🌌 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: 0.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 662.4

Radius: 9.8

Gravity: 6.9 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 0.69 AU - 0.81 AU

Year: 426 Days

Day: 8.2 Hours

Environment

Temp: -152 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 64,557,349 km

• M1: 121,922 km (0.097 R)
• M2: 550,371 km (0.091 R)
• M3: 1,406,669 km (0.077 R)
• M4: 1,793,978 km (0.059 R)
• M5: 2,156,453 km (0.114 R)
• M6: 2,860,162 km (0.063 R)
• M7: 3,914,079 km (0.095 R)
• M8: 4,289,869 km (0.095 R)
• M9: 4,601,930 km (0.084 R)
• M10: 5,036,661 km (0.105 R)
• M11: 5,352,313 km (0.087 R)
• M12: 5,714,788 km (0.091 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 555.1

Radius: 10.9

Gravity: 4.67 G

Time & Orbit

Eccentricity (e): 0.226

Orbit Range: 0.65 AU - 1.03 AU

Year: 505 Days

Day: 8.1 Hours

Environment

Temp: -149 °C

Axial Tilt: 1.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 64,557,349 km

• M1: 135,984 km (0.116 R)
• M2: 620,233 km (0.025 R)
• M3: 999,463 km (0.063 R)
• M4: 1,343,090 km (0.071 R)
• M5: 1,767,648 km (0.098 R)
• M6: 2,290,493 km (0.066 R)
• M7: 2,990,611 km (0.053 R)
• M8: 3,893,434 km (0.103 R)
• M9: 5,062,841 km (0.11 R)
• M10: 5,534,074 km (0.104 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 148.5

Radius: 11.8

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.075

Orbit Range: 1.17 AU - 1.35 AU

Year: 928 Days

Day: 5.7 Hours

Environment

Temp: -162 °C

Axial Tilt: 49.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 64,557,349 km

• M1: 151,842 km (0.048 R)
• M2: 531,820 km (0.057 R)
• M3: 1,585,737 km (0.054 R)
• M4: 2,103,795 km (0.116 R)
• M5: 2,535,834 km (0.092 R)
• M6: 4,108,706 km (0.045 R)
• M7: 4,896,039 km (0.039 R)
• M8: 5,562,946 km (0.096 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 338.7

Radius: 14

Gravity: 1.73 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.15 AU - 1.63 AU

Year: 1075 Days

Day: 13.4 Hours

Environment

Temp: -165 °C

Axial Tilt: 28.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 64,557,349 km

• M1: 174,431 km (0.107 R)
• M2: 668,254 km (0.067 R)
• M3: 1,381,985 km (0.06 R)
• M4: 2,024,059 km (0.095 R)
• M5: 2,501,127 km (0.085 R)
• M6: 3,191,671 km (0.028 R)
• M7: 4,006,979 km (0.105 R)
• M8: 4,735,670 km (0.089 R)
• M9: 5,330,023 km (0.117 R)
• M10: 7,191,918 km (0.101 R)
• M11: 8,173,130 km (0.105 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 332.4

Radius: 11.4

Gravity: 2.56 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 2.49 AU - 2.55 AU

Year: 2624 Days

Day: 14.5 Hours

Environment

Temp: -199 °C

Axial Tilt: 43.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 64,557,349 km

• M1: 141,819 km (0.104 R)
• M2: 759,060 km (0.055 R)
• M3: 1,283,251 km (0.088 R)
• M4: 1,791,584 km (0.078 R)
• M5: 2,147,178 km (0.037 R)
• M6: 2,700,840 km (0.119 R)
• M7: 3,126,595 km (0.043 R)
• M8: 5,123,577 km (0.084 R)
• M9: 6,166,424 km (0.06 R)
• M10: 6,621,351 km (0.094 R)
• M11: 8,423,108 km (0.053 R)
• M12: 10,495,787 km (0.073 R)
• M13: 11,219,541 km (0.088 R)
• M14: 11,669,681 km (0.111 R)
• M15: 12,092,744 km (0.06 R)
• M16: 13,216,224 km (0.085 R)
• M17: 14,451,753 km (0.097 R)
• M18: 14,940,040 km (0.07 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.67 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 841.7

Radius: 8.4

Gravity: 11.93 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 3.96 AU - 5.38 AU

Year: 6620 Days

Day: 13.6 Hours

Environment

Temp: -214 °C

Axial Tilt: 26.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 64,557,349 km

• M1: 104,419 km (0.09 R)
• M2: 459,565 km (0.093 R)
• M3: 853,157 km (0.089 R)
• M4: 1,123,480 km (0.106 R)
• M5: 1,390,961 km (0.076 R)
• M6: 1,874,162 km (0.074 R)
• M7: 2,188,467 km (0.03 R)
• M8: 2,844,304 km (0.119 R)
• M9: 3,175,215 km (0.059 R)
• M10: 4,514,265 km (0.107 R)
• M11: 5,024,693 km (0.119 R)
• M12: 6,026,999 km (0.064 R)
• M13: 6,898,257 km (0.076 R)
• M14: 7,851,195 km (0.097 R)
• M15: 8,421,762 km (0.06 R)
• M16: 8,760,152 km (0.115 R)
• M17: 10,884,591 km (0.042 R)
• M18: 12,660,468 km (0.088 R)
• M19: 15,422,194 km (0.096 R)
• M20: 19,720,889 km (0.107 R)
• M21: 20,469,477 km (0.047 R)
• M22: 23,322,009 km (0.117 R)
• M23: 25,277,103 km (0.084 R)
• M24: 27,063,900 km (0.101 R)
• M25: 27,988,116 km (0.103 R)
• M26: 29,704,602 km (0.097 R)
• M27: 31,490,053 km (0.104 R)
• M28: 32,512,255 km (0.032 R)
• M29: 33,240,946 km (0.045 R)
• M30: 34,407,809 km (0.118 R)
• M31: 36,935,565 km (0.115 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 824

Radius: 11.2

Gravity: 6.57 G

Time & Orbit

Eccentricity (e): 0.017

Orbit Range: 5.74 AU - 5.94 AU

Year: 9258 Days

Day: 8.4 Hours

Environment

Temp: -213 °C

Axial Tilt: 3.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 64,557,349 km

• M1: 139,425 km (0.114 R)
• M2: 531,372 km (0.052 R)
• M3: 1,068,727 km (0.095 R)
• M4: 1,550,133 km (0.041 R)
• M5: 2,209,561 km (0.066 R)
• M6: 3,206,481 km (0.105 R)
• M7: 4,005,184 km (0.112 R)
• M8: 4,598,190 km (0.096 R)
• M9: 4,994,026 km (0.099 R)
• M10: 5,512,682 km (0.12 R)
• M11: 6,658,003 km (0.107 R)
• M12: 8,085,466 km (0.09 R)
• M13: 8,664,409 km (0.072 R)
• M14: 9,855,657 km (0.103 R)
• M15: 10,884,891 km (0.101 R)
• M16: 11,425,687 km (0.107 R)
• M17: 12,098,279 km (0.079 R)
• M18: 16,418,815 km (0.097 R)
• M19: 18,312,275 km (0.074 R)
• M20: 19,311,589 km (0.087 R)
• M21: 19,944,538 km (0.118 R)
• M22: 24,768,770 km (0.036 R)
• M23: 27,252,095 km (0.117 R)
• M24: 29,168,892 km (0.048 R)
• M25: 30,318,851 km (0.103 R)
• M26: 31,607,487 km (0.115 R)
• M27: 32,486,524 km (0.065 R)
• M28: 33,382,017 km (0.109 R)
• M29: 34,064,183 km (0.103 R)
• M30: 36,886,646 km (0.066 R)
• M31: 42,327,072 km (0.045 R)
• M32: 46,143,613 km (0.116 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.41 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 430.8

Radius: 4.7

Gravity: 19.5 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 5.91 AU - 6.91 AU

Year: 10646 Days

Day: 22.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 7.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 64,557,349 km

• M1: 69,713 km (0.049 R)
• M2: 233,522 km (0.06 R)
• M3: 380,427 km (0.055 R)
• M4: 585,526 km (0.03 R)
• M5: 767,437 km (0.111 R)
• M6: 1,112,111 km (0.095 R)
• M7: 1,433,447 km (0.117 R)
• M8: 1,724,265 km (0.059 R)
• M9: 1,876,107 km (0.05 R)
• M10: 2,536,881 km (0.118 R)
• M11: 2,733,901 km (0.113 R)
• M12: 4,641,124 km (0.093 R)
• M13: 5,697,285 km (0.093 R)
• M14: 6,245,861 km (0.103 R)
• M15: 6,424,331 km (0.025 R)
• M16: 8,487,884 km (0.103 R)
• M17: 8,795,756 km (0.032 R)
• M18: 9,065,481 km (0.088 R)
• M19: 11,215,203 km (0.061 R)
• M20: 12,351,698 km (0.075 R)
• M21: 12,918,973 km (0.026 R)
• M22: 13,150,700 km (0.104 R)
• M23: 13,802,199 km (0.035 R)
• M24: 15,819,676 km (0.093 R)
• M25: 19,503,673 km (0.067 R)
• M26: 19,962,340 km (0.1 R)
• M27: 20,980,802 km (0.081 R)
• M28: 23,548,500 km (0.118 R)
• M29: 24,596,284 km (0.102 R)
• M30: 26,133,252 km (0.113 R)
• M31: 28,999,697 km (0.119 R)
• M32: 29,999,759 km (0.112 R)
• M33: 32,280,827 km (0.045 R)
• M34: 35,347,583 km (0.107 R)
• M35: 39,934,852 km (0.059 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.14 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 721

Radius: 4.3

Gravity: 38.99 G

Time & Orbit

Eccentricity (e): 0.228

Orbit Range: 6.28 AU - 10 AU

Year: 15235 Days

Day: 21 Hours

Environment

Temp: -223 °C

Axial Tilt: 27.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 64,557,349 km

• M1: 53,556 km (0.09 R)
• M2: 201,808 km (0.094 R)
• M3: 509,979 km (0.087 R)
• M4: 912,098 km (0.092 R)
• M5: 1,337,255 km (0.12 R)
• M6: 1,919,789 km (0.104 R)
• M7: 2,350,482 km (0.055 R)
• M8: 2,588,791 km (0.117 R)
• M9: 3,763,284 km (0.092 R)
• M10: 6,291,189 km (0.07 R)
• M11: 7,876,926 km (0.081 R)
• M12: 8,311,508 km (0.104 R)
• M13: 10,552,783 km (0.117 R)
• M14: 16,883,616 km (0.084 R)
• M15: 17,686,208 km (0.11 R)
• M16: 19,367,090 km (0.114 R)
• M17: 21,059,790 km (0.115 R)
• M18: 28,931,630 km (0.095 R)
• M19: 31,256,381 km (0.117 R)
• M20: 41,224,835 km (0.086 R)
• M21: 42,383,171 km (0.08 R)
• M22: 45,220,893 km (0.039 R)
• M23: 48,023,609 km (0.117 R)
• M24: 51,105,325 km (0.114 R)
• M25: 61,323,309 km (0.105 R)
• M26: 61,885,946 km (0.112 R)
• M27: 64,557,316 km (0.081 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 321 - 14,305 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit