🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.7 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 1.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 721.9

Radius: 11.9

Gravity: 5.1 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.31 AU - 1.47 AU

Year: 1075 Days

Day: 5.5 Hours

Environment

Temp: -176 °C

Axial Tilt: 23.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 64,809,511 km

• M1: 147,952 km (0.094 R)
• M2: 651,349 km (0.029 R)
• M3: 1,132,905 km (0.101 R)
• M4: 1,591,273 km (0.109 R)
• M5: 2,173,657 km (0.105 R)
• M6: 2,642,048 km (0.089 R)
• M7: 3,040,577 km (0.089 R)
• M8: 3,753,560 km (0.074 R)
• M9: 4,125,161 km (0.095 R)
• M10: 4,503,644 km (0.096 R)
• M11: 5,331,219 km (0.081 R)
• M12: 6,759,430 km (0.073 R)
• M13: 7,487,224 km (0.064 R)
• M14: 7,948,434 km (0.097 R)
• M15: 8,483,097 km (0.078 R)
• M16: 8,956,425 km (0.04 R)
• M17: 9,895,151 km (0.114 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 523

Radius: 13.6

Gravity: 2.83 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 1.75 AU - 1.75 AU

Year: 1519 Days

Day: 11.3 Hours

Environment

Temp: -193 °C

Axial Tilt: 11.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 64,809,511 km

• M1: 169,195 km (0.1 R)
• M2: 652,696 km (0.084 R)
• M3: 1,421,928 km (0.066 R)
• M4: 1,939,088 km (0.107 R)
• M5: 2,569,194 km (0.104 R)
• M6: 3,030,554 km (0.077 R)
• M7: 3,500,889 km (0.11 R)
• M8: 3,969,131 km (0.117 R)
• M9: 4,479,559 km (0.12 R)
• M10: 5,719,725 km (0.089 R)
• M11: 6,326,793 km (0.113 R)
• M12: 10,095,762 km (0.112 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 510.8

Radius: 11.8

Gravity: 3.67 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 1.8 AU - 2.04 AU

Year: 1745 Days

Day: 8.4 Hours

Environment

Temp: -188 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 64,809,511 km

• M1: 146,756 km (0.102 R)
• M2: 554,559 km (0.104 R)
• M3: 949,348 km (0.106 R)
• M4: 1,330,075 km (0.114 R)
• M5: 1,959,583 km (0.075 R)
• M6: 2,568,595 km (0.095 R)
• M7: 3,520,337 km (0.089 R)
• M8: 3,902,859 km (0.056 R)
• M9: 4,596,395 km (0.118 R)
• M10: 5,096,351 km (0.113 R)
• M11: 6,568,095 km (0.115 R)
• M12: 7,362,459 km (0.102 R)
• M13: 7,796,891 km (0.116 R)
• M14: 8,191,082 km (0.059 R)
• M15: 9,805,692 km (0.048 R)
• M16: 10,366,085 km (0.053 R)
• M17: 10,878,009 km (0.05 R)
• M18: 11,805,516 km (0.118 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 915.3

Radius: 13.3

Gravity: 5.17 G

Time & Orbit

Eccentricity (e): 0.21

Orbit Range: 1.79 AU - 2.75 AU

Year: 2244 Days

Day: 14.3 Hours

Environment

Temp: -192 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 64,809,511 km

• M1: 165,455 km (0.107 R)
• M2: 608,115 km (0.09 R)
• M3: 1,176,587 km (0.044 R)
• M4: 1,649,167 km (0.101 R)
• M5: 2,439,343 km (0.09 R)
• M6: 2,930,323 km (0.077 R)
• M7: 3,505,527 km (0.107 R)
• M8: 3,956,116 km (0.05 R)
• M9: 4,595,796 km (0.096 R)
• M10: 5,497,871 km (0.077 R)
• M11: 6,909,178 km (0.075 R)
• M12: 8,286,824 km (0.088 R)
• M13: 10,135,854 km (0.11 R)
• M14: 11,744,480 km (0.111 R)
• M15: 12,502,044 km (0.058 R)
• M16: 13,158,180 km (0.104 R)
• M17: 14,826,795 km (0.109 R)
• M18: 15,512,402 km (0.08 R)
• M19: 18,245,704 km (0.077 R)
• M20: 18,919,493 km (0.047 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 71.6

Radius: 8.6

Gravity: 0.97 G

Time & Orbit

Eccentricity (e): 0.027

Orbit Range: 3.17 AU - 3.35 AU

Year: 3861 Days

Day: 14.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 64,809,511 km

• M1: 192,233 km (0.062 R)
• M2: 470,784 km (0.097 R)
• M3: 843,882 km (0.106 R)
• M4: 1,644,230 km (0.068 R)
• M5: 1,913,806 km (0.107 R)
• M6: 2,494,694 km (0.053 R)
• M7: 4,973,980 km (0.117 R)
• M8: 10,088,880 km (0.11 R)
• M9: 11,901,857 km (0.079 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.37 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 290.4

Radius: 13.3

Gravity: 1.64 G

Time & Orbit

Eccentricity (e): 0.001

Orbit Range: 5.36 AU - 5.38 AU

Year: 8163 Days

Day: 6.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 27.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 64,809,511 km

• M1: 165,455 km (0.112 R)
• M2: 741,108 km (0.103 R)
• M3: 1,200,224 km (0.096 R)
• M4: 1,686,716 km (0.105 R)
• M5: 2,108,283 km (0.037 R)
• M6: 3,151,578 km (0.07 R)
• M7: 3,647,196 km (0.075 R)
• M8: 4,539,248 km (0.098 R)
• M9: 5,202,266 km (0.119 R)
• M10: 6,722,629 km (0.104 R)
• M11: 8,917,080 km (0.043 R)
• M12: 10,713,751 km (0.111 R)
• M13: 13,154,440 km (0.072 R)
• M14: 14,117,551 km (0.102 R)
• M15: 15,649,583 km (0.051 R)
• M16: 16,124,257 km (0.074 R)
• M17: 17,542,445 km (0.079 R)
• M18: 19,583,558 km (0.103 R)
• M19: 20,484,885 km (0.089 R)
• M20: 22,221,567 km (0.063 R)
• M21: 22,746,057 km (0.07 R)
• M22: 25,575,402 km (0.092 R)
• M23: 29,074,645 km (0.106 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.12 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 841.7

Radius: 7.2

Gravity: 16.24 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 5.29 AU - 6.95 AU

Year: 9932 Days

Day: 16.7 Hours

Environment

Temp: -224 °C

Axial Tilt: 38.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 64,809,511 km

• M1: 89,609 km (0.108 R)
• M2: 318,643 km (0.065 R)
• M3: 726,597 km (0.084 R)
• M4: 1,346,680 km (0.066 R)
• M5: 1,699,432 km (0.085 R)
• M6: 2,449,964 km (0.076 R)
• M7: 4,347,165 km (0.036 R)
• M8: 4,958,870 km (0.12 R)
• M9: 6,738,337 km (0.081 R)
• M10: 7,945,741 km (0.12 R)
• M11: 9,001,154 km (0.07 R)
• M12: 9,687,509 km (0.088 R)
• M13: 11,612,684 km (0.094 R)
• M14: 12,544,978 km (0.08 R)
• M15: 13,029,376 km (0.076 R)
• M16: 15,228,465 km (0.062 R)
• M17: 19,773,547 km (0.091 R)
• M18: 22,396,746 km (0.093 R)
• M19: 23,289,995 km (0.03 R)
• M20: 26,406,867 km (0.078 R)
• M21: 27,403,637 km (0.116 R)
• M22: 29,471,977 km (0.069 R)
• M23: 35,813,281 km (0.093 R)
• M24: 37,779,297 km (0.094 R)
• M25: 39,816,221 km (0.119 R)
• M26: 40,993,557 km (0.057 R)
• M27: 43,143,577 km (0.12 R)
• M28: 46,940,371 km (0.044 R)
• M29: 49,741,890 km (0.111 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.6 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 728.9

Radius: 4.4

Gravity: 37.65 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 6.02 AU - 9.18 AU

Year: 13745 Days

Day: 16.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 64,809,511 km

• M1: 55,052 km (0.094 R)
• M2: 210,185 km (0.069 R)
• M3: 425,157 km (0.098 R)
• M4: 1,021,903 km (0.077 R)
• M5: 1,166,714 km (0.106 R)
• M6: 1,498,522 km (0.108 R)
• M7: 1,925,923 km (0.069 R)
• M8: 2,187,420 km (0.029 R)
• M9: 2,536,581 km (0.098 R)
• M10: 3,371,188 km (0.09 R)
• M11: 3,530,659 km (0.097 R)
• M12: 4,099,580 km (0.109 R)
• M13: 4,500,652 km (0.065 R)
• M14: 5,899,392 km (0.081 R)
• M15: 6,210,256 km (0.099 R)
• M16: 8,406,802 km (0.06 R)
• M17: 9,466,404 km (0.055 R)
• M18: 10,165,325 km (0.113 R)
• M19: 12,341,824 km (0.116 R)
• M20: 12,530,916 km (0.079 R)
• M21: 12,979,560 km (0.117 R)
• M22: 17,668,855 km (0.087 R)
• M23: 19,737,494 km (0.108 R)
• M24: 19,909,532 km (0.088 R)
• M25: 23,373,919 km (0.092 R)
• M26: 23,566,601 km (0.032 R)
• M27: 29,740,655 km (0.034 R)
• M28: 34,239,811 km (0.112 R)
• M29: 40,405,637 km (0.085 R)
• M30: 54,030,413 km (0.086 R)
• M31: 55,215,976 km (0.093 R)
• M32: 56,939,642 km (0.113 R)
• M33: 60,132,061 km (0.081 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.66 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 324.8

Radius: 6.5

Gravity: 7.69 G

Time & Orbit

Eccentricity (e): 0.184

Orbit Range: 8.7 AU - 12.62 AU

Year: 22832 Days

Day: 17.3 Hours

Environment

Temp: -239 °C

Axial Tilt: 23.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 64,809,511 km

• M1: 81,082 km (0.097 R)
• M2: 706,401 km (0.09 R)
• M3: 986,897 km (0.096 R)
• M4: 1,935,497 km (0.075 R)
• M5: 3,717,357 km (0.093 R)
• M6: 5,049,826 km (0.068 R)
• M7: 5,746,503 km (0.062 R)
• M8: 8,922,167 km (0.074 R)
• M9: 9,662,975 km (0.118 R)
• M10: 11,027,308 km (0.112 R)
• M11: 14,202,523 km (0.079 R)
• M12: 15,808,007 km (0.111 R)
• M13: 19,116,214 km (0.078 R)
• M14: 19,811,545 km (0.096 R)
• M15: 23,444,230 km (0.092 R)
• M16: 32,727,227 km (0.076 R)
• M17: 33,847,266 km (0.083 R)
• M18: 38,308,873 km (0.032 R)
• M19: 39,412,905 km (0.061 R)
• M20: 46,954,134 km (0.111 R)
• M21: 61,376,715 km (0.042 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: 437 - 11,549 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit