🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.38 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.76 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 541.2

Radius: 10.8

Gravity: 4.64 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 0.64 AU - 0.88 AU

Year: 421 Days

Day: 5.4 Hours

Environment

Temp: -139 °C

Axial Tilt: 24.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 88,939,467 km

• M1: 134,788 km (0.104 R)
• M2: 684,261 km (0.115 R)
• M3: 1,176,138 km (0.084 R)
• M4: 1,822,850 km (0.057 R)
• M5: 2,202,679 km (0.114 R)
• M6: 2,822,463 km (0.088 R)
• M7: 3,323,915 km (0.117 R)
• M8: 5,117,743 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 523.1

Radius: 10.1

Gravity: 5.13 G

Time & Orbit

Eccentricity (e): 0.151

Orbit Range: 1.09 AU - 1.47 AU

Year: 921 Days

Day: 7.5 Hours

Environment

Temp: -169 °C

Axial Tilt: 36.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 88,939,467 km

• M1: 125,662 km (0.081 R)
• M2: 471,832 km (0.119 R)
• M3: 933,640 km (0.117 R)
• M4: 1,328,728 km (0.113 R)
• M5: 1,647,671 km (0.049 R)
• M6: 2,124,888 km (0.108 R)
• M7: 2,634,867 km (0.114 R)
• M8: 3,358,771 km (0.062 R)
• M9: 4,225,691 km (0.11 R)
• M10: 4,806,580 km (0.071 R)
• M11: 5,689,057 km (0.064 R)
• M12: 6,697,646 km (0.074 R)
• M13: 7,164,840 km (0.117 R)
• M14: 7,606,154 km (0.071 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 998.8

Radius: 12.3

Gravity: 6.6 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 2.13 AU - 2.65 AU

Year: 2349 Days

Day: 5.9 Hours

Environment

Temp: -201 °C

Axial Tilt: 16.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 88,939,467 km

• M1: 153,039 km (0.103 R)
• M2: 638,633 km (0.086 R)
• M3: 1,168,359 km (0.11 R)
• M4: 1,809,087 km (0.111 R)
• M5: 2,368,284 km (0.105 R)
• M6: 3,263,328 km (0.067 R)
• M7: 4,701,711 km (0.12 R)
• M8: 5,167,858 km (0.089 R)
• M9: 6,112,419 km (0.109 R)
• M10: 6,813,285 km (0.078 R)
• M11: 7,289,605 km (0.12 R)
• M12: 8,013,210 km (0.078 R)
• M13: 9,241,408 km (0.096 R)
• M14: 11,898,267 km (0.116 R)
• M15: 12,767,879 km (0.093 R)
• M16: 13,679,528 km (0.076 R)
• M17: 14,731,800 km (0.09 R)
• M18: 15,992,312 km (0.12 R)
• M19: 19,723,881 km (0.087 R)
• M20: 20,694,173 km (0.073 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.61 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 286.3

Radius: 9.9

Gravity: 2.92 G

Time & Orbit

Eccentricity (e): 0.147

Orbit Range: 2.23 AU - 2.99 AU

Year: 2681 Days

Day: 7.1 Hours

Environment

Temp: -196 °C

Axial Tilt: 4.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 88,939,467 km

• M1: 123,269 km (0.119 R)
• M2: 502,499 km (0.098 R)
• M3: 812,616 km (0.065 R)
• M4: 1,179,280 km (0.116 R)
• M5: 2,026,303 km (0.094 R)
• M6: 2,360,804 km (0.077 R)
• M7: 2,676,755 km (0.097 R)
• M8: 4,567,672 km (0.072 R)
• M9: 5,083,934 km (0.053 R)
• M10: 5,434,591 km (0.104 R)
• M11: 5,824,743 km (0.067 R)
• M12: 7,028,557 km (0.057 R)
• M13: 10,262,414 km (0.12 R)
• M14: 11,112,878 km (0.063 R)
• M15: 11,630,187 km (0.098 R)
• M16: 13,693,740 km (0.03 R)
• M17: 14,245,607 km (0.101 R)
• M18: 14,724,021 km (0.092 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.94 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 148.4

Radius: 9.8

Gravity: 1.55 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 3.16 AU - 4.72 AU

Year: 4973 Days

Day: 5.1 Hours

Environment

Temp: -208 °C

Axial Tilt: 9.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 88,939,467 km

• M1: 122,221 km (0.1 R)
• M2: 564,134 km (0.119 R)
• M3: 1,236,426 km (0.036 R)
• M4: 2,325,050 km (0.097 R)
• M5: 3,307,609 km (0.045 R)
• M6: 3,789,164 km (0.089 R)
• M7: 4,503,494 km (0.092 R)
• M8: 6,410,568 km (0.063 R)
• M9: 9,139,532 km (0.11 R)
• M10: 10,458,088 km (0.103 R)
• M11: 11,697,207 km (0.03 R)
• M12: 13,205,303 km (0.054 R)
• M13: 15,076,025 km (0.064 R)
• M14: 16,000,240 km (0.114 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 55

Radius: 6.1

Gravity: 1.48 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 5.99 AU - 7.01 AU

Year: 10537 Days

Day: 20.5 Hours

Environment

Temp: -224 °C

Axial Tilt: 36 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 88,939,467 km

• M1: 75,846 km (0.078 R)
• M2: 544,237 km (0.07 R)
• M3: 736,470 km (0.06 R)
• M4: 1,038,508 km (0.076 R)
• M5: 1,380,788 km (0.088 R)
• M6: 1,918,293 km (0.092 R)
• M7: 2,632,474 km (0.104 R)
• M8: 4,217,314 km (0.091 R)
• M9: 4,894,992 km (0.102 R)
• M10: 5,111,909 km (0.048 R)
• M11: 6,126,631 km (0.078 R)
• M12: 6,814,333 km (0.075 R)
• M13: 7,973,417 km (0.068 R)
• M14: 8,756,861 km (0.099 R)
• M15: 9,331,466 km (0.089 R)
• M16: 13,178,974 km (0.106 R)
• M17: 14,615,862 km (0.075 R)
• M18: 16,744,340 km (0.11 R)
• M19: 17,797,359 km (0.096 R)
• M20: 18,138,891 km (0.118 R)
• M21: 18,893,912 km (0.114 R)
• M22: 20,280,535 km (0.114 R)
• M23: 20,715,715 km (0.093 R)
• M24: 21,157,178 km (0.112 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.53 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 34.1

Radius: 5.7

Gravity: 1.05 G

Time & Orbit

Eccentricity (e): 0.11

Orbit Range: 6.7 AU - 8.36 AU

Year: 13138 Days

Day: 19.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 88,939,467 km

• M1: 70,909 km (0.111 R)
• M2: 314,156 km (0.099 R)
• M3: 657,333 km (0.072 R)
• M4: 1,022,053 km (0.096 R)
• M5: 1,330,972 km (0.083 R)
• M6: 1,632,711 km (0.071 R)
• M7: 1,818,063 km (0.065 R)
• M8: 2,785,812 km (0.096 R)
• M9: 4,511,423 km (0.065 R)
• M10: 4,926,707 km (0.106 R)
• M11: 5,417,687 km (0.111 R)
• M12: 5,753,833 km (0.112 R)
• M13: 8,752,523 km (0.045 R)
• M14: 13,667,261 km (0.107 R)
• M15: 16,272,808 km (0.114 R)
• M16: 17,748,142 km (0.093 R)
• M17: 20,278,291 km (0.065 R)

Planet 8 - Ice Giant

Semi-Major Axis: 10.27 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 999.3

Radius: 3.5

Gravity: 81.58 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 9.89 AU - 10.65 AU

Year: 20926 Days

Day: 24.9 Hours

Environment

Temp: -240 °C

Axial Tilt: 25.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 88,939,467 km

• M1: 43,982 km (0.063 R)
• M2: 544,835 km (0.102 R)
• M3: 672,742 km (0.1 R)
• M4: 1,016,069 km (0.117 R)
• M5: 1,642,285 km (0.083 R)
• M6: 2,541,069 km (0.116 R)
• M7: 3,476,206 km (0.112 R)
• M8: 3,630,740 km (0.11 R)
• M9: 4,509,927 km (0.044 R)
• M10: 4,656,832 km (0.044 R)
• M11: 4,769,031 km (0.099 R)
• M12: 4,883,024 km (0.051 R)
• M13: 7,260,284 km (0.081 R)
• M14: 9,272,974 km (0.113 R)
• M15: 10,185,072 km (0.112 R)
• M16: 10,825,500 km (0.081 R)
• M17: 17,749,488 km (0.038 R)
• M18: 18,487,155 km (0.092 R)
• M19: 24,909,990 km (0.088 R)
• M20: 26,422,574 km (0.116 R)
• M21: 33,223,742 km (0.099 R)
• M22: 41,103,661 km (0.1 R)
• M23: 43,540,610 km (0.092 R)
• M24: 43,872,717 km (0.102 R)
• M25: 46,244,442 km (0.115 R)
• M26: 57,777,989 km (0.07 R)
• M27: 65,281,668 km (0.089 R)
• M28: 76,020,252 km (0.103 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 394 - 11,512 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit