🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.46 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.91 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 387.3

Radius: 13.9

Gravity: 2 G

Time & Orbit

Eccentricity (e): 0.077

Orbit Range: 0.84 AU - 0.98 AU

Year: 579 Days

Day: 8.5 Hours

Environment

Temp: -170 °C

Axial Tilt: 8.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 51,837,101 km

• M1: 173,384 km (0.054 R)
• M2: 272,717 km (0.087 R)
• M3: 368,759 km (0.086 R)
• M4: 494,122 km (0.053 R)
• M5: 680,222 km (0.064 R)
• M6: 771,177 km (0.07 R)
• M7: 888,312 km (0.114 R)
• M8: 1,021,454 km (0.062 R)
• M9: 1,152,352 km (0.078 R)
• M10: 1,284,447 km (0.101 R)
• M11: 1,375,403 km (0.114 R)
• M12: 1,537,717 km (0.088 R)
• M13: 1,635,105 km (0.048 R)
• M14: 1,723,517 km (0.068 R)
• M15: 1,813,575 km (0.063 R)
• M16: 1,916,947 km (0.099 R)
• M17: 2,004,611 km (0.104 R)
• M18: 2,166,177 km (0.116 R)
• M19: 2,294,831 km (0.079 R)
• M20: 2,401,046 km (0.097 R)
• M21: 2,553,785 km (0.115 R)
• M22: 2,756,042 km (0.07 R)
• M23: 2,896,065 km (0.091 R)
• M24: 3,011,256 km (0.106 R)
• M25: 3,155,767 km (0.062 R)
• M26: 3,366,251 km (0.032 R)
• M27: 3,509,267 km (0.042 R)
• M28: 3,610,545 km (0.084 R)
• M29: 3,757,001 km (0.113 R)
• M30: 3,913,032 km (0.116 R)
• M31: 4,018,199 km (0.101 R)
• M32: 4,132,043 km (0.051 R)
• M33: 4,285,530 km (0.1 R)
• M34: 4,614,047 km (0.083 R)
• M35: 4,821,539 km (0.106 R)
• M36: 4,926,557 km (0.073 R)
• M37: 5,155,143 km (0.109 R)
• M38: 5,337,353 km (0.108 R)
• M39: 5,437,583 km (0.083 R)
• M40: 5,888,172 km (0.103 R)

Planet 2 - Gas Giant

Semi-Major Axis: 1.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 345

Radius: 12.8

Gravity: 2.11 G

Time & Orbit

Eccentricity (e): 0.237

Orbit Range: 0.94 AU - 1.52 AU

Year: 910 Days

Day: 6.3 Hours

Environment

Temp: -181 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (46)

Outer Limit: 51,837,101 km

• M1: 170,392 km (0.076 R)
• M2: 261,946 km (0.1 R)
• M3: 346,469 km (0.05 R)
• M4: 442,361 km (0.107 R)
• M5: 559,197 km (0.094 R)
• M6: 688,749 km (0.041 R)
• M7: 901,776 km (0.118 R)
• M8: 1,047,484 km (0.029 R)
• M9: 1,230,891 km (0.095 R)
• M10: 1,369,569 km (0.085 R)
• M11: 1,558,959 km (0.096 R)
• M12: 1,676,843 km (0.116 R)
• M13: 1,838,857 km (0.113 R)
• M14: 2,099,157 km (0.101 R)
• M15: 2,281,966 km (0.119 R)
• M16: 2,454,901 km (0.1 R)
• M17: 2,814,086 km (0.114 R)
• M18: 2,894,569 km (0.116 R)
• M19: 3,032,947 km (0.114 R)
• M20: 3,123,753 km (0.091 R)
• M21: 3,257,494 km (0.102 R)
• M22: 3,359,071 km (0.109 R)
• M23: 3,461,695 km (0.064 R)
• M24: 3,723,042 km (0.077 R)
• M25: 3,963,895 km (0.067 R)
• M26: 4,045,276 km (0.12 R)
• M27: 4,265,185 km (0.089 R)
• M28: 4,423,459 km (0.111 R)
• M29: 4,593,103 km (0.106 R)
• M30: 4,678,823 km (0.091 R)
• M31: 4,774,566 km (0.119 R)
• M32: 4,929,250 km (0.095 R)
• M33: 5,026,788 km (0.026 R)
• M34: 5,125,073 km (0.045 R)
• M35: 5,283,498 km (0.034 R)
• M36: 5,595,260 km (0.105 R)
• M37: 5,676,641 km (0.11 R)
• M38: 5,913,005 km (0.11 R)
• M39: 6,016,826 km (0.05 R)
• M40: 6,110,774 km (0.093 R)
• M41: 6,236,885 km (0.081 R)
• M42: 6,587,991 km (0.039 R)
• M43: 6,880,006 km (0.043 R)
• M44: 7,011,203 km (0.118 R)
• M45: 7,143,298 km (0.104 R)
• M46: 7,477,051 km (0.041 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.8 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 470.1

Radius: 14.2

Gravity: 2.33 G

Time & Orbit

Eccentricity (e): 0.244

Orbit Range: 1.36 AU - 2.24 AU

Year: 1610 Days

Day: 10.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (60)

Outer Limit: 51,837,101 km

• M1: 177,722 km (0.119 R)
• M2: 279,000 km (0.108 R)
• M3: 390,600 km (0.079 R)
• M4: 498,610 km (0.111 R)
• M5: 695,929 km (0.102 R)
• M6: 843,732 km (0.065 R)
• M7: 951,442 km (0.086 R)
• M8: 1,206,507 km (0.098 R)
• M9: 1,380,938 km (0.06 R)
• M10: 1,475,933 km (0.109 R)
• M11: 1,600,099 km (0.052 R)
• M12: 1,709,604 km (0.056 R)
• M13: 1,831,228 km (0.108 R)
• M14: 1,985,164 km (0.079 R)
• M15: 2,113,369 km (0.089 R)
• M16: 2,224,221 km (0.087 R)
• M17: 2,389,078 km (0.088 R)
• M18: 2,633,521 km (0.115 R)
• M19: 2,731,358 km (0.081 R)
• M20: 2,953,511 km (0.076 R)
• M21: 3,101,164 km (0.042 R)
• M22: 3,439,405 km (0.109 R)
• M23: 3,595,136 km (0.058 R)
• M24: 3,963,446 km (0.081 R)
• M25: 4,228,533 km (0.117 R)
• M26: 4,473,575 km (0.083 R)
• M27: 4,964,256 km (0.027 R)
• M28: 5,099,791 km (0.096 R)
• M29: 5,430,403 km (0.12 R)
• M30: 5,598,401 km (0.115 R)
• M31: 5,725,559 km (0.106 R)
• M32: 6,156,252 km (0.097 R)
• M33: 6,287,599 km (0.062 R)
• M34: 6,405,182 km (0.116 R)
• M35: 6,508,555 km (0.111 R)
• M36: 6,732,203 km (0.115 R)
• M37: 6,882,549 km (0.107 R)
• M38: 7,511,309 km (0.104 R)
• M39: 7,683,197 km (0.072 R)
• M40: 7,935,419 km (0.071 R)
• M41: 8,030,713 km (0.096 R)
• M42: 8,206,490 km (0.084 R)
• M43: 8,676,078 km (0.091 R)
• M44: 8,840,187 km (0.071 R)
• M45: 8,955,527 km (0.075 R)
• M46: 9,354,953 km (0.089 R)
• M47: 9,675,541 km (0.114 R)
• M48: 9,879,743 km (0.077 R)
• M49: 10,068,236 km (0.085 R)
• M50: 10,327,339 km (0.082 R)
• M51: 10,431,460 km (0.034 R)
• M52: 10,536,028 km (0.117 R)
• M53: 10,693,555 km (0.116 R)
• M54: 10,834,327 km (0.099 R)
• M55: 11,011,002 km (0.103 R)
• M56: 11,135,318 km (0.115 R)
• M57: 11,565,112 km (0.105 R)
• M58: 11,709,474 km (0.118 R)
• M59: 12,146,599 km (0.094 R)
• M60: 12,385,507 km (0.106 R)

Planet 4 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 597

Radius: 14.5

Gravity: 2.84 G

Time & Orbit

Eccentricity (e): 0.134

Orbit Range: 1.97 AU - 2.57 AU

Year: 2281 Days

Day: 13.2 Hours

Environment

Temp: -202 °C

Axial Tilt: 35.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (65)

Outer Limit: 51,837,101 km

• M1: 300,692 km (0.075 R)
• M2: 467,045 km (0.118 R)
• M3: 599,439 km (0.076 R)
• M4: 797,357 km (0.115 R)
• M5: 918,681 km (0.055 R)
• M6: 1,202,318 km (0.112 R)
• M7: 1,355,207 km (0.102 R)
• M8: 1,504,207 km (0.114 R)
• M9: 1,681,480 km (0.066 R)
• M10: 1,819,409 km (0.093 R)
• M11: 1,985,164 km (0.06 R)
• M12: 2,156,154 km (0.116 R)
• M13: 2,780,426 km (0.068 R)
• M14: 2,917,458 km (0.064 R)
• M15: 3,113,281 km (0.06 R)
• M16: 3,313,593 km (0.081 R)
• M17: 3,697,012 km (0.067 R)
• M18: 3,940,109 km (0.074 R)
• M19: 4,283,286 km (0.1 R)
• M20: 4,394,437 km (0.101 R)
• M21: 4,538,949 km (0.079 R)
• M22: 4,701,412 km (0.099 R)
• M23: 5,115,948 km (0.111 R)
• M24: 5,285,143 km (0.101 R)
• M25: 5,594,512 km (0.057 R)
• M26: 6,051,982 km (0.111 R)
• M27: 6,267,253 km (0.087 R)
• M28: 6,393,963 km (0.081 R)
• M29: 6,576,472 km (0.105 R)
• M30: 6,742,226 km (0.069 R)
• M31: 7,324,162 km (0.117 R)
• M32: 7,515,348 km (0.077 R)
• M33: 7,669,434 km (0.107 R)
• M34: 7,824,717 km (0.067 R)
• M35: 8,416,077 km (0.051 R)
• M36: 8,697,022 km (0.101 R)
• M37: 8,940,418 km (0.111 R)
• M38: 9,083,433 km (0.109 R)
• M39: 9,268,336 km (0.115 R)
• M40: 9,537,762 km (0.053 R)
• M41: 9,978,477 km (0.039 R)
• M42: 10,706,271 km (0.075 R)
• M43: 10,814,729 km (0.113 R)
• M44: 11,252,303 km (0.103 R)
• M45: 11,384,697 km (0.103 R)
• M46: 11,942,099 km (0.1 R)
• M47: 12,054,596 km (0.104 R)
• M48: 12,235,460 km (0.062 R)
• M49: 12,829,364 km (0.096 R)
• M50: 13,176,281 km (0.054 R)
• M51: 13,386,017 km (0.086 R)
• M52: 13,573,314 km (0.094 R)
• M53: 13,690,898 km (0.117 R)
• M54: 13,926,963 km (0.086 R)
• M55: 14,116,653 km (0.089 R)
• M56: 14,307,391 km (0.115 R)
• M57: 14,691,408 km (0.079 R)
• M58: 14,812,134 km (0.03 R)
• M59: 15,298,177 km (0.11 R)
• M60: 15,518,535 km (0.118 R)
• M61: 15,666,188 km (0.055 R)
• M62: 16,062,024 km (0.107 R)
• M63: 16,286,122 km (0.05 R)
• M64: 16,386,053 km (0.118 R)
• M65: 16,813,005 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.18 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 233.8

Radius: 10.3

Gravity: 2.2 G

Time & Orbit

Eccentricity (e): 0.123

Orbit Range: 2.79 AU - 3.57 AU

Year: 3782 Days

Day: 5.5 Hours

Environment

Temp: -204 °C

Axial Tilt: 0.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (70)

Outer Limit: 51,837,101 km

• M1: 130,898 km (0.066 R)
• M2: 223,050 km (0.039 R)
• M3: 294,109 km (0.098 R)
• M4: 403,017 km (0.104 R)
• M5: 492,476 km (0.115 R)
• M6: 832,961 km (0.114 R)
• M7: 952,639 km (0.033 R)
• M8: 1,048,831 km (0.074 R)
• M9: 1,148,463 km (0.062 R)
• M10: 1,220,120 km (0.088 R)
• M11: 1,390,213 km (0.114 R)
• M12: 1,718,580 km (0.078 R)
• M13: 1,983,967 km (0.088 R)
• M14: 2,211,057 km (0.105 R)
• M15: 2,540,621 km (0.119 R)
• M16: 2,622,151 km (0.114 R)
• M17: 2,829,644 km (0.11 R)
• M18: 2,956,952 km (0.097 R)
• M19: 3,143,949 km (0.055 R)
• M20: 3,364,755 km (0.064 R)
• M21: 3,621,316 km (0.113 R)
• M22: 3,697,910 km (0.107 R)
• M23: 4,314,552 km (0.086 R)
• M24: 4,379,627 km (0.116 R)
• M25: 4,510,675 km (0.043 R)
• M26: 4,726,694 km (0.099 R)
• M27: 5,151,552 km (0.066 R)
• M28: 5,429,954 km (0.112 R)
• M29: 5,517,917 km (0.119 R)
• M30: 5,624,132 km (0.116 R)
• M31: 5,820,853 km (0.081 R)
• M32: 6,037,920 km (0.093 R)
• M33: 6,165,676 km (0.116 R)
• M34: 6,856,669 km (0.118 R)
• M35: 6,951,813 km (0.099 R)
• M36: 7,105,151 km (0.111 R)
• M37: 7,591,643 km (0.112 R)
• M38: 7,670,481 km (0.105 R)
• M39: 7,749,618 km (0.098 R)
• M40: 8,108,953 km (0.088 R)
• M41: 8,371,946 km (0.041 R)
• M42: 8,555,652 km (0.037 R)
• M43: 8,699,565 km (0.073 R)
• M44: 9,346,127 km (0.096 R)
• M45: 9,621,985 km (0.071 R)
• M46: 9,771,583 km (0.085 R)
• M47: 9,986,705 km (0.12 R)
• M48: 10,597,214 km (0.044 R)
• M49: 10,685,477 km (0.078 R)
• M50: 10,840,460 km (0.11 R)
• M51: 11,040,772 km (0.071 R)
• M52: 11,558,530 km (0.109 R)
• M53: 11,831,696 km (0.063 R)
• M54: 12,477,510 km (0.058 R)
• M55: 12,687,545 km (0.119 R)
• M56: 13,182,265 km (0.114 R)
• M57: 13,372,254 km (0.112 R)
• M58: 14,190,405 km (0.082 R)
• M59: 14,385,331 km (0.083 R)
• M60: 14,802,261 km (0.11 R)
• M61: 15,323,011 km (0.096 R)
• M62: 15,447,775 km (0.042 R)
• M63: 15,774,048 km (0.108 R)
• M64: 15,975,856 km (0.091 R)
• M65: 16,077,134 km (0.114 R)
• M66: 16,305,869 km (0.062 R)
• M67: 16,586,664 km (0.062 R)
• M68: 16,946,596 km (0.09 R)
• M69: 17,049,819 km (0.106 R)
• M70: 17,517,163 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.17 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 25.3

Radius: 14

Gravity: 0.13 G

Time & Orbit

Eccentricity (e): 0.24

Orbit Range: 3.93 AU - 6.41 AU

Year: 7839 Days

Day: 9.1 Hours

Environment

Temp: -231 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (50)

Outer Limit: 51,837,101 km

• M1: 185,501 km (0.099 R)
• M2: 277,354 km (0.109 R)
• M3: 396,135 km (0.077 R)
• M4: 511,924 km (0.106 R)
• M5: 669,600 km (0.118 R)
• M6: 809,324 km (0.1 R)
• M7: 898,634 km (0.111 R)
• M8: 1,063,940 km (0.084 R)
• M9: 1,231,490 km (0.093 R)
• M10: 1,336,657 km (0.107 R)
• M11: 1,613,413 km (0.1 R)
• M12: 1,719,777 km (0.066 R)
• M13: 1,868,926 km (0.119 R)
• M14: 2,085,095 km (0.118 R)
• M15: 2,531,346 km (0.084 R)
• M16: 2,725,374 km (0.083 R)
• M17: 3,152,775 km (0.118 R)
• M18: 3,462,144 km (0.094 R)
• M19: 3,614,285 km (0.115 R)
• M20: 3,872,939 km (0.052 R)
• M21: 3,964,942 km (0.092 R)
• M22: 4,057,543 km (0.077 R)
• M23: 4,204,897 km (0.083 R)
• M24: 4,546,130 km (0.112 R)
• M25: 5,168,756 km (0.112 R)
• M26: 5,446,110 km (0.09 R)
• M27: 5,788,390 km (0.08 R)
• M28: 6,525,459 km (0.058 R)
• M29: 6,857,417 km (0.11 R)
• M30: 7,162,447 km (0.075 R)
• M31: 7,603,761 km (0.116 R)
• M32: 7,703,094 km (0.098 R)
• M33: 7,936,466 km (0.106 R)
• M34: 8,444,351 km (0.105 R)
• M35: 9,190,994 km (0.105 R)
• M36: 9,314,562 km (0.086 R)
• M37: 9,420,926 km (0.087 R)
• M38: 9,832,320 km (0.105 R)
• M39: 10,031,136 km (0.072 R)
• M40: 10,140,192 km (0.114 R)
• M41: 10,231,447 km (0.089 R)
• M42: 10,414,705 km (0.118 R)
• M43: 10,933,360 km (0.066 R)
• M44: 11,026,859 km (0.089 R)
• M45: 11,177,205 km (0.116 R)
• M46: 11,574,686 km (0.091 R)
• M47: 12,054,148 km (0.038 R)
• M48: 12,170,086 km (0.06 R)
• M49: 12,677,223 km (0.12 R)
• M50: 13,551,174 km (0.117 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.03 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 264.6

Radius: 3.4

Gravity: 22.89 G

Time & Orbit

Eccentricity (e): 0.116

Orbit Range: 7.98 AU - 10.08 AU

Year: 18095 Days

Day: 18.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 11.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (93)

Outer Limit: 51,837,101 km

• M1: 46,974 km (0.111 R)
• M2: 110,403 km (0.035 R)
• M3: 234,869 km (0.119 R)
• M4: 297,999 km (0.049 R)
• M5: 324,927 km (0.046 R)
• M6: 381,475 km (0.112 R)
• M7: 441,164 km (0.119 R)
• M8: 553,213 km (0.086 R)
• M9: 1,063,790 km (0.104 R)
• M10: 1,280,857 km (0.109 R)
• M11: 1,983,668 km (0.117 R)
• M12: 2,009,698 km (0.109 R)
• M13: 2,784,615 km (0.1 R)
• M14: 2,843,108 km (0.077 R)
• M15: 2,961,439 km (0.093 R)
• M16: 3,051,348 km (0.107 R)
• M17: 3,203,040 km (0.112 R)
• M18: 4,030,765 km (0.05 R)
• M19: 4,365,864 km (0.107 R)
• M20: 5,026,638 km (0.099 R)
• M21: 5,423,372 km (0.095 R)
• M22: 6,829,891 km (0.089 R)
• M23: 7,716,258 km (0.117 R)
• M24: 7,798,687 km (0.107 R)
• M25: 7,881,414 km (0.036 R)
• M26: 7,964,291 km (0.117 R)
• M27: 8,005,880 km (0.078 R)
• M28: 8,468,137 km (0.106 R)
• M29: 9,242,904 km (0.115 R)
• M30: 9,861,043 km (0.094 R)
• M31: 10,721,081 km (0.076 R)
• M32: 11,370,037 km (0.1 R)
• M33: 12,127,301 km (0.11 R)
• M34: 12,463,597 km (0.112 R)
• M35: 13,047,328 km (0.087 R)
• M36: 14,291,683 km (0.043 R)
• M37: 14,392,811 km (0.098 R)
• M38: 14,697,841 km (0.108 R)
• M39: 14,953,654 km (0.091 R)
• M40: 15,625,498 km (0.077 R)
• M41: 15,729,618 km (0.079 R)
• M42: 15,886,546 km (0.094 R)
• M43: 16,254,257 km (0.074 R)
• M44: 16,571,854 km (0.059 R)
• M45: 16,731,325 km (0.061 R)
• M46: 16,837,988 km (0.068 R)
• M47: 17,051,913 km (0.087 R)
• M48: 18,354,462 km (0.078 R)
• M49: 18,464,566 km (0.115 R)
• M50: 21,747,641 km (0.12 R)
• M51: 21,922,371 km (0.092 R)
• M52: 22,214,536 km (0.108 R)
• M53: 22,449,105 km (0.097 R)
• M54: 22,507,897 km (0.07 R)
• M55: 22,861,696 km (0.076 R)
• M56: 24,718,655 km (0.119 R)
• M57: 25,083,673 km (0.08 R)
• M58: 26,003,850 km (0.07 R)
• M59: 28,066,805 km (0.095 R)
• M60: 28,256,943 km (0.114 R)
• M61: 29,535,407 km (0.039 R)
• M62: 30,636,896 km (0.112 R)
• M63: 31,028,842 km (0.109 R)
• M64: 31,619,904 km (0.056 R)
• M65: 31,685,876 km (0.029 R)
• M66: 33,013,408 km (0.078 R)
• M67: 33,482,397 km (0.044 R)
• M68: 34,088,568 km (0.107 R)
• M69: 34,426,808 km (0.087 R)
• M70: 35,311,680 km (0.089 R)
• M71: 36,135,066 km (0.097 R)
• M72: 38,291,221 km (0.1 R)
• M73: 38,502,154 km (0.109 R)
• M74: 40,703,486 km (0.06 R)
• M75: 41,422,304 km (0.119 R)
• M76: 41,638,772 km (0.093 R)
• M77: 42,000,350 km (0.1 R)
• M78: 42,872,506 km (0.055 R)
• M79: 42,945,360 km (0.112 R)
• M80: 43,091,517 km (0.098 R)
• M81: 43,237,674 km (0.066 R)
• M82: 44,265,412 km (0.029 R)
• M83: 46,120,874 km (0.112 R)
• M84: 46,719,864 km (0.091 R)
• M85: 47,321,546 km (0.115 R)
• M86: 47,547,888 km (0.073 R)
• M87: 47,698,832 km (0.075 R)
• M88: 48,077,165 km (0.115 R)
• M89: 48,153,011 km (0.077 R)
• M90: 49,600,371 km (0.118 R)
• M91: 50,060,534 km (0.084 R)
• M92: 50,753,172 km (0.091 R)
• M93: 51,371,610 km (0.086 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 168 - 17,847 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit