🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.55 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 259.8

Radius: 14.4

Gravity: 1.25 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.44 AU - 0.66 AU

Year: 282 Days

Day: 6.2 Hours

Environment

Temp: -146 °C

Axial Tilt: 51.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 47,623,781 km

• M1: 179,667 km (0.074 R)
• M2: 944,411 km (0.062 R)
• M3: 1,937,891 km (0.101 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 253.7

Radius: 9.1

Gravity: 3.06 G

Time & Orbit

Eccentricity (e): 0.094

Orbit Range: 0.54 AU - 0.66 AU

Year: 321 Days

Day: 6.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 71.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 47,623,781 km

• M1: 113,246 km (0.07 R)
• M2: 438,322 km (0.119 R)
• M3: 725,998 km (0.12 R)
• M4: 1,070,971 km (0.106 R)
• M5: 1,368,073 km (0.047 R)
• M6: 1,834,668 km (0.096 R)
• M7: 2,163,484 km (0.1 R)
• M8: 2,588,791 km (0.1 R)
• M9: 3,004,972 km (0.081 R)
• M10: 3,365,653 km (0.093 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 55.9

Radius: 12.4

Gravity: 0.36 G

Time & Orbit

Eccentricity (e): 0.047

Orbit Range: 1.03 AU - 1.13 AU

Year: 775 Days

Day: 13.5 Hours

Environment

Temp: -189 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 47,623,781 km

• M1: 154,235 km (0.112 R)
• M2: 580,589 km (0.118 R)
• M3: 968,796 km (0.056 R)
• M4: 1,376,151 km (0.089 R)
• M5: 1,802,355 km (0.037 R)
• M6: 2,309,941 km (0.115 R)
• M7: 2,912,371 km (0.106 R)
• M8: 3,702,846 km (0.049 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.11 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 325.9

Radius: 10.8

Gravity: 2.79 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.91 AU - 1.31 AU

Year: 807 Days

Day: 11 Hours

Environment

Temp: -190 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 47,623,781 km

• M1: 134,339 km (0.079 R)
• M2: 566,527 km (0.066 R)
• M3: 1,166,415 km (0.111 R)
• M4: 1,728,753 km (0.057 R)
• M5: 2,214,497 km (0.089 R)
• M6: 2,567,099 km (0.106 R)
• M7: 3,072,740 km (0.098 R)
• M8: 4,373,793 km (0.101 R)
• M9: 5,351,265 km (0.113 R)
• M10: 6,256,183 km (0.099 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.2 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 25.7

Radius: 9.5

Gravity: 0.28 G

Time & Orbit

Eccentricity (e): 0.137

Orbit Range: 1.04 AU - 1.36 AU

Year: 907 Days

Day: 9.4 Hours

Environment

Temp: -177 °C

Axial Tilt: 29.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 47,623,781 km

• M1: 121,324 km (0.056 R)
• M2: 467,793 km (0.073 R)
• M3: 1,451,099 km (0.118 R)
• M4: 2,828,896 km (0.04 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 45.8

Radius: 8.8

Gravity: 0.59 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 1.79 AU - 2.75 AU

Year: 2361 Days

Day: 6 Hours

Environment

Temp: -215 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 47,623,781 km

• M1: 109,506 km (0.092 R)
• M2: 436,975 km (0.119 R)
• M3: 1,374,655 km (0.095 R)
• M4: 3,452,120 km (0.096 R)
• M5: 4,190,835 km (0.11 R)
• M6: 5,429,206 km (0.107 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.56 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 825.3

Radius: 4.8

Gravity: 35.82 G

Time & Orbit

Eccentricity (e): 0.176

Orbit Range: 5.41 AU - 7.71 AU

Year: 11598 Days

Day: 18.4 Hours

Environment

Temp: -229 °C

Axial Tilt: 13 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 47,623,781 km

• M1: 59,690 km (0.101 R)
• M2: 224,098 km (0.098 R)
• M3: 1,071,121 km (0.105 R)
• M4: 1,578,258 km (0.116 R)
• M5: 3,605,458 km (0.05 R)
• M6: 4,286,278 km (0.111 R)
• M7: 4,657,281 km (0.051 R)
• M8: 5,015,717 km (0.118 R)
• M9: 5,184,763 km (0.032 R)
• M10: 10,365,936 km (0.099 R)
• M11: 15,505,071 km (0.106 R)
• M12: 16,082,369 km (0.08 R)
• M13: 24,168,284 km (0.061 R)
• M14: 25,536,357 km (0.069 R)
• M15: 26,340,744 km (0.041 R)
• M16: 29,071,953 km (0.072 R)
• M17: 29,948,746 km (0.12 R)
• M18: 36,334,032 km (0.119 R)
• M19: 36,713,113 km (0.082 R)
• M20: 48,279,870 km (0.075 R)
• M21: 52,509,152 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 155.5

Radius: 3.8

Gravity: 10.77 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 5.04 AU - 8.2 AU

Year: 11757 Days

Day: 22.4 Hours

Environment

Temp: -231 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 47,623,781 km

• M1: 47,273 km (0.083 R)
• M2: 175,478 km (0.059 R)
• M3: 352,752 km (0.114 R)
• M4: 502,499 km (0.095 R)
• M5: 666,309 km (0.101 R)
• M6: 816,206 km (0.068 R)
• M7: 1,205,460 km (0.087 R)
• M8: 1,336,956 km (0.119 R)
• M9: 1,932,356 km (0.104 R)
• M10: 2,128,778 km (0.063 R)
• M11: 2,491,553 km (0.037 R)
• M12: 3,213,063 km (0.102 R)
• M13: 3,359,819 km (0.086 R)
• M14: 4,016,104 km (0.069 R)
• M15: 4,464,000 km (0.115 R)
• M16: 4,646,959 km (0.067 R)
• M17: 4,916,983 km (0.117 R)
• M18: 5,517,768 km (0.111 R)
• M19: 7,178,454 km (0.06 R)
• M20: 7,874,084 km (0.074 R)
• M21: 9,440,523 km (0.116 R)
• M22: 11,639,163 km (0.075 R)
• M23: 14,381,292 km (0.093 R)
• M24: 15,011,847 km (0.086 R)
• M25: 16,205,339 km (0.08 R)
• M26: 16,637,527 km (0.089 R)
• M27: 17,014,215 km (0.063 R)
• M28: 17,849,569 km (0.046 R)
• M29: 18,310,480 km (0.113 R)
• M30: 23,286,853 km (0.116 R)
• M31: 24,800,185 km (0.107 R)
• M32: 25,127,057 km (0.035 R)
• M33: 28,823,171 km (0.092 R)
• M34: 29,823,682 km (0.094 R)
• M35: 30,008,136 km (0.028 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 438.7

Radius: 7.2

Gravity: 8.46 G

Time & Orbit

Eccentricity (e): 0.087

Orbit Range: 6.25 AU - 7.45 AU

Year: 12375 Days

Day: 22.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 47,623,781 km

• M1: 90,208 km (0.047 R)
• M2: 348,713 km (0.038 R)
• M3: 609,611 km (0.104 R)
• M4: 841,189 km (0.031 R)
• M5: 1,519,316 km (0.114 R)
• M6: 1,797,718 km (0.084 R)
• M7: 2,110,078 km (0.106 R)
• M8: 2,996,894 km (0.085 R)
• M9: 3,975,264 km (0.103 R)
• M10: 5,854,812 km (0.097 R)
• M11: 6,395,010 km (0.065 R)
• M12: 9,268,486 km (0.085 R)
• M13: 12,203,147 km (0.117 R)
• M14: 12,608,857 km (0.101 R)
• M15: 13,631,657 km (0.117 R)
• M16: 14,904,286 km (0.113 R)
• M17: 16,816,596 km (0.075 R)
• M18: 17,319,095 km (0.087 R)
• M19: 18,054,369 km (0.089 R)
• M20: 21,960,070 km (0.115 R)
• M21: 23,171,513 km (0.092 R)
• M22: 24,154,371 km (0.071 R)
• M23: 26,780,712 km (0.086 R)
• M24: 27,663,788 km (0.093 R)
• M25: 29,591,656 km (0.037 R)
• M26: 30,854,411 km (0.064 R)
• M27: 34,167,705 km (0.084 R)
• M28: 36,384,446 km (0.105 R)
• M29: 37,103,862 km (0.097 R)
• M30: 37,955,224 km (0.084 R)
• M31: 38,571,268 km (0.084 R)
• M32: 44,691,616 km (0.115 R)
• M33: 46,072,404 km (0.073 R)

Kuiper Belt

Range: 30 - 58 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 404 - 14,370 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit