🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.3 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.59 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 517.1

Radius: 8.9

Gravity: 6.53 G

Time & Orbit

Eccentricity (e): 0.205

Orbit Range: 0.47 AU - 0.71 AU

Year: 302 Days

Day: 8.8 Hours

Environment

Temp: -158 °C

Axial Tilt: 46.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (41)

Outer Limit: 63,335,646 km

• M1: 140,024 km (0.115 R)
• M2: 197,020 km (0.064 R)
• M3: 257,009 km (0.042 R)
• M4: 352,602 km (0.086 R)
• M5: 436,227 km (0.106 R)
• M6: 550,819 km (0.081 R)
• M7: 623,075 km (0.089 R)
• M8: 698,921 km (0.078 R)
• M9: 758,012 km (0.105 R)
• M10: 850,165 km (0.075 R)
• M11: 1,016,368 km (0.063 R)
• M12: 1,072,916 km (0.084 R)
• M13: 1,142,180 km (0.102 R)
• M14: 1,209,200 km (0.111 R)
• M15: 1,285,644 km (0.064 R)
• M16: 1,347,278 km (0.093 R)
• M17: 1,413,999 km (0.084 R)
• M18: 1,473,539 km (0.1 R)
• M19: 1,586,186 km (0.108 R)
• M20: 1,643,632 km (0.042 R)
• M21: 1,701,825 km (0.033 R)
• M22: 1,760,767 km (0.105 R)
• M23: 1,941,631 km (0.092 R)
• M24: 2,065,647 km (0.041 R)
• M25: 2,207,167 km (0.091 R)
• M26: 2,387,432 km (0.11 R)
• M27: 2,453,704 km (0.105 R)
• M28: 2,546,605 km (0.104 R)
• M29: 2,630,080 km (0.116 R)
• M30: 2,687,975 km (0.085 R)
• M31: 2,778,481 km (0.032 R)
• M32: 3,028,310 km (0.089 R)
• M33: 3,139,162 km (0.117 R)
• M34: 3,195,261 km (0.051 R)
• M35: 3,302,523 km (0.108 R)
• M36: 3,370,889 km (0.061 R)
• M37: 3,491,764 km (0.097 R)
• M38: 3,549,808 km (0.105 R)
• M39: 3,696,414 km (0.119 R)
• M40: 3,965,391 km (0.109 R)
• M41: 4,111,398 km (0.095 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.82 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 705.3

Radius: 14.9

Gravity: 3.18 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 0.8 AU - 0.84 AU

Year: 495 Days

Day: 6.2 Hours

Environment

Temp: -156 °C

Axial Tilt: 28.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (40)

Outer Limit: 63,335,646 km

• M1: 189,840 km (0.111 R)
• M2: 292,763 km (0.066 R)
• M3: 391,946 km (0.103 R)
• M4: 492,925 km (0.052 R)
• M5: 598,840 km (0.093 R)
• M6: 698,173 km (0.061 R)
• M7: 857,645 km (0.112 R)
• M8: 1,089,820 km (0.115 R)
• M9: 1,248,245 km (0.037 R)
• M10: 1,425,967 km (0.116 R)
• M11: 1,538,016 km (0.107 R)
• M12: 1,641,537 km (0.103 R)
• M13: 1,819,708 km (0.048 R)
• M14: 1,929,962 km (0.075 R)
• M15: 2,080,458 km (0.07 R)
• M16: 2,248,157 km (0.068 R)
• M17: 2,367,087 km (0.073 R)
• M18: 2,467,766 km (0.092 R)
• M19: 2,652,969 km (0.058 R)
• M20: 2,793,142 km (0.119 R)
• M21: 2,971,911 km (0.101 R)
• M22: 3,199,150 km (0.118 R)
• M23: 3,341,268 km (0.117 R)
• M24: 3,454,963 km (0.046 R)
• M25: 3,725,585 km (0.077 R)
• M26: 3,891,340 km (0.065 R)
• M27: 4,051,410 km (0.038 R)
• M28: 4,579,041 km (0.076 R)
• M29: 4,697,373 km (0.093 R)
• M30: 4,791,021 km (0.095 R)
• M31: 5,049,975 km (0.096 R)
• M32: 5,163,670 km (0.073 R)
• M33: 5,278,112 km (0.031 R)
• M34: 5,447,008 km (0.099 R)
• M35: 5,554,569 km (0.049 R)
• M36: 5,735,582 km (0.096 R)
• M37: 5,845,238 km (0.041 R)
• M38: 6,047,793 km (0.059 R)
• M39: 6,224,767 km (0.088 R)
• M40: 6,450,810 km (0.111 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.93 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 82.5

Radius: 13

Gravity: 0.49 G

Time & Orbit

Eccentricity (e): 0.008

Orbit Range: 0.92 AU - 0.94 AU

Year: 598 Days

Day: 13.7 Hours

Environment

Temp: -164 °C

Axial Tilt: 43.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (24)

Outer Limit: 63,335,646 km

• M1: 163,211 km (0.104 R)
• M2: 244,443 km (0.097 R)
• M3: 327,470 km (0.103 R)
• M4: 591,360 km (0.111 R)
• M5: 685,158 km (0.056 R)
• M6: 911,799 km (0.108 R)
• M7: 1,020,257 km (0.038 R)
• M8: 1,157,289 km (0.071 R)
• M9: 1,276,070 km (0.112 R)
• M10: 1,410,259 km (0.097 R)
• M11: 1,541,606 km (0.097 R)
• M12: 1,622,688 km (0.079 R)
• M13: 1,801,308 km (0.082 R)
• M14: 1,886,878 km (0.065 R)
• M15: 1,978,282 km (0.039 R)
• M16: 2,235,142 km (0.062 R)
• M17: 2,403,439 km (0.114 R)
• M18: 2,521,323 km (0.093 R)
• M19: 2,664,188 km (0.063 R)
• M20: 3,026,365 km (0.069 R)
• M21: 3,134,225 km (0.114 R)
• M22: 3,288,460 km (0.116 R)
• M23: 3,409,635 km (0.061 R)
• M24: 3,589,003 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 45.3

Radius: 13

Gravity: 0.27 G

Time & Orbit

Eccentricity (e): 0.03

Orbit Range: 1.02 AU - 1.08 AU

Year: 717 Days

Day: 5.5 Hours

Environment

Temp: -168 °C

Axial Tilt: 14.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (23)

Outer Limit: 63,335,646 km

• M1: 163,510 km (0.052 R)
• M2: 287,527 km (0.109 R)
• M3: 388,954 km (0.119 R)
• M4: 474,824 km (0.116 R)
• M5: 784,790 km (0.1 R)
• M6: 913,744 km (0.118 R)
• M7: 997,818 km (0.119 R)
• M8: 1,132,755 km (0.081 R)
• M9: 1,308,084 km (0.072 R)
• M10: 1,457,382 km (0.086 R)
• M11: 1,572,274 km (0.091 R)
• M12: 1,769,593 km (0.056 R)
• M13: 1,885,083 km (0.051 R)
• M14: 2,051,136 km (0.049 R)
• M15: 2,164,681 km (0.101 R)
• M16: 2,251,298 km (0.065 R)
• M17: 2,377,110 km (0.108 R)
• M18: 2,635,765 km (0.1 R)
• M19: 2,876,767 km (0.116 R)
• M20: 3,055,387 km (0.043 R)
• M21: 3,139,012 km (0.079 R)
• M22: 3,237,597 km (0.058 R)
• M23: 3,327,805 km (0.101 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.27 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 772.3

Radius: 14.9

Gravity: 3.48 G

Time & Orbit

Eccentricity (e): 0.006

Orbit Range: 2.26 AU - 2.28 AU

Year: 2281 Days

Day: 7.6 Hours

Environment

Temp: -215 °C

Axial Tilt: 3.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (57)

Outer Limit: 63,335,646 km

• M1: 201,060 km (0.112 R)
• M2: 327,320 km (0.12 R)
• M3: 490,831 km (0.095 R)
• M4: 666,608 km (0.098 R)
• M5: 1,049,429 km (0.078 R)
• M6: 1,151,156 km (0.107 R)
• M7: 1,277,865 km (0.114 R)
• M8: 1,546,692 km (0.113 R)
• M9: 1,736,382 km (0.088 R)
• M10: 2,166,177 km (0.106 R)
• M11: 2,312,633 km (0.073 R)
• M12: 2,462,381 km (0.112 R)
• M13: 2,786,410 km (0.104 R)
• M14: 3,538,438 km (0.086 R)
• M15: 3,792,306 km (0.09 R)
• M16: 4,019,396 km (0.039 R)
• M17: 4,167,797 km (0.075 R)
• M18: 4,402,366 km (0.039 R)
• M19: 4,675,831 km (0.086 R)
• M20: 4,814,658 km (0.07 R)
• M21: 5,185,960 km (0.118 R)
• M22: 5,347,825 km (0.067 R)
• M23: 5,603,188 km (0.053 R)
• M24: 5,956,389 km (0.064 R)
• M25: 6,202,178 km (0.06 R)
• M26: 6,625,839 km (0.115 R)
• M27: 6,723,527 km (0.057 R)
• M28: 6,979,638 km (0.059 R)
• M29: 7,279,133 km (0.097 R)
• M30: 8,098,780 km (0.116 R)
• M31: 8,287,273 km (0.096 R)
• M32: 8,392,740 km (0.083 R)
• M33: 8,732,776 km (0.078 R)
• M34: 8,990,982 km (0.112 R)
• M35: 9,869,720 km (0.066 R)
• M36: 10,048,788 km (0.105 R)
• M37: 10,387,478 km (0.12 R)
• M38: 10,501,172 km (0.069 R)
• M39: 11,262,326 km (0.097 R)
• M40: 11,543,420 km (0.095 R)
• M41: 12,667,200 km (0.119 R)
• M42: 13,328,572 km (0.072 R)
• M43: 14,227,954 km (0.077 R)
• M44: 14,455,941 km (0.1 R)
• M45: 14,633,963 km (0.089 R)
• M46: 14,864,044 km (0.063 R)
• M47: 14,966,818 km (0.104 R)
• M48: 15,276,187 km (0.032 R)
• M49: 15,405,738 km (0.1 R)
• M50: 16,455,167 km (0.115 R)
• M51: 17,042,189 km (0.096 R)
• M52: 17,203,456 km (0.067 R)
• M53: 17,527,635 km (0.066 R)
• M54: 17,636,093 km (0.115 R)
• M55: 18,127,223 km (0.107 R)
• M56: 18,236,878 km (0.066 R)
• M57: 18,622,841 km (0.107 R)

Planet 6 - Gas Giant

Semi-Major Axis: 5.21 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 203.5

Radius: 8.4

Gravity: 2.88 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 5.03 AU - 5.39 AU

Year: 7930 Days

Day: 9.7 Hours

Environment

Temp: -216 °C

Axial Tilt: 43.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (75)

Outer Limit: 63,335,646 km

• M1: 140,323 km (0.11 R)
• M2: 283,189 km (0.12 R)
• M3: 400,623 km (0.063 R)
• M4: 536,159 km (0.051 R)
• M5: 610,060 km (0.107 R)
• M6: 699,071 km (0.057 R)
• M7: 792,869 km (0.116 R)
• M8: 866,172 km (0.083 R)
• M9: 1,473,539 km (0.03 R)
• M10: 1,565,093 km (0.076 R)
• M11: 1,690,306 km (0.078 R)
• M12: 2,051,735 km (0.059 R)
• M13: 2,119,951 km (0.095 R)
• M14: 2,294,233 km (0.047 R)
• M15: 2,455,051 km (0.042 R)
• M16: 2,769,057 km (0.102 R)
• M17: 3,273,949 km (0.104 R)
• M18: 4,702,459 km (0.112 R)
• M19: 5,045,787 km (0.114 R)
• M20: 5,115,499 km (0.095 R)
• M21: 5,326,432 km (0.103 R)
• M22: 5,564,143 km (0.081 R)
• M23: 6,148,772 km (0.094 R)
• M24: 6,600,108 km (0.096 R)
• M25: 6,804,160 km (0.072 R)
• M26: 6,881,203 km (0.098 R)
• M27: 7,088,097 km (0.069 R)
• M28: 7,192,366 km (0.062 R)
• M29: 7,481,539 km (0.109 R)
• M30: 7,561,125 km (0.091 R)
• M31: 7,614,382 km (0.054 R)
• M32: 8,071,553 km (0.059 R)
• M33: 8,207,837 km (0.104 R)
• M34: 8,482,498 km (0.052 R)
• M35: 8,537,700 km (0.111 R)
• M36: 8,984,549 km (0.054 R)
• M37: 9,438,878 km (0.115 R)
• M38: 10,340,354 km (0.102 R)
• M39: 10,756,536 km (0.047 R)
• M40: 11,238,839 km (0.056 R)
• M41: 12,068,808 km (0.101 R)
• M42: 12,255,806 km (0.101 R)
• M43: 12,381,169 km (0.108 R)
• M44: 12,759,502 km (0.106 R)
• M45: 12,822,931 km (0.061 R)
• M46: 13,205,752 km (0.097 R)
• M47: 13,334,257 km (0.061 R)
• M48: 13,430,747 km (0.114 R)
• M49: 13,787,089 km (0.116 R)
• M50: 13,950,001 km (0.04 R)
• M51: 15,512,701 km (0.1 R)
• M52: 16,504,385 km (0.104 R)
• M53: 16,746,883 km (0.092 R)
• M54: 17,235,320 km (0.061 R)
• M55: 17,375,793 km (0.105 R)
• M56: 17,622,330 km (0.099 R)
• M57: 17,870,214 km (0.109 R)
• M58: 18,226,257 km (0.117 R)
• M59: 18,909,171 km (0.117 R)
• M60: 19,090,184 km (0.11 R)
• M61: 19,308,298 km (0.069 R)
• M62: 20,596,934 km (0.064 R)
• M63: 21,307,973 km (0.089 R)
• M64: 22,179,530 km (0.084 R)
• M65: 22,638,945 km (0.088 R)
• M66: 22,754,285 km (0.117 R)
• M67: 23,101,502 km (0.093 R)
• M68: 23,801,021 km (0.089 R)
• M69: 23,957,501 km (0.083 R)
• M70: 24,389,390 km (0.052 R)
• M71: 24,705,041 km (0.084 R)
• M72: 24,903,109 km (0.091 R)
• M73: 25,540,246 km (0.095 R)
• M74: 25,700,465 km (0.07 R)
• M75: 26,021,652 km (0.065 R)

Planet 7 - Gas Giant

Semi-Major Axis: 5.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 123.2

Radius: 14.1

Gravity: 0.62 G

Time & Orbit

Eccentricity (e): 0.149

Orbit Range: 4.73 AU - 6.39 AU

Year: 8743 Days

Day: 6 Hours

Environment

Temp: -229 °C

Axial Tilt: 37.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (60)

Outer Limit: 63,335,646 km

• M1: 239,656 km (0.092 R)
• M2: 425,606 km (0.061 R)
• M3: 649,853 km (0.101 R)
• M4: 1,071,420 km (0.071 R)
• M5: 1,366,726 km (0.08 R)
• M6: 1,559,707 km (0.073 R)
• M7: 1,762,113 km (0.081 R)
• M8: 1,866,682 km (0.061 R)
• M9: 2,145,682 km (0.07 R)
• M10: 2,488,710 km (0.068 R)
• M11: 2,589,988 km (0.118 R)
• M12: 2,955,755 km (0.047 R)
• M13: 3,081,417 km (0.106 R)
• M14: 3,227,275 km (0.084 R)
• M15: 3,526,171 km (0.102 R)
• M16: 3,679,060 km (0.117 R)
• M17: 3,834,193 km (0.083 R)
• M18: 4,497,211 km (0.093 R)
• M19: 5,726,008 km (0.113 R)
• M20: 5,838,506 km (0.079 R)
• M21: 6,553,135 km (0.074 R)
• M22: 6,765,863 km (0.075 R)
• M23: 7,149,731 km (0.071 R)
• M24: 7,442,344 km (0.072 R)
• M25: 8,191,082 km (0.106 R)
• M26: 8,523,189 km (0.113 R)
• M27: 8,964,054 km (0.086 R)
• M28: 9,147,760 km (0.112 R)
• M29: 9,733,436 km (0.113 R)
• M30: 10,139,744 km (0.042 R)
• M31: 10,997,089 km (0.081 R)
• M32: 11,109,437 km (0.099 R)
• M33: 11,335,180 km (0.073 R)
• M34: 11,505,572 km (0.107 R)
• M35: 11,935,367 km (0.119 R)
• M36: 12,341,076 km (0.115 R)
• M37: 12,516,405 km (0.114 R)
• M38: 13,465,454 km (0.105 R)
• M39: 13,706,456 km (0.098 R)
• M40: 13,918,436 km (0.09 R)
• M41: 14,100,946 km (0.03 R)
• M42: 14,622,593 km (0.102 R)
• M43: 15,590,043 km (0.102 R)
• M44: 16,449,483 km (0.118 R)
• M45: 16,933,731 km (0.058 R)
• M46: 17,982,262 km (0.109 R)
• M47: 18,114,806 km (0.115 R)
• M48: 19,186,974 km (0.066 R)
• M49: 19,628,437 km (0.1 R)
• M50: 20,107,599 km (0.096 R)
• M51: 20,383,159 km (0.077 R)
• M52: 20,556,094 km (0.068 R)
• M53: 20,833,747 km (0.09 R)
• M54: 21,042,736 km (0.11 R)
• M55: 21,638,734 km (0.084 R)
• M56: 22,204,812 km (0.07 R)
• M57: 23,207,118 km (0.091 R)
• M58: 23,750,158 km (0.081 R)
• M59: 24,114,578 km (0.102 R)
• M60: 24,443,993 km (0.093 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 944.2

Radius: 4

Gravity: 59.01 G

Time & Orbit

Eccentricity (e): 0.095

Orbit Range: 6.53 AU - 7.91 AU

Year: 12937 Days

Day: 23.4 Hours

Environment

Temp: -227 °C

Axial Tilt: 18.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (92)

Outer Limit: 63,335,646 km

• M1: 55,351 km (0.066 R)
• M2: 94,995 km (0.081 R)
• M3: 154,535 km (0.08 R)
• M4: 537,206 km (0.089 R)
• M5: 736,171 km (0.066 R)
• M6: 800,199 km (0.067 R)
• M7: 1,050,476 km (0.099 R)
• M8: 1,122,732 km (0.109 R)
• M9: 1,272,479 km (0.065 R)
• M10: 2,358,560 km (0.11 R)
• M11: 3,223,834 km (0.119 R)
• M12: 4,024,332 km (0.116 R)
• M13: 4,138,027 km (0.106 R)
• M14: 5,208,549 km (0.084 R)
• M15: 5,499,218 km (0.119 R)
• M16: 6,096,562 km (0.086 R)
• M17: 7,121,756 km (0.088 R)
• M18: 7,490,665 km (0.106 R)
• M19: 8,439,863 km (0.101 R)
• M20: 9,226,149 km (0.095 R)
• M21: 10,138,248 km (0.1 R)
• M22: 10,657,352 km (0.046 R)
• M23: 11,078,770 km (0.106 R)
• M24: 11,184,984 km (0.066 R)
• M25: 11,559,427 km (0.099 R)
• M26: 11,938,060 km (0.113 R)
• M27: 13,548,930 km (0.071 R)
• M28: 13,776,468 km (0.09 R)
• M29: 13,833,614 km (0.091 R)
• M30: 14,120,094 km (0.113 R)
• M31: 14,408,669 km (0.087 R)
• M32: 14,815,874 km (0.118 R)
• M33: 15,285,761 km (0.104 R)
• M34: 16,907,851 km (0.107 R)
• M35: 17,091,407 km (0.066 R)
• M36: 17,337,196 km (0.116 R)
• M37: 17,398,831 km (0.112 R)
• M38: 17,708,050 km (0.063 R)
• M39: 17,956,681 km (0.099 R)
• M40: 18,520,516 km (0.112 R)
• M41: 18,899,597 km (0.092 R)
• M42: 19,026,605 km (0.106 R)
• M43: 19,345,099 km (0.094 R)
• M44: 19,537,183 km (0.09 R)
• M45: 19,601,360 km (0.032 R)
• M46: 21,756,766 km (0.116 R)
• M47: 22,023,200 km (0.11 R)
• M48: 22,424,721 km (0.076 R)
• M49: 23,234,943 km (0.12 R)
• M50: 23,303,010 km (0.094 R)
• M51: 24,192,369 km (0.12 R)
• M52: 24,676,019 km (0.057 R)
• M53: 25,302,385 km (0.093 R)
• M54: 25,722,755 km (0.107 R)
• M55: 25,933,988 km (0.025 R)
• M56: 26,926,719 km (0.063 R)
• M57: 27,284,258 km (0.085 R)
• M58: 27,715,399 km (0.102 R)
• M59: 30,795,769 km (0.098 R)
• M60: 31,846,544 km (0.051 R)
• M61: 33,521,143 km (0.048 R)
• M62: 33,674,780 km (0.094 R)
• M63: 33,751,673 km (0.067 R)
• M64: 34,291,722 km (0.052 R)
• M65: 34,912,403 km (0.098 R)
• M66: 34,990,344 km (0.102 R)
• M67: 36,322,513 km (0.088 R)
• M68: 37,432,080 km (0.042 R)
• M69: 37,751,023 km (0.066 R)
• M70: 38,472,234 km (0.054 R)
• M71: 39,359,798 km (0.065 R)
• M72: 39,440,880 km (0.032 R)
• M73: 40,335,775 km (0.084 R)
• M74: 43,394,752 km (0.062 R)
• M75: 44,740,385 km (0.1 R)
• M76: 44,824,908 km (0.088 R)
• M77: 45,163,747 km (0.08 R)
• M78: 45,418,362 km (0.09 R)
• M79: 46,441,761 km (0.102 R)
• M80: 48,945,880 km (0.115 R)
• M81: 51,228,145 km (0.115 R)
• M82: 52,917,704 km (0.114 R)
• M83: 54,444,799 km (0.083 R)
• M84: 55,440,672 km (0.091 R)
• M85: 56,808,295 km (0.077 R)
• M86: 58,094,837 km (0.092 R)
• M87: 58,556,496 km (0.066 R)
• M88: 59,762,853 km (0.089 R)
• M89: 60,415,848 km (0.111 R)
• M90: 61,540,525 km (0.038 R)
• M91: 62,388,745 km (0.056 R)
• M92: 62,861,624 km (0.107 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: 547 - 13,812 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit