🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.51 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.79

Radius: 1.51

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 0.44 AU - 0.58 AU

Year: 235 Days

Day: 31.7 Hours

Environment

Temp: -110 °C

Axial Tilt: 31.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 559.9

Radius: 12.3

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 0.57 AU - 0.79 AU

Year: 362 Days

Day: 14.1 Hours

Environment

Temp: -138 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 76,777,271 km

• M1: 153,039 km (0.117 R)
• M2: 646,263 km (0.04 R)
• M3: 1,189,602 km (0.041 R)
• M4: 1,775,876 km (0.101 R)
• M5: 2,206,120 km (0.12 R)
• M6: 2,650,425 km (0.068 R)
• M7: 3,164,893 km (0.099 R)
• M8: 3,594,089 km (0.113 R)
• M9: 4,240,052 km (0.072 R)
• M10: 4,694,232 km (0.067 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 863.2

Radius: 13.8

Gravity: 4.53 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 1 AU - 1.28 AU

Year: 786 Days

Day: 14.1 Hours

Environment

Temp: -158 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 76,777,271 km

• M1: 171,589 km (0.066 R)
• M2: 651,798 km (0.04 R)
• M3: 1,140,085 km (0.073 R)
• M4: 1,592,021 km (0.101 R)
• M5: 2,309,642 km (0.03 R)
• M6: 3,330,049 km (0.113 R)
• M7: 4,347,613 km (0.102 R)
• M8: 5,092,012 km (0.092 R)
• M9: 5,543,648 km (0.107 R)
• M10: 6,335,021 km (0.045 R)
• M11: 6,836,323 km (0.045 R)
• M12: 7,293,794 km (0.088 R)
• M13: 7,968,480 km (0.043 R)
• M14: 8,870,256 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 580.2

Radius: 10.7

Gravity: 5.07 G

Time & Orbit

Eccentricity (e): 0.177

Orbit Range: 3.04 AU - 4.34 AU

Year: 4577 Days

Day: 7.3 Hours

Environment

Temp: -217 °C

Axial Tilt: 83.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 76,777,271 km

• M1: 133,142 km (0.048 R)
• M2: 472,131 km (0.092 R)
• M3: 886,068 km (0.094 R)
• M4: 1,272,330 km (0.094 R)
• M5: 1,650,663 km (0.116 R)
• M6: 2,090,481 km (0.1 R)
• M7: 2,810,346 km (0.069 R)
• M8: 3,543,824 km (0.069 R)
• M9: 4,100,478 km (0.111 R)
• M10: 4,665,359 km (0.077 R)
• M11: 5,070,321 km (0.039 R)
• M12: 5,665,421 km (0.115 R)
• M13: 7,324,761 km (0.089 R)
• M14: 8,747,436 km (0.083 R)
• M15: 12,084,666 km (0.106 R)
• M16: 13,447,502 km (0.082 R)
• M17: 13,803,695 km (0.098 R)
• M18: 17,120,429 km (0.061 R)
• M19: 18,210,848 km (0.119 R)
• M20: 19,026,755 km (0.08 R)
• M21: 20,664,103 km (0.116 R)
• M22: 23,111,375 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 610.5

Radius: 8.3

Gravity: 8.86 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 3.11 AU - 4.39 AU

Year: 4689 Days

Day: 7.4 Hours

Environment

Temp: -211 °C

Axial Tilt: 46.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 76,777,271 km

• M1: 107,112 km (0.114 R)
• M2: 398,529 km (0.119 R)
• M3: 978,520 km (0.119 R)
• M4: 1,272,180 km (0.104 R)
• M5: 1,577,659 km (0.089 R)
• M6: 1,891,665 km (0.04 R)
• M7: 2,293,186 km (0.105 R)
• M8: 3,761,040 km (0.1 R)
• M9: 4,303,183 km (0.116 R)
• M10: 4,692,885 km (0.048 R)
• M11: 5,627,722 km (0.106 R)
• M12: 6,874,920 km (0.091 R)
• M13: 7,306,360 km (0.092 R)
• M14: 7,791,057 km (0.082 R)
• M15: 8,558,045 km (0.086 R)
• M16: 9,822,297 km (0.103 R)
• M17: 11,804,768 km (0.061 R)
• M18: 13,316,604 km (0.102 R)
• M19: 17,197,472 km (0.028 R)
• M20: 17,930,801 km (0.107 R)
• M21: 18,684,924 km (0.107 R)
• M22: 20,662,458 km (0.06 R)
• M23: 24,951,279 km (0.088 R)

Planet 6 - Ice Giant

Semi-Major Axis: 7.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 520.4

Radius: 4.5

Gravity: 25.7 G

Time & Orbit

Eccentricity (e): 0.034

Orbit Range: 6.88 AU - 7.36 AU

Year: 12267 Days

Day: 23.8 Hours

Environment

Temp: -225 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 76,777,271 km

• M1: 107,561 km (0.03 R)
• M2: 253,419 km (0.065 R)
• M3: 404,812 km (0.068 R)
• M4: 847,622 km (0.111 R)
• M5: 1,547,440 km (0.095 R)
• M6: 2,202,380 km (0.082 R)
• M7: 3,308,357 km (0.106 R)
• M8: 4,617,937 km (0.104 R)
• M9: 5,220,666 km (0.11 R)
• M10: 8,115,684 km (0.09 R)
• M11: 9,474,482 km (0.08 R)
• M12: 9,623,182 km (0.115 R)
• M13: 12,396,128 km (0.096 R)
• M14: 20,015,597 km (0.119 R)
• M15: 23,269,650 km (0.032 R)
• M16: 23,540,571 km (0.106 R)
• M17: 25,496,713 km (0.045 R)
• M18: 28,888,994 km (0.072 R)
• M19: 33,825,126 km (0.114 R)
• M20: 41,770,717 km (0.119 R)

Planet 7 - Ice Giant

Semi-Major Axis: 8.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 951.4

Radius: 7.1

Gravity: 18.87 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 7.71 AU - 10.13 AU

Year: 17201 Days

Day: 24.7 Hours

Environment

Temp: -238 °C

Axial Tilt: 26.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 76,777,271 km

• M1: 108,458 km (0.116 R)
• M2: 478,564 km (0.111 R)
• M3: 768,484 km (0.067 R)
• M4: 1,021,305 km (0.089 R)
• M5: 1,901,239 km (0.109 R)
• M6: 3,519,290 km (0.096 R)
• M7: 4,004,436 km (0.114 R)
• M8: 4,778,754 km (0.099 R)
• M9: 5,296,812 km (0.1 R)
• M10: 5,569,529 km (0.086 R)
• M11: 5,810,680 km (0.072 R)
• M12: 6,532,341 km (0.102 R)
• M13: 6,755,541 km (0.078 R)
• M14: 12,502,642 km (0.096 R)
• M15: 13,057,351 km (0.069 R)
• M16: 13,700,921 km (0.102 R)
• M17: 14,820,212 km (0.117 R)
• M18: 15,758,640 km (0.064 R)
• M19: 16,736,112 km (0.101 R)
• M20: 18,542,806 km (0.091 R)
• M21: 19,539,427 km (0.059 R)
• M22: 23,778,731 km (0.097 R)
• M23: 25,501,051 km (0.111 R)
• M24: 28,593,239 km (0.1 R)
• M25: 30,044,339 km (0.066 R)
• M26: 30,414,743 km (0.04 R)
• M27: 36,341,362 km (0.085 R)
• M28: 36,902,803 km (0.084 R)
• M29: 37,755,511 km (0.04 R)
• M30: 43,307,088 km (0.102 R)
• M31: 43,938,091 km (0.083 R)
• M32: 46,687,999 km (0.062 R)
• M33: 52,885,989 km (0.036 R)
• M34: 58,069,555 km (0.115 R)
• M35: 59,029,525 km (0.093 R)
• M36: 70,731,668 km (0.067 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 260 - 10,633 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit