🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 981.6

Radius: 10

Gravity: 9.82 G

Time & Orbit

Eccentricity (e): 0

Orbit Range: 0.69 AU - 0.69 AU

Year: 370 Days

Day: 12.8 Hours

Environment

Temp: -140 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 76,810,900 km

• M1: 124,465 km (0.073 R)
• M2: 538,403 km (0.118 R)
• M3: 1,004,251 km (0.108 R)
• M4: 1,331,421 km (0.078 R)
• M5: 1,657,694 km (0.091 R)
• M6: 2,005,060 km (0.088 R)
• M7: 2,902,498 km (0.107 R)
• M8: 3,412,327 km (0.092 R)
• M9: 4,295,404 km (0.062 R)
• M10: 5,194,936 km (0.081 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.22 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 162.4

Radius: 14.6

Gravity: 0.76 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 1.15 AU - 1.29 AU

Year: 870 Days

Day: 8 Hours

Environment

Temp: -158 °C

Axial Tilt: 24.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 76,810,900 km

• M1: 181,612 km (0.076 R)
• M2: 965,953 km (0.076 R)
• M3: 1,431,352 km (0.105 R)
• M4: 2,125,636 km (0.074 R)
• M5: 2,658,953 km (0.116 R)
• M6: 3,147,539 km (0.118 R)
• M7: 3,746,230 km (0.098 R)
• M8: 4,378,580 km (0.081 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 251.4

Radius: 14.4

Gravity: 1.21 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 1.53 AU - 2.17 AU

Year: 1625 Days

Day: 7.6 Hours

Environment

Temp: -191 °C

Axial Tilt: 15.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 76,810,900 km

• M1: 180,116 km (0.092 R)
• M2: 717,023 km (0.109 R)
• M3: 1,241,513 km (0.073 R)
• M4: 1,733,690 km (0.108 R)
• M5: 2,358,410 km (0.068 R)
• M6: 3,026,066 km (0.074 R)
• M7: 3,476,954 km (0.111 R)
• M8: 4,116,634 km (0.111 R)
• M9: 4,708,892 km (0.093 R)
• M10: 5,435,639 km (0.061 R)
• M11: 6,108,081 km (0.107 R)
• M12: 8,150,391 km (0.111 R)
• M13: 9,570,075 km (0.081 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 22.5

Radius: 10.3

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.115

Orbit Range: 1.78 AU - 2.24 AU

Year: 1840 Days

Day: 7.5 Hours

Environment

Temp: -197 °C

Axial Tilt: 13.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 76,810,900 km

• M1: 128,056 km (0.062 R)
• M2: 686,804 km (0.117 R)
• M3: 1,372,710 km (0.102 R)
• M4: 2,152,713 km (0.06 R)
• M5: 2,737,342 km (0.087 R)
• M6: 3,313,892 km (0.111 R)
• M7: 4,462,056 km (0.11 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.13 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 435.8

Radius: 12.6

Gravity: 2.75 G

Time & Orbit

Eccentricity (e): 0.243

Orbit Range: 1.61 AU - 2.65 AU

Year: 2007 Days

Day: 10.3 Hours

Environment

Temp: -190 °C

Axial Tilt: 160.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,810,900 km

• M1: 157,676 km (0.089 R)
• M2: 677,379 km (0.083 R)
• M3: 1,092,064 km (0.099 R)
• M4: 2,054,577 km (0.076 R)
• M5: 3,160,405 km (0.089 R)
• M6: 3,820,430 km (0.06 R)
• M7: 4,929,848 km (0.106 R)
• M8: 7,834,440 km (0.105 R)
• M9: 8,739,657 km (0.113 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.51 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 839.9

Radius: 14.3

Gravity: 4.11 G

Time & Orbit

Eccentricity (e): 0.126

Orbit Range: 2.19 AU - 2.83 AU

Year: 2568 Days

Day: 13.4 Hours

Environment

Temp: -202 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (19)

Outer Limit: 76,810,900 km

• M1: 184,005 km (0.104 R)
• M2: 673,789 km (0.057 R)
• M3: 1,168,808 km (0.049 R)
• M4: 1,976,337 km (0.036 R)
• M5: 2,493,049 km (0.105 R)
• M6: 3,168,184 km (0.11 R)
• M7: 4,228,533 km (0.119 R)
• M8: 5,768,643 km (0.107 R)
• M9: 7,347,051 km (0.111 R)
• M10: 8,880,878 km (0.088 R)
• M11: 9,412,848 km (0.113 R)
• M12: 10,936,502 km (0.091 R)
• M13: 11,715,458 km (0.084 R)
• M14: 13,615,201 km (0.119 R)
• M15: 14,662,985 km (0.082 R)
• M16: 15,559,824 km (0.085 R)
• M17: 17,027,080 km (0.119 R)
• M18: 17,517,911 km (0.061 R)
• M19: 20,175,218 km (0.056 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.57 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 494.8

Radius: 8.8

Gravity: 6.39 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 5.5 AU - 5.64 AU

Year: 8488 Days

Day: 13.2 Hours

Environment

Temp: -224 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 76,810,900 km

• M1: 109,655 km (0.069 R)
• M2: 681,717 km (0.102 R)
• M3: 962,513 km (0.043 R)
• M4: 1,254,827 km (0.096 R)
• M5: 1,688,212 km (0.077 R)
• M6: 1,978,881 km (0.073 R)
• M7: 2,551,541 km (0.051 R)
• M8: 4,632,448 km (0.096 R)
• M9: 5,179,377 km (0.113 R)
• M10: 6,681,789 km (0.114 R)
• M11: 7,766,822 km (0.057 R)
• M12: 12,794,059 km (0.114 R)
• M13: 15,437,154 km (0.104 R)
• M14: 15,878,617 km (0.054 R)
• M15: 16,589,506 km (0.029 R)
• M16: 16,919,519 km (0.113 R)
• M17: 18,777,974 km (0.105 R)
• M18: 20,768,672 km (0.093 R)
• M19: 22,652,858 km (0.082 R)
• M20: 26,398,339 km (0.064 R)
• M21: 27,303,706 km (0.119 R)
• M22: 27,579,265 km (0.062 R)
• M23: 28,985,335 km (0.087 R)
• M24: 29,368,156 km (0.112 R)
• M25: 31,635,611 km (0.105 R)
• M26: 32,656,916 km (0.078 R)
• M27: 35,306,145 km (0.109 R)
• M28: 36,627,243 km (0.068 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.02 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 261.3

Radius: 4.5

Gravity: 12.9 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 5.38 AU - 6.66 AU

Year: 9537 Days

Day: 18.4 Hours

Environment

Temp: -223 °C

Axial Tilt: 22.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (21)

Outer Limit: 76,810,900 km

• M1: 61,934 km (0.119 R)
• M2: 297,700 km (0.119 R)
• M3: 919,279 km (0.084 R)
• M4: 1,759,121 km (0.071 R)
• M5: 2,511,748 km (0.063 R)
• M6: 3,728,428 km (0.077 R)
• M7: 4,921,620 km (0.089 R)
• M8: 8,747,287 km (0.071 R)
• M9: 10,033,978 km (0.105 R)
• M10: 12,141,812 km (0.08 R)
• M11: 13,029,526 km (0.028 R)
• M12: 13,462,013 km (0.119 R)
• M13: 14,128,472 km (0.091 R)
• M14: 16,321,876 km (0.119 R)
• M15: 17,272,121 km (0.099 R)
• M16: 17,728,096 km (0.072 R)
• M17: 18,325,889 km (0.025 R)
• M18: 21,818,849 km (0.027 R)
• M19: 23,681,044 km (0.111 R)
• M20: 24,487,227 km (0.043 R)
• M21: 28,794,598 km (0.079 R)

Planet 9 - Ice Giant

Semi-Major Axis: 8.97 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 422.3

Radius: 5.3

Gravity: 15.03 G

Time & Orbit

Eccentricity (e): 0.083

Orbit Range: 8.23 AU - 9.71 AU

Year: 17346 Days

Day: 24.4 Hours

Environment

Temp: -225 °C

Axial Tilt: 8.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 76,810,900 km

• M1: 66,272 km (0.049 R)
• M2: 1,088,025 km (0.078 R)
• M3: 1,442,123 km (0.066 R)
• M4: 1,835,566 km (0.06 R)
• M5: 2,199,388 km (0.048 R)
• M6: 3,502,236 km (0.12 R)
• M7: 3,746,978 km (0.028 R)
• M8: 4,180,064 km (0.099 R)
• M9: 5,043,094 km (0.097 R)
• M10: 8,824,180 km (0.027 R)
• M11: 9,432,744 km (0.066 R)
• M12: 9,747,199 km (0.03 R)
• M13: 11,018,182 km (0.065 R)
• M14: 13,028,927 km (0.081 R)
• M15: 13,419,079 km (0.083 R)
• M16: 14,428,565 km (0.118 R)
• M17: 16,749,426 km (0.082 R)
• M18: 18,482,219 km (0.054 R)
• M19: 19,729,865 km (0.117 R)
• M20: 21,841,289 km (0.028 R)
• M21: 22,299,358 km (0.087 R)
• M22: 22,670,510 km (0.065 R)
• M23: 23,616,118 km (0.11 R)
• M24: 24,391,484 km (0.025 R)
• M25: 28,306,759 km (0.082 R)
• M26: 29,736,915 km (0.118 R)
• M27: 30,299,553 km (0.036 R)
• M28: 32,859,771 km (0.118 R)
• M29: 36,835,783 km (0.056 R)
• M30: 37,354,289 km (0.068 R)
• M31: 43,239,021 km (0.119 R)
• M32: 44,837,773 km (0.072 R)
• M33: 47,080,993 km (0.082 R)
• M34: 49,241,037 km (0.105 R)
• M35: 50,186,794 km (0.112 R)
• M36: 52,114,213 km (0.102 R)
• M37: 54,090,551 km (0.117 R)
• M38: 54,424,753 km (0.11 R)
• M39: 55,945,564 km (0.083 R)
• M40: 56,630,573 km (0.109 R)

Planet 10 - Ice Giant

Semi-Major Axis: 9.98 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 680.2

Radius: 3.8

Gravity: 47.11 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 7.54 AU - 12.42 AU

Year: 20357 Days

Day: 20.2 Hours

Environment

Temp: -222 °C

Axial Tilt: 9.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 76,810,900 km

• M1: 47,273 km (0.089 R)
• M2: 799,601 km (0.036 R)
• M3: 933,341 km (0.102 R)
• M4: 1,121,685 km (0.099 R)
• M5: 1,643,632 km (0.043 R)
• M6: 2,959,195 km (0.074 R)
• M7: 3,452,569 km (0.092 R)
• M8: 6,453,503 km (0.097 R)
• M9: 8,804,732 km (0.12 R)
• M10: 11,155,214 km (0.071 R)
• M11: 13,456,029 km (0.089 R)
• M12: 17,990,341 km (0.026 R)
• M13: 18,430,906 km (0.102 R)
• M14: 19,795,389 km (0.08 R)
• M15: 24,720,599 km (0.094 R)
• M16: 29,300,239 km (0.109 R)
• M17: 32,431,921 km (0.085 R)
• M18: 39,794,081 km (0.095 R)
• M19: 42,217,566 km (0.077 R)
• M20: 46,034,556 km (0.115 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: 384 - 11,057 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit