🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 569.6

Radius: 12.3

Gravity: 3.76 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 0.47 AU - 0.61 AU

Year: 274 Days

Day: 10.7 Hours

Environment

Temp: -147 °C

Axial Tilt: 33.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 60,279,384 km

• M1: 153,039 km (0.074 R)
• M2: 562,338 km (0.086 R)
• M3: 1,021,753 km (0.07 R)
• M4: 1,499,569 km (0.114 R)
• M5: 2,179,192 km (0.08 R)
• M6: 2,617,215 km (0.113 R)
• M7: 3,065,709 km (0.086 R)
• M8: 3,695,965 km (0.096 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.14 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 75.5

Radius: 8.6

Gravity: 1.02 G

Time & Orbit

Eccentricity (e): 0.179

Orbit Range: 0.94 AU - 1.34 AU

Year: 840 Days

Day: 8.1 Hours

Environment

Temp: -177 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 60,279,384 km

• M1: 107,411 km (0.099 R)
• M2: 473,328 km (0.087 R)
• M3: 874,549 km (0.118 R)
• M4: 1,787,246 km (0.079 R)
• M5: 2,871,830 km (0.081 R)
• M6: 3,984,539 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 26

Radius: 11.2

Gravity: 0.21 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 1.83 AU - 2.09 AU

Year: 1894 Days

Day: 5.2 Hours

Environment

Temp: -200 °C

Axial Tilt: 12 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 60,279,384 km

• M1: 139,276 km (0.065 R)
• M2: 636,389 km (0.094 R)
• M3: 1,153,998 km (0.074 R)
• M4: 1,508,246 km (0.058 R)
• M5: 2,455,499 km (0.078 R)
• M6: 2,888,735 km (0.058 R)
• M7: 4,759,606 km (0.075 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 429.1

Radius: 12.1

Gravity: 2.93 G

Time & Orbit

Eccentricity (e): 0.046

Orbit Range: 2.18 AU - 2.38 AU

Year: 2376 Days

Day: 8.5 Hours

Environment

Temp: -214 °C

Axial Tilt: 20.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,279,384 km

• M1: 150,495 km (0.117 R)
• M2: 610,210 km (0.113 R)
• M3: 1,026,092 km (0.089 R)
• M4: 1,570,628 km (0.049 R)
• M5: 2,757,538 km (0.061 R)
• M6: 3,206,930 km (0.086 R)
• M7: 3,601,569 km (0.115 R)
• M8: 4,140,869 km (0.064 R)
• M9: 4,900,976 km (0.072 R)
• M10: 8,070,057 km (0.06 R)
• M11: 9,687,509 km (0.079 R)
• M12: 10,843,452 km (0.081 R)
• M13: 11,663,697 km (0.116 R)
• M14: 12,167,543 km (0.111 R)
• M15: 12,848,363 km (0.081 R)
• M16: 13,260,654 km (0.109 R)
• M17: 14,242,465 km (0.092 R)
• M18: 15,180,594 km (0.117 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.3 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 723.4

Radius: 13.4

Gravity: 4.03 G

Time & Orbit

Eccentricity (e): 0.107

Orbit Range: 2.95 AU - 3.65 AU

Year: 4138 Days

Day: 11.7 Hours

Environment

Temp: -220 °C

Axial Tilt: 35.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 60,279,384 km

• M1: 166,652 km (0.118 R)
• M2: 830,418 km (0.119 R)
• M3: 1,423,424 km (0.112 R)
• M4: 2,134,014 km (0.044 R)
• M5: 2,621,403 km (0.104 R)
• M6: 3,278,138 km (0.111 R)
• M7: 4,948,398 km (0.11 R)
• M8: 6,371,822 km (0.108 R)
• M9: 10,096,211 km (0.097 R)
• M10: 12,754,714 km (0.086 R)
• M11: 13,297,605 km (0.042 R)
• M12: 17,844,632 km (0.116 R)
• M13: 18,775,879 km (0.114 R)
• M14: 19,350,036 km (0.088 R)
• M15: 20,533,654 km (0.052 R)
• M16: 21,211,781 km (0.099 R)
• M17: 23,999,986 km (0.114 R)
• M18: 24,600,921 km (0.118 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.36 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 93.1

Radius: 8.5

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 3.51 AU - 5.21 AU

Year: 6284 Days

Day: 12.9 Hours

Environment

Temp: -214 °C

Axial Tilt: 91.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 60,279,384 km

• M1: 114,891 km (0.066 R)
• M2: 600,785 km (0.098 R)
• M3: 1,016,218 km (0.091 R)
• M4: 3,195,261 km (0.085 R)
• M5: 3,911,087 km (0.095 R)
• M6: 4,817,799 km (0.084 R)
• M7: 6,593,676 km (0.106 R)
• M8: 7,301,423 km (0.077 R)

Planet 7 - Gas Giant

Semi-Major Axis: 4.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 622.6

Radius: 11.1

Gravity: 5.05 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 4.65 AU - 4.85 AU

Year: 7146 Days

Day: 10 Hours

Environment

Temp: -232 °C

Axial Tilt: 12.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (31)

Outer Limit: 60,279,384 km

• M1: 138,378 km (0.041 R)
• M2: 510,578 km (0.062 R)
• M3: 1,012,030 km (0.074 R)
• M4: 1,372,411 km (0.1 R)
• M5: 1,877,453 km (0.12 R)
• M6: 2,522,071 km (0.072 R)
• M7: 2,956,353 km (0.101 R)
• M8: 4,150,743 km (0.057 R)
• M9: 4,568,270 km (0.046 R)
• M10: 5,580,449 km (0.103 R)
• M11: 6,424,630 km (0.116 R)
• M12: 7,314,737 km (0.117 R)
• M13: 8,696,423 km (0.101 R)
• M14: 9,295,413 km (0.109 R)
• M15: 9,921,480 km (0.109 R)
• M16: 11,408,334 km (0.115 R)
• M17: 13,148,755 km (0.09 R)
• M18: 14,999,431 km (0.067 R)
• M19: 15,861,264 km (0.096 R)
• M20: 16,755,859 km (0.067 R)
• M21: 18,160,434 km (0.089 R)
• M22: 20,227,128 km (0.068 R)
• M23: 20,598,580 km (0.085 R)
• M24: 22,445,964 km (0.112 R)
• M25: 25,248,530 km (0.119 R)
• M26: 25,853,205 km (0.102 R)
• M27: 28,184,239 km (0.102 R)
• M28: 29,116,982 km (0.088 R)
• M29: 29,495,763 km (0.111 R)
• M30: 33,570,510 km (0.105 R)
• M31: 35,904,686 km (0.081 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.21 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 871.1

Radius: 7.7

Gravity: 14.69 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 7.16 AU - 7.26 AU

Year: 13363 Days

Day: 20.2 Hours

Environment

Temp: -232 °C

Axial Tilt: 10.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 60,279,384 km

• M1: 97,687 km (0.113 R)
• M2: 943,813 km (0.079 R)
• M3: 2,099,756 km (0.116 R)
• M4: 2,568,296 km (0.047 R)
• M5: 4,368,258 km (0.065 R)
• M6: 6,966,324 km (0.087 R)
• M7: 9,728,948 km (0.1 R)
• M8: 11,441,993 km (0.07 R)
• M9: 12,690,088 km (0.103 R)
• M10: 13,481,162 km (0.039 R)
• M11: 16,355,984 km (0.039 R)
• M12: 16,819,737 km (0.05 R)
• M13: 18,512,437 km (0.08 R)
• M14: 25,278,899 km (0.12 R)
• M15: 31,112,019 km (0.073 R)
• M16: 35,035,821 km (0.105 R)
• M17: 35,806,550 km (0.074 R)
• M18: 39,277,370 km (0.083 R)
• M19: 40,529,205 km (0.104 R)
• M20: 43,848,931 km (0.073 R)
• M21: 46,879,186 km (0.053 R)
• M22: 54,716,020 km (0.065 R)
• M23: 59,485,948 km (0.055 R)
• M24: 63,004,041 km (0.118 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.95 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 510.4

Radius: 6.5

Gravity: 12.08 G

Time & Orbit

Eccentricity (e): 0.185

Orbit Range: 6.48 AU - 9.42 AU

Year: 15473 Days

Day: 21.6 Hours

Environment

Temp: -226 °C

Axial Tilt: 9.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (30)

Outer Limit: 60,279,384 km

• M1: 81,082 km (0.055 R)
• M2: 309,817 km (0.108 R)
• M3: 531,521 km (0.099 R)
• M4: 1,032,076 km (0.086 R)
• M5: 1,541,008 km (0.113 R)
• M6: 2,037,074 km (0.116 R)
• M7: 3,852,145 km (0.091 R)
• M8: 5,127,766 km (0.106 R)
• M9: 7,164,392 km (0.104 R)
• M10: 7,557,086 km (0.065 R)
• M11: 8,102,819 km (0.104 R)
• M12: 8,674,433 km (0.095 R)
• M13: 13,849,172 km (0.055 R)
• M14: 14,253,536 km (0.042 R)
• M15: 14,665,528 km (0.059 R)
• M16: 21,568,273 km (0.118 R)
• M17: 23,988,019 km (0.118 R)
• M18: 24,375,776 km (0.079 R)
• M19: 24,669,287 km (0.096 R)
• M20: 25,866,818 km (0.103 R)
• M21: 26,070,122 km (0.113 R)
• M22: 28,377,519 km (0.101 R)
• M23: 31,622,297 km (0.106 R)
• M24: 35,105,983 km (0.115 R)
• M25: 35,480,426 km (0.113 R)
• M26: 40,729,815 km (0.116 R)
• M27: 45,137,268 km (0.078 R)
• M28: 47,990,099 km (0.081 R)
• M29: 51,923,775 km (0.078 R)
• M30: 53,062,514 km (0.1 R)

Planet 10 - Ice Giant

Semi-Major Axis: 8.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 477.3

Radius: 6.3

Gravity: 12.03 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 6.72 AU - 10.14 AU

Year: 16895 Days

Day: 20.4 Hours

Environment

Temp: -235 °C

Axial Tilt: 95.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 60,279,384 km

• M1: 78,389 km (0.092 R)
• M2: 849,716 km (0.101 R)
• M3: 1,224,159 km (0.04 R)
• M4: 2,817,526 km (0.066 R)
• M5: 3,487,126 km (0.108 R)
• M6: 4,077,440 km (0.069 R)
• M7: 4,350,156 km (0.097 R)
• M8: 4,602,528 km (0.066 R)
• M9: 6,449,015 km (0.105 R)
• M10: 11,523,075 km (0.077 R)
• M11: 13,212,185 km (0.069 R)
• M12: 16,157,468 km (0.089 R)
• M13: 20,904,806 km (0.117 R)
• M14: 21,991,186 km (0.111 R)
• M15: 26,505,152 km (0.097 R)
• M16: 30,326,929 km (0.088 R)
• M17: 32,309,251 km (0.066 R)
• M18: 34,376,244 km (0.094 R)
• M19: 37,180,008 km (0.085 R)
• M20: 41,948,589 km (0.088 R)
• M21: 44,848,544 km (0.071 R)
• M22: 47,262,605 km (0.101 R)
• M23: 51,205,706 km (0.068 R)
• M24: 58,138,071 km (0.079 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 474 - 15,315 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit