🌌 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: 988.7

Radius: 13.4

Gravity: 5.51 G

Time & Orbit

Eccentricity (e): 0.119

Orbit Range: 0.51 AU - 0.65 AU

Year: 295 Days

Day: 12.9 Hours

Environment

Temp: -153 °C

Axial Tilt: 21.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 63,375,001 km

• M1: 166,802 km (0.09 R)
• M2: 595,400 km (0.027 R)
• M3: 1,021,454 km (0.071 R)
• M4: 2,467,168 km (0.115 R)
• M5: 3,172,672 km (0.106 R)
• M6: 3,691,477 km (0.067 R)
• M7: 4,123,815 km (0.056 R)
• M8: 4,604,174 km (0.055 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 603

Radius: 14.1

Gravity: 3.03 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 0.67 AU - 1.01 AU

Year: 513 Days

Day: 14.8 Hours

Environment

Temp: -164 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 63,375,001 km

• M1: 175,329 km (0.11 R)
• M2: 775,964 km (0.102 R)
• M3: 1,294,171 km (0.083 R)
• M4: 1,846,487 km (0.088 R)
• M5: 2,478,388 km (0.112 R)
• M6: 3,003,327 km (0.101 R)
• M7: 4,127,405 km (0.12 R)
• M8: 5,202,715 km (0.118 R)
• M9: 5,772,084 km (0.101 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.48 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 349.6

Radius: 11.4

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 1.13 AU - 1.83 AU

Year: 1201 Days

Day: 12.6 Hours

Environment

Temp: -191 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 63,375,001 km

• M1: 141,819 km (0.067 R)
• M2: 629,807 km (0.117 R)
• M3: 1,029,533 km (0.116 R)
• M4: 1,824,196 km (0.066 R)
• M5: 2,308,744 km (0.108 R)
• M6: 2,866,146 km (0.093 R)
• M7: 3,772,410 km (0.106 R)
• M8: 5,372,359 km (0.106 R)
• M9: 6,250,199 km (0.106 R)
• M10: 6,879,408 km (0.073 R)
• M11: 7,865,108 km (0.105 R)
• M12: 8,782,741 km (0.076 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 738.8

Radius: 8.1

Gravity: 11.26 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 1.2 AU - 1.8 AU

Year: 1225 Days

Day: 5.3 Hours

Environment

Temp: -189 °C

Axial Tilt: 41.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 63,375,001 km

• M1: 100,829 km (0.112 R)
• M2: 525,089 km (0.065 R)
• M3: 841,787 km (0.078 R)
• M4: 1,174,642 km (0.036 R)
• M5: 1,931,757 km (0.108 R)
• M6: 3,093,086 km (0.117 R)
• M7: 3,589,302 km (0.112 R)
• M8: 5,234,729 km (0.108 R)
• M9: 6,303,605 km (0.103 R)
• M10: 7,381,458 km (0.096 R)
• M11: 10,540,965 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 373.9

Radius: 14.3

Gravity: 1.83 G

Time & Orbit

Eccentricity (e): 0.041

Orbit Range: 1.68 AU - 1.82 AU

Year: 1544 Days

Day: 12.6 Hours

Environment

Temp: -196 °C

Axial Tilt: 43.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 63,375,001 km

• M1: 178,171 km (0.082 R)
• M2: 682,615 km (0.111 R)
• M3: 1,307,934 km (0.082 R)
• M4: 2,023,760 km (0.114 R)
• M5: 2,634,867 km (0.025 R)
• M6: 3,775,401 km (0.05 R)
• M7: 4,619,433 km (0.106 R)
• M8: 5,987,356 km (0.079 R)
• M9: 7,408,835 km (0.097 R)
• M10: 8,874,146 km (0.068 R)
• M11: 9,841,745 km (0.063 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 130.7

Radius: 14.1

Gravity: 0.66 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 1.39 AU - 2.19 AU

Year: 1597 Days

Day: 9.9 Hours

Environment

Temp: -187 °C

Axial Tilt: 39 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 63,375,001 km

• M1: 175,329 km (0.037 R)
• M2: 703,260 km (0.095 R)
• M3: 1,325,288 km (0.11 R)
• M4: 2,460,137 km (0.062 R)
• M5: 2,936,457 km (0.116 R)
• M6: 4,123,516 km (0.051 R)
• M7: 5,021,701 km (0.069 R)
• M8: 5,702,820 km (0.11 R)
• M9: 6,384,089 km (0.1 R)

Planet 7 - Gas Giant

Semi-Major Axis: 1.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 718.3

Radius: 14.5

Gravity: 3.42 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 1.39 AU - 2.29 AU

Year: 1664 Days

Day: 13.7 Hours

Environment

Temp: -201 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 63,375,001 km

• M1: 180,415 km (0.113 R)
• M2: 661,671 km (0.074 R)
• M3: 1,154,297 km (0.113 R)
• M4: 1,615,507 km (0.112 R)
• M5: 2,250,550 km (0.12 R)
• M6: 2,932,866 km (0.119 R)
• M7: 3,549,359 km (0.105 R)
• M8: 4,326,670 km (0.107 R)
• M9: 5,236,973 km (0.113 R)
• M10: 5,749,645 km (0.057 R)
• M11: 6,295,976 km (0.115 R)
• M12: 6,955,254 km (0.1 R)
• M13: 7,438,305 km (0.104 R)
• M14: 8,502,395 km (0.059 R)
• M15: 9,341,190 km (0.115 R)
• M16: 12,077,186 km (0.11 R)
• M17: 13,300,148 km (0.105 R)
• M18: 13,836,905 km (0.096 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.63 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 224.3

Radius: 7

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.122

Orbit Range: 5.82 AU - 7.44 AU

Year: 11384 Days

Day: 15.1 Hours

Environment

Temp: -222 °C

Axial Tilt: 5.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 63,375,001 km

• M1: 87,066 km (0.062 R)
• M2: 353,500 km (0.09 R)
• M3: 1,524,402 km (0.079 R)
• M4: 2,386,834 km (0.089 R)
• M5: 2,749,310 km (0.113 R)
• M6: 3,044,765 km (0.085 R)
• M7: 3,817,738 km (0.115 R)
• M8: 4,714,726 km (0.067 R)
• M9: 8,568,368 km (0.116 R)
• M10: 9,462,664 km (0.098 R)
• M11: 9,774,126 km (0.09 R)
• M12: 11,687,334 km (0.098 R)
• M13: 12,624,564 km (0.057 R)
• M14: 16,364,212 km (0.112 R)
• M15: 17,938,430 km (0.111 R)
• M16: 20,485,035 km (0.097 R)
• M17: 21,537,306 km (0.057 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.36 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 893

Radius: 5.8

Gravity: 26.55 G

Time & Orbit

Eccentricity (e): 0.221

Orbit Range: 5.73 AU - 8.99 AU

Year: 13315 Days

Day: 24.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 63,375,001 km

• M1: 73,303 km (0.103 R)
• M2: 441,314 km (0.112 R)
• M3: 1,277,117 km (0.118 R)
• M4: 1,994,738 km (0.113 R)
• M5: 2,604,349 km (0.027 R)
• M6: 3,226,826 km (0.092 R)
• M7: 4,434,978 km (0.078 R)
• M8: 4,695,428 km (0.107 R)
• M9: 4,931,643 km (0.039 R)
• M10: 5,175,638 km (0.025 R)
• M11: 5,538,412 km (0.114 R)
• M12: 6,314,526 km (0.118 R)
• M13: 6,942,538 km (0.103 R)
• M14: 11,550,302 km (0.107 R)
• M15: 11,733,859 km (0.102 R)
• M16: 14,511,442 km (0.059 R)
• M17: 15,601,263 km (0.117 R)
• M18: 18,271,435 km (0.12 R)
• M19: 19,801,522 km (0.048 R)
• M20: 21,231,528 km (0.087 R)
• M21: 24,095,729 km (0.03 R)
• M22: 25,002,891 km (0.119 R)
• M23: 30,112,705 km (0.038 R)
• M24: 33,341,476 km (0.087 R)
• M25: 33,589,360 km (0.113 R)
• M26: 34,214,679 km (0.104 R)
• M27: 34,467,050 km (0.065 R)
• M28: 44,398,554 km (0.108 R)
• M29: 50,499,005 km (0.026 R)
• M30: 58,384,608 km (0.108 R)
• M31: 60,201,175 km (0.118 R)
• M32: 61,308,947 km (0.109 R)
• M33: 62,054,992 km (0.078 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 195 - 10,888 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit