🌌 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 - Terrestrial

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.97

Radius: 0.99

Gravity: 0.99 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 0.52 AU - 0.56 AU

Year: 260 Days

Day: 15.9 Hours

Environment

Temp: -124 °C

Axial Tilt: 35.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 2 - Gas Giant

Semi-Major Axis: 1.01 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 54.9

Radius: 11.9

Gravity: 0.39 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.9 AU - 1.12 AU

Year: 666 Days

Day: 13.7 Hours

Environment

Temp: -165 °C

Axial Tilt: 33 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 81,005,534 km

• M1: 150,795 km (0.096 R)
• M2: 231,278 km (0.101 R)
• M3: 336,595 km (0.047 R)
• M4: 440,566 km (0.117 R)
• M5: 566,078 km (0.047 R)
• M6: 649,853 km (0.092 R)
• M7: 735,722 km (0.117 R)
• M8: 837,748 km (0.064 R)
• M9: 1,079,648 km (0.099 R)
• M10: 1,244,804 km (0.101 R)
• M11: 1,386,772 km (0.055 R)
• M12: 1,476,082 km (0.111 R)
• M13: 1,630,766 km (0.109 R)
• M14: 1,775,577 km (0.114 R)
• M15: 1,853,518 km (0.111 R)
• M16: 2,074,174 km (0.09 R)
• M17: 2,152,564 km (0.029 R)
• M18: 2,278,226 km (0.091 R)
• M19: 2,559,171 km (0.083 R)
• M20: 2,724,177 km (0.111 R)
• M21: 3,154,720 km (0.119 R)
• M22: 3,307,908 km (0.043 R)

Planet 3 - Gas Giant

Semi-Major Axis: 1.1 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 561.1

Radius: 13.5

Gravity: 3.08 G

Time & Orbit

Eccentricity (e): 0.144

Orbit Range: 0.94 AU - 1.26 AU

Year: 757 Days

Day: 13.9 Hours

Environment

Temp: -172 °C

Axial Tilt: 35.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (50)

Outer Limit: 81,005,534 km

• M1: 179,517 km (0.086 R)
• M2: 335,698 km (0.077 R)
• M3: 439,070 km (0.065 R)
• M4: 540,348 km (0.058 R)
• M5: 642,672 km (0.101 R)
• M6: 803,191 km (0.054 R)
• M7: 891,753 km (0.084 R)
• M8: 989,740 km (0.108 R)
• M9: 1,161,777 km (0.106 R)
• M10: 1,357,002 km (0.107 R)
• M11: 1,471,744 km (0.1 R)
• M12: 1,576,762 km (0.096 R)
• M13: 1,663,977 km (0.087 R)
• M14: 1,752,988 km (0.103 R)
• M15: 1,964,818 km (0.065 R)
• M16: 2,215,395 km (0.104 R)
• M17: 2,360,056 km (0.104 R)
• M18: 2,445,327 km (0.102 R)
• M19: 2,756,191 km (0.07 R)
• M20: 3,029,357 km (0.084 R)
• M21: 3,113,880 km (0.044 R)
• M22: 3,199,300 km (0.078 R)
• M23: 3,320,175 km (0.057 R)
• M24: 3,425,043 km (0.063 R)
• M25: 3,522,282 km (0.029 R)
• M26: 3,611,293 km (0.101 R)
• M27: 3,782,881 km (0.114 R)
• M28: 3,975,563 km (0.065 R)
• M29: 4,105,863 km (0.11 R)
• M30: 4,190,386 km (0.085 R)
• M31: 4,304,080 km (0.058 R)
• M32: 4,583,080 km (0.114 R)
• M33: 4,957,823 km (0.062 R)
• M34: 5,058,054 km (0.116 R)
• M35: 5,291,277 km (0.104 R)
• M36: 5,424,718 km (0.058 R)
• M37: 5,632,210 km (0.077 R)
• M38: 5,779,115 km (0.11 R)
• M39: 5,874,110 km (0.075 R)
• M40: 5,969,703 km (0.048 R)
• M41: 6,130,222 km (0.093 R)
• M42: 6,281,315 km (0.036 R)
• M43: 6,368,232 km (0.106 R)
• M44: 6,532,341 km (0.032 R)
• M45: 6,820,167 km (0.048 R)
• M46: 7,214,058 km (0.084 R)
• M47: 7,373,829 km (0.079 R)
• M48: 7,673,623 km (0.113 R)
• M49: 7,790,010 km (0.1 R)
• M50: 7,883,509 km (0.054 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.12 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 160.7

Radius: 12.1

Gravity: 1.1 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 0.97 AU - 1.27 AU

Year: 778 Days

Day: 12.2 Hours

Environment

Temp: -156 °C

Axial Tilt: 4.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (39)

Outer Limit: 81,005,534 km

• M1: 151,393 km (0.068 R)
• M2: 245,341 km (0.061 R)
• M3: 331,210 km (0.069 R)
• M4: 424,708 km (0.11 R)
• M5: 520,601 km (0.116 R)
• M6: 643,570 km (0.086 R)
• M7: 789,278 km (0.063 R)
• M8: 913,744 km (0.082 R)
• M9: 1,089,222 km (0.063 R)
• M10: 1,314,367 km (0.117 R)
• M11: 1,450,052 km (0.091 R)
• M12: 1,560,156 km (0.084 R)
• M13: 1,673,252 km (0.12 R)
• M14: 1,751,941 km (0.104 R)
• M15: 1,837,361 km (0.091 R)
• M16: 1,957,189 km (0.114 R)
• M17: 2,141,942 km (0.118 R)
• M18: 2,233,646 km (0.111 R)
• M19: 2,379,653 km (0.028 R)
• M20: 2,498,883 km (0.111 R)
• M21: 2,595,673 km (0.118 R)
• M22: 2,912,970 km (0.104 R)
• M23: 3,021,578 km (0.065 R)
• M24: 3,236,251 km (0.1 R)
• M25: 3,462,742 km (0.104 R)
• M26: 3,591,695 km (0.117 R)
• M27: 3,667,093 km (0.05 R)
• M28: 3,805,471 km (0.077 R)
• M29: 3,910,488 km (0.117 R)
• M30: 4,130,547 km (0.103 R)
• M31: 4,253,067 km (0.066 R)
• M32: 4,362,124 km (0.091 R)
• M33: 4,523,840 km (0.104 R)
• M34: 4,709,939 km (0.092 R)
• M35: 4,853,254 km (0.111 R)
• M36: 4,997,915 km (0.114 R)
• M37: 5,074,659 km (0.118 R)
• M38: 5,159,481 km (0.063 R)
• M39: 5,260,460 km (0.108 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.43 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 925.5

Radius: 10.3

Gravity: 8.72 G

Time & Orbit

Eccentricity (e): 0.25

Orbit Range: 1.07 AU - 1.79 AU

Year: 1122 Days

Day: 12.3 Hours

Environment

Temp: -178 °C

Axial Tilt: 12.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (59)

Outer Limit: 81,005,534 km

• M1: 133,740 km (0.105 R)
• M2: 225,743 km (0.053 R)
• M3: 302,936 km (0.034 R)
• M4: 425,008 km (0.116 R)
• M5: 502,350 km (0.096 R)
• M6: 585,227 km (0.115 R)
• M7: 699,819 km (0.038 R)
• M8: 865,274 km (0.117 R)
• M9: 1,082,939 km (0.111 R)
• M10: 1,227,301 km (0.083 R)
• M11: 1,473,539 km (0.078 R)
• M12: 2,032,885 km (0.112 R)
• M13: 2,223,174 km (0.066 R)
• M14: 2,315,326 km (0.086 R)
• M15: 2,388,031 km (0.092 R)
• M16: 2,461,483 km (0.109 R)
• M17: 2,535,534 km (0.087 R)
• M18: 2,817,825 km (0.11 R)
• M19: 2,940,346 km (0.075 R)
• M20: 3,019,184 km (0.05 R)
• M21: 3,306,861 km (0.112 R)
• M22: 3,531,407 km (0.062 R)
• M23: 3,639,567 km (0.086 R)
• M24: 3,712,421 km (0.094 R)
• M25: 4,298,994 km (0.029 R)
• M26: 4,453,529 km (0.112 R)
• M27: 4,531,469 km (0.061 R)
• M28: 4,701,861 km (0.033 R)
• M29: 4,767,983 km (0.073 R)
• M30: 4,887,811 km (0.111 R)
• M31: 5,363,383 km (0.104 R)
• M32: 5,515,823 km (0.099 R)
• M33: 5,698,033 km (0.066 R)
• M34: 5,982,120 km (0.095 R)
• M35: 6,126,033 km (0.073 R)
• M36: 6,227,311 km (0.027 R)
• M37: 6,329,336 km (0.102 R)
• M38: 6,952,561 km (0.085 R)
• M39: 7,195,209 km (0.112 R)
• M40: 7,456,107 km (0.074 R)
• M41: 7,595,533 km (0.05 R)
• M42: 7,673,324 km (0.108 R)
• M43: 7,798,387 km (0.102 R)
• M44: 7,892,634 km (0.067 R)
• M45: 8,145,754 km (0.075 R)
• M46: 8,385,559 km (0.108 R)
• M47: 8,562,982 km (0.118 R)
• M48: 8,757,908 km (0.075 R)
• M49: 8,839,439 km (0.103 R)
• M50: 8,954,181 km (0.05 R)
• M51: 9,284,792 km (0.043 R)
• M52: 9,535,368 km (0.102 R)
• M53: 9,619,293 km (0.089 R)
• M54: 10,334,819 km (0.101 R)
• M55: 10,629,378 km (0.102 R)
• M56: 10,751,449 km (0.064 R)
• M57: 11,138,160 km (0.101 R)
• M58: 11,315,433 km (0.109 R)
• M59: 11,834,837 km (0.033 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.39 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 474

Radius: 13.4

Gravity: 2.64 G

Time & Orbit

Eccentricity (e): 0.196

Orbit Range: 3.53 AU - 5.25 AU

Year: 6034 Days

Day: 11.2 Hours

Environment

Temp: -207 °C

Axial Tilt: 23.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (77)

Outer Limit: 81,005,534 km

• M1: 264,938 km (0.11 R)
• M2: 425,756 km (0.078 R)
• M3: 513,420 km (0.052 R)
• M4: 1,133,054 km (0.102 R)
• M5: 1,280,109 km (0.12 R)
• M6: 1,418,188 km (0.103 R)
• M7: 1,545,346 km (0.118 R)
• M8: 1,777,671 km (0.07 R)
• M9: 1,880,894 km (0.08 R)
• M10: 1,968,409 km (0.069 R)
• M11: 2,408,675 km (0.092 R)
• M12: 2,679,747 km (0.1 R)
• M13: 2,819,172 km (0.099 R)
• M14: 3,379,865 km (0.106 R)
• M15: 3,795,298 km (0.057 R)
• M16: 4,112,146 km (0.111 R)
• M17: 4,603,575 km (0.043 R)
• M18: 4,892,748 km (0.093 R)
• M19: 4,990,585 km (0.045 R)
• M20: 5,113,704 km (0.119 R)
• M21: 5,616,652 km (0.033 R)
• M22: 6,109,128 km (0.106 R)
• M23: 6,241,074 km (0.099 R)
• M24: 7,163,644 km (0.092 R)
• M25: 7,555,889 km (0.085 R)
• M26: 8,186,594 km (0.111 R)
• M27: 8,626,412 km (0.106 R)
• M28: 9,590,271 km (0.081 R)
• M29: 11,816,287 km (0.063 R)
• M30: 11,948,083 km (0.109 R)
• M31: 12,783,587 km (0.09 R)
• M32: 12,986,890 km (0.082 R)
• M33: 13,225,349 km (0.112 R)
• M34: 13,465,454 km (0.036 R)
• M35: 13,845,582 km (0.118 R)
• M36: 13,984,708 km (0.112 R)
• M37: 14,545,700 km (0.077 R)
• M38: 14,900,247 km (0.069 R)
• M39: 15,149,926 km (0.103 R)
• M40: 15,653,772 km (0.08 R)
• M41: 16,163,152 km (0.117 R)
• M42: 16,272,957 km (0.101 R)
• M43: 16,640,968 km (0.119 R)
• M44: 17,011,821 km (0.107 R)
• M45: 18,944,775 km (0.098 R)
• M46: 19,138,056 km (0.027 R)
• M47: 19,448,621 km (0.116 R)
• M48: 19,760,981 km (0.087 R)
• M49: 20,035,493 km (0.05 R)
• M50: 20,271,858 km (0.101 R)
• M51: 20,429,983 km (0.031 R)
• M52: 20,747,429 km (0.062 R)
• M53: 20,946,694 km (0.098 R)
• M54: 21,146,557 km (0.05 R)
• M55: 21,306,926 km (0.111 R)
• M56: 21,628,860 km (0.067 R)
• M57: 21,750,034 km (0.082 R)
• M58: 21,952,440 km (0.076 R)
• M59: 22,236,826 km (0.048 R)
• M60: 22,686,218 km (0.074 R)
• M61: 22,809,337 km (0.032 R)
• M62: 23,345,346 km (0.066 R)
• M63: 23,594,127 km (0.113 R)
• M64: 23,885,544 km (0.084 R)
• M65: 24,682,302 km (0.042 R)
• M66: 25,445,401 km (0.105 R)
• M67: 25,658,728 km (0.065 R)
• M68: 26,087,026 km (0.07 R)
• M69: 26,820,804 km (0.077 R)
• M70: 26,994,487 km (0.103 R)
• M71: 27,648,978 km (0.073 R)
• M72: 27,780,474 km (0.108 R)
• M73: 28,220,442 km (0.072 R)
• M74: 28,574,091 km (0.119 R)
• M75: 29,958,170 km (0.117 R)
• M76: 30,048,228 km (0.118 R)
• M77: 30,138,436 km (0.082 R)

Planet 7 - Ice Giant

Semi-Major Axis: 9.22 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 81.5

Radius: 4.8

Gravity: 3.54 G

Time & Orbit

Eccentricity (e): 0.235

Orbit Range: 7.05 AU - 11.39 AU

Year: 18366 Days

Day: 22.3 Hours

Environment

Temp: -220 °C

Axial Tilt: 1.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (71)

Outer Limit: 81,005,534 km

• M1: 76,145 km (0.066 R)
• M2: 540,048 km (0.104 R)
• M3: 741,557 km (0.049 R)
• M4: 996,920 km (0.093 R)
• M5: 1,790,986 km (0.077 R)
• M6: 1,849,478 km (0.085 R)
• M7: 2,382,496 km (0.12 R)
• M8: 2,710,414 km (0.113 R)
• M9: 2,755,144 km (0.053 R)
• M10: 3,311,798 km (0.114 R)
• M11: 3,432,074 km (0.086 R)
• M12: 3,902,260 km (0.101 R)
• M13: 3,978,406 km (0.025 R)
• M14: 4,183,804 km (0.064 R)
• M15: 4,235,565 km (0.095 R)
• M16: 4,604,772 km (0.105 R)
• M17: 5,486,502 km (0.093 R)
• M18: 5,628,919 km (0.077 R)
• M19: 6,359,256 km (0.102 R)
• M20: 6,629,430 km (0.053 R)
• M21: 6,872,825 km (0.055 R)
• M22: 7,088,097 km (0.05 R)
• M23: 7,180,997 km (0.048 R)
• M24: 7,811,103 km (0.047 R)
• M25: 7,874,982 km (0.108 R)
• M26: 7,971,323 km (0.075 R)
• M27: 8,132,589 km (0.067 R)
• M28: 8,822,086 km (0.102 R)
• M29: 9,123,226 km (0.1 R)
• M30: 11,578,127 km (0.078 R)
• M31: 12,389,247 km (0.102 R)
• M32: 12,538,695 km (0.089 R)
• M33: 12,688,742 km (0.114 R)
• M34: 12,990,630 km (0.11 R)
• M35: 14,026,895 km (0.098 R)
• M36: 15,089,339 km (0.073 R)
• M37: 16,381,864 km (0.066 R)
• M38: 16,545,824 km (0.106 R)
• M39: 17,124,319 km (0.064 R)
• M40: 18,004,403 km (0.103 R)
• M41: 18,300,906 km (0.086 R)
• M42: 20,864,265 km (0.069 R)
• M43: 20,953,127 km (0.104 R)
• M44: 21,399,227 km (0.102 R)
• M45: 22,847,784 km (0.079 R)
• M46: 23,031,041 km (0.112 R)
• M47: 23,537,579 km (0.07 R)
• M48: 24,094,383 km (0.05 R)
• M49: 24,561,577 km (0.045 R)
• M50: 25,079,036 km (0.073 R)
• M51: 25,647,657 km (0.068 R)
• M52: 27,768,656 km (0.117 R)
• M53: 28,013,248 km (0.096 R)
• M54: 28,504,528 km (0.076 R)
• M55: 30,397,091 km (0.03 R)
• M56: 30,548,184 km (0.065 R)
• M57: 30,598,748 km (0.111 R)
• M58: 30,649,163 km (0.103 R)
• M59: 31,307,693 km (0.116 R)
• M60: 31,562,159 km (0.106 R)
• M61: 32,329,895 km (0.087 R)
• M62: 32,741,888 km (0.081 R)
• M63: 33,103,765 km (0.099 R)
• M64: 33,155,526 km (0.083 R)
• M65: 33,207,436 km (0.105 R)
• M66: 33,623,019 km (0.077 R)
• M67: 33,831,558 km (0.083 R)
• M68: 33,883,768 km (0.086 R)
• M69: 34,880,240 km (0.063 R)
• M70: 34,933,048 km (0.101 R)
• M71: 35,302,854 km (0.109 R)

Planet 8 - Ice Giant

Semi-Major Axis: 9.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 919.1

Radius: 5.1

Gravity: 35.34 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 9.2 AU - 9.64 AU

Year: 18966 Days

Day: 18.1 Hours

Environment

Temp: -235 °C

Axial Tilt: 48.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 81,005,534 km

• M1: 92,003 km (0.032 R)
• M2: 686,804 km (0.114 R)
• M3: 941,419 km (0.114 R)
• M4: 1,107,473 km (0.099 R)
• M5: 1,627,176 km (0.041 R)
• M6: 2,700,242 km (0.093 R)
• M7: 2,976,250 km (0.062 R)
• M8: 4,258,154 km (0.081 R)
• M9: 4,394,587 km (0.063 R)
• M10: 4,718,766 km (0.058 R)
• M11: 5,292,324 km (0.105 R)
• M12: 6,504,067 km (0.102 R)
• M13: 6,661,444 km (0.114 R)
• M14: 8,415,778 km (0.07 R)
• M15: 8,529,921 km (0.118 R)
• M16: 8,587,217 km (0.084 R)
• M17: 9,759,167 km (0.109 R)
• M18: 9,939,283 km (0.091 R)
• M19: 10,181,182 km (0.062 R)
• M20: 11,545,664 km (0.103 R)
• M21: 11,672,523 km (0.106 R)
• M22: 11,736,252 km (0.085 R)
• M23: 11,863,710 km (0.032 R)
• M24: 12,573,551 km (0.12 R)
• M25: 12,900,722 km (0.072 R)
• M26: 13,098,490 km (0.062 R)
• M27: 13,831,819 km (0.042 R)
• M28: 14,101,694 km (0.085 R)
• M29: 15,060,317 km (0.093 R)
• M30: 16,895,434 km (0.109 R)
• M31: 17,184,008 km (0.108 R)
• M32: 17,546,933 km (0.093 R)
• M33: 17,765,944 km (0.112 R)
• M34: 18,428,363 km (0.088 R)
• M35: 18,725,315 km (0.09 R)
• M36: 20,081,270 km (0.113 R)
• M37: 20,463,642 km (0.094 R)
• M38: 21,937,929 km (0.052 R)
• M39: 22,016,468 km (0.084 R)
• M40: 22,331,671 km (0.113 R)
• M41: 22,727,657 km (0.108 R)
• M42: 22,966,265 km (0.053 R)
• M43: 23,365,991 km (0.096 R)
• M44: 23,687,476 km (0.076 R)
• M45: 23,929,376 km (0.108 R)
• M46: 24,010,309 km (0.12 R)
• M47: 24,660,461 km (0.026 R)
• M48: 25,316,298 km (0.084 R)
• M49: 26,060,996 km (0.102 R)
• M50: 26,813,025 km (0.096 R)
• M51: 28,595,035 km (0.1 R)
• M52: 28,766,623 km (0.086 R)
• M53: 30,677,886 km (0.07 R)
• M54: 30,941,776 km (0.076 R)
• M55: 31,206,265 km (0.088 R)
• M56: 31,915,359 km (0.089 R)
• M57: 33,349,405 km (0.085 R)
• M58: 36,745,426 km (0.115 R)
• M59: 41,117,872 km (0.117 R)
• M60: 43,069,526 km (0.081 R)
• M61: 45,351,043 km (0.106 R)
• M62: 46,556,802 km (0.097 R)
• M63: 49,823,571 km (0.096 R)
• M64: 50,340,731 km (0.103 R)
• M65: 50,444,252 km (0.048 R)
• M66: 51,171,747 km (0.087 R)
• M67: 51,588,975 km (0.084 R)
• M68: 53,480,341 km (0.093 R)
• M69: 57,872,385 km (0.029 R)
• M70: 58,524,781 km (0.109 R)
• M71: 59,398,283 km (0.086 R)
• M72: 60,276,273 km (0.087 R)
• M73: 62,935,824 km (0.06 R)
• M74: 63,270,923 km (0.105 R)
• M75: 64,955,395 km (0.071 R)
• M76: 65,520,127 km (0.1 R)
• M77: 67,452,483 km (0.109 R)
• M78: 68,712,845 km (0.041 R)
• M79: 69,518,879 km (0.026 R)
• M80: 69,865,198 km (0.11 R)
• M81: 72,423,022 km (0.108 R)
• M82: 74,420,453 km (0.078 R)
• M83: 74,893,032 km (0.106 R)
• M84: 75,485,290 km (0.049 R)
• M85: 75,841,333 km (0.092 R)
• M86: 77,032,132 km (0.105 R)
• M87: 77,151,511 km (0.085 R)
• M88: 77,271,040 km (0.026 R)
• M89: 77,510,247 km (0.112 R)
• M90: 77,989,260 km (0.08 R)
• M91: 78,589,446 km (0.058 R)
• M92: 78,830,000 km (0.092 R)
• M93: 79,191,129 km (0.075 R)
• M94: 80,520,306 km (0.117 R)

Kuiper Belt

Range: 30 - 48 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 320 - 14,107 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit