🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.34 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 352.7

Radius: 12.8

Gravity: 2.15 G

Time & Orbit

Eccentricity (e): 0.05

Orbit Range: 0.65 AU - 0.71 AU

Year: 368 Days

Day: 9.3 Hours

Environment

Temp: -126 °C

Axial Tilt: 154.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 69,461,621 km

• M1: 159,172 km (0.072 R)
• M2: 597,494 km (0.114 R)
• M3: 1,138,739 km (0.112 R)
• M4: 1,954,646 km (0.09 R)
• M5: 2,489,458 km (0.07 R)
• M6: 2,946,480 km (0.102 R)
• M7: 3,973,619 km (0.052 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 343.7

Radius: 11.3

Gravity: 2.69 G

Time & Orbit

Eccentricity (e): 0.019

Orbit Range: 1.49 AU - 1.55 AU

Year: 1229 Days

Day: 6.7 Hours

Environment

Temp: -178 °C

Axial Tilt: 8.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 69,461,621 km

• M1: 140,472 km (0.094 R)
• M2: 492,476 km (0.111 R)
• M3: 872,904 km (0.06 R)
• M4: 1,279,361 km (0.04 R)
• M5: 1,667,119 km (0.086 R)
• M6: 2,427,076 km (0.06 R)
• M7: 2,955,605 km (0.086 R)
• M8: 3,418,760 km (0.106 R)
• M9: 4,525,784 km (0.059 R)
• M10: 5,311,622 km (0.043 R)
• M11: 5,837,459 km (0.099 R)
• M12: 6,397,703 km (0.047 R)
• M13: 8,043,878 km (0.057 R)
• M14: 8,978,864 km (0.103 R)
• M15: 9,389,211 km (0.074 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 997

Radius: 13.2

Gravity: 5.72 G

Time & Orbit

Eccentricity (e): 0.108

Orbit Range: 1.48 AU - 1.84 AU

Year: 1403 Days

Day: 8.4 Hours

Environment

Temp: -183 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 69,461,621 km

• M1: 164,408 km (0.1 R)
• M2: 575,653 km (0.104 R)
• M3: 1,106,276 km (0.044 R)
• M4: 1,748,051 km (0.064 R)
• M5: 2,215,245 km (0.09 R)
• M6: 3,158,011 km (0.048 R)
• M7: 3,704,941 km (0.082 R)
• M8: 4,724,450 km (0.084 R)
• M9: 5,577,457 km (0.057 R)
• M10: 6,136,953 km (0.084 R)
• M11: 7,369,191 km (0.107 R)
• M12: 8,219,356 km (0.085 R)
• M13: 8,945,803 km (0.111 R)
• M14: 9,388,912 km (0.088 R)
• M15: 10,149,019 km (0.1 R)
• M16: 12,210,178 km (0.114 R)
• M17: 13,197,075 km (0.105 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.07 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 627.6

Radius: 10.5

Gravity: 5.69 G

Time & Orbit

Eccentricity (e): 0.002

Orbit Range: 2.07 AU - 2.07 AU

Year: 1954 Days

Day: 13.5 Hours

Environment

Temp: -188 °C

Axial Tilt: 36.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 69,461,621 km

• M1: 137,331 km (0.106 R)
• M2: 479,162 km (0.069 R)
• M3: 976,874 km (0.071 R)
• M4: 1,556,566 km (0.064 R)
• M5: 2,120,699 km (0.106 R)
• M6: 2,716,847 km (0.118 R)
• M7: 3,179,254 km (0.111 R)
• M8: 4,282,389 km (0.114 R)
• M9: 6,741,030 km (0.108 R)
• M10: 7,450,572 km (0.099 R)
• M11: 8,669,945 km (0.118 R)
• M12: 9,050,821 km (0.098 R)
• M13: 9,983,264 km (0.083 R)
• M14: 15,031,295 km (0.109 R)

Planet 5 - Gas Giant

Semi-Major Axis: 4.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 246.9

Radius: 13.8

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.136

Orbit Range: 3.69 AU - 4.85 AU

Year: 5788 Days

Day: 13.7 Hours

Environment

Temp: -203 °C

Axial Tilt: 27.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 69,461,621 km

• M1: 171,738 km (0.066 R)
• M2: 604,375 km (0.102 R)
• M3: 1,040,154 km (0.069 R)
• M4: 1,722,619 km (0.098 R)
• M5: 2,315,027 km (0.113 R)
• M6: 4,042,434 km (0.086 R)
• M7: 4,832,460 km (0.095 R)
• M8: 5,750,243 km (0.109 R)
• M9: 7,373,230 km (0.111 R)
• M10: 8,067,664 km (0.112 R)
• M11: 8,519,000 km (0.073 R)
• M12: 9,396,990 km (0.106 R)
• M13: 10,134,209 km (0.093 R)
• M14: 10,993,648 km (0.074 R)
• M15: 12,259,546 km (0.057 R)
• M16: 13,815,962 km (0.098 R)
• M17: 14,872,871 km (0.064 R)
• M18: 15,767,316 km (0.113 R)
• M19: 18,726,961 km (0.057 R)
• M20: 20,210,672 km (0.108 R)

Planet 6 - Ice Giant

Semi-Major Axis: 6.51 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 116.5

Radius: 4.8

Gravity: 5.06 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 5.08 AU - 7.94 AU

Year: 10896 Days

Day: 18.7 Hours

Environment

Temp: -230 °C

Axial Tilt: 13.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 69,461,621 km

• M1: 93,050 km (0.098 R)
• M2: 308,620 km (0.039 R)
• M3: 649,704 km (0.032 R)
• M4: 1,599,500 km (0.114 R)
• M5: 1,869,076 km (0.071 R)
• M6: 2,401,495 km (0.085 R)
• M7: 2,954,558 km (0.086 R)
• M8: 4,478,362 km (0.082 R)
• M9: 6,060,509 km (0.075 R)
• M10: 10,621,150 km (0.115 R)
• M11: 12,524,483 km (0.067 R)
• M12: 15,194,656 km (0.092 R)
• M13: 20,042,824 km (0.059 R)
• M14: 24,194,912 km (0.115 R)
• M15: 26,068,626 km (0.032 R)

Planet 7 - Ice Giant

Semi-Major Axis: 7.49 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 689.6

Radius: 7.6

Gravity: 11.94 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 6.25 AU - 8.73 AU

Year: 13447 Days

Day: 17.6 Hours

Environment

Temp: -231 °C

Axial Tilt: 21.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 69,461,621 km

• M1: 94,546 km (0.06 R)
• M2: 452,683 km (0.101 R)
• M3: 716,723 km (0.097 R)
• M4: 1,296,565 km (0.095 R)
• M5: 1,869,225 km (0.114 R)
• M6: 2,411,518 km (0.086 R)
• M7: 2,798,079 km (0.079 R)
• M8: 5,208,998 km (0.086 R)
• M9: 6,007,551 km (0.106 R)
• M10: 7,224,680 km (0.114 R)
• M11: 8,310,611 km (0.086 R)
• M12: 9,710,547 km (0.1 R)
• M13: 9,976,233 km (0.11 R)
• M14: 11,436,608 km (0.074 R)
• M15: 12,095,287 km (0.104 R)
• M16: 12,403,010 km (0.096 R)
• M17: 18,875,811 km (0.109 R)
• M18: 19,290,197 km (0.118 R)
• M19: 19,795,239 km (0.116 R)
• M20: 21,185,452 km (0.101 R)
• M21: 21,723,107 km (0.116 R)
• M22: 23,296,128 km (0.062 R)
• M23: 26,460,273 km (0.079 R)
• M24: 26,979,378 km (0.061 R)
• M25: 29,788,227 km (0.094 R)
• M26: 33,384,859 km (0.08 R)
• M27: 34,112,952 km (0.079 R)
• M28: 34,357,993 km (0.12 R)
• M29: 34,604,231 km (0.044 R)
• M30: 40,460,240 km (0.066 R)
• M31: 40,734,752 km (0.115 R)
• M32: 43,549,586 km (0.098 R)
• M33: 44,857,370 km (0.067 R)
• M34: 45,151,629 km (0.084 R)
• M35: 53,095,127 km (0.099 R)
• M36: 53,754,853 km (0.117 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.16 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 565.8

Radius: 4.7

Gravity: 25.61 G

Time & Orbit

Eccentricity (e): 0.218

Orbit Range: 7.16 AU - 11.16 AU

Year: 18187 Days

Day: 20.5 Hours

Environment

Temp: -225 °C

Axial Tilt: 43.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 69,461,621 km

• M1: 58,493 km (0.104 R)
• M2: 275,559 km (0.08 R)
• M3: 696,378 km (0.116 R)
• M4: 1,376,151 km (0.089 R)
• M5: 1,544,000 km (0.06 R)
• M6: 1,884,185 km (0.094 R)
• M7: 2,356,765 km (0.07 R)
• M8: 3,477,253 km (0.116 R)
• M9: 4,983,255 km (0.105 R)
• M10: 5,607,377 km (0.064 R)
• M11: 6,078,161 km (0.059 R)
• M12: 7,324,611 km (0.082 R)
• M13: 9,044,238 km (0.101 R)
• M14: 10,955,950 km (0.079 R)
• M15: 12,327,014 km (0.09 R)
• M16: 15,783,922 km (0.109 R)
• M17: 16,560,933 km (0.11 R)
• M18: 17,119,831 km (0.096 R)
• M19: 20,375,230 km (0.087 R)
• M20: 22,728,105 km (0.061 R)
• M21: 26,750,343 km (0.096 R)
• M22: 29,447,593 km (0.111 R)
• M23: 31,222,422 km (0.09 R)
• M24: 36,568,601 km (0.107 R)
• M25: 37,378,823 km (0.103 R)
• M26: 40,452,461 km (0.117 R)
• M27: 44,755,793 km (0.054 R)
• M28: 51,177,880 km (0.089 R)
• M29: 52,874,171 km (0.065 R)
• M30: 56,021,261 km (0.09 R)
• M31: 59,291,022 km (0.074 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 579.5

Radius: 3.7

Gravity: 42.33 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 8.31 AU - 10.53 AU

Year: 18966 Days

Day: 23.1 Hours

Environment

Temp: -219 °C

Axial Tilt: 3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (43)

Outer Limit: 69,461,621 km

• M1: 47,572 km (0.073 R)
• M2: 209,287 km (0.092 R)
• M3: 330,312 km (0.054 R)
• M4: 485,595 km (0.118 R)
• M5: 775,067 km (0.071 R)
• M6: 935,435 km (0.078 R)
• M7: 1,143,676 km (0.094 R)
• M8: 1,704,219 km (0.084 R)
• M9: 2,094,071 km (0.111 R)
• M10: 2,871,830 km (0.086 R)
• M11: 2,996,745 km (0.11 R)
• M12: 3,338,875 km (0.088 R)
• M13: 3,825,068 km (0.111 R)
• M14: 4,455,324 km (0.071 R)
• M15: 5,642,383 km (0.098 R)
• M16: 6,121,844 km (0.062 R)
• M17: 7,025,415 km (0.066 R)
• M18: 7,722,840 km (0.12 R)
• M19: 7,867,651 km (0.059 R)
• M20: 9,472,388 km (0.053 R)
• M21: 9,806,440 km (0.114 R)
• M22: 10,205,866 km (0.072 R)
• M23: 10,675,603 km (0.117 R)
• M24: 12,171,283 km (0.106 R)
• M25: 14,014,478 km (0.093 R)
• M26: 14,594,469 km (0.103 R)
• M27: 15,724,681 km (0.045 R)
• M28: 16,750,324 km (0.076 R)
• M29: 19,374,420 km (0.104 R)
• M30: 21,017,304 km (0.077 R)
• M31: 25,847,371 km (0.096 R)
• M32: 26,063,390 km (0.084 R)
• M33: 26,498,720 km (0.041 R)
• M34: 30,758,968 km (0.111 R)
• M35: 36,392,524 km (0.118 R)
• M36: 36,799,879 km (0.094 R)
• M37: 44,507,012 km (0.077 R)
• M38: 53,397,165 km (0.084 R)
• M39: 53,747,373 km (0.096 R)
• M40: 54,629,552 km (0.039 R)
• M41: 63,204,053 km (0.115 R)
• M42: 63,792,422 km (0.033 R)
• M43: 66,384,504 km (0.113 R)

Kuiper Belt

Range: 30 - 57 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 427 - 15,270 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit