🌌 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: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 208.5

Radius: 14.5

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.217

Orbit Range: 0.54 AU - 0.84 AU

Year: 382 Days

Day: 10.2 Hours

Environment

Temp: -149 °C

Axial Tilt: 31.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 60,009,010 km

• M1: 180,714 km (0.11 R)
• M2: 692,339 km (0.08 R)
• M3: 1,221,766 km (0.11 R)
• M4: 1,749,697 km (0.08 R)
• M5: 2,339,112 km (0.079 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 566.5

Radius: 10.4

Gravity: 5.24 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 0.77 AU - 0.79 AU

Year: 459 Days

Day: 9.5 Hours

Environment

Temp: -156 °C

Axial Tilt: 6.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 60,009,010 km

• M1: 129,402 km (0.053 R)
• M2: 562,488 km (0.099 R)
• M3: 1,179,579 km (0.036 R)
• M4: 1,657,395 km (0.089 R)
• M5: 2,288,099 km (0.056 R)
• M6: 2,655,063 km (0.104 R)
• M7: 3,285,768 km (0.116 R)
• M8: 4,000,247 km (0.107 R)
• M9: 4,465,347 km (0.085 R)
• M10: 4,845,176 km (0.064 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 270

Radius: 14.8

Gravity: 1.23 G

Time & Orbit

Eccentricity (e): 0.247

Orbit Range: 1.08 AU - 1.8 AU

Year: 1152 Days

Day: 13.4 Hours

Environment

Temp: -185 °C

Axial Tilt: 17.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 60,009,010 km

• M1: 185,053 km (0.083 R)
• M2: 757,414 km (0.04 R)
• M3: 1,341,594 km (0.052 R)
• M4: 2,013,139 km (0.046 R)
• M5: 2,492,001 km (0.066 R)
• M6: 2,999,437 km (0.045 R)
• M7: 3,899,418 km (0.099 R)
• M8: 4,854,152 km (0.111 R)
• M9: 5,561,600 km (0.116 R)
• M10: 6,500,476 km (0.049 R)
• M11: 7,384,151 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.45 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 692.5

Radius: 14.5

Gravity: 3.29 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 2.06 AU - 2.84 AU

Year: 2557 Days

Day: 8.8 Hours

Environment

Temp: -204 °C

Axial Tilt: 25.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 60,009,010 km

• M1: 191,635 km (0.078 R)
• M2: 693,536 km (0.09 R)
• M3: 1,455,886 km (0.096 R)
• M4: 1,989,053 km (0.044 R)
• M5: 3,625,205 km (0.036 R)
• M6: 4,646,809 km (0.083 R)
• M7: 5,380,886 km (0.069 R)
• M8: 9,049,325 km (0.116 R)
• M9: 10,347,086 km (0.114 R)
• M10: 12,694,277 km (0.115 R)
• M11: 15,328,247 km (0.117 R)
• M12: 17,813,666 km (0.072 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 654.5

Radius: 8.6

Gravity: 8.85 G

Time & Orbit

Eccentricity (e): 0.222

Orbit Range: 2.62 AU - 4.12 AU

Year: 4125 Days

Day: 13.7 Hours

Environment

Temp: -213 °C

Axial Tilt: 34.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 60,009,010 km

• M1: 107,710 km (0.105 R)
• M2: 462,706 km (0.054 R)
• M3: 913,594 km (0.077 R)
• M4: 2,917,158 km (0.085 R)
• M5: 3,482,638 km (0.101 R)
• M6: 4,232,722 km (0.109 R)
• M7: 4,957,823 km (0.119 R)
• M8: 5,243,555 km (0.12 R)
• M9: 6,437,795 km (0.079 R)
• M10: 8,592,453 km (0.109 R)
• M11: 11,590,245 km (0.111 R)
• M12: 11,864,009 km (0.077 R)
• M13: 14,316,367 km (0.101 R)
• M14: 20,198,705 km (0.085 R)
• M15: 20,997,856 km (0.081 R)
• M16: 23,961,390 km (0.101 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 472.4

Radius: 9.7

Gravity: 5.02 G

Time & Orbit

Eccentricity (e): 0.049

Orbit Range: 4.8 AU - 5.3 AU

Year: 7568 Days

Day: 14.4 Hours

Environment

Temp: -214 °C

Axial Tilt: 3.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,009,010 km

• M1: 120,725 km (0.039 R)
• M2: 581,337 km (0.052 R)
• M3: 914,941 km (0.114 R)
• M4: 1,346,082 km (0.072 R)
• M5: 1,910,365 km (0.092 R)
• M6: 3,188,230 km (0.078 R)
• M7: 4,935,832 km (0.107 R)
• M8: 6,783,515 km (0.068 R)
• M9: 7,503,231 km (0.07 R)
• M10: 11,434,962 km (0.106 R)
• M11: 11,988,025 km (0.097 R)
• M12: 13,754,776 km (0.119 R)
• M13: 14,788,348 km (0.05 R)
• M14: 16,120,966 km (0.033 R)
• M15: 16,880,773 km (0.092 R)
• M16: 28,952,873 km (0.105 R)
• M17: 32,805,167 km (0.12 R)
• M18: 33,716,817 km (0.083 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 281

Radius: 6.3

Gravity: 7.08 G

Time & Orbit

Eccentricity (e): 0.155

Orbit Range: 5.3 AU - 7.24 AU

Year: 10470 Days

Day: 19.6 Hours

Environment

Temp: -235 °C

Axial Tilt: 17.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 60,009,010 km

• M1: 88,412 km (0.108 R)
• M2: 535,860 km (0.114 R)
• M3: 760,256 km (0.106 R)
• M4: 962,812 km (0.048 R)
• M5: 1,889,720 km (0.084 R)
• M6: 2,088,985 km (0.081 R)
• M7: 2,585,500 km (0.028 R)
• M8: 4,055,299 km (0.077 R)
• M9: 4,713,979 km (0.098 R)
• M10: 5,142,128 km (0.097 R)
• M11: 5,658,240 km (0.108 R)
• M12: 5,977,632 km (0.068 R)
• M13: 6,208,312 km (0.101 R)
• M14: 7,489,917 km (0.119 R)
• M15: 8,769,427 km (0.086 R)
• M16: 9,911,158 km (0.041 R)
• M17: 10,709,263 km (0.097 R)
• M18: 12,755,163 km (0.052 R)
• M19: 14,333,271 km (0.09 R)
• M20: 14,628,278 km (0.081 R)
• M21: 16,291,358 km (0.057 R)
• M22: 18,420,883 km (0.096 R)
• M23: 19,769,508 km (0.041 R)
• M24: 21,411,644 km (0.1 R)
• M25: 22,265,848 km (0.095 R)
• M26: 22,502,811 km (0.075 R)
• M27: 28,612,238 km (0.067 R)
• M28: 31,594,921 km (0.053 R)
• M29: 35,526,054 km (0.064 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 81.6

Radius: 5

Gravity: 3.26 G

Time & Orbit

Eccentricity (e): 0.04

Orbit Range: 8.46 AU - 9.16 AU

Year: 17438 Days

Day: 16.4 Hours

Environment

Temp: -239 °C

Axial Tilt: 24 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 60,009,010 km

• M1: 62,682 km (0.096 R)
• M2: 326,871 km (0.115 R)
• M3: 539,600 km (0.113 R)
• M4: 810,820 km (0.054 R)
• M5: 2,116,660 km (0.09 R)
• M6: 4,224,045 km (0.078 R)
• M7: 4,720,860 km (0.116 R)
• M8: 8,712,879 km (0.038 R)
• M9: 10,092,172 km (0.045 R)
• M10: 11,024,615 km (0.04 R)
• M11: 18,661,736 km (0.086 R)
• M12: 20,786,923 km (0.054 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.9 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 233.4

Radius: 5.5

Gravity: 7.72 G

Time & Orbit

Eccentricity (e): 0.135

Orbit Range: 9.43 AU - 12.37 AU

Year: 23998 Days

Day: 17.8 Hours

Environment

Temp: -242 °C

Axial Tilt: 27.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 60,009,010 km

• M1: 68,516 km (0.06 R)
• M2: 337,642 km (0.089 R)
• M3: 592,408 km (0.072 R)
• M4: 1,977,833 km (0.12 R)
• M5: 2,424,233 km (0.119 R)
• M6: 3,383,455 km (0.056 R)
• M7: 8,545,180 km (0.11 R)
• M8: 9,771,434 km (0.082 R)
• M9: 12,068,659 km (0.094 R)
• M10: 22,070,323 km (0.111 R)
• M11: 25,457,070 km (0.078 R)
• M12: 27,647,033 km (0.109 R)
• M13: 28,953,172 km (0.112 R)
• M14: 29,621,426 km (0.091 R)
• M15: 34,094,552 km (0.111 R)
• M16: 35,595,467 km (0.09 R)
• M17: 38,728,495 km (0.096 R)
• M18: 42,324,678 km (0.085 R)
• M19: 49,063,913 km (0.099 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: 183 - 14,453 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit