🌌 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: 0.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 410.8

Radius: 12.9

Gravity: 2.47 G

Time & Orbit

Eccentricity (e): 0.248

Orbit Range: 0.4 AU - 0.66 AU

Year: 257 Days

Day: 13 Hours

Environment

Temp: -135 °C

Axial Tilt: 46 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (27)

Outer Limit: 40,423,769 km

• M1: 160,967 km (0.064 R)
• M2: 288,125 km (0.119 R)
• M3: 398,230 km (0.083 R)
• M4: 493,374 km (0.058 R)
• M5: 575,653 km (0.103 R)
• M6: 674,686 km (0.094 R)
• M7: 809,474 km (0.106 R)
• M8: 892,800 km (0.083 R)
• M9: 979,417 km (0.111 R)
• M10: 1,095,356 km (0.119 R)
• M11: 1,192,445 km (0.091 R)
• M12: 1,377,946 km (0.053 R)
• M13: 1,461,571 km (0.103 R)
• M14: 1,577,061 km (0.106 R)
• M15: 1,695,991 km (0.102 R)
• M16: 1,813,874 km (0.101 R)
• M17: 1,959,283 km (0.066 R)
• M18: 2,062,655 km (0.092 R)
• M19: 2,240,527 km (0.088 R)
• M20: 2,379,504 km (0.12 R)
• M21: 2,648,182 km (0.079 R)
• M22: 2,809,448 km (0.114 R)
• M23: 2,959,943 km (0.032 R)
• M24: 3,113,132 km (0.108 R)
• M25: 3,215,157 km (0.057 R)
• M26: 3,328,253 km (0.066 R)
• M27: 3,452,569 km (0.105 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 349.7

Radius: 9.2

Gravity: 4.13 G

Time & Orbit

Eccentricity (e): 0.06

Orbit Range: 0.55 AU - 0.63 AU

Year: 302 Days

Day: 7.5 Hours

Environment

Temp: -147 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 40,423,769 km

• M1: 131,347 km (0.113 R)
• M2: 194,477 km (0.099 R)
• M3: 265,985 km (0.068 R)
• M4: 451,187 km (0.049 R)
• M5: 540,647 km (0.113 R)
• M6: 600,336 km (0.097 R)
• M7: 694,583 km (0.108 R)
• M8: 769,531 km (0.095 R)
• M9: 838,047 km (0.087 R)
• M10: 902,225 km (0.058 R)
• M11: 991,834 km (0.086 R)
• M12: 1,101,938 km (0.119 R)
• M13: 1,180,178 km (0.109 R)
• M14: 1,297,462 km (0.089 R)
• M15: 1,384,229 km (0.115 R)
• M16: 1,441,974 km (0.11 R)
• M17: 1,539,960 km (0.116 R)
• M18: 1,763,609 km (0.114 R)
• M19: 1,826,440 km (0.057 R)
• M20: 1,915,750 km (0.101 R)
• M21: 2,011,044 km (0.062 R)
• M22: 2,103,346 km (0.082 R)
• M23: 2,183,680 km (0.099 R)
• M24: 2,269,549 km (0.084 R)
• M25: 2,496,489 km (0.116 R)
• M26: 2,610,333 km (0.108 R)
• M27: 2,701,738 km (0.056 R)
• M28: 2,764,868 km (0.116 R)
• M29: 2,843,407 km (0.062 R)
• M30: 2,927,481 km (0.104 R)
• M31: 2,997,493 km (0.115 R)
• M32: 3,103,408 km (0.069 R)
• M33: 3,180,002 km (0.089 R)
• M34: 3,246,723 km (0.116 R)
• M35: 3,340,072 km (0.07 R)
• M36: 3,439,554 km (0.049 R)
• M37: 3,502,834 km (0.113 R)
• M38: 3,561,327 km (0.032 R)
• M39: 3,630,740 km (0.076 R)
• M40: 3,695,217 km (0.086 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 963.7

Radius: 14.8

Gravity: 4.4 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.68 AU - 0.86 AU

Year: 451 Days

Day: 14.9 Hours

Environment

Temp: -168 °C

Axial Tilt: 21.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 40,423,769 km

• M1: 184,305 km (0.087 R)
• M2: 278,850 km (0.101 R)
• M3: 390,151 km (0.105 R)
• M4: 508,633 km (0.118 R)
• M5: 627,563 km (0.055 R)
• M6: 758,162 km (0.091 R)
• M7: 918,681 km (0.096 R)
• M8: 1,107,174 km (0.112 R)
• M9: 1,212,042 km (0.116 R)
• M10: 1,421,329 km (0.089 R)
• M11: 1,560,007 km (0.081 R)
• M12: 1,679,236 km (0.118 R)
• M13: 1,908,420 km (0.084 R)
• M14: 2,010,895 km (0.044 R)
• M15: 2,214,796 km (0.066 R)
• M16: 2,329,688 km (0.114 R)
• M17: 2,425,879 km (0.075 R)
• M18: 2,608,089 km (0.086 R)
• M19: 2,780,576 km (0.111 R)
• M20: 2,890,380 km (0.118 R)
• M21: 2,986,721 km (0.101 R)
• M22: 3,099,219 km (0.086 R)
• M23: 3,197,954 km (0.085 R)
• M24: 3,336,481 km (0.061 R)
• M25: 3,829,107 km (0.11 R)
• M26: 4,050,961 km (0.057 R)
• M27: 4,251,721 km (0.032 R)
• M28: 4,361,975 km (0.032 R)
• M29: 4,456,072 km (0.112 R)
• M30: 4,786,085 km (0.097 R)
• M31: 4,909,802 km (0.111 R)
• M32: 5,097,248 km (0.088 R)
• M33: 5,406,018 km (0.118 R)
• M34: 5,599,747 km (0.082 R)
• M35: 5,795,870 km (0.06 R)
• M36: 5,984,812 km (0.086 R)
• M37: 6,224,019 km (0.083 R)
• M38: 6,359,256 km (0.041 R)
• M39: 6,466,218 km (0.053 R)
• M40: 6,564,055 km (0.047 R)
• M41: 6,662,341 km (0.08 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 156.8

Radius: 14.9

Gravity: 0.71 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 0.89 AU - 0.93 AU

Year: 579 Days

Day: 6.1 Hours

Environment

Temp: -180 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (28)

Outer Limit: 40,423,769 km

• M1: 229,483 km (0.095 R)
• M2: 393,742 km (0.097 R)
• M3: 541,694 km (0.112 R)
• M4: 660,923 km (0.056 R)
• M5: 855,251 km (0.103 R)
• M6: 985,551 km (0.117 R)
• M7: 1,177,485 km (0.104 R)
• M8: 1,316,910 km (0.099 R)
• M9: 1,428,660 km (0.061 R)
• M10: 1,526,497 km (0.109 R)
• M11: 1,761,066 km (0.118 R)
• M12: 1,871,469 km (0.079 R)
• M13: 1,965,267 km (0.072 R)
• M14: 2,075,371 km (0.113 R)
• M15: 2,187,420 km (0.087 R)
• M16: 2,296,776 km (0.104 R)
• M17: 2,428,422 km (0.066 R)
• M18: 2,526,259 km (0.075 R)
• M19: 2,630,679 km (0.103 R)
• M20: 2,752,750 km (0.098 R)
• M21: 2,893,073 km (0.037 R)
• M22: 3,041,474 km (0.067 R)
• M23: 3,449,577 km (0.081 R)
• M24: 3,666,345 km (0.078 R)
• M25: 3,779,441 km (0.098 R)
• M26: 3,960,454 km (0.071 R)
• M27: 4,101,226 km (0.112 R)
• M28: 4,262,343 km (0.119 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 846.4

Radius: 9.3

Gravity: 9.79 G

Time & Orbit

Eccentricity (e): 0.201

Orbit Range: 0.86 AU - 1.3 AU

Year: 748 Days

Day: 12.4 Hours

Environment

Temp: -174 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (62)

Outer Limit: 40,423,769 km

• M1: 117,135 km (0.037 R)
• M2: 201,808 km (0.028 R)
• M3: 279,150 km (0.086 R)
• M4: 383,868 km (0.067 R)
• M5: 481,256 km (0.094 R)
• M6: 548,276 km (0.098 R)
• M7: 676,781 km (0.113 R)
• M8: 759,060 km (0.118 R)
• M9: 827,575 km (0.113 R)
• M10: 965,056 km (0.105 R)
• M11: 1,046,288 km (0.077 R)
• M12: 1,236,277 km (0.072 R)
• M13: 1,318,256 km (0.097 R)
• M14: 1,516,922 km (0.066 R)
• M15: 1,582,895 km (0.086 R)
• M16: 1,649,915 km (0.043 R)
• M17: 1,840,951 km (0.092 R)
• M18: 1,943,276 km (0.067 R)
• M19: 2,088,237 km (0.099 R)
• M20: 2,329,239 km (0.091 R)
• M21: 2,721,185 km (0.067 R)
• M22: 2,784,016 km (0.028 R)
• M23: 2,847,446 km (0.1 R)
• M24: 2,938,701 km (0.112 R)
• M25: 3,133,776 km (0.117 R)
• M26: 3,275,745 km (0.071 R)
• M27: 3,381,361 km (0.091 R)
• M28: 3,645,102 km (0.076 R)
• M29: 3,925,747 km (0.074 R)
• M30: 4,130,547 km (0.107 R)
• M31: 4,412,688 km (0.03 R)
• M32: 4,658,029 km (0.099 R)
• M33: 4,809,422 km (0.117 R)
• M34: 4,896,787 km (0.111 R)
• M35: 5,039,803 km (0.102 R)
• M36: 5,307,583 km (0.109 R)
• M37: 5,409,160 km (0.068 R)
• M38: 5,557,112 km (0.077 R)
• M39: 5,660,335 km (0.072 R)
• M40: 5,822,200 km (0.113 R)
• M41: 5,892,062 km (0.079 R)
• M42: 5,973,892 km (0.039 R)
• M43: 6,079,657 km (0.081 R)
• M44: 6,186,022 km (0.081 R)
• M45: 6,245,412 km (0.107 R)
• M46: 6,448,715 km (0.084 R)
• M47: 6,520,971 km (0.084 R)
• M48: 6,898,855 km (0.117 R)
• M49: 6,997,440 km (0.069 R)
• M50: 7,146,290 km (0.114 R)
• M51: 7,308,754 km (0.11 R)
• M52: 7,396,867 km (0.073 R)
• M53: 7,586,557 km (0.11 R)
• M54: 7,688,433 km (0.116 R)
• M55: 7,829,354 km (0.106 R)
• M56: 8,009,769 km (0.093 R)
• M57: 8,296,249 km (0.109 R)
• M58: 8,466,940 km (0.06 R)
• M59: 8,638,978 km (0.115 R)
• M60: 8,892,546 km (0.08 R)
• M61: 8,973,030 km (0.083 R)
• M62: 9,121,431 km (0.103 R)

Planet 6 - Gas Giant

Semi-Major Axis: 1.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 419.3

Radius: 11.6

Gravity: 3.12 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 1.13 AU - 1.67 AU

Year: 1105 Days

Day: 11.7 Hours

Environment

Temp: -179 °C

Axial Tilt: 23.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (57)

Outer Limit: 40,423,769 km

• M1: 192,233 km (0.116 R)
• M2: 393,293 km (0.072 R)
• M3: 532,568 km (0.111 R)
• M4: 632,649 km (0.073 R)
• M5: 819,647 km (0.08 R)
• M6: 920,326 km (0.092 R)
• M7: 1,057,507 km (0.105 R)
• M8: 1,168,509 km (0.113 R)
• M9: 1,269,936 km (0.116 R)
• M10: 1,409,960 km (0.082 R)
• M11: 1,511,088 km (0.091 R)
• M12: 1,751,941 km (0.115 R)
• M13: 1,949,111 km (0.078 R)
• M14: 2,030,043 km (0.115 R)
• M15: 2,120,400 km (0.1 R)
• M16: 2,229,008 km (0.053 R)
• M17: 2,339,561 km (0.075 R)
• M18: 2,417,202 km (0.065 R)
• M19: 2,495,592 km (0.049 R)
• M20: 2,673,314 km (0.107 R)
• M21: 2,754,695 km (0.038 R)
• M22: 2,855,225 km (0.096 R)
• M23: 2,938,401 km (0.11 R)
• M24: 3,050,749 km (0.077 R)
• M25: 3,357,126 km (0.098 R)
• M26: 3,613,537 km (0.071 R)
• M27: 3,744,285 km (0.103 R)
• M28: 3,866,207 km (0.093 R)
• M29: 3,999,948 km (0.113 R)
• M30: 4,293,309 km (0.114 R)
• M31: 4,399,673 km (0.096 R)
• M32: 4,517,856 km (0.114 R)
• M33: 4,691,688 km (0.031 R)
• M34: 4,779,353 km (0.057 R)
• M35: 4,934,336 km (0.116 R)
• M36: 5,294,568 km (0.065 R)
• M37: 5,420,380 km (0.115 R)
• M38: 5,501,013 km (0.1 R)
• M39: 5,827,435 km (0.118 R)
• M40: 6,016,976 km (0.078 R)
• M41: 6,184,376 km (0.113 R)
• M42: 6,280,717 km (0.073 R)
• M43: 6,572,882 km (0.078 R)
• M44: 6,683,734 km (0.073 R)
• M45: 6,770,201 km (0.106 R)
• M46: 7,019,581 km (0.117 R)
• M47: 7,246,670 km (0.078 R)
• M48: 7,335,681 km (0.093 R)
• M49: 7,437,707 km (0.108 R)
• M50: 7,890,240 km (0.046 R)
• M51: 8,126,306 km (0.102 R)
• M52: 8,232,072 km (0.114 R)
• M53: 8,458,264 km (0.051 R)
• M54: 8,538,598 km (0.069 R)
• M55: 8,632,695 km (0.097 R)
• M56: 8,862,477 km (0.054 R)
• M57: 9,121,730 km (0.115 R)

Asteroid Belt

Center: 2.66 AU

Composition

Type: Outer System (Icy)

A dense region of planetesimals and debris.

Boundary

Planet 7 - Gas Giant

Semi-Major Axis: 3.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 415.3

Radius: 9

Gravity: 5.13 G

Time & Orbit

Eccentricity (e): 0.103

Orbit Range: 3.51 AU - 4.31 AU

Year: 5156 Days

Day: 9.6 Hours

Environment

Temp: -221 °C

Axial Tilt: 1.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (79)

Outer Limit: 40,423,769 km

• M1: 159,621 km (0.094 R)
• M2: 220,806 km (0.117 R)
• M3: 289,322 km (0.049 R)
• M4: 419,921 km (0.03 R)
• M5: 503,247 km (0.067 R)
• M6: 884,423 km (0.034 R)
• M7: 970,441 km (0.103 R)
• M8: 1,151,305 km (0.108 R)
• M9: 1,232,387 km (0.103 R)
• M10: 1,315,264 km (0.102 R)
• M11: 1,414,597 km (0.108 R)
• M12: 1,681,630 km (0.11 R)
• M13: 1,964,669 km (0.119 R)
• M14: 2,046,050 km (0.114 R)
• M15: 2,382,944 km (0.074 R)
• M16: 2,470,010 km (0.104 R)
• M17: 2,629,332 km (0.109 R)
• M18: 2,701,139 km (0.081 R)
• M19: 2,939,598 km (0.071 R)
• M20: 3,184,789 km (0.098 R)
• M21: 3,280,981 km (0.105 R)
• M22: 3,358,472 km (0.093 R)
• M23: 3,515,550 km (0.094 R)
• M24: 3,816,690 km (0.096 R)
• M25: 3,877,876 km (0.077 R)
• M26: 4,001,444 km (0.098 R)
• M27: 4,168,096 km (0.084 R)
• M28: 4,551,515 km (0.115 R)
• M29: 4,681,965 km (0.063 R)
• M30: 4,791,470 km (0.115 R)
• M31: 4,968,594 km (0.113 R)
• M32: 5,512,981 km (0.103 R)
• M33: 5,698,632 km (0.105 R)
• M34: 6,196,045 km (0.115 R)
• M35: 6,535,333 km (0.068 R)
• M36: 7,131,031 km (0.107 R)
• M37: 7,333,587 km (0.096 R)
• M38: 7,718,353 km (0.102 R)
• M39: 7,848,054 km (0.101 R)
• M40: 7,978,503 km (0.107 R)
• M41: 8,083,371 km (0.035 R)
• M42: 8,454,075 km (0.104 R)
• M43: 9,212,237 km (0.084 R)
• M44: 10,332,575 km (0.119 R)
• M45: 10,389,722 km (0.102 R)
• M46: 10,475,740 km (0.057 R)
• M47: 10,850,782 km (0.053 R)
• M48: 11,289,104 km (0.051 R)
• M49: 11,673,571 km (0.097 R)
• M50: 11,972,318 km (0.108 R)
• M51: 12,243,389 km (0.112 R)
• M52: 12,822,333 km (0.112 R)
• M53: 12,945,302 km (0.11 R)
• M54: 13,943,419 km (0.101 R)
• M55: 14,196,838 km (0.101 R)
• M56: 14,901,444 km (0.083 R)
• M57: 14,998,383 km (0.078 R)
• M58: 15,160,547 km (0.109 R)
• M59: 15,421,147 km (0.048 R)
• M60: 15,748,916 km (0.106 R)
• M61: 16,012,806 km (0.115 R)
• M62: 16,378,124 km (0.095 R)
• M63: 17,150,797 km (0.084 R)
• M64: 17,354,251 km (0.117 R)
• M65: 17,797,958 km (0.092 R)
• M66: 18,453,197 km (0.07 R)
• M67: 18,557,317 km (0.108 R)
• M68: 18,731,449 km (0.039 R)
• M69: 19,011,047 km (0.048 R)
• M70: 19,397,907 km (0.103 R)
• M71: 19,609,887 km (0.047 R)
• M72: 21,443,359 km (0.089 R)
• M73: 21,809,126 km (0.089 R)
• M74: 21,882,578 km (0.108 R)
• M75: 22,066,584 km (0.086 R)
• M76: 23,330,835 km (0.096 R)
• M77: 24,047,559 km (0.097 R)
• M78: 24,503,982 km (0.1 R)
• M79: 25,270,970 km (0.086 R)

Planet 8 - Gas Giant

Semi-Major Axis: 5.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 672.5

Radius: 14.1

Gravity: 3.38 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 4.34 AU - 5.98 AU

Year: 7816 Days

Day: 6.4 Hours

Environment

Temp: -232 °C

Axial Tilt: 55.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (76)

Outer Limit: 40,423,769 km

• M1: 176,675 km (0.11 R)
• M2: 438,920 km (0.051 R)
• M3: 666,459 km (0.096 R)
• M4: 796,758 km (0.111 R)
• M5: 1,069,026 km (0.105 R)
• M6: 1,262,008 km (0.099 R)
• M7: 1,372,560 km (0.094 R)
• M8: 1,525,300 km (0.055 R)
• M9: 1,786,049 km (0.119 R)
• M10: 2,083,749 km (0.073 R)
• M11: 2,351,828 km (0.072 R)
• M12: 2,537,030 km (0.118 R)
• M13: 2,824,109 km (0.114 R)
• M14: 3,021,428 km (0.063 R)
• M15: 3,377,920 km (0.084 R)
• M16: 3,829,406 km (0.079 R)
• M17: 3,993,366 km (0.11 R)
• M18: 4,470,882 km (0.106 R)
• M19: 4,672,989 km (0.108 R)
• M20: 4,907,558 km (0.091 R)
• M21: 5,056,258 km (0.028 R)
• M22: 5,358,147 km (0.105 R)
• M23: 5,728,252 km (0.058 R)
• M24: 6,299,118 km (0.116 R)
• M25: 6,558,670 km (0.087 R)
• M26: 7,495,302 km (0.037 R)
• M27: 7,598,076 km (0.106 R)
• M28: 7,736,005 km (0.117 R)
• M29: 7,839,976 km (0.09 R)
• M30: 8,084,419 km (0.117 R)
• M31: 8,366,859 km (0.104 R)
• M32: 8,760,601 km (0.063 R)
• M33: 9,123,825 km (0.05 R)
• M34: 9,270,430 km (0.097 R)
• M35: 10,319,261 km (0.069 R)
• M36: 10,974,500 km (0.089 R)
• M37: 11,762,581 km (0.076 R)
• M38: 13,061,390 km (0.077 R)
• M39: 15,224,127 km (0.047 R)
• M40: 15,398,408 km (0.087 R)
• M41: 15,573,438 km (0.039 R)
• M42: 15,793,047 km (0.088 R)
• M43: 16,502,889 km (0.115 R)
• M44: 16,726,837 km (0.097 R)
• M45: 17,587,174 km (0.109 R)
• M46: 17,724,206 km (0.079 R)
• M47: 18,091,768 km (0.072 R)
• M48: 19,209,414 km (0.051 R)
• M49: 19,586,999 km (0.09 R)
• M50: 20,397,370 km (0.092 R)
• M51: 21,072,954 km (0.082 R)
• M52: 21,267,432 km (0.111 R)
• M53: 21,903,372 km (0.064 R)
• M54: 23,595,923 km (0.088 R)
• M55: 24,509,068 km (0.086 R)
• M56: 24,918,517 km (0.114 R)
• M57: 27,105,638 km (0.034 R)
• M58: 27,370,127 km (0.111 R)
• M59: 27,954,905 km (0.096 R)
• M60: 28,758,994 km (0.075 R)
• M61: 29,462,104 km (0.119 R)
• M62: 29,679,619 km (0.07 R)
• M63: 30,664,871 km (0.083 R)
• M64: 30,885,228 km (0.104 R)
• M65: 31,772,194 km (0.11 R)
• M66: 31,939,445 km (0.035 R)
• M67: 32,162,794 km (0.096 R)
• M68: 32,892,533 km (0.081 R)
• M69: 33,231,222 km (0.06 R)
• M70: 33,570,959 km (0.085 R)
• M71: 34,082,883 km (0.115 R)
• M72: 35,865,790 km (0.115 R)
• M73: 37,619,825 km (0.054 R)
• M74: 38,626,170 km (0.061 R)
• M75: 39,761,468 km (0.086 R)
• M76: 40,001,872 km (0.098 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 348 - 11,952 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit