🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 136.1

Radius: 11.9

Gravity: 0.96 G

Time & Orbit

Eccentricity (e): 0.139

Orbit Range: 0.46 AU - 0.6 AU

Year: 262 Days

Day: 6.8 Hours

Environment

Temp: -140 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 56,092,420 km

• M1: 147,952 km (0.117 R)
• M2: 973,882 km (0.118 R)
• M3: 1,468,303 km (0.055 R)
• M4: 2,103,645 km (0.061 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.64 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 670.5

Radius: 10.7

Gravity: 5.86 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.52 AU - 0.76 AU

Year: 347 Days

Day: 7.7 Hours

Environment

Temp: -150 °C

Axial Tilt: 4.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 56,092,420 km

• M1: 133,890 km (0.059 R)
• M2: 493,374 km (0.09 R)
• M3: 892,650 km (0.069 R)
• M4: 1,337,405 km (0.098 R)
• M5: 1,958,835 km (0.057 R)
• M6: 2,455,948 km (0.109 R)
• M7: 3,517,495 km (0.108 R)
• M8: 4,113,493 km (0.039 R)
• M9: 4,634,991 km (0.029 R)
• M10: 5,006,742 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 290

Radius: 10.5

Gravity: 2.63 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.74 AU - 1.1 AU

Year: 599 Days

Day: 5.9 Hours

Environment

Temp: -168 °C

Axial Tilt: 33.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 56,092,420 km

• M1: 131,197 km (0.117 R)
• M2: 620,532 km (0.117 R)
• M3: 967,749 km (0.113 R)
• M4: 1,683,275 km (0.068 R)
• M5: 2,256,684 km (0.109 R)
• M6: 2,873,027 km (0.097 R)
• M7: 3,226,976 km (0.09 R)
• M8: 4,276,405 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 717.3

Radius: 8.7

Gravity: 9.48 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 0.82 AU - 1.12 AU

Year: 648 Days

Day: 9.7 Hours

Environment

Temp: -176 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 56,092,420 km

• M1: 108,159 km (0.113 R)
• M2: 381,475 km (0.093 R)
• M3: 1,203,365 km (0.114 R)
• M4: 1,542,354 km (0.1 R)
• M5: 1,865,934 km (0.063 R)
• M6: 2,375,315 km (0.061 R)
• M7: 2,950,818 km (0.095 R)
• M8: 3,427,886 km (0.066 R)
• M9: 3,740,994 km (0.1 R)
• M10: 4,193,378 km (0.103 R)
• M11: 4,552,263 km (0.06 R)
• M12: 5,155,143 km (0.06 R)
• M13: 5,494,281 km (0.102 R)
• M14: 6,177,943 km (0.039 R)
• M15: 7,154,219 km (0.073 R)
• M16: 7,759,791 km (0.112 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 44.5

Radius: 10.6

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.148

Orbit Range: 0.94 AU - 1.26 AU

Year: 782 Days

Day: 9.6 Hours

Environment

Temp: -173 °C

Axial Tilt: 37.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (3)

Outer Limit: 56,092,420 km

• M1: 133,441 km (0.102 R)
• M2: 821,741 km (0.062 R)
• M3: 2,556,478 km (0.116 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 715.4

Radius: 14.1

Gravity: 3.6 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 1.91 AU - 2.01 AU

Year: 1861 Days

Day: 12.2 Hours

Environment

Temp: -193 °C

Axial Tilt: 45.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 56,092,420 km

• M1: 175,628 km (0.077 R)
• M2: 718,519 km (0.045 R)
• M3: 1,312,123 km (0.045 R)
• M4: 1,963,921 km (0.064 R)
• M5: 3,297,885 km (0.05 R)
• M6: 4,764,991 km (0.095 R)
• M7: 5,214,383 km (0.093 R)
• M8: 6,051,234 km (0.118 R)
• M9: 7,529,560 km (0.068 R)
• M10: 7,993,313 km (0.12 R)
• M11: 8,445,398 km (0.108 R)
• M12: 9,335,206 km (0.097 R)
• M13: 12,583,275 km (0.076 R)
• M14: 13,787,239 km (0.084 R)
• M15: 14,395,354 km (0.115 R)
• M16: 14,930,765 km (0.109 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 784.6

Radius: 14

Gravity: 4 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 2.92 AU - 4.22 AU

Year: 4575 Days

Day: 7.6 Hours

Environment

Temp: -225 °C

Axial Tilt: 32.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 56,092,420 km

• M1: 174,581 km (0.082 R)
• M2: 712,684 km (0.063 R)
• M3: 1,590,076 km (0.056 R)
• M4: 2,111,574 km (0.103 R)
• M5: 2,594,027 km (0.117 R)
• M6: 3,386,896 km (0.072 R)
• M7: 4,556,452 km (0.118 R)
• M8: 5,317,307 km (0.038 R)
• M9: 5,920,186 km (0.118 R)
• M10: 6,600,408 km (0.104 R)
• M11: 8,228,930 km (0.046 R)
• M12: 8,801,441 km (0.081 R)
• M13: 12,464,046 km (0.095 R)
• M14: 13,117,788 km (0.115 R)
• M15: 13,688,804 km (0.109 R)
• M16: 14,880,650 km (0.103 R)
• M17: 15,848,099 km (0.065 R)
• M18: 18,354,013 km (0.102 R)
• M19: 20,073,790 km (0.055 R)
• M20: 21,826,629 km (0.076 R)
• M21: 24,449,229 km (0.115 R)
• M22: 27,781,073 km (0.105 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.15 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 378.1

Radius: 14.8

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 3.53 AU - 4.77 AU

Year: 5734 Days

Day: 10.1 Hours

Environment

Temp: -224 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 56,092,420 km

• M1: 184,005 km (0.097 R)
• M2: 738,565 km (0.064 R)
• M3: 1,505,553 km (0.055 R)
• M4: 2,297,375 km (0.116 R)
• M5: 3,676,068 km (0.108 R)
• M6: 4,242,446 km (0.117 R)
• M7: 4,816,902 km (0.083 R)
• M8: 7,654,923 km (0.099 R)
• M9: 8,400,220 km (0.083 R)
• M10: 11,738,197 km (0.095 R)
• M11: 21,725,201 km (0.096 R)
• M12: 24,556,790 km (0.082 R)
• M13: 26,735,982 km (0.084 R)

Planet 9 - Ice Giant

Semi-Major Axis: 6.31 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 949.8

Radius: 4.9

Gravity: 39.56 G

Time & Orbit

Eccentricity (e): 0.093

Orbit Range: 5.72 AU - 6.9 AU

Year: 10751 Days

Day: 22.9 Hours

Environment

Temp: -222 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 56,092,420 km

• M1: 69,264 km (0.099 R)
• M2: 242,648 km (0.095 R)
• M3: 1,068,578 km (0.083 R)
• M4: 1,385,575 km (0.11 R)
• M5: 2,002,218 km (0.057 R)
• M6: 2,546,605 km (0.102 R)
• M7: 2,785,662 km (0.097 R)
• M8: 4,094,643 km (0.052 R)
• M9: 5,031,874 km (0.109 R)
• M10: 5,514,776 km (0.086 R)
• M11: 5,804,397 km (0.081 R)
• M12: 5,990,348 km (0.064 R)
• M13: 7,191,768 km (0.102 R)
• M14: 9,281,800 km (0.099 R)
• M15: 9,536,565 km (0.111 R)
• M16: 10,824,603 km (0.046 R)
• M17: 10,993,349 km (0.105 R)
• M18: 12,592,251 km (0.109 R)
• M19: 14,138,196 km (0.096 R)
• M20: 16,096,581 km (0.087 R)
• M21: 16,538,643 km (0.117 R)
• M22: 18,228,800 km (0.098 R)
• M23: 19,694,560 km (0.115 R)
• M24: 20,887,603 km (0.117 R)
• M25: 22,674,250 km (0.065 R)
• M26: 23,888,835 km (0.104 R)
• M27: 24,657,469 km (0.113 R)
• M28: 25,442,409 km (0.077 R)
• M29: 26,446,809 km (0.109 R)
• M30: 27,061,956 km (0.084 R)
• M31: 31,181,582 km (0.09 R)
• M32: 35,452,003 km (0.077 R)
• M33: 36,199,693 km (0.045 R)
• M34: 36,957,855 km (0.092 R)
• M35: 38,636,642 km (0.097 R)
• M36: 41,730,326 km (0.119 R)
• M37: 42,284,586 km (0.066 R)
• M38: 50,256,208 km (0.049 R)
• M39: 52,636,011 km (0.051 R)
• M40: 55,089,865 km (0.114 R)
• M41: 56,092,470 km (0.034 R)

Kuiper Belt

Range: 30 - 51 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 177 - 12,396 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit