🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.37 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.74 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 38.6

Radius: 8.9

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 0.67 AU - 0.81 AU

Year: 424 Days

Day: 6.4 Hours

Environment

Temp: -161 °C

Axial Tilt: 50 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (4)

Outer Limit: 70,387,961 km

• M1: 110,702 km (0.114 R)
• M2: 389,403 km (0.116 R)
• M3: 752,776 km (0.102 R)
• M4: 1,058,555 km (0.064 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 889.1

Radius: 13.1

Gravity: 5.18 G

Time & Orbit

Eccentricity (e): 0.078

Orbit Range: 0.73 AU - 0.85 AU

Year: 468 Days

Day: 9 Hours

Environment

Temp: -170 °C

Axial Tilt: 39.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 70,387,961 km

• M1: 162,912 km (0.086 R)
• M2: 609,911 km (0.039 R)
• M3: 1,122,283 km (0.117 R)
• M4: 2,025,854 km (0.078 R)
• M5: 2,446,673 km (0.108 R)
• M6: 3,225,031 km (0.07 R)
• M7: 3,845,114 km (0.112 R)
• M8: 4,306,624 km (0.066 R)
• M9: 5,342,140 km (0.091 R)
• M10: 5,775,525 km (0.054 R)
• M11: 6,194,848 km (0.063 R)
• M12: 6,752,848 km (0.051 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.5 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 474.7

Radius: 14.3

Gravity: 2.32 G

Time & Orbit

Eccentricity (e): 0.065

Orbit Range: 1.4 AU - 1.6 AU

Year: 1225 Days

Day: 13.5 Hours

Environment

Temp: -192 °C

Axial Tilt: 24.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 70,387,961 km

• M1: 178,021 km (0.101 R)
• M2: 634,145 km (0.042 R)
• M3: 1,205,310 km (0.12 R)
• M4: 1,907,822 km (0.041 R)
• M5: 2,489,458 km (0.073 R)
• M6: 2,937,653 km (0.106 R)
• M7: 3,571,350 km (0.107 R)
• M8: 4,016,703 km (0.065 R)
• M9: 5,210,344 km (0.083 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 363.3

Radius: 14

Gravity: 1.85 G

Time & Orbit

Eccentricity (e): 0.059

Orbit Range: 1.45 AU - 1.63 AU

Year: 1274 Days

Day: 7.2 Hours

Environment

Temp: -199 °C

Axial Tilt: 21.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 70,387,961 km

• M1: 183,257 km (0.108 R)
• M2: 620,682 km (0.101 R)
• M3: 1,083,238 km (0.113 R)
• M4: 1,635,554 km (0.071 R)
• M5: 2,269,250 km (0.058 R)
• M6: 6,818,970 km (0.099 R)
• M7: 8,114,039 km (0.111 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.9 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 872.6

Radius: 8.7

Gravity: 11.53 G

Time & Orbit

Eccentricity (e): 0.029

Orbit Range: 1.84 AU - 1.96 AU

Year: 1746 Days

Day: 10.4 Hours

Environment

Temp: -199 °C

Axial Tilt: 21.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 70,387,961 km

• M1: 108,159 km (0.075 R)
• M2: 425,606 km (0.044 R)
• M3: 730,935 km (0.102 R)
• M4: 1,014,274 km (0.107 R)
• M5: 1,481,917 km (0.107 R)
• M6: 2,075,970 km (0.052 R)
• M7: 2,415,258 km (0.091 R)
• M8: 2,762,175 km (0.099 R)
• M9: 3,047,757 km (0.115 R)
• M10: 3,804,723 km (0.092 R)
• M11: 4,198,464 km (0.116 R)
• M12: 4,765,590 km (0.088 R)
• M13: 5,291,576 km (0.096 R)
• M14: 5,711,048 km (0.072 R)
• M15: 6,485,367 km (0.066 R)
• M16: 7,271,504 km (0.111 R)
• M17: 8,646,907 km (0.119 R)
• M18: 9,803,747 km (0.104 R)
• M19: 11,362,407 km (0.091 R)
• M20: 13,588,423 km (0.107 R)
• M21: 14,690,361 km (0.115 R)
• M22: 15,147,532 km (0.055 R)
• M23: 16,042,128 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 199.4

Radius: 8.3

Gravity: 2.89 G

Time & Orbit

Eccentricity (e): 0.028

Orbit Range: 2.21 AU - 2.33 AU

Year: 2281 Days

Day: 6.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 70,387,961 km

• M1: 103,522 km (0.078 R)
• M2: 384,018 km (0.077 R)
• M3: 866,920 km (0.111 R)
• M4: 1,323,642 km (0.093 R)
• M5: 1,599,201 km (0.033 R)
• M6: 2,408,675 km (0.059 R)
• M7: 2,918,355 km (0.105 R)
• M8: 5,490,691 km (0.117 R)
• M9: 7,145,393 km (0.057 R)
• M10: 7,476,303 km (0.062 R)
• M11: 9,929,259 km (0.046 R)
• M12: 11,133,223 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 252.6

Radius: 8.4

Gravity: 3.58 G

Time & Orbit

Eccentricity (e): 0.022

Orbit Range: 3.22 AU - 3.36 AU

Year: 3979 Days

Day: 12.1 Hours

Environment

Temp: -211 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 70,387,961 km

• M1: 104,569 km (0.119 R)
• M2: 379,679 km (0.03 R)
• M3: 660,774 km (0.093 R)
• M4: 1,184,666 km (0.062 R)
• M5: 1,595,312 km (0.117 R)
• M6: 1,999,974 km (0.095 R)
• M7: 2,586,398 km (0.059 R)
• M8: 3,921,708 km (0.116 R)
• M9: 4,240,202 km (0.115 R)
• M10: 4,532,965 km (0.039 R)
• M11: 5,020,505 km (0.059 R)
• M12: 5,616,502 km (0.042 R)
• M13: 6,474,446 km (0.042 R)
• M14: 7,093,183 km (0.057 R)
• M15: 8,126,306 km (0.118 R)
• M16: 11,581,568 km (0.118 R)
• M17: 12,620,525 km (0.048 R)
• M18: 13,947,757 km (0.108 R)
• M19: 14,410,314 km (0.12 R)
• M20: 16,721,900 km (0.118 R)
• M21: 18,101,642 km (0.098 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 655.5

Radius: 13.7

Gravity: 3.49 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 4.42 AU - 4.62 AU

Year: 6408 Days

Day: 8.5 Hours

Environment

Temp: -212 °C

Axial Tilt: 32.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 70,387,961 km

• M1: 170,392 km (0.11 R)
• M2: 987,645 km (0.081 R)
• M3: 1,605,036 km (0.11 R)
• M4: 2,457,145 km (0.117 R)
• M5: 3,046,261 km (0.041 R)
• M6: 3,962,249 km (0.071 R)
• M7: 4,970,539 km (0.101 R)
• M8: 5,702,521 km (0.09 R)
• M9: 6,175,550 km (0.1 R)
• M10: 7,641,908 km (0.027 R)
• M11: 8,416,975 km (0.115 R)
• M12: 9,032,121 km (0.057 R)
• M13: 9,502,158 km (0.075 R)
• M14: 11,351,187 km (0.09 R)
• M15: 12,103,066 km (0.072 R)
• M16: 13,374,798 km (0.111 R)
• M17: 14,501,270 km (0.038 R)
• M18: 16,814,501 km (0.089 R)
• M19: 18,876,110 km (0.105 R)
• M20: 20,878,627 km (0.105 R)
• M21: 21,778,907 km (0.116 R)
• M22: 23,576,624 km (0.071 R)
• M23: 25,640,626 km (0.093 R)
• M24: 27,023,359 km (0.084 R)
• M25: 27,912,420 km (0.113 R)
• M26: 30,601,441 km (0.094 R)
• M27: 32,753,257 km (0.092 R)

Planet 9 - Gas Giant

Semi-Major Axis: 5.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 627.3

Radius: 10.6

Gravity: 5.58 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 4.91 AU - 6.45 AU

Year: 9027 Days

Day: 14.6 Hours

Environment

Temp: -217 °C

Axial Tilt: 26.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 70,387,961 km

• M1: 136,284 km (0.107 R)
• M2: 817,253 km (0.118 R)
• M3: 1,619,846 km (0.043 R)
• M4: 1,990,250 km (0.086 R)
• M5: 2,381,299 km (0.095 R)
• M6: 2,926,733 km (0.117 R)
• M7: 3,389,289 km (0.038 R)
• M8: 4,055,449 km (0.115 R)
• M9: 5,262,703 km (0.108 R)
• M10: 8,159,068 km (0.028 R)
• M11: 9,447,704 km (0.053 R)
• M12: 9,826,037 km (0.118 R)
• M13: 11,763,030 km (0.089 R)
• M14: 14,872,272 km (0.087 R)
• M15: 15,255,692 km (0.029 R)
• M16: 17,625,322 km (0.054 R)
• M17: 20,075,137 km (0.1 R)
• M18: 20,780,790 km (0.066 R)
• M19: 21,341,034 km (0.09 R)
• M20: 24,916,273 km (0.073 R)
• M21: 28,971,273 km (0.067 R)
• M22: 30,483,558 km (0.061 R)
• M23: 40,183,484 km (0.039 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 952.7

Radius: 5.1

Gravity: 36.63 G

Time & Orbit

Eccentricity (e): 0.152

Orbit Range: 6.78 AU - 9.22 AU

Year: 15089 Days

Day: 23.9 Hours

Environment

Temp: -226 °C

Axial Tilt: 14 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (33)

Outer Limit: 70,387,961 km

• M1: 63,429 km (0.115 R)
• M2: 291,417 km (0.11 R)
• M3: 545,733 km (0.078 R)
• M4: 976,126 km (0.087 R)
• M5: 1,271,133 km (0.087 R)
• M6: 1,905,727 km (0.104 R)
• M7: 2,754,994 km (0.12 R)
• M8: 3,078,575 km (0.103 R)
• M9: 3,654,526 km (0.092 R)
• M10: 4,735,072 km (0.12 R)
• M11: 6,260,521 km (0.107 R)
• M12: 7,743,934 km (0.077 R)
• M13: 9,613,309 km (0.12 R)
• M14: 10,711,956 km (0.074 R)
• M15: 11,573,190 km (0.108 R)
• M16: 15,253,597 km (0.081 R)
• M17: 16,501,393 km (0.104 R)
• M18: 19,021,968 km (0.119 R)
• M19: 26,093,758 km (0.095 R)
• M20: 26,862,542 km (0.101 R)
• M21: 29,142,114 km (0.105 R)
• M22: 29,731,530 km (0.071 R)
• M23: 31,795,083 km (0.069 R)
• M24: 37,436,718 km (0.096 R)
• M25: 39,408,268 km (0.085 R)
• M26: 41,596,436 km (0.042 R)
• M27: 48,479,434 km (0.083 R)
• M28: 50,988,938 km (0.113 R)
• M29: 55,361,684 km (0.108 R)
• M30: 59,788,584 km (0.106 R)
• M31: 62,671,784 km (0.114 R)
• M32: 62,867,159 km (0.059 R)
• M33: 68,092,612 km (0.086 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 304 - 11,247 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit