🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.13

Radius: 1.35

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.181

Orbit Range: 0.44 AU - 0.64 AU

Year: 256 Days

Day: 18.4 Hours

Environment

Temp: -116 °C

Axial Tilt: 37.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 0.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 921

Radius: 13.2

Gravity: 5.29 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.64 AU - 0.92 AU

Year: 445 Days

Day: 8 Hours

Environment

Temp: -155 °C

Axial Tilt: 38.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 86,392,089 km

• M1: 164,408 km (0.082 R)
• M2: 578,645 km (0.113 R)
• M3: 1,038,658 km (0.07 R)
• M4: 1,776,026 km (0.07 R)
• M5: 2,227,961 km (0.094 R)
• M6: 2,810,196 km (0.112 R)
• M7: 3,468,127 km (0.049 R)
• M8: 3,962,249 km (0.072 R)
• M9: 4,414,783 km (0.076 R)
• M10: 5,175,039 km (0.117 R)
• M11: 5,876,952 km (0.065 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.41 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 737.6

Radius: 9.6

Gravity: 8 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 1.38 AU - 1.44 AU

Year: 1081 Days

Day: 7.9 Hours

Environment

Temp: -180 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 86,392,089 km

• M1: 119,379 km (0.076 R)
• M2: 501,452 km (0.079 R)
• M3: 1,697,188 km (0.114 R)
• M4: 2,015,233 km (0.049 R)
• M5: 2,722,681 km (0.089 R)
• M6: 3,774,354 km (0.093 R)
• M7: 4,735,371 km (0.081 R)
• M8: 5,076,753 km (0.081 R)
• M9: 5,414,246 km (0.054 R)
• M10: 6,797,877 km (0.068 R)
• M11: 8,652,142 km (0.116 R)
• M12: 9,635,898 km (0.107 R)
• M13: 10,532,288 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 638.2

Radius: 13.3

Gravity: 3.61 G

Time & Orbit

Eccentricity (e): 0.102

Orbit Range: 1.86 AU - 2.28 AU

Year: 1923 Days

Day: 8.1 Hours

Environment

Temp: -186 °C

Axial Tilt: 33.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 86,392,089 km

• M1: 165,455 km (0.098 R)
• M2: 638,633 km (0.08 R)
• M3: 1,059,751 km (0.12 R)
• M4: 1,516,025 km (0.08 R)
• M5: 2,152,713 km (0.067 R)
• M6: 2,875,421 km (0.101 R)
• M7: 3,334,686 km (0.116 R)
• M8: 4,306,175 km (0.087 R)
• M9: 5,147,064 km (0.059 R)
• M10: 6,119,301 km (0.067 R)
• M11: 6,780,224 km (0.068 R)
• M12: 7,320,721 km (0.076 R)
• M13: 7,802,576 km (0.097 R)
• M14: 8,925,308 km (0.101 R)
• M15: 10,083,794 km (0.073 R)
• M16: 11,228,517 km (0.104 R)
• M17: 11,717,552 km (0.084 R)
• M18: 12,537,798 km (0.044 R)
• M19: 13,188,099 km (0.049 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 68.6

Radius: 12.1

Gravity: 0.47 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 4.39 AU - 6.21 AU

Year: 7878 Days

Day: 14.6 Hours

Environment

Temp: -209 °C

Axial Tilt: 27 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 86,392,089 km

• M1: 150,495 km (0.109 R)
• M2: 791,223 km (0.086 R)
• M3: 2,547,652 km (0.105 R)
• M4: 3,035,042 km (0.084 R)
• M5: 3,863,963 km (0.106 R)
• M6: 4,426,152 km (0.102 R)
• M7: 5,995,284 km (0.065 R)
• M8: 9,615,254 km (0.075 R)
• M9: 11,923,997 km (0.116 R)
• M10: 12,426,796 km (0.11 R)
• M11: 13,745,651 km (0.074 R)
• M12: 17,183,410 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 591.8

Radius: 11.5

Gravity: 4.47 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 5.49 AU - 5.71 AU

Year: 8557 Days

Day: 10.4 Hours

Environment

Temp: -219 °C

Axial Tilt: 19.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 86,392,089 km

• M1: 143,016 km (0.113 R)
• M2: 717,023 km (0.092 R)
• M3: 1,082,191 km (0.087 R)
• M4: 1,885,980 km (0.077 R)
• M5: 2,428,572 km (0.115 R)
• M6: 2,806,755 km (0.086 R)
• M7: 3,879,372 km (0.032 R)
• M8: 4,706,050 km (0.077 R)
• M9: 5,207,053 km (0.062 R)
• M10: 6,247,357 km (0.114 R)
• M11: 8,736,516 km (0.097 R)
• M12: 9,449,948 km (0.12 R)
• M13: 9,820,951 km (0.085 R)
• M14: 10,346,937 km (0.082 R)
• M15: 11,612,535 km (0.043 R)
• M16: 14,633,215 km (0.105 R)
• M17: 16,691,083 km (0.068 R)
• M18: 18,716,638 km (0.117 R)
• M19: 19,451,762 km (0.079 R)
• M20: 20,205,885 km (0.074 R)
• M21: 24,100,067 km (0.087 R)
• M22: 34,855,705 km (0.086 R)
• M23: 35,520,369 km (0.084 R)
• M24: 36,760,834 km (0.096 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.37 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 461.6

Radius: 3.6

Gravity: 35.62 G

Time & Orbit

Eccentricity (e): 0.066

Orbit Range: 6.88 AU - 7.86 AU

Year: 12919 Days

Day: 17.5 Hours

Environment

Temp: -223 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 86,392,089 km

• M1: 44,879 km (0.057 R)
• M2: 187,297 km (0.08 R)
• M3: 841,787 km (0.111 R)
• M4: 2,002,218 km (0.041 R)
• M5: 2,216,891 km (0.109 R)
• M6: 2,426,926 km (0.114 R)
• M7: 2,567,399 km (0.033 R)
• M8: 2,953,810 km (0.078 R)
• M9: 3,682,052 km (0.11 R)
• M10: 4,582,931 km (0.032 R)
• M11: 4,766,936 km (0.099 R)
• M12: 5,052,070 km (0.118 R)
• M13: 5,796,917 km (0.094 R)
• M14: 7,843,267 km (0.038 R)
• M15: 8,512,717 km (0.112 R)
• M16: 10,909,874 km (0.083 R)
• M17: 12,497,556 km (0.062 R)
• M18: 13,099,986 km (0.063 R)
• M19: 13,222,806 km (0.032 R)
• M20: 13,408,457 km (0.111 R)
• M21: 13,658,585 km (0.112 R)
• M22: 16,192,623 km (0.098 R)
• M23: 16,763,339 km (0.112 R)
• M24: 20,971,078 km (0.063 R)
• M25: 23,860,561 km (0.1 R)
• M26: 24,879,921 km (0.087 R)
• M27: 27,103,993 km (0.114 R)
• M28: 30,629,416 km (0.105 R)
• M29: 31,391,168 km (0.107 R)
• M30: 32,165,637 km (0.108 R)
• M31: 33,637,530 km (0.089 R)
• M32: 35,390,817 km (0.117 R)
• M33: 36,229,463 km (0.043 R)
• M34: 37,574,048 km (0.037 R)
• M35: 38,071,162 km (0.092 R)
• M36: 45,497,649 km (0.102 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.58 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 429.9

Radius: 5.6

Gravity: 13.71 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 8.92 AU - 10.24 AU

Year: 19145 Days

Day: 21.6 Hours

Environment

Temp: -228 °C

Axial Tilt: 36.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 86,392,089 km

• M1: 69,713 km (0.118 R)
• M2: 789,578 km (0.102 R)
• M3: 976,575 km (0.114 R)
• M4: 2,779,528 km (0.062 R)
• M5: 2,994,052 km (0.077 R)
• M6: 3,456,309 km (0.048 R)
• M7: 11,051,094 km (0.049 R)
• M8: 14,275,526 km (0.115 R)
• M9: 17,912,699 km (0.057 R)
• M10: 19,594,927 km (0.093 R)
• M11: 19,855,976 km (0.111 R)
• M12: 21,935,536 km (0.035 R)
• M13: 26,521,758 km (0.079 R)
• M14: 30,996,529 km (0.067 R)
• M15: 38,476,273 km (0.093 R)
• M16: 45,535,049 km (0.048 R)
• M17: 48,014,334 km (0.118 R)
• M18: 51,403,175 km (0.051 R)
• M19: 53,240,386 km (0.098 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.62 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 278.9

Radius: 5.8

Gravity: 8.29 G

Time & Orbit

Eccentricity (e): 0.17

Orbit Range: 8.81 AU - 12.43 AU

Year: 22346 Days

Day: 16.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (35)

Outer Limit: 86,392,089 km

• M1: 74,949 km (0.052 R)
• M2: 311,313 km (0.068 R)
• M3: 641,924 km (0.108 R)
• M4: 849,267 km (0.1 R)
• M5: 1,417,889 km (0.082 R)
• M6: 2,477,042 km (0.11 R)
• M7: 3,753,560 km (0.099 R)
• M8: 4,131,145 km (0.04 R)
• M9: 5,064,486 km (0.038 R)
• M10: 6,053,029 km (0.105 R)
• M11: 7,653,577 km (0.071 R)
• M12: 9,050,671 km (0.084 R)
• M13: 9,728,948 km (0.102 R)
• M14: 13,370,310 km (0.084 R)
• M15: 13,636,594 km (0.078 R)
• M16: 17,272,421 km (0.117 R)
• M17: 19,058,769 km (0.12 R)
• M18: 19,909,981 km (0.027 R)
• M19: 23,280,720 km (0.03 R)
• M20: 23,860,860 km (0.099 R)
• M21: 25,761,801 km (0.059 R)
• M22: 28,743,585 km (0.088 R)
• M23: 37,057,188 km (0.104 R)
• M24: 39,599,304 km (0.108 R)
• M25: 40,010,998 km (0.075 R)
• M26: 42,973,484 km (0.112 R)
• M27: 43,553,924 km (0.07 R)
• M28: 47,146,517 km (0.072 R)
• M29: 49,967,035 km (0.119 R)
• M30: 52,237,183 km (0.114 R)
• M31: 54,236,858 km (0.08 R)
• M32: 55,255,619 km (0.088 R)
• M33: 56,287,096 km (0.071 R)
• M34: 58,388,348 km (0.081 R)
• M35: 59,100,284 km (0.077 R)

Planet 10 - Ice Giant

Semi-Major Axis: 10.89 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 744.9

Radius: 3.5

Gravity: 60.81 G

Time & Orbit

Eccentricity (e): 0.171

Orbit Range: 9.03 AU - 12.75 AU

Year: 23204 Days

Day: 19 Hours

Environment

Temp: -228 °C

Axial Tilt: 1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 86,392,089 km

• M1: 43,832 km (0.114 R)
• M2: 460,313 km (0.042 R)
• M3: 901,626 km (0.117 R)
• M4: 1,959,433 km (0.084 R)
• M5: 2,260,274 km (0.065 R)
• M6: 2,469,412 km (0.115 R)
• M7: 2,591,185 km (0.118 R)
• M8: 3,467,379 km (0.073 R)
• M9: 4,488,684 km (0.073 R)
• M10: 4,856,844 km (0.087 R)
• M11: 5,405,719 km (0.089 R)
• M12: 7,601,517 km (0.093 R)
• M13: 13,266,040 km (0.089 R)
• M14: 16,631,094 km (0.04 R)
• M15: 17,330,614 km (0.095 R)
• M16: 18,976,041 km (0.065 R)
• M17: 21,634,694 km (0.083 R)
• M18: 25,666,656 km (0.083 R)
• M19: 27,919,301 km (0.118 R)
• M20: 29,534,360 km (0.1 R)
• M21: 30,948,658 km (0.103 R)
• M22: 31,210,604 km (0.032 R)
• M23: 32,407,387 km (0.113 R)
• M24: 34,189,845 km (0.112 R)
• M25: 34,469,743 km (0.045 R)
• M26: 37,501,344 km (0.094 R)
• M27: 38,550,174 km (0.084 R)
• M28: 43,758,424 km (0.05 R)
• M29: 45,256,198 km (0.105 R)
• M30: 49,953,871 km (0.118 R)
• M31: 58,287,818 km (0.059 R)
• M32: 60,507,103 km (0.105 R)
• M33: 67,282,091 km (0.116 R)
• M34: 68,828,634 km (0.05 R)
• M35: 73,843,155 km (0.092 R)
• M36: 79,585,020 km (0.07 R)

Kuiper Belt

Range: 30 - 50 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 184 - 11,400 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit