,915 km (0.03 R)
• M14: 8,088,158 km (0.072 R)
• M15: 10,493,393 km (0.061 R)
• M16: 11,092,084 km (0.1 R)
• M17: 12,963,403 km (0.107 R)
• M18: 19,738,841 km (0.036 R)
• M19: 20,818,189 km (0.093 R)
• M20: 21,243,646 km (0.092 R)
• M21: 29,497,259 km (0.112 R)
• M22: 32,245,223 km (0.086 R)
• M23: 35,520,070 km (0.114 R)
• M24: 36,618,118 km (0.055 R)
• M25: 39,267,646 km (0.119 R)
• M26: 43,132,656 km (0.08 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 178 - 11,568 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit