🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.43 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 238.9

Radius: 11.2

Gravity: 1.9 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 0.84 AU - 0.88 AU

Year: 551 Days

Day: 8.6 Hours

Environment

Temp: -166 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 83,724,222 km

• M1: 139,276 km (0.113 R)
• M2: 493,224 km (0.108 R)
• M3: 886,218 km (0.065 R)
• M4: 1,371,064 km (0.077 R)
• M5: 1,858,604 km (0.091 R)
• M6: 2,622,899 km (0.083 R)
• M7: 3,114,328 km (0.095 R)
• M8: 4,218,959 km (0.077 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 808.6

Radius: 14.4

Gravity: 3.9 G

Time & Orbit

Eccentricity (e): 0.212

Orbit Range: 1.21 AU - 1.85 AU

Year: 1306 Days

Day: 10.5 Hours

Environment

Temp: -191 °C

Axial Tilt: 3.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 83,724,222 km

• M1: 210,783 km (0.075 R)
• M2: 740,061 km (0.086 R)
• M3: 1,464,114 km (0.095 R)
• M4: 2,874,972 km (0.032 R)
• M5: 3,927,842 km (0.119 R)
• M6: 5,781,210 km (0.099 R)
• M7: 6,401,442 km (0.092 R)
• M8: 6,964,529 km (0.109 R)
• M9: 8,562,085 km (0.109 R)
• M10: 9,216,575 km (0.09 R)
• M11: 12,622,320 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 2.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 339.6

Radius: 13.6

Gravity: 1.84 G

Time & Orbit

Eccentricity (e): 0.061

Orbit Range: 2.12 AU - 2.4 AU

Year: 2345 Days

Day: 11.2 Hours

Environment

Temp: -198 °C

Axial Tilt: 38.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 83,724,222 km

• M1: 191,336 km (0.09 R)
• M2: 627,563 km (0.112 R)
• M3: 1,123,330 km (0.105 R)
• M4: 3,009,012 km (0.073 R)
• M5: 3,485,630 km (0.092 R)
• M6: 4,030,765 km (0.068 R)
• M7: 5,580,001 km (0.113 R)
• M8: 6,064,698 km (0.086 R)
• M9: 7,039,777 km (0.076 R)
• M10: 7,690,378 km (0.115 R)
• M11: 8,619,829 km (0.072 R)
• M12: 10,186,568 km (0.059 R)

Planet 4 - Gas Giant

Semi-Major Axis: 3.29 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 215.2

Radius: 8.8

Gravity: 2.78 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 2.83 AU - 3.75 AU

Year: 4119 Days

Day: 12.2 Hours

Environment

Temp: -223 °C

Axial Tilt: 28.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 83,724,222 km

• M1: 111,301 km (0.107 R)
• M2: 435,629 km (0.106 R)
• M3: 871,557 km (0.113 R)
• M4: 1,309,430 km (0.091 R)
• M5: 3,482,638 km (0.119 R)
• M6: 3,773,157 km (0.059 R)
• M7: 4,943,162 km (0.085 R)
• M8: 5,287,686 km (0.099 R)
• M9: 6,076,666 km (0.046 R)
• M10: 6,392,167 km (0.096 R)
• M11: 8,105,213 km (0.108 R)
• M12: 8,455,571 km (0.084 R)
• M13: 8,949,543 km (0.11 R)
• M14: 9,393,250 km (0.097 R)
• M15: 11,237,642 km (0.09 R)
• M16: 12,121,018 km (0.097 R)
• M17: 13,754,926 km (0.064 R)
• M18: 15,049,247 km (0.113 R)
• M19: 16,072,047 km (0.094 R)
• M20: 17,825,035 km (0.068 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 737.5

Radius: 8.3

Gravity: 10.71 G

Time & Orbit

Eccentricity (e): 0.054

Orbit Range: 4.12 AU - 4.6 AU

Year: 6284 Days

Day: 9.5 Hours

Environment

Temp: -217 °C

Axial Tilt: 18.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 83,724,222 km

• M1: 103,522 km (0.11 R)
• M2: 465,399 km (0.118 R)
• M3: 1,184,217 km (0.084 R)
• M4: 1,478,775 km (0.04 R)
• M5: 2,028,996 km (0.092 R)
• M6: 2,351,978 km (0.051 R)
• M7: 2,671,968 km (0.063 R)
• M8: 2,980,588 km (0.096 R)
• M9: 3,578,680 km (0.116 R)
• M10: 3,930,684 km (0.106 R)
• M11: 4,254,264 km (0.094 R)
• M12: 6,115,262 km (0.08 R)
• M13: 7,261,481 km (0.103 R)
• M14: 7,944,096 km (0.081 R)
• M15: 8,381,819 km (0.111 R)
• M16: 11,354,030 km (0.117 R)
• M17: 12,804,082 km (0.076 R)
• M18: 13,685,961 km (0.058 R)
• M19: 13,969,748 km (0.07 R)
• M20: 14,548,991 km (0.111 R)
• M21: 15,265,266 km (0.047 R)
• M22: 16,639,023 km (0.066 R)
• M23: 16,897,379 km (0.035 R)
• M24: 17,422,168 km (0.086 R)
• M25: 19,630,532 km (0.077 R)
• M26: 29,763,843 km (0.057 R)
• M27: 30,336,653 km (0.107 R)
• M28: 32,099,365 km (0.067 R)
• M29: 33,722,502 km (0.099 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 316.9

Radius: 9.2

Gravity: 3.74 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 4.63 AU - 4.67 AU

Year: 6921 Days

Day: 6 Hours

Environment

Temp: -219 °C

Axial Tilt: 28.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 83,724,222 km

• M1: 115,490 km (0.045 R)
• M2: 863,778 km (0.11 R)
• M3: 1,190,949 km (0.12 R)
• M4: 1,485,058 km (0.07 R)
• M5: 1,802,056 km (0.075 R)
• M6: 2,149,721 km (0.098 R)
• M7: 5,215,730 km (0.098 R)
• M8: 7,688,433 km (0.064 R)
• M9: 10,109,824 km (0.104 R)
• M10: 13,151,298 km (0.066 R)
• M11: 18,300,158 km (0.11 R)
• M12: 26,647,420 km (0.083 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 626.6

Radius: 11.7

Gravity: 4.58 G

Time & Orbit

Eccentricity (e): 0.048

Orbit Range: 4.58 AU - 5.04 AU

Year: 7282 Days

Day: 13.1 Hours

Environment

Temp: -230 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 83,724,222 km

• M1: 156,330 km (0.051 R)
• M2: 572,810 km (0.029 R)
• M3: 1,060,499 km (0.072 R)
• M4: 1,823,897 km (0.108 R)
• M5: 2,637,560 km (0.074 R)
• M6: 3,254,801 km (0.047 R)
• M7: 4,065,322 km (0.053 R)
• M8: 4,559,145 km (0.076 R)
• M9: 6,489,705 km (0.085 R)
• M10: 8,047,917 km (0.089 R)
• M11: 8,702,707 km (0.08 R)
• M12: 10,118,800 km (0.113 R)
• M13: 11,734,457 km (0.105 R)
• M14: 14,679,590 km (0.105 R)
• M15: 15,533,046 km (0.065 R)
• M16: 16,940,912 km (0.042 R)
• M17: 21,441,414 km (0.115 R)
• M18: 22,540,061 km (0.101 R)
• M19: 23,511,250 km (0.101 R)
• M20: 24,934,524 km (0.091 R)
• M21: 25,710,937 km (0.106 R)
• M22: 27,312,083 km (0.107 R)
• M23: 27,860,210 km (0.103 R)
• M24: 28,790,110 km (0.069 R)
• M25: 30,810,280 km (0.104 R)
• M26: 31,205,517 km (0.117 R)
• M27: 33,857,738 km (0.094 R)
• M28: 36,216,298 km (0.085 R)
• M29: 37,435,820 km (0.035 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 525.4

Radius: 7.1

Gravity: 10.42 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 7.75 AU - 10.39 AU

Year: 18855 Days

Day: 17 Hours

Environment

Temp: -243 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 83,724,222 km

• M1: 88,263 km (0.097 R)
• M2: 446,699 km (0.071 R)
• M3: 681,418 km (0.088 R)
• M4: 978,520 km (0.069 R)
• M5: 1,223,561 km (0.05 R)
• M6: 1,652,757 km (0.116 R)
• M7: 1,875,957 km (0.106 R)
• M8: 2,178,594 km (0.096 R)
• M9: 2,763,521 km (0.061 R)
• M10: 3,313,593 km (0.072 R)
• M11: 5,823,995 km (0.102 R)
• M12: 6,726,070 km (0.066 R)
• M13: 7,670,780 km (0.114 R)
• M14: 10,101,147 km (0.061 R)
• M15: 11,770,061 km (0.077 R)
• M16: 12,150,339 km (0.1 R)
• M17: 12,670,042 km (0.101 R)
• M18: 14,751,397 km (0.065 R)
• M19: 18,117,349 km (0.105 R)
• M20: 19,490,359 km (0.11 R)
• M21: 21,209,388 km (0.106 R)
• M22: 23,822,563 km (0.095 R)
• M23: 26,534,474 km (0.116 R)
• M24: 32,069,595 km (0.116 R)
• M25: 38,327,573 km (0.119 R)
• M26: 39,303,250 km (0.096 R)
• M27: 39,868,132 km (0.103 R)
• M28: 61,313,884 km (0.106 R)
• M29: 62,839,633 km (0.04 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.19 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 724.1

Radius: 3.3

Gravity: 66.49 G

Time & Orbit

Eccentricity (e): 0.189

Orbit Range: 8.26 AU - 12.12 AU

Year: 22453 Days

Day: 23.1 Hours

Environment

Temp: -229 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 83,724,222 km

• M1: 40,990 km (0.109 R)
• M2: 275,559 km (0.108 R)
• M3: 390,301 km (0.086 R)
• M4: 720,613 km (0.063 R)
• M5: 1,072,617 km (0.065 R)
• M6: 1,897,799 km (0.083 R)
• M7: 2,681,691 km (0.098 R)
• M8: 2,834,880 km (0.088 R)
• M9: 2,940,346 km (0.038 R)
• M10: 3,388,541 km (0.088 R)
• M11: 3,816,690 km (0.117 R)
• M12: 4,110,351 km (0.105 R)
• M13: 6,787,704 km (0.106 R)
• M14: 7,121,008 km (0.093 R)
• M15: 12,927,500 km (0.051 R)
• M16: 17,140,625 km (0.058 R)
• M17: 19,411,670 km (0.081 R)
• M18: 23,881,505 km (0.06 R)
• M19: 25,777,508 km (0.116 R)
• M20: 27,771,498 km (0.081 R)
• M21: 32,595,282 km (0.117 R)
• M22: 35,063,198 km (0.083 R)
• M23: 36,631,133 km (0.107 R)
• M24: 38,543,592 km (0.052 R)
• M25: 40,521,725 km (0.073 R)
• M26: 58,046,367 km (0.107 R)
• M27: 64,780,067 km (0.091 R)
• M28: 65,630,082 km (0.094 R)
• M29: 74,774,850 km (0.09 R)
• M30: 75,945,005 km (0.167 R)
• M31: 83,724,244 km (0.044 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 353 - 14,380 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit