🌌 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: 712.6

Radius: 12.1

Gravity: 4.87 G

Time & Orbit

Eccentricity (e): 0.124

Orbit Range: 0.51 AU - 0.65 AU

Year: 305 Days

Day: 7.2 Hours

Environment

Temp: -144 °C

Axial Tilt: 41.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,023,477 km

• M1: 150,495 km (0.036 R)
• M2: 536,159 km (0.082 R)
• M3: 1,122,134 km (0.11 R)
• M4: 1,619,247 km (0.079 R)
• M5: 2,010,296 km (0.094 R)
• M6: 2,387,732 km (0.092 R)
• M7: 3,162,349 km (0.114 R)
• M8: 3,842,122 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 609.9

Radius: 12.2

Gravity: 4.1 G

Time & Orbit

Eccentricity (e): 0.215

Orbit Range: 0.56 AU - 0.86 AU

Year: 413 Days

Day: 11.2 Hours

Environment

Temp: -168 °C

Axial Tilt: 28 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 55,023,477 km

• M1: 151,692 km (0.06 R)
• M2: 537,356 km (0.108 R)
• M3: 1,033,422 km (0.095 R)
• M4: 1,466,059 km (0.083 R)
• M5: 2,126,534 km (0.09 R)
• M6: 2,597,617 km (0.113 R)
• M7: 4,255,910 km (0.032 R)
• M8: 4,996,120 km (0.051 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 236.7

Radius: 10.5

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 0.84 AU - 1.06 AU

Year: 639 Days

Day: 6.1 Hours

Environment

Temp: -180 °C

Axial Tilt: 5.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 55,023,477 km

• M1: 229,334 km (0.03 R)
• M2: 556,504 km (0.063 R)
• M3: 902,823 km (0.039 R)
• M4: 2,088,835 km (0.105 R)
• M5: 3,229,070 km (0.071 R)
• M6: 3,929,786 km (0.106 R)
• M7: 5,159,631 km (0.116 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 70.4

Radius: 13.4

Gravity: 0.39 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 0.97 AU - 1.03 AU

Year: 690 Days

Day: 7.1 Hours

Environment

Temp: -177 °C

Axial Tilt: 47.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (5)

Outer Limit: 55,023,477 km

• M1: 167,250 km (0.081 R)
• M2: 864,077 km (0.115 R)
• M3: 2,150,619 km (0.077 R)
• M4: 2,808,102 km (0.104 R)
• M5: 3,422,051 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 899.5

Radius: 10.8

Gravity: 7.71 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 2.31 AU - 2.49 AU

Year: 2566 Days

Day: 6.3 Hours

Environment

Temp: -206 °C

Axial Tilt: 32.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 55,023,477 km

• M1: 134,638 km (0.03 R)
• M2: 1,192,594 km (0.081 R)
• M3: 1,564,943 km (0.106 R)
• M4: 2,131,470 km (0.092 R)
• M5: 2,704,580 km (0.045 R)
• M6: 3,305,814 km (0.113 R)
• M7: 5,081,840 km (0.043 R)
• M8: 6,641,098 km (0.099 R)
• M9: 7,359,018 km (0.117 R)
• M10: 8,600,681 km (0.108 R)
• M11: 9,127,564 km (0.045 R)
• M12: 10,053,276 km (0.033 R)
• M13: 10,479,929 km (0.099 R)
• M14: 11,245,571 km (0.119 R)
• M15: 11,621,062 km (0.056 R)
• M16: 12,221,697 km (0.059 R)
• M17: 14,685,125 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 817

Radius: 9.5

Gravity: 9.05 G

Time & Orbit

Eccentricity (e): 0.014

Orbit Range: 5.09 AU - 5.23 AU

Year: 8091 Days

Day: 5.8 Hours

Environment

Temp: -233 °C

Axial Tilt: 17.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 55,023,477 km

• M1: 123,269 km (0.113 R)
• M2: 449,542 km (0.048 R)
• M3: 1,084,435 km (0.096 R)
• M4: 1,773,034 km (0.091 R)
• M5: 2,087,489 km (0.075 R)
• M6: 2,384,141 km (0.039 R)
• M7: 3,691,627 km (0.054 R)
• M8: 4,210,133 km (0.091 R)
• M9: 4,865,521 km (0.103 R)
• M10: 6,783,366 km (0.095 R)
• M11: 7,204,633 km (0.087 R)
• M12: 8,099,678 km (0.111 R)
• M13: 9,962,919 km (0.081 R)
• M14: 10,357,259 km (0.099 R)
• M15: 12,831,009 km (0.108 R)
• M16: 14,704,723 km (0.038 R)
• M17: 18,912,312 km (0.12 R)
• M18: 22,995,437 km (0.072 R)
• M19: 23,338,614 km (0.117 R)
• M20: 24,566,663 km (0.101 R)
• M21: 27,534,535 km (0.097 R)
• M22: 28,018,933 km (0.102 R)
• M23: 31,570,237 km (0.105 R)
• M24: 33,618,531 km (0.082 R)
• M25: 33,949,890 km (0.094 R)
• M26: 34,619,042 km (0.089 R)
• M27: 38,699,024 km (0.103 R)
• M28: 43,610,771 km (0.077 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.92 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 655.6

Radius: 5.7

Gravity: 20.18 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 5.47 AU - 6.37 AU

Year: 9942 Days

Day: 17.6 Hours

Environment

Temp: -232 °C

Axial Tilt: 4.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 55,023,477 km

• M1: 74,350 km (0.068 R)
• M2: 267,032 km (0.081 R)
• M3: 469,737 km (0.067 R)
• M4: 822,788 km (0.119 R)
• M5: 1,124,527 km (0.083 R)
• M6: 1,539,512 km (0.083 R)
• M7: 2,649,079 km (0.048 R)
• M8: 3,703,295 km (0.093 R)
• M9: 4,211,180 km (0.119 R)
• M10: 4,734,324 km (0.098 R)
• M11: 5,979,277 km (0.036 R)
• M12: 6,303,456 km (0.117 R)
• M13: 6,947,774 km (0.113 R)
• M14: 7,676,764 km (0.105 R)
• M15: 8,545,180 km (0.086 R)
• M16: 9,622,733 km (0.081 R)
• M17: 10,017,971 km (0.065 R)
• M18: 14,779,372 km (0.093 R)
• M19: 15,371,929 km (0.107 R)
• M20: 15,843,761 km (0.11 R)
• M21: 16,048,860 km (0.11 R)
• M22: 17,029,773 km (0.115 R)
• M23: 17,462,111 km (0.066 R)
• M24: 19,577,125 km (0.107 R)
• M25: 22,111,313 km (0.119 R)
• M26: 24,036,937 km (0.118 R)
• M27: 26,742,415 km (0.105 R)
• M28: 28,118,416 km (0.089 R)
• M29: 30,060,196 km (0.051 R)
• M30: 37,377,926 km (0.081 R)
• M31: 38,847,126 km (0.093 R)
• M32: 39,220,373 km (0.09 R)
• M33: 41,380,716 km (0.103 R)
• M34: 45,246,923 km (0.117 R)
• M35: 45,660,262 km (0.107 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 331.4

Radius: 4.2

Gravity: 18.79 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 7.01 AU - 10.37 AU

Year: 17682 Days

Day: 19.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 35 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 55,023,477 km

• M1: 52,359 km (0.071 R)
• M2: 336,894 km (0.082 R)
• M3: 590,912 km (0.081 R)
• M4: 747,541 km (0.097 R)
• M5: 931,995 km (0.089 R)
• M6: 1,737,878 km (0.07 R)
• M7: 2,009,847 km (0.083 R)
• M8: 3,388,841 km (0.084 R)
• M9: 5,264,499 km (0.082 R)
• M10: 5,869,472 km (0.098 R)
• M11: 6,055,871 km (0.11 R)
• M12: 6,207,863 km (0.097 R)
• M13: 8,756,412 km (0.087 R)
• M14: 8,901,971 km (0.097 R)
• M15: 9,348,521 km (0.083 R)
• M16: 10,125,681 km (0.081 R)
• M17: 10,394,060 km (0.108 R)
• M18: 12,346,462 km (0.061 R)
• M19: 12,838,938 km (0.106 R)
• M20: 14,734,493 km (0.079 R)
• M21: 18,907,376 km (0.069 R)
• M22: 19,396,411 km (0.093 R)
• M23: 20,484,736 km (0.099 R)
• M24: 27,777,482 km (0.095 R)
• M25: 27,986,919 km (0.047 R)
• M26: 28,409,084 km (0.093 R)
• M27: 31,031,834 km (0.049 R)
• M28: 33,811,512 km (0.101 R)
• M29: 34,531,377 km (0.087 R)
• M30: 35,877,758 km (0.097 R)
• M31: 36,501,132 km (0.091 R)
• M32: 37,641,517 km (0.087 R)
• M33: 42,163,561 km (0.104 R)
• M34: 43,277,766 km (0.12 R)
• M35: 46,590,312 km (0.091 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 231 - 17,067 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit