🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.26 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.52 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 615.2

Radius: 9.1

Gravity: 7.43 G

Time & Orbit

Eccentricity (e): 0.225

Orbit Range: 0.4 AU - 0.64 AU

Year: 259 Days

Day: 9.1 Hours

Environment

Temp: -138 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 81,504,306 km

• M1: 113,096 km (0.115 R)
• M2: 459,714 km (0.079 R)
• M3: 781,948 km (0.117 R)
• M4: 1,158,785 km (0.076 R)
• M5: 1,509,143 km (0.041 R)
• M6: 1,819,409 km (0.079 R)
• M7: 2,112,023 km (0.068 R)
• M8: 2,511,748 km (0.064 R)
• M9: 2,802,866 km (0.096 R)
• M10: 3,136,319 km (0.117 R)
• M11: 3,422,051 km (0.108 R)
• M12: 3,987,830 km (0.112 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 793.2

Radius: 14

Gravity: 4.05 G

Time & Orbit

Eccentricity (e): 0.153

Orbit Range: 0.53 AU - 0.71 AU

Year: 337 Days

Day: 8.8 Hours

Environment

Temp: -144 °C

Axial Tilt: 39.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 81,504,306 km

• M1: 174,132 km (0.107 R)
• M2: 691,142 km (0.042 R)
• M3: 1,930,561 km (0.117 R)
• M4: 2,715,501 km (0.051 R)
• M5: 3,426,090 km (0.1 R)
• M6: 4,582,332 km (0.096 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 646.6

Radius: 13.5

Gravity: 3.55 G

Time & Orbit

Eccentricity (e): 0.068

Orbit Range: 0.59 AU - 0.67 AU

Year: 345 Days

Day: 6.9 Hours

Environment

Temp: -160 °C

Axial Tilt: 1.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 81,504,306 km

• M1: 169,046 km (0.078 R)
• M2: 627,563 km (0.082 R)
• M3: 1,112,559 km (0.071 R)
• M4: 1,565,243 km (0.087 R)
• M5: 2,497,836 km (0.116 R)
• M6: 4,004,885 km (0.118 R)
• M7: 4,799,249 km (0.038 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 809.1

Radius: 9.5

Gravity: 8.97 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.91 AU - 1.33 AU

Year: 818 Days

Day: 6.9 Hours

Environment

Temp: -176 °C

Axial Tilt: 9.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 81,504,306 km

• M1: 118,482 km (0.109 R)
• M2: 435,928 km (0.076 R)
• M3: 1,006,494 km (0.108 R)
• M4: 1,506,301 km (0.12 R)
• M5: 1,837,211 km (0.051 R)
• M6: 2,145,084 km (0.116 R)
• M7: 2,465,074 km (0.07 R)
• M8: 3,070,496 km (0.044 R)
• M9: 3,394,675 km (0.113 R)
• M10: 3,741,892 km (0.105 R)
• M11: 4,274,460 km (0.09 R)
• M12: 4,680,319 km (0.1 R)
• M13: 5,413,797 km (0.119 R)
• M14: 6,766,611 km (0.106 R)
• M15: 7,131,779 km (0.066 R)
• M16: 7,509,963 km (0.054 R)
• M17: 7,951,426 km (0.071 R)
• M18: 9,268,934 km (0.086 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.34 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 562

Radius: 13.9

Gravity: 2.91 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 2.26 AU - 2.42 AU

Year: 2471 Days

Day: 15 Hours

Environment

Temp: -204 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 81,504,306 km

• M1: 172,935 km (0.078 R)
• M2: 631,153 km (0.08 R)
• M3: 1,095,505 km (0.111 R)
• M4: 1,810,134 km (0.075 R)
• M5: 2,912,521 km (0.036 R)
• M6: 4,124,563 km (0.058 R)
• M7: 5,179,976 km (0.108 R)
• M8: 6,514,538 km (0.073 R)
• M9: 7,176,659 km (0.088 R)
• M10: 8,222,647 km (0.12 R)
• M11: 9,333,860 km (0.101 R)
• M12: 10,691,610 km (0.087 R)
• M13: 11,301,222 km (0.059 R)
• M14: 13,531,875 km (0.047 R)
• M15: 17,200,614 km (0.061 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 346.8

Radius: 12.9

Gravity: 2.08 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 2.54 AU - 2.58 AU

Year: 2827 Days

Day: 8.4 Hours

Environment

Temp: -214 °C

Axial Tilt: 0.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 81,504,306 km

• M1: 161,117 km (0.108 R)
• M2: 865,124 km (0.103 R)
• M3: 1,767,499 km (0.097 R)
• M4: 2,309,492 km (0.087 R)
• M5: 3,194,363 km (0.116 R)
• M6: 3,895,828 km (0.083 R)
• M7: 5,017,961 km (0.113 R)
• M8: 5,444,315 km (0.105 R)
• M9: 6,422,087 km (0.049 R)
• M10: 7,229,766 km (0.107 R)
• M11: 8,441,658 km (0.102 R)
• M12: 9,047,380 km (0.044 R)
• M13: 12,808,869 km (0.106 R)
• M14: 14,443,674 km (0.096 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.79 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 399

Radius: 14.3

Gravity: 1.95 G

Time & Orbit

Eccentricity (e): 0.009

Orbit Range: 3.76 AU - 3.82 AU

Year: 5093 Days

Day: 10.9 Hours

Environment

Temp: -216 °C

Axial Tilt: 25.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 81,504,306 km

• M1: 178,321 km (0.109 R)
• M2: 623,374 km (0.112 R)
• M3: 1,410,558 km (0.087 R)
• M4: 2,137,754 km (0.104 R)
• M5: 4,997,466 km (0.096 R)
• M6: 5,572,072 km (0.101 R)
• M7: 6,017,425 km (0.069 R)
• M8: 6,486,713 km (0.093 R)
• M9: 6,948,971 km (0.11 R)
• M10: 11,001,876 km (0.085 R)
• M11: 13,452,140 km (0.077 R)
• M12: 14,104,835 km (0.051 R)
• M13: 15,637,166 km (0.03 R)
• M14: 16,415,674 km (0.112 R)
• M15: 17,810,075 km (0.096 R)
• M16: 18,536,223 km (0.114 R)
• M17: 20,569,558 km (0.084 R)
• M18: 21,504,395 km (0.09 R)
• M19: 21,982,360 km (0.045 R)
• M20: 25,075,894 km (0.113 R)

Planet 8 - Gas Giant

Semi-Major Axis: 4.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 690.4

Radius: 9.7

Gravity: 7.34 G

Time & Orbit

Eccentricity (e): 0.198

Orbit Range: 3.64 AU - 5.44 AU

Year: 6677 Days

Day: 10.8 Hours

Environment

Temp: -232 °C

Axial Tilt: 20.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 81,504,306 km

• M1: 122,371 km (0.081 R)
• M2: 645,664 km (0.116 R)
• M3: 985,700 km (0.051 R)
• M4: 1,584,391 km (0.1 R)
• M5: 2,004,462 km (0.116 R)
• M6: 2,661,197 km (0.073 R)
• M7: 3,367,149 km (0.042 R)
• M8: 4,269,673 km (0.083 R)
• M9: 6,616,115 km (0.088 R)
• M10: 7,260,433 km (0.033 R)
• M11: 8,064,372 km (0.11 R)
• M12: 13,273,221 km (0.09 R)
• M13: 15,251,802 km (0.12 R)
• M14: 16,184,246 km (0.111 R)
• M15: 19,496,043 km (0.1 R)
• M16: 22,042,947 km (0.067 R)
• M17: 24,635,478 km (0.119 R)
• M18: 28,061,718 km (0.113 R)
• M19: 32,496,248 km (0.088 R)
• M20: 34,456,878 km (0.028 R)

Planet 9 - Ice Giant

Semi-Major Axis: 9.07 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 947.3

Radius: 6.6

Gravity: 21.75 G

Time & Orbit

Eccentricity (e): 0.005

Orbit Range: 9.02 AU - 9.12 AU

Year: 18855 Days

Day: 21 Hours

Environment

Temp: -242 °C

Axial Tilt: 23.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 81,504,306 km

• M1: 87,664 km (0.041 R)
• M2: 310,266 km (0.067 R)
• M3: 581,038 km (0.118 R)
• M4: 1,021,903 km (0.084 R)
• M5: 1,400,685 km (0.076 R)
• M6: 1,702,573 km (0.117 R)
• M7: 2,088,536 km (0.059 R)
• M8: 4,341,629 km (0.103 R)
• M9: 6,376,759 km (0.106 R)
• M10: 7,208,822 km (0.102 R)
• M11: 7,551,252 km (0.084 R)
• M12: 10,756,237 km (0.086 R)
• M13: 14,001,463 km (0.082 R)
• M14: 18,472,644 km (0.069 R)
• M15: 23,278,476 km (0.082 R)
• M16: 24,901,314 km (0.089 R)
• M17: 29,223,944 km (0.041 R)
• M18: 35,824,501 km (0.103 R)
• M19: 44,159,496 km (0.064 R)
• M20: 49,382,856 km (0.064 R)
• M21: 52,051,981 km (0.093 R)
• M22: 53,698,904 km (0.085 R)
• M23: 67,279,398 km (0.044 R)
• M24: 69,671,169 km (0.105 R)
• M25: 70,112,184 km (0.079 R)
• M26: 75,781,494 km (0.119 R)
• M27: 81,016,821 km (0.097 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 291 - 18,842 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit