🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.33 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.66 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 449.9

Radius: 13.9

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 0.53 AU - 0.79 AU

Year: 358 Days

Day: 12.5 Hours

Environment

Temp: -151 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 21,921,726 km

• M1: 173,534 km (0.111 R)
• M2: 271,221 km (0.115 R)
• M3: 358,137 km (0.104 R)
• M4: 461,659 km (0.098 R)
• M5: 579,542 km (0.102 R)
• M6: 762,800 km (0.101 R)
• M7: 862,581 km (0.106 R)
• M8: 949,049 km (0.075 R)
• M9: 1,054,216 km (0.11 R)
• M10: 1,163,572 km (0.104 R)
• M11: 1,412,054 km (0.056 R)
• M12: 1,498,971 km (0.11 R)
• M13: 1,587,682 km (0.098 R)
• M14: 1,678,339 km (0.069 R)
• M15: 1,827,338 km (0.045 R)
• M16: 2,039,617 km (0.108 R)
• M17: 2,239,779 km (0.082 R)
• M18: 2,617,065 km (0.065 R)
• M19: 2,719,988 km (0.118 R)
• M20: 2,907,883 km (0.117 R)
• M21: 3,009,012 km (0.08 R)
• M22: 3,128,690 km (0.106 R)
• M23: 3,238,345 km (0.067 R)
• M24: 3,396,470 km (0.083 R)
• M25: 3,485,331 km (0.114 R)
• M26: 3,708,232 km (0.057 R)
• M27: 3,818,486 km (0.069 R)
• M28: 3,960,753 km (0.099 R)
• M29: 4,142,963 km (0.084 R)
• M30: 4,231,825 km (0.118 R)
• M31: 4,321,434 km (0.105 R)
• M32: 4,496,014 km (0.118 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 339.9

Radius: 12.2

Gravity: 2.28 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.54 AU - 0.88 AU

Year: 399 Days

Day: 14 Hours

Environment

Temp: -154 °C

Axial Tilt: 39.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 21,921,726 km

• M1: 165,754 km (0.08 R)
• M2: 269,127 km (0.095 R)
• M3: 371,152 km (0.058 R)
• M4: 486,642 km (0.12 R)
• M5: 572,361 km (0.119 R)
• M6: 696,228 km (0.054 R)
• M7: 775,515 km (0.063 R)
• M8: 904,618 km (0.087 R)
• M9: 1,095,356 km (0.082 R)
• M10: 1,205,908 km (0.099 R)
• M11: 1,312,273 km (0.104 R)
• M12: 1,426,266 km (0.073 R)
• M13: 1,570,179 km (0.105 R)
• M14: 1,650,962 km (0.071 R)
• M15: 1,812,079 km (0.102 R)
• M16: 2,150,320 km (0.085 R)
• M17: 2,235,591 km (0.12 R)
• M18: 2,347,639 km (0.083 R)
• M19: 2,466,869 km (0.119 R)
• M20: 2,593,578 km (0.081 R)
• M21: 2,765,915 km (0.092 R)
• M22: 2,842,509 km (0.107 R)
• M23: 2,936,457 km (0.063 R)
• M24: 3,042,821 km (0.029 R)
• M25: 3,150,531 km (0.109 R)
• M26: 3,358,023 km (0.115 R)
• M27: 3,534,549 km (0.093 R)
• M28: 3,641,960 km (0.043 R)
• M29: 3,909,142 km (0.102 R)
• M30: 4,057,543 km (0.095 R)
• M31: 4,138,775 km (0.089 R)
• M32: 4,283,885 km (0.027 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.77 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 424.7

Radius: 13.3

Gravity: 2.4 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.62 AU - 0.92 AU

Year: 451 Days

Day: 5.6 Hours

Environment

Temp: -168 °C

Axial Tilt: 39.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 21,921,726 km

• M1: 173,683 km (0.076 R)
• M2: 298,448 km (0.061 R)
• M3: 405,709 km (0.068 R)
• M4: 507,286 km (0.114 R)
• M5: 668,403 km (0.063 R)
• M6: 802,892 km (0.045 R)
• M7: 927,656 km (0.086 R)
• M8: 1,136,794 km (0.061 R)
• M9: 1,234,033 km (0.051 R)
• M10: 1,390,363 km (0.088 R)
• M11: 1,529,040 km (0.086 R)
• M12: 1,692,850 km (0.093 R)
• M13: 1,831,527 km (0.091 R)
• M14: 2,022,414 km (0.1 R)
• M15: 2,136,856 km (0.104 R)
• M16: 2,253,692 km (0.083 R)
• M17: 2,395,511 km (0.081 R)
• M18: 2,487,962 km (0.052 R)
• M19: 2,634,867 km (0.058 R)
• M20: 2,760,679 km (0.089 R)
• M21: 2,894,569 km (0.071 R)
• M22: 2,993,304 km (0.12 R)
• M23: 3,093,235 km (0.077 R)
• M24: 3,226,228 km (0.116 R)
• M25: 3,348,150 km (0.093 R)
• M26: 3,484,733 km (0.066 R)
• M27: 3,636,575 km (0.042 R)
• M28: 3,899,119 km (0.103 R)
• M29: 4,008,625 km (0.071 R)
• M30: 4,098,383 km (0.093 R)
• M31: 4,188,890 km (0.064 R)
• M32: 4,379,029 km (0.091 R)
• M33: 4,485,842 km (0.106 R)
• M34: 4,615,244 km (0.056 R)
• M35: 4,724,002 km (0.051 R)
• M36: 4,848,317 km (0.07 R)
• M37: 5,010,930 km (0.115 R)
• M38: 5,137,789 km (0.092 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 635.8

Radius: 14.7

Gravity: 2.94 G

Time & Orbit

Eccentricity (e): 0.174

Orbit Range: 0.72 AU - 1.02 AU

Year: 541 Days

Day: 5.4 Hours

Environment

Temp: -168 °C

Axial Tilt: 24.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (38)

Outer Limit: 21,921,726 km

• M1: 183,856 km (0.111 R)
• M2: 308,471 km (0.12 R)
• M3: 439,818 km (0.066 R)
• M4: 541,993 km (0.117 R)
• M5: 675,584 km (0.037 R)
• M6: 769,083 km (0.056 R)
• M7: 877,242 km (0.065 R)
• M8: 1,015,770 km (0.075 R)
• M9: 1,162,375 km (0.073 R)
• M10: 1,257,221 km (0.026 R)
• M11: 1,433,148 km (0.067 R)
• M12: 1,547,440 km (0.087 R)
• M13: 1,641,238 km (0.064 R)
• M14: 1,743,114 km (0.106 R)
• M15: 1,928,616 km (0.095 R)
• M16: 2,524,763 km (0.106 R)
• M17: 2,636,662 km (0.035 R)
• M18: 3,214,260 km (0.064 R)
• M19: 3,459,600 km (0.118 R)
• M20: 3,584,664 km (0.101 R)
• M21: 3,727,231 km (0.12 R)
• M22: 3,823,273 km (0.105 R)
• M23: 3,920,212 km (0.028 R)
• M24: 4,034,355 km (0.103 R)
• M25: 4,232,722 km (0.11 R)
• M26: 4,392,044 km (0.089 R)
• M27: 4,708,144 km (0.051 R)
• M28: 4,803,588 km (0.09 R)
• M29: 4,899,779 km (0.118 R)
• M30: 5,076,155 km (0.105 R)
• M31: 5,227,847 km (0.119 R)
• M32: 5,390,011 km (0.074 R)
• M33: 5,517,469 km (0.094 R)
• M34: 5,627,423 km (0.025 R)
• M35: 5,719,725 km (0.079 R)
• M36: 5,840,301 km (0.096 R)
• M37: 5,943,075 km (0.112 R)
• M38: 6,350,729 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.4 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 825.4

Radius: 9

Gravity: 10.19 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 2.71 AU - 4.09 AU

Year: 4181 Days

Day: 10 Hours

Environment

Temp: -225 °C

Axial Tilt: 25.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (73)

Outer Limit: 21,921,726 km

• M1: 114,442 km (0.119 R)
• M2: 186,249 km (0.102 R)
• M3: 252,222 km (0.095 R)
• M4: 383,120 km (0.116 R)
• M5: 604,525 km (0.088 R)
• M6: 866,172 km (0.101 R)
• M7: 1,134,101 km (0.119 R)
• M8: 1,190,949 km (0.049 R)
• M9: 1,248,693 km (0.042 R)
• M10: 1,352,215 km (0.081 R)
• M11: 2,033,185 km (0.099 R)
• M12: 2,173,657 km (0.079 R)
• M13: 2,299,319 km (0.056 R)
• M14: 2,445,925 km (0.033 R)
• M15: 2,633,671 km (0.047 R)
• M16: 3,224,881 km (0.075 R)
• M17: 3,683,997 km (0.101 R)
• M18: 4,230,777 km (0.069 R)
• M19: 4,365,864 km (0.094 R)
• M20: 4,709,790 km (0.076 R)
• M21: 4,779,502 km (0.115 R)
• M22: 4,991,183 km (0.099 R)
• M23: 5,062,392 km (0.099 R)
• M24: 5,693,994 km (0.09 R)
• M25: 6,069,634 km (0.052 R)
• M26: 6,145,780 km (0.058 R)
• M27: 6,505,114 km (0.076 R)
• M28: 6,609,084 km (0.081 R)
• M29: 6,792,342 km (0.04 R)
• M30: 6,977,245 km (0.096 R)
• M31: 7,871,541 km (0.104 R)
• M32: 8,121,668 km (0.074 R)
• M33: 8,744,145 km (0.115 R)
• M34: 9,499,614 km (0.102 R)
• M35: 9,647,267 km (0.026 R)
• M36: 10,124,933 km (0.03 R)
• M37: 10,366,684 km (0.114 R)
• M38: 10,948,619 km (0.079 R)
• M39: 11,134,570 km (0.062 R)
• M40: 11,730,268 km (0.076 R)
• M41: 11,888,692 km (0.081 R)
• M42: 12,497,556 km (0.05 R)
• M43: 13,116,442 km (0.083 R)
• M44: 13,314,061 km (0.052 R)
• M45: 13,512,577 km (0.103 R)
• M46: 14,181,429 km (0.113 R)
• M47: 14,621,845 km (0.058 R)
• M48: 14,895,310 km (0.073 R)
• M49: 15,377,614 km (0.085 R)
• M50: 15,516,441 km (0.1 R)
• M51: 15,830,147 km (0.036 R)
• M52: 16,181,403 km (0.074 R)
• M53: 16,464,143 km (0.083 R)
• M54: 16,677,171 km (0.098 R)
• M55: 17,430,396 km (0.103 R)
• M56: 17,683,964 km (0.073 R)
• M57: 18,121,388 km (0.109 R)
• M58: 19,530,152 km (0.09 R)
• M59: 20,057,933 km (0.096 R)
• M60: 20,437,911 km (0.104 R)
• M61: 21,243,496 km (0.115 R)
• M62: 21,553,014 km (0.075 R)
• M63: 21,981,163 km (0.102 R)
• M64: 22,412,155 km (0.092 R)
• M65: 22,766,851 km (0.1 R)
• M66: 24,002,829 km (0.112 R)
• M67: 26,041,848 km (0.045 R)
• M68: 26,165,864 km (0.116 R)
• M69: 26,414,646 km (0.079 R)
• M70: 26,497,822 km (0.109 R)
• M71: 26,622,587 km (0.098 R)
• M72: 27,839,266 km (0.112 R)
• M73: 28,518,291 km (0.053 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.97 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 439.7

Radius: 12.9

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.232

Orbit Range: 3.82 AU - 6.12 AU

Year: 7389 Days

Day: 12.8 Hours

Environment

Temp: -214 °C

Axial Tilt: 39.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (82)

Outer Limit: 21,921,726 km

• M1: 168,896 km (0.116 R)
• M2: 285,433 km (0.068 R)
• M3: 371,302 km (0.1 R)
• M4: 470,784 km (0.102 R)
• M5: 730,636 km (0.091 R)
• M6: 1,523,654 km (0.062 R)
• M7: 1,755,082 km (0.078 R)
• M8: 2,017,477 km (0.095 R)
• M9: 2,114,267 km (0.094 R)
• M10: 2,312,933 km (0.057 R)
• M11: 2,517,882 km (0.079 R)
• M12: 2,643,694 km (0.086 R)
• M13: 2,814,983 km (0.049 R)
• M14: 3,305,066 km (0.089 R)
• M15: 3,773,905 km (0.117 R)
• M16: 3,991,870 km (0.065 R)
• M17: 4,114,839 km (0.083 R)
• M18: 4,214,172 km (0.093 R)
• M19: 4,593,552 km (0.05 R)
• M20: 4,696,625 km (0.081 R)
• M21: 4,800,596 km (0.094 R)
• M22: 5,223,808 km (0.084 R)
• M23: 5,412,900 km (0.107 R)
• M24: 5,604,235 km (0.113 R)
• M25: 5,993,639 km (0.102 R)
• M26: 6,134,859 km (0.103 R)
• M27: 6,305,849 km (0.111 R)
• M28: 6,420,741 km (0.067 R)
• M29: 6,681,639 km (0.114 R)
• M30: 7,822,173 km (0.112 R)
• M31: 8,007,824 km (0.11 R)
• M32: 8,226,237 km (0.091 R)
• M33: 8,320,484 km (0.058 R)
• M34: 8,478,310 km (0.117 R)
• M35: 8,573,454 km (0.1 R)
• M36: 8,732,925 km (0.099 R)
• M37: 9,380,534 km (0.034 R)
• M38: 10,178,041 km (0.111 R)
• M39: 10,347,086 km (0.111 R)
• M40: 10,790,644 km (0.072 R)
• M41: 11,205,629 km (0.111 R)
• M42: 11,450,221 km (0.106 R)
• M43: 12,626,808 km (0.1 R)
• M44: 13,137,535 km (0.057 R)
• M45: 14,254,882 km (0.067 R)
• M46: 14,978,188 km (0.081 R)
• M47: 15,209,167 km (0.09 R)
• M48: 15,752,506 km (0.11 R)
• M49: 16,065,914 km (0.092 R)
• M50: 16,183,946 km (0.043 R)
• M51: 16,381,416 km (0.08 R)
• M52: 17,179,071 km (0.11 R)
• M53: 17,623,228 km (0.105 R)
• M54: 17,948,603 km (0.113 R)
• M55: 18,481,620 km (0.115 R)
• M56: 18,853,670 km (0.043 R)
• M57: 19,395,514 km (0.114 R)
• M58: 19,984,780 km (0.092 R)
• M59: 20,154,124 km (0.066 R)
• M60: 20,281,582 km (0.112 R)
• M61: 20,579,880 km (0.115 R)
• M62: 21,700,518 km (0.093 R)
• M63: 22,093,062 km (0.053 R)
• M64: 23,151,467 km (0.047 R)
• M65: 23,373,919 km (0.076 R)
• M66: 24,497,399 km (0.049 R)
• M67: 24,906,250 km (0.068 R)
• M68: 25,363,122 km (0.088 R)
• M69: 25,454,826 km (0.11 R)
• M70: 26,146,117 km (0.115 R)
• M71: 27,217,986 km (0.078 R)
• M72: 27,641,348 km (0.08 R)
• M73: 28,972,470 km (0.115 R)
• M74: 29,260,446 km (0.03 R)
• M75: 29,597,640 km (0.117 R)
• M76: 30,421,774 km (0.106 R)
• M77: 30,665,619 km (0.067 R)
• M78: 30,910,211 km (0.115 R)
• M79: 31,302,756 km (0.08 R)
• M80: 32,589,896 km (0.077 R)
• M81: 33,239,899 km (0.065 R)
• M82: 33,793,411 km (0.117 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.16 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 341.6

Radius: 11.5

Gravity: 2.58 G

Time & Orbit

Eccentricity (e): 0.097

Orbit Range: 4.66 AU - 5.66 AU

Year: 7816 Days

Day: 8.5 Hours

Environment

Temp: -228 °C

Axial Tilt: 22.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (81)

Outer Limit: 21,921,726 km

• M1: 161,865 km (0.112 R)
• M2: 269,875 km (0.111 R)
• M3: 399,875 km (0.117 R)
• M4: 480,658 km (0.076 R)
• M5: 614,997 km (0.105 R)
• M6: 789,428 km (0.037 R)
• M7: 981,212 km (0.053 R)
• M8: 1,128,118 km (0.046 R)
• M9: 1,411,606 km (0.063 R)
• M10: 1,665,473 km (0.095 R)
• M11: 1,843,195 km (0.099 R)
• M12: 2,064,750 km (0.107 R)
• M13: 2,275,683 km (0.09 R)
• M14: 2,413,612 km (0.062 R)
• M15: 2,615,719 km (0.118 R)
• M16: 2,823,361 km (0.109 R)
• M17: 2,929,276 km (0.081 R)
• M18: 3,058,229 km (0.086 R)
• M19: 3,570,153 km (0.119 R)
• M20: 3,801,132 km (0.063 R)
• M21: 4,205,047 km (0.087 R)
• M22: 4,474,024 km (0.088 R)
• M23: 4,824,382 km (0.085 R)
• M24: 5,235,776 km (0.099 R)
• M25: 5,712,245 km (0.083 R)
• M26: 6,064,997 km (0.099 R)
• M27: 6,257,978 km (0.071 R)
• M28: 6,649,925 km (0.045 R)
• M29: 6,934,908 km (0.079 R)
• M30: 9,260,557 km (0.089 R)
• M31: 9,675,093 km (0.108 R)
• M32: 9,900,985 km (0.068 R)
• M33: 10,095,911 km (0.049 R)
• M34: 10,555,626 km (0.107 R)
• M35: 11,123,200 km (0.111 R)
• M36: 11,427,781 km (0.08 R)
• M37: 11,975,908 km (0.03 R)
• M38: 12,288,119 km (0.04 R)
• M39: 12,708,489 km (0.044 R)
• M40: 13,455,580 km (0.11 R)
• M41: 13,599,494 km (0.044 R)
• M42: 15,029,350 km (0.085 R)
• M43: 15,216,198 km (0.088 R)
• M44: 15,403,794 km (0.086 R)
• M45: 16,815,399 km (0.088 R)
• M46: 17,204,054 km (0.113 R)
• M47: 17,399,429 km (0.091 R)
• M48: 17,990,191 km (0.109 R)
• M49: 18,268,144 km (0.091 R)
• M50: 18,787,997 km (0.086 R)
• M51: 19,475,249 km (0.027 R)
• M52: 19,679,001 km (0.045 R)
• M53: 20,418,165 km (0.07 R)
• M54: 20,999,502 km (0.097 R)
• M55: 21,292,115 km (0.109 R)
• M56: 21,586,225 km (0.115 R)
• M57: 21,712,635 km (0.11 R)
• M58: 22,561,752 km (0.112 R)
• M59: 22,647,173 km (0.103 R)
• M60: 23,205,771 km (0.119 R)
• M61: 23,595,025 km (0.112 R)
• M62: 24,204,935 km (0.119 R)
• M63: 24,423,947 km (0.088 R)
• M64: 24,511,761 km (0.071 R)
• M65: 24,643,706 km (0.075 R)
• M66: 24,819,932 km (0.085 R)
• M67: 25,173,731 km (0.08 R)
• M68: 25,351,304 km (0.066 R)
• M69: 25,662,916 km (0.037 R)
• M70: 26,110,364 km (0.088 R)
• M71: 26,380,089 km (0.055 R)
• M72: 26,967,709 km (0.069 R)
• M73: 27,149,321 km (0.063 R)
• M74: 27,285,904 km (0.104 R)
• M75: 28,478,498 km (0.104 R)
• M76: 29,220,802 km (0.096 R)
• M77: 29,594,498 km (0.068 R)
• M78: 30,299,254 km (0.086 R)
• M79: 31,009,544 km (0.03 R)
• M80: 32,157,409 km (0.077 R)
• M81: 32,253,600 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.59 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 33.7

Radius: 5.5

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.245

Orbit Range: 5.73 AU - 9.45 AU

Year: 13944 Days

Day: 16.9 Hours

Environment

Temp: -225 °C

Axial Tilt: 2.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (36)

Outer Limit: 21,921,726 km

• M1: 455,974 km (0.056 R)
• M2: 526,285 km (0.034 R)
• M3: 2,323,405 km (0.09 R)
• M4: 2,447,571 km (0.109 R)
• M5: 2,999,138 km (0.118 R)
• M6: 3,185,537 km (0.083 R)
• M7: 3,822,076 km (0.085 R)
• M8: 4,061,433 km (0.066 R)
• M9: 4,439,167 km (0.089 R)
• M10: 5,350,069 km (0.1 R)
• M11: 6,294,929 km (0.077 R)
• M12: 6,687,174 km (0.12 R)
• M13: 6,775,437 km (0.08 R)
• M14: 7,109,938 km (0.097 R)
• M15: 7,154,817 km (0.098 R)
• M16: 7,702,196 km (0.119 R)
• M17: 7,841,172 km (0.078 R)
• M18: 7,910,885 km (0.095 R)
• M19: 8,933,536 km (0.104 R)
• M20: 9,079,544 km (0.094 R)
• M21: 9,201,915 km (0.113 R)
• M22: 9,300,051 km (0.113 R)
• M23: 9,472,836 km (0.083 R)
• M24: 9,621,686 km (0.104 R)
• M25: 10,022,459 km (0.045 R)
• M26: 10,970,012 km (0.105 R)
• M27: 12,730,180 km (0.083 R)
• M28: 13,951,497 km (0.11 R)
• M29: 14,036,020 km (0.113 R)
• M30: 16,354,787 km (0.094 R)
• M31: 17,618,889 km (0.086 R)
• M32: 17,771,479 km (0.077 R)
• M33: 18,016,371 km (0.075 R)
• M34: 20,527,521 km (0.117 R)
• M35: 20,720,203 km (0.107 R)
• M36: 21,042,736 km (0.113 R)

Kuiper Belt

Range: 30 - 53 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 423 - 17,886 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit