🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.44 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 121.7

Radius: 13.4

Gravity: 0.68 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 0.78 AU - 0.98 AU

Year: 550 Days

Day: 8.9 Hours

Environment

Temp: -168 °C

Axial Tilt: 14.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 57,030,367 km

• M1: 166,652 km (0.096 R)
• M2: 658,829 km (0.107 R)
• M3: 1,099,993 km (0.039 R)
• M4: 1,525,300 km (0.057 R)
• M5: 2,157,800 km (0.077 R)
• M6: 2,710,414 km (0.053 R)
• M7: 3,267,068 km (0.064 R)
• M8: 3,744,883 km (0.1 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 180.9

Radius: 14.9

Gravity: 0.81 G

Time & Orbit

Eccentricity (e): 0.183

Orbit Range: 0.92 AU - 1.32 AU

Year: 790 Days

Day: 8.5 Hours

Environment

Temp: -183 °C

Axial Tilt: 18.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 57,030,367 km

• M1: 185,352 km (0.025 R)
• M2: 648,806 km (0.12 R)
• M3: 1,121,834 km (0.118 R)
• M4: 1,588,131 km (0.112 R)
• M5: 2,264,463 km (0.116 R)
• M6: 2,795,236 km (0.093 R)
• M7: 3,340,670 km (0.116 R)
• M8: 4,073,700 km (0.101 R)
• M9: 5,002,254 km (0.057 R)
• M10: 5,469,149 km (0.063 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 351.5

Radius: 10.5

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.56 AU - 2.04 AU

Year: 1610 Days

Day: 9.7 Hours

Environment

Temp: -200 °C

Axial Tilt: 22.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 57,030,367 km

• M1: 130,599 km (0.112 R)
• M2: 1,087,128 km (0.099 R)
• M3: 2,019,122 km (0.114 R)
• M4: 2,617,065 km (0.097 R)
• M5: 3,242,683 km (0.11 R)
• M6: 3,998,452 km (0.083 R)
• M7: 4,848,617 km (0.114 R)
• M8: 5,377,445 km (0.045 R)
• M9: 6,164,330 km (0.11 R)
• M10: 6,761,973 km (0.116 R)
• M11: 7,448,328 km (0.113 R)
• M12: 8,873,996 km (0.113 R)
• M13: 9,367,669 km (0.052 R)
• M14: 10,033,679 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 447.5

Radius: 13.8

Gravity: 2.35 G

Time & Orbit

Eccentricity (e): 0.104

Orbit Range: 3.01 AU - 3.71 AU

Year: 4107 Days

Day: 7.4 Hours

Environment

Temp: -217 °C

Axial Tilt: 17.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 57,030,367 km

• M1: 253,269 km (0.073 R)
• M2: 694,134 km (0.035 R)
• M3: 1,132,905 km (0.105 R)
• M4: 1,642,435 km (0.093 R)
• M5: 2,088,237 km (0.109 R)
• M6: 2,773,694 km (0.079 R)
• M7: 3,644,803 km (0.117 R)
• M8: 4,134,436 km (0.107 R)
• M9: 4,598,938 km (0.048 R)
• M10: 5,122,979 km (0.081 R)
• M11: 5,766,998 km (0.061 R)
• M12: 6,207,115 km (0.07 R)
• M13: 6,879,258 km (0.1 R)
• M14: 7,599,572 km (0.042 R)
• M15: 8,266,330 km (0.036 R)
• M16: 9,832,619 km (0.1 R)
• M17: 10,788,849 km (0.032 R)
• M18: 11,502,879 km (0.109 R)
• M19: 12,203,596 km (0.078 R)
• M20: 12,747,683 km (0.1 R)
• M21: 14,129,818 km (0.031 R)
• M22: 14,780,868 km (0.112 R)
• M23: 16,468,930 km (0.103 R)
• M24: 17,359,786 km (0.045 R)
• M25: 18,815,672 km (0.061 R)
• M26: 19,913,272 km (0.104 R)
• M27: 21,836,951 km (0.091 R)

Planet 5 - Gas Giant

Semi-Major Axis: 5.02 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 376.5

Radius: 13.7

Gravity: 2.01 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 3.89 AU - 6.15 AU

Year: 7500 Days

Day: 10.2 Hours

Environment

Temp: -216 °C

Axial Tilt: 29.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 57,030,367 km

• M1: 170,392 km (0.062 R)
• M2: 662,120 km (0.104 R)
• M3: 1,159,084 km (0.116 R)
• M4: 1,662,182 km (0.087 R)
• M5: 3,167,585 km (0.108 R)
• M6: 4,273,712 km (0.11 R)
• M7: 4,730,135 km (0.06 R)
• M8: 5,593,464 km (0.098 R)
• M9: 6,047,644 km (0.086 R)
• M10: 7,670,182 km (0.082 R)
• M11: 10,579,113 km (0.069 R)
• M12: 12,005,229 km (0.04 R)
• M13: 13,077,547 km (0.085 R)
• M14: 15,470,963 km (0.077 R)
• M15: 16,067,111 km (0.069 R)
• M16: 16,493,464 km (0.107 R)
• M17: 17,115,642 km (0.118 R)
• M18: 19,144,339 km (0.109 R)
• M19: 19,762,328 km (0.072 R)
• M20: 25,277,103 km (0.108 R)
• M21: 25,937,728 km (0.043 R)
• M22: 26,525,198 km (0.079 R)
• M23: 32,412,623 km (0.095 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 731.3

Radius: 11.9

Gravity: 5.16 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 4.97 AU - 5.19 AU

Year: 7635 Days

Day: 9.5 Hours

Environment

Temp: -220 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 57,030,367 km

• M1: 148,251 km (0.102 R)
• M2: 536,458 km (0.116 R)
• M3: 1,111,961 km (0.089 R)
• M4: 1,837,062 km (0.074 R)
• M5: 2,438,894 km (0.084 R)
• M6: 3,020,531 km (0.115 R)
• M7: 3,574,342 km (0.057 R)
• M8: 4,435,876 km (0.12 R)
• M9: 4,857,742 km (0.096 R)
• M10: 5,245,051 km (0.101 R)
• M11: 6,048,541 km (0.082 R)
• M12: 8,311,508 km (0.078 R)
• M13: 9,177,829 km (0.083 R)
• M14: 15,622,954 km (0.084 R)
• M15: 18,475,337 km (0.105 R)
• M16: 21,658,331 km (0.089 R)
• M17: 25,723,952 km (0.052 R)
• M18: 31,693,655 km (0.07 R)
• M19: 32,735,904 km (0.073 R)
• M20: 36,112,028 km (0.074 R)
• M21: 36,677,359 km (0.081 R)
• M22: 38,762,155 km (0.066 R)

Planet 7 - Ice Giant

Semi-Major Axis: 6.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 698.2

Radius: 5.9

Gravity: 20.06 G

Time & Orbit

Eccentricity (e): 0.12

Orbit Range: 6.14 AU - 7.82 AU

Year: 12297 Days

Day: 23.4 Hours

Environment

Temp: -222 °C

Axial Tilt: 29.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 57,030,367 km

• M1: 73,901 km (0.109 R)
• M2: 401,221 km (0.049 R)
• M3: 607,667 km (0.109 R)
• M4: 1,421,928 km (0.099 R)
• M5: 2,610,483 km (0.101 R)
• M6: 3,828,958 km (0.113 R)
• M7: 5,045,338 km (0.084 R)
• M8: 5,455,685 km (0.091 R)
• M9: 6,499,579 km (0.095 R)
• M10: 7,803,773 km (0.102 R)
• M11: 8,259,149 km (0.11 R)
• M12: 8,446,296 km (0.111 R)
• M13: 13,638,389 km (0.093 R)
• M14: 20,200,948 km (0.106 R)
• M15: 31,236,185 km (0.093 R)
• M16: 35,000,067 km (0.092 R)
• M17: 35,737,884 km (0.117 R)
• M18: 40,788,757 km (0.094 R)
• M19: 51,010,480 km (0.052 R)

Planet 8 - Ice Giant

Semi-Major Axis: 8.28 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 903.7

Radius: 5.7

Gravity: 27.81 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 7.74 AU - 8.82 AU

Year: 15888 Days

Day: 17.8 Hours

Environment

Temp: -228 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (34)

Outer Limit: 57,030,367 km

• M1: 82,129 km (0.116 R)
• M2: 625,917 km (0.104 R)
• M3: 998,865 km (0.118 R)
• M4: 1,256,622 km (0.108 R)
• M5: 1,494,034 km (0.086 R)
• M6: 2,060,112 km (0.061 R)
• M7: 2,263,715 km (0.106 R)
• M8: 2,480,632 km (0.044 R)
• M9: 3,084,558 km (0.056 R)
• M10: 4,215,668 km (0.112 R)
• M11: 4,579,191 km (0.099 R)
• M12: 5,181,921 km (0.054 R)
• M13: 6,329,935 km (0.107 R)
• M14: 6,940,892 km (0.071 R)
• M15: 7,122,504 km (0.109 R)
• M16: 8,228,930 km (0.119 R)
• M17: 11,393,823 km (0.101 R)
• M18: 15,439,847 km (0.093 R)
• M19: 15,906,293 km (0.081 R)
• M20: 20,817,142 km (0.091 R)
• M21: 24,493,659 km (0.083 R)
• M22: 24,703,994 km (0.061 R)
• M23: 25,881,928 km (0.076 R)
• M24: 28,233,756 km (0.114 R)
• M25: 29,878,435 km (0.109 R)
• M26: 30,846,333 km (0.027 R)
• M27: 36,821,272 km (0.065 R)
• M28: 38,356,296 km (0.115 R)
• M29: 44,297,425 km (0.084 R)
• M30: 45,873,140 km (0.085 R)
• M31: 50,994,473 km (0.11 R)
• M32: 51,854,661 km (0.098 R)
• M33: 55,754,528 km (0.116 R)
• M34: 70,938,861 km (0.079 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.67 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 398.1

Radius: 7.6

Gravity: 6.89 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 7.78 AU - 9.56 AU

Year: 17024 Days

Day: 17.6 Hours

Environment

Temp: -233 °C

Axial Tilt: 1.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (16)

Outer Limit: 57,030,367 km

• M1: 117,584 km (0.107 R)
• M2: 472,879 km (0.107 R)
• M3: 891,454 km (0.06 R)
• M4: 1,153,998 km (0.062 R)
• M5: 1,616,405 km (0.115 R)
• M6: 2,412,266 km (0.083 R)
• M7: 3,121,060 km (0.069 R)
• M8: 4,342,976 km (0.071 R)
• M9: 7,514,600 km (0.062 R)
• M10: 9,210,143 km (0.028 R)
• M11: 15,802,771 km (0.072 R)
• M12: 19,290,645 km (0.093 R)
• M13: 23,447,970 km (0.101 R)
• M14: 28,702,446 km (0.071 R)
• M15: 32,064,957 km (0.112 R)
• M16: 41,600,774 km (0.104 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 222 - 16,698 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit