🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.52 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.04 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 307.8

Radius: 10.9

Gravity: 2.59 G

Time & Orbit

Eccentricity (e): 0.117

Orbit Range: 0.92 AU - 1.16 AU

Year: 685 Days

Day: 12.4 Hours

Environment

Temp: -161 °C

Axial Tilt: 33.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 68,870,020 km

• M1: 135,536 km (0.076 R)
• M2: 558,898 km (0.085 R)
• M3: 1,357,301 km (0.099 R)
• M4: 2,033,484 km (0.108 R)
• M5: 2,610,483 km (0.062 R)
• M6: 3,305,664 km (0.105 R)
• M7: 5,288,135 km (0.066 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 647.6

Radius: 12.4

Gravity: 4.21 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.97 AU - 1.17 AU

Year: 715 Days

Day: 8.6 Hours

Environment

Temp: -171 °C

Axial Tilt: 31.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 68,870,020 km

• M1: 154,834 km (0.118 R)
• M2: 560,094 km (0.064 R)
• M3: 1,000,511 km (0.094 R)
• M4: 1,440,777 km (0.055 R)
• M5: 2,742,279 km (0.084 R)
• M6: 3,195,261 km (0.082 R)
• M7: 3,768,370 km (0.109 R)
• M8: 4,949,296 km (0.068 R)
• M9: 5,369,516 km (0.084 R)
• M10: 6,567,347 km (0.031 R)
• M11: 7,542,874 km (0.077 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.09 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 256.7

Radius: 12.3

Gravity: 1.7 G

Time & Orbit

Eccentricity (e): 0.227

Orbit Range: 0.84 AU - 1.34 AU

Year: 735 Days

Day: 12.3 Hours

Environment

Temp: -158 °C

Axial Tilt: 40 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 68,870,020 km

• M1: 153,039 km (0.081 R)
• M2: 587,620 km (0.114 R)
• M3: 1,300,005 km (0.08 R)
• M4: 1,938,340 km (0.071 R)
• M5: 2,798,677 km (0.115 R)
• M6: 3,495,354 km (0.119 R)
• M7: 3,924,850 km (0.106 R)
• M8: 4,576,947 km (0.064 R)
• M9: 5,045,637 km (0.075 R)
• M10: 5,956,688 km (0.115 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.32 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 935

Radius: 14.5

Gravity: 4.45 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 3.07 AU - 3.57 AU

Year: 3906 Days

Day: 7.1 Hours

Environment

Temp: -214 °C

Axial Tilt: 12.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 68,870,020 km

• M1: 180,415 km (0.117 R)
• M2: 919,877 km (0.092 R)
• M3: 1,497,475 km (0.089 R)
• M4: 2,316,972 km (0.098 R)
• M5: 3,501,637 km (0.119 R)
• M6: 4,265,484 km (0.114 R)
• M7: 5,353,659 km (0.08 R)
• M8: 6,187,218 km (0.1 R)
• M9: 6,941,192 km (0.072 R)
• M10: 7,442,943 km (0.119 R)
• M11: 9,294,067 km (0.116 R)
• M12: 10,938,447 km (0.1 R)
• M13: 11,995,206 km (0.104 R)
• M14: 13,068,571 km (0.061 R)
• M15: 15,860,067 km (0.047 R)
• M16: 20,487,428 km (0.11 R)
• M17: 25,079,185 km (0.061 R)
• M18: 26,346,279 km (0.103 R)
• M19: 27,655,710 km (0.058 R)
• M20: 28,326,506 km (0.05 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 654.5

Radius: 14.6

Gravity: 3.07 G

Time & Orbit

Eccentricity (e): 0.074

Orbit Range: 3.49 AU - 4.05 AU

Year: 4726 Days

Day: 8.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 68,870,020 km

• M1: 181,612 km (0.079 R)
• M2: 793,168 km (0.088 R)
• M3: 1,330,224 km (0.102 R)
• M4: 1,857,108 km (0.065 R)
• M5: 2,460,436 km (0.109 R)
• M6: 3,080,519 km (0.105 R)
• M7: 3,935,172 km (0.083 R)
• M8: 4,419,271 km (0.071 R)
• M9: 5,370,115 km (0.08 R)
• M10: 5,938,736 km (0.108 R)
• M11: 6,422,536 km (0.111 R)
• M12: 8,402,164 km (0.065 R)
• M13: 8,974,526 km (0.107 R)
• M14: 10,155,451 km (0.057 R)
• M15: 10,894,465 km (0.089 R)
• M16: 12,189,833 km (0.105 R)
• M17: 15,030,098 km (0.067 R)
• M18: 15,933,220 km (0.117 R)
• M19: 18,349,525 km (0.101 R)
• M20: 19,119,805 km (0.084 R)
• M21: 24,202,542 km (0.092 R)
• M22: 25,129,301 km (0.114 R)

Planet 6 - Ice Giant

Semi-Major Axis: 8.7 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 104.5

Radius: 6.5

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.053

Orbit Range: 8.24 AU - 9.16 AU

Year: 16569 Days

Day: 19.6 Hours

Environment

Temp: -224 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 68,870,020 km

• M1: 102,026 km (0.053 R)
• M2: 660,325 km (0.068 R)
• M3: 917,933 km (0.073 R)
• M4: 1,588,879 km (0.087 R)
• M5: 4,580,388 km (0.096 R)
• M6: 7,318,029 km (0.1 R)
• M7: 10,842,554 km (0.103 R)
• M8: 16,163,003 km (0.067 R)
• M9: 17,655,541 km (0.095 R)
• M10: 19,737,494 km (0.106 R)
• M11: 23,805,958 km (0.081 R)
• M12: 24,381,910 km (0.076 R)
• M13: 29,800,345 km (0.093 R)
• M14: 34,380,433 km (0.1 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.11 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 919.6

Radius: 7.7

Gravity: 15.51 G

Time & Orbit

Eccentricity (e): 0.241

Orbit Range: 6.91 AU - 11.31 AU

Year: 17754 Days

Day: 24.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 34.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 68,870,020 km

• M1: 95,743 km (0.084 R)
• M2: 687,701 km (0.066 R)
• M3: 1,334,862 km (0.109 R)
• M4: 1,832,275 km (0.043 R)
• M5: 2,609,436 km (0.092 R)
• M6: 3,059,276 km (0.065 R)
• M7: 4,795,809 km (0.095 R)
• M8: 6,425,677 km (0.095 R)
• M9: 6,691,812 km (0.057 R)
• M10: 7,198,949 km (0.119 R)
• M11: 8,394,385 km (0.069 R)
• M12: 10,983,476 km (0.094 R)
• M13: 13,261,851 km (0.062 R)
• M14: 16,242,738 km (0.1 R)
• M15: 17,758,165 km (0.052 R)
• M16: 22,155,744 km (0.088 R)
• M17: 23,910,078 km (0.108 R)
• M18: 24,984,340 km (0.094 R)
• M19: 31,601,054 km (0.089 R)
• M20: 35,035,073 km (0.087 R)
• M21: 35,584,546 km (0.104 R)
• M22: 39,002,858 km (0.102 R)
• M23: 39,297,266 km (0.112 R)
• M24: 40,489,711 km (0.117 R)
• M25: 56,733,048 km (0.058 R)
• M26: 60,589,082 km (0.058 R)
• M27: 61,978,847 km (0.043 R)
• M28: 62,379,769 km (0.105 R)
• M29: 64,410,710 km (0.086 R)
• M30: 65,028,399 km (0.079 R)
• M31: 66,066,758 km (0.111 R)
• M32: 74,322,167 km (0.06 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.91 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 514.6

Radius: 7.9

Gravity: 8.25 G

Time & Orbit

Eccentricity (e): 0.032

Orbit Range: 9.59 AU - 10.23 AU

Year: 20143 Days

Day: 23.4 Hours

Environment

Temp: -226 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 68,870,020 km

• M1: 117,285 km (0.101 R)
• M2: 398,828 km (0.088 R)
• M3: 1,605,484 km (0.11 R)
• M4: 2,351,080 km (0.104 R)
• M5: 3,282,476 km (0.092 R)
• M6: 4,440,663 km (0.075 R)
• M7: 4,777,109 km (0.036 R)
• M8: 5,539,460 km (0.102 R)
• M9: 7,211,964 km (0.101 R)
• M10: 8,983,203 km (0.105 R)
• M11: 9,577,704 km (0.103 R)
• M12: 10,140,791 km (0.12 R)
• M13: 12,026,771 km (0.11 R)
• M14: 16,241,392 km (0.092 R)
• M15: 19,511,452 km (0.048 R)
• M16: 20,415,621 km (0.069 R)
• M17: 25,253,617 km (0.078 R)
• M18: 27,096,214 km (0.113 R)
• M19: 28,564,367 km (0.042 R)
• M20: 40,068,144 km (0.112 R)
• M21: 43,475,385 km (0.066 R)
• M22: 50,354,643 km (0.062 R)
• M23: 55,741,214 km (0.101 R)
• M24: 63,830,868 km (0.096 R)
• M25: 67,641,724 km (0.113 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 371.2

Radius: 3.5

Gravity: 30.3 G

Time & Orbit

Eccentricity (e): 0.127

Orbit Range: 9.56 AU - 12.34 AU

Year: 23396 Days

Day: 23.8 Hours

Environment

Temp: -242 °C

Axial Tilt: 17.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 68,870,020 km

• M1: 43,533 km (0.086 R)
• M2: 212,878 km (0.089 R)
• M3: 412,441 km (0.111 R)
• M4: 585,975 km (0.112 R)
• M5: 699,370 km (0.094 R)
• M6: 1,068,129 km (0.061 R)
• M7: 1,554,471 km (0.115 R)
• M8: 1,739,524 km (0.066 R)
• M9: 1,883,288 km (0.097 R)
• M10: 2,944,236 km (0.113 R)
• M11: 3,070,945 km (0.043 R)
• M12: 4,253,217 km (0.06 R)
• M13: 4,514,864 km (0.086 R)
• M14: 7,944,245 km (0.091 R)
• M15: 8,907,506 km (0.031 R)
• M16: 9,833,218 km (0.091 R)
• M17: 10,583,002 km (0.073 R)
• M18: 11,002,026 km (0.071 R)
• M19: 11,123,798 km (0.104 R)
• M20: 11,619,865 km (0.098 R)
• M21: 12,523,287 km (0.105 R)
• M22: 17,417,830 km (0.077 R)
• M23: 19,384,593 km (0.113 R)
• M24: 21,494,372 km (0.12 R)
• M25: 24,160,505 km (0.108 R)
• M26: 28,274,297 km (0.117 R)
• M27: 30,615,952 km (0.091 R)
• M28: 30,736,229 km (0.099 R)
• M29: 38,270,576 km (0.08 R)
• M30: 47,750,892 km (0.092 R)
• M31: 50,553,309 km (0.052 R)
• M32: 55,942,124 km (0.111 R)
• M33: 59,053,610 km (0.116 R)
• M34: 59,427,156 km (0.085 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: 500 - 16,525 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit