🌌 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 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 906.6

Radius: 12.2

Gravity: 6.09 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 0.57 AU - 0.59 AU

Year: 310 Days

Day: 8.4 Hours

Environment

Temp: -144 °C

Axial Tilt: 41 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 53,425,600 km

• M1: 151,692 km (0.097 R)
• M2: 550,221 km (0.118 R)
• M3: 946,506 km (0.102 R)
• M4: 1,401,732 km (0.085 R)
• M5: 1,788,293 km (0.104 R)
• M6: 2,264,014 km (0.069 R)
• M7: 3,121,808 km (0.106 R)
• M8: 3,579,428 km (0.072 R)
• M9: 4,043,481 km (0.073 R)
• M10: 4,673,138 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.73 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 430.9

Radius: 9.5

Gravity: 4.77 G

Time & Orbit

Eccentricity (e): 0.042

Orbit Range: 0.7 AU - 0.76 AU

Year: 438 Days

Day: 10.7 Hours

Environment

Temp: -151 °C

Axial Tilt: 18.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 53,425,600 km

• M1: 118,182 km (0.083 R)
• M2: 472,131 km (0.113 R)
• M3: 1,017,864 km (0.064 R)
• M4: 1,336,059 km (0.108 R)
• M5: 1,700,479 km (0.101 R)
• M6: 2,231,103 km (0.11 R)
• M7: 2,980,738 km (0.103 R)
• M8: 3,694,319 km (0.063 R)
• M9: 4,130,547 km (0.072 R)
• M10: 5,046,834 km (0.053 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 588.4

Radius: 13

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 0.73 AU - 0.77 AU

Year: 457 Days

Day: 14.8 Hours

Environment

Temp: -159 °C

Axial Tilt: 2.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 53,425,600 km

• M1: 161,715 km (0.059 R)
• M2: 701,764 km (0.104 R)
• M3: 1,150,108 km (0.095 R)
• M4: 1,781,112 km (0.099 R)
• M5: 2,212,852 km (0.114 R)
• M6: 2,745,121 km (0.099 R)
• M7: 3,293,248 km (0.102 R)
• M8: 3,926,645 km (0.095 R)
• M9: 4,342,228 km (0.093 R)
• M10: 5,374,453 km (0.119 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 111.1

Radius: 14.5

Gravity: 0.53 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 1.23 AU - 1.31 AU

Year: 1006 Days

Day: 6.2 Hours

Environment

Temp: -191 °C

Axial Tilt: 25.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 53,425,600 km

• M1: 181,761 km (0.075 R)
• M2: 770,728 km (0.112 R)
• M3: 1,310,328 km (0.057 R)
• M4: 1,812,079 km (0.056 R)
• M5: 2,434,705 km (0.053 R)
• M6: 2,951,566 km (0.054 R)
• M7: 4,626,165 km (0.075 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.7 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 296

Radius: 8.7

Gravity: 3.91 G

Time & Orbit

Eccentricity (e): 0.19

Orbit Range: 1.38 AU - 2.02 AU

Year: 1558 Days

Day: 10.6 Hours

Environment

Temp: -193 °C

Axial Tilt: 16 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 53,425,600 km

• M1: 108,309 km (0.104 R)
• M2: 445,353 km (0.068 R)
• M3: 1,035,666 km (0.088 R)
• M4: 1,469,500 km (0.094 R)
• M5: 1,789,191 km (0.034 R)
• M6: 2,523,716 km (0.112 R)
• M7: 3,387,793 km (0.096 R)
• M8: 3,968,084 km (0.113 R)
• M9: 4,350,456 km (0.099 R)
• M10: 5,208,699 km (0.106 R)
• M11: 5,485,156 km (0.098 R)
• M12: 5,812,924 km (0.118 R)
• M13: 6,285,205 km (0.068 R)
• M14: 6,875,967 km (0.116 R)
• M15: 7,185,036 km (0.084 R)
• M16: 7,553,047 km (0.088 R)
• M17: 8,168,193 km (0.091 R)
• M18: 8,927,552 km (0.086 R)
• M19: 9,469,096 km (0.097 R)
• M20: 10,276,177 km (0.11 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.52 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 558

Radius: 6.3

Gravity: 14.06 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 5.84 AU - 7.2 AU

Year: 11703 Days

Day: 22.3 Hours

Environment

Temp: -226 °C

Axial Tilt: 31.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (26)

Outer Limit: 53,425,600 km

• M1: 78,389 km (0.116 R)
• M2: 339,886 km (0.083 R)
• M3: 722,558 km (0.103 R)
• M4: 1,179,579 km (0.091 R)
• M5: 1,829,881 km (0.054 R)
• M6: 2,336,719 km (0.107 R)
• M7: 2,955,156 km (0.05 R)
• M8: 4,541,193 km (0.038 R)
• M9: 5,397,790 km (0.08 R)
• M10: 6,134,859 km (0.09 R)
• M11: 7,594,037 km (0.11 R)
• M12: 7,850,597 km (0.079 R)
• M13: 9,221,961 km (0.114 R)
• M14: 11,793,548 km (0.07 R)
• M15: 12,968,041 km (0.076 R)
• M16: 14,478,232 km (0.114 R)
• M17: 23,003,964 km (0.097 R)
• M18: 25,206,344 km (0.079 R)
• M19: 25,682,214 km (0.087 R)
• M20: 31,980,135 km (0.067 R)
• M21: 34,716,430 km (0.118 R)
• M22: 34,951,299 km (0.112 R)
• M23: 35,781,567 km (0.089 R)
• M24: 38,728,046 km (0.105 R)
• M25: 42,768,236 km (0.096 R)
• M26: 47,512,583 km (0.11 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.99 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 245.8

Radius: 7.4

Gravity: 4.49 G

Time & Orbit

Eccentricity (e): 0.229

Orbit Range: 5.39 AU - 8.59 AU

Year: 12990 Days

Day: 20.6 Hours

Environment

Temp: -229 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 53,425,600 km

• M1: 92,152 km (0.116 R)
• M2: 396,734 km (0.084 R)
• M3: 2,043,357 km (0.118 R)
• M4: 2,700,990 km (0.086 R)
• M5: 3,376,723 km (0.075 R)
• M6: 4,081,778 km (0.1 R)
• M7: 4,707,845 km (0.069 R)
• M8: 4,999,262 km (0.108 R)
• M9: 6,184,077 km (0.065 R)
• M10: 6,750,454 km (0.1 R)
• M11: 7,008,810 km (0.059 R)
• M12: 7,624,405 km (0.096 R)
• M13: 8,529,023 km (0.083 R)
• M14: 9,922,677 km (0.1 R)
• M15: 11,050,196 km (0.099 R)
• M16: 11,357,919 km (0.091 R)
• M17: 11,936,863 km (0.114 R)
• M18: 13,733,234 km (0.09 R)
• M19: 15,383,299 km (0.069 R)
• M20: 20,116,276 km (0.084 R)
• M21: 20,729,927 km (0.117 R)
• M22: 22,646,126 km (0.103 R)
• M23: 24,851,946 km (0.056 R)
• M24: 26,097,199 km (0.051 R)
• M25: 31,392,814 km (0.08 R)
• M26: 33,058,137 km (0.084 R)
• M27: 33,912,491 km (0.115 R)
• M28: 36,000,428 km (0.083 R)
• M29: 38,523,546 km (0.071 R)
• M30: 38,994,630 km (0.094 R)
• M31: 39,828,189 km (0.103 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.46 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 825

Radius: 5.8

Gravity: 24.52 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 7.77 AU - 9.15 AU

Year: 17297 Days

Day: 19.1 Hours

Environment

Temp: -236 °C

Axial Tilt: 8.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 53,425,600 km

• M1: 73,153 km (0.097 R)
• M2: 300,542 km (0.115 R)
• M3: 493,224 km (0.112 R)
• M4: 752,028 km (0.075 R)
• M5: 1,807,591 km (0.07 R)
• M6: 2,477,640 km (0.105 R)
• M7: 4,294,207 km (0.092 R)
• M8: 4,528,178 km (0.04 R)
• M9: 4,841,436 km (0.087 R)
• M10: 5,168,906 km (0.084 R)
• M11: 6,240,774 km (0.091 R)
• M12: 6,941,790 km (0.064 R)
• M13: 10,514,038 km (0.091 R)
• M14: 11,760,936 km (0.11 R)
• M15: 14,996,738 km (0.113 R)
• M16: 15,692,517 km (0.088 R)
• M17: 16,982,500 km (0.086 R)
• M18: 23,359,708 km (0.045 R)
• M19: 23,565,105 km (0.112 R)
• M20: 24,399,114 km (0.088 R)
• M21: 25,252,719 km (0.056 R)
• M22: 27,587,643 km (0.077 R)
• M23: 29,221,700 km (0.087 R)
• M24: 30,305,686 km (0.081 R)
• M25: 30,919,337 km (0.036 R)
• M26: 37,238,052 km (0.091 R)
• M27: 38,511,429 km (0.084 R)
• M28: 39,086,632 km (0.075 R)
• M29: 44,839,119 km (0.088 R)
• M30: 58,174,722 km (0.059 R)
• M31: 61,829,249 km (0.116 R)
• M32: 63,812,617 km (0.091 R)
• M33: 66,866,807 km (0.081 R)
• M34: 72,389,063 km (0.107 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.55 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 220.4

Radius: 5.6

Gravity: 7.03 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 8.12 AU - 10.98 AU

Year: 20745 Days

Day: 20.1 Hours

Environment

Temp: -233 °C

Axial Tilt: 41.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 53,425,600 km

• M1: 71,059 km (0.069 R)
• M2: 327,171 km (0.098 R)
• M3: 1,935,348 km (0.064 R)
• M4: 2,111,724 km (0.1 R)
• M5: 3,114,478 km (0.098 R)
• M6: 3,433,421 km (0.077 R)
• M7: 3,693,422 km (0.118 R)
• M8: 3,966,438 km (0.085 R)
• M9: 4,401,169 km (0.042 R)
• M10: 5,468,999 km (0.093 R)
• M11: 8,058,239 km (0.056 R)
• M12: 11,885,102 km (0.097 R)
• M13: 12,785,831 km (0.115 R)
• M14: 14,453,697 km (0.057 R)
• M15: 14,655,056 km (0.057 R)
• M16: 16,625,410 km (0.092 R)
• M17: 18,845,442 km (0.031 R)
• M18: 21,603,279 km (0.069 R)
• M19: 24,333,590 km (0.033 R)
• M20: 24,618,723 km (0.057 R)
• M21: 25,292,512 km (0.037 R)
• M22: 27,490,404 km (0.066 R)
• M23: 30,688,358 km (0.089 R)
• M24: 36,928,384 km (0.1 R)
• M25: 37,557,293 km (0.063 R)
• M26: 40,943,591 km (0.069 R)
• M27: 41,212,119 km (0.083 R)
• M28: 42,298,349 km (0.058 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 536 - 12,624 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit