🌌 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: 126.8

Radius: 8.2

Gravity: 1.89 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 0.66 AU - 0.74 AU

Year: 391 Days

Day: 14.5 Hours

Environment

Temp: -167 °C

Axial Tilt: 61.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 91,104,530 km

• M1: 102,175 km (0.086 R)
• M2: 605,423 km (0.091 R)
• M3: 1,050,177 km (0.031 R)
• M4: 1,334,862 km (0.091 R)
• M5: 1,683,275 km (0.066 R)
• M6: 2,078,064 km (0.069 R)
• M7: 2,525,661 km (0.056 R)
• M8: 3,045,214 km (0.102 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 349.9

Radius: 11

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.084

Orbit Range: 0.72 AU - 0.86 AU

Year: 468 Days

Day: 13 Hours

Environment

Temp: -167 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 91,104,530 km

• M1: 136,732 km (0.105 R)
• M2: 492,925 km (0.081 R)
• M3: 837,299 km (0.069 R)
• M4: 1,347,278 km (0.05 R)
• M5: 1,928,616 km (0.034 R)
• M6: 2,505,465 km (0.119 R)
• M7: 2,985,525 km (0.083 R)
• M8: 3,346,654 km (0.077 R)
• M9: 3,784,826 km (0.106 R)
• M10: 4,848,168 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 171.3

Radius: 9.6

Gravity: 1.86 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 0.9 AU - 1.14 AU

Year: 687 Days

Day: 14.2 Hours

Environment

Temp: -182 °C

Axial Tilt: 10.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 91,104,530 km

• M1: 120,576 km (0.12 R)
• M2: 847,472 km (0.093 R)
• M3: 1,264,252 km (0.116 R)
• M4: 1,950,158 km (0.109 R)
• M5: 2,386,236 km (0.064 R)
• M6: 2,728,516 km (0.096 R)
• M7: 3,156,814 km (0.104 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.03 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 62.3

Radius: 10.5

Gravity: 0.57 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 0.99 AU - 1.07 AU

Year: 697 Days

Day: 6.5 Hours

Environment

Temp: -173 °C

Axial Tilt: 36.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 91,104,530 km

• M1: 131,497 km (0.12 R)
• M2: 491,429 km (0.112 R)
• M3: 902,524 km (0.077 R)
• M4: 1,322,595 km (0.067 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 321

Radius: 10.3

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 2.89 AU - 4.59 AU

Year: 4823 Days

Day: 6.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 163.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 91,104,530 km

• M1: 128,056 km (0.075 R)
• M2: 561,441 km (0.09 R)
• M3: 1,007,392 km (0.045 R)
• M4: 1,674,599 km (0.05 R)
• M5: 2,462,082 km (0.117 R)
• M6: 2,873,027 km (0.098 R)
• M7: 3,348,150 km (0.094 R)
• M8: 3,673,825 km (0.118 R)
• M9: 4,828,421 km (0.094 R)
• M10: 5,634,005 km (0.097 R)
• M11: 6,069,186 km (0.115 R)
• M12: 6,764,068 km (0.106 R)
• M13: 7,478,846 km (0.096 R)
• M14: 9,243,204 km (0.105 R)
• M15: 10,362,046 km (0.117 R)
• M16: 10,768,204 km (0.103 R)
• M17: 12,273,757 km (0.05 R)
• M18: 12,774,761 km (0.065 R)
• M19: 15,804,267 km (0.091 R)
• M20: 17,858,695 km (0.096 R)
• M21: 20,462,894 km (0.055 R)
• M22: 21,102,874 km (0.115 R)
• M23: 22,021,405 km (0.031 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 610.3

Radius: 10.3

Gravity: 5.75 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 5.26 AU - 5.62 AU

Year: 8461 Days

Day: 5.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 47.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 91,104,530 km

• M1: 133,591 km (0.047 R)
• M2: 467,194 km (0.096 R)
• M3: 937,679 km (0.054 R)
• M4: 1,365,380 km (0.063 R)
• M5: 2,095,567 km (0.057 R)
• M6: 3,046,710 km (0.104 R)
• M7: 3,513,904 km (0.049 R)
• M8: 4,878,985 km (0.089 R)
• M9: 5,457,031 km (0.099 R)
• M10: 6,497,634 km (0.061 R)
• M11: 9,012,673 km (0.095 R)
• M12: 10,170,262 km (0.108 R)
• M13: 10,511,494 km (0.056 R)
• M14: 12,278,993 km (0.057 R)
• M15: 12,834,600 km (0.088 R)
• M16: 13,348,917 km (0.041 R)
• M17: 15,416,809 km (0.117 R)
• M18: 20,254,355 km (0.099 R)
• M19: 25,477,864 km (0.084 R)
• M20: 30,920,533 km (0.113 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 712.4

Radius: 11.1

Gravity: 5.78 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 5.01 AU - 6.21 AU

Year: 8861 Days

Day: 5.4 Hours

Environment

Temp: -224 °C

Axial Tilt: 25.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 91,104,530 km

• M1: 138,677 km (0.068 R)
• M2: 1,108,071 km (0.099 R)
• M3: 1,560,755 km (0.067 R)
• M4: 2,069,387 km (0.094 R)
• M5: 2,627,687 km (0.078 R)
• M6: 3,061,371 km (0.069 R)
• M7: 3,615,332 km (0.115 R)
• M8: 5,588,079 km (0.117 R)
• M9: 7,691,275 km (0.1 R)
• M10: 13,095,798 km (0.096 R)
• M11: 23,962,138 km (0.115 R)
• M12: 33,573,801 km (0.12 R)
• M13: 34,917,041 km (0.067 R)
• M14: 38,069,816 km (0.082 R)
• M15: 39,901,043 km (0.08 R)
• M16: 41,153,925 km (0.105 R)
• M17: 42,821,792 km (0.041 R)
• M18: 44,400,798 km (0.108 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 929.5

Radius: 6.2

Gravity: 24.18 G

Time & Orbit

Eccentricity (e): 0.142

Orbit Range: 8.96 AU - 11.92 AU

Year: 22495 Days

Day: 16 Hours

Environment

Temp: -231 °C

Axial Tilt: 3.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 91,104,530 km

• M1: 77,342 km (0.1 R)
• M2: 343,327 km (0.076 R)
• M3: 556,654 km (0.084 R)
• M4: 896,241 km (0.07 R)
• M5: 1,432,250 km (0.071 R)
• M6: 1,658,592 km (0.081 R)
• M7: 2,032,885 km (0.08 R)
• M8: 2,609,286 km (0.1 R)
• M9: 3,004,374 km (0.102 R)
• M10: 3,946,541 km (0.117 R)
• M11: 4,763,047 km (0.083 R)
• M12: 7,064,909 km (0.105 R)
• M13: 7,314,438 km (0.047 R)
• M14: 7,778,491 km (0.093 R)
• M15: 8,044,625 km (0.105 R)
• M16: 8,708,242 km (0.091 R)
• M17: 11,800,280 km (0.105 R)
• M18: 15,554,588 km (0.111 R)
• M19: 16,494,960 km (0.105 R)
• M20: 18,022,055 km (0.088 R)
• M21: 20,536,048 km (0.063 R)
• M22: 24,960,255 km (0.084 R)
• M23: 25,191,085 km (0.107 R)
• M24: 28,447,232 km (0.062 R)
• M25: 29,721,207 km (0.09 R)
• M26: 30,899,739 km (0.09 R)
• M27: 41,150,335 km (0.093 R)
• M28: 47,033,571 km (0.038 R)
• M29: 47,562,549 km (0.051 R)
• M30: 49,354,133 km (0.055 R)
• M31: 52,691,811 km (0.058 R)
• M32: 54,803,834 km (0.057 R)
• M33: 58,583,723 km (0.116 R)
• M34: 62,321,426 km (0.109 R)
• M35: 64,465,163 km (0.107 R)
• M36: 65,336,272 km (0.09 R)
• M37: 70,267,915 km (0.111 R)
• M38: 70,728,228 km (0.12 R)
• M39: 82,131,774 km (0.215 R)
• M40: 84,446,801 km (0.076 R)
• M41: 91,104,505 km (0.083 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 547 - 12,414 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit