🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.74 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.26

Radius: 1.39

Gravity: 1.17 G

Time & Orbit

Eccentricity (e): 0.239

Orbit Range: 0.56 AU - 0.92 AU

Year: 239 Days

Day: 20.5 Hours

Environment

Temp: 143 °C

Axial Tilt: 45.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 39,931,241 km

• M1: 61,335 km (0.06 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.92 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.2

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.091

Orbit Range: 0.84 AU - 1 AU

Year: 331 Days

Day: 18.6 Hours

Environment

Temp: 41 °C

Axial Tilt: 22 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Satellites (1)

Outer Limit: 39,931,241 km

• M1: 534,663 km (0.068 R)

Planet 3 - Terrestrial

Semi-Major Axis: 2.68 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.38

Radius: 1.81

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.118

Orbit Range: 2.36 AU - 3 AU

Year: 1644 Days

Day: 34 Hours

Environment

Temp: -104 °C

Axial Tilt: 7.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 39,931,241 km

• M1: 1,835,117 km (0.095 R)

Planet 4 - Gas Giant

Semi-Major Axis: 6.08 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 38

Radius: 14.8

Gravity: 0.17 G

Time & Orbit

Eccentricity (e): 0.031

Orbit Range: 5.89 AU - 6.27 AU

Year: 5618 Days

Day: 11.3 Hours

Environment

Temp: -150 °C

Axial Tilt: 21.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (46)

Outer Limit: 39,931,241 km

• M1: 226,790 km (0.078 R)
• M2: 416,032 km (0.118 R)
• M3: 554,559 km (0.075 R)
• M4: 758,760 km (0.079 R)
• M5: 875,148 km (0.049 R)
• M6: 1,223,711 km (0.057 R)
• M7: 1,492,837 km (0.092 R)
• M8: 1,698,534 km (0.111 R)
• M9: 1,942,828 km (0.092 R)
• M10: 2,059,663 km (0.077 R)
• M11: 2,158,847 km (0.071 R)
• M12: 2,383,094 km (0.118 R)
• M13: 2,658,205 km (0.09 R)
• M14: 2,766,813 km (0.104 R)
• M15: 2,865,996 km (0.096 R)
• M16: 3,090,692 km (0.1 R)
• M17: 3,193,615 km (0.118 R)
• M18: 3,498,047 km (0.049 R)
• M19: 3,836,587 km (0.067 R)
• M20: 3,960,005 km (0.084 R)
• M21: 4,211,180 km (0.065 R)
• M22: 4,415,980 km (0.104 R)
• M23: 4,795,509 km (0.088 R)
• M24: 5,023,048 km (0.097 R)
• M25: 5,117,893 km (0.103 R)
• M26: 5,419,482 km (0.047 R)
• M27: 5,684,869 km (0.078 R)
• M28: 5,783,753 km (0.092 R)
• M29: 5,926,020 km (0.093 R)
• M30: 6,184,974 km (0.108 R)
• M31: 6,969,466 km (0.054 R)
• M32: 7,090,640 km (0.112 R)
• M33: 7,442,943 km (0.119 R)
• M34: 7,613,484 km (0.093 R)
• M35: 8,037,594 km (0.094 R)
• M36: 8,469,633 km (0.076 R)
• M37: 8,794,410 km (0.072 R)
• M38: 8,991,430 km (0.031 R)
• M39: 9,123,525 km (0.074 R)
• M40: 9,540,604 km (0.083 R)
• M41: 10,203,622 km (0.103 R)
• M42: 10,497,432 km (0.12 R)
• M43: 10,654,061 km (0.119 R)
• M44: 11,270,704 km (0.029 R)
• M45: 12,007,922 km (0.119 R)
• M46: 12,135,379 km (0.1 R)

Planet 5 - Gas Giant

Semi-Major Axis: 6.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 655.7

Radius: 8.1

Gravity: 9.99 G

Time & Orbit

Eccentricity (e): 0.175

Orbit Range: 5.4 AU - 7.68 AU

Year: 6268 Days

Day: 6.6 Hours

Environment

Temp: -153 °C

Axial Tilt: 18.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (83)

Outer Limit: 39,931,241 km

• M1: 101,876 km (0.054 R)
• M2: 336,296 km (0.09 R)
• M3: 486,343 km (0.109 R)
• M4: 672,442 km (0.083 R)
• M5: 852,259 km (0.067 R)
• M6: 1,063,342 km (0.116 R)
• M7: 1,257,669 km (0.087 R)
• M8: 1,393,654 km (0.105 R)
• M9: 1,498,971 km (0.078 R)
• M10: 1,570,778 km (0.118 R)
• M11: 2,647,733 km (0.08 R)
• M12: 2,845,651 km (0.109 R)
• M13: 3,163,097 km (0.066 R)
• M14: 3,444,192 km (0.06 R)
• M15: 3,856,334 km (0.099 R)
• M16: 3,955,517 km (0.091 R)
• M17: 4,055,598 km (0.12 R)
• M18: 4,106,013 km (0.101 R)
• M19: 4,309,615 km (0.066 R)
• M20: 4,700,365 km (0.085 R)
• M21: 4,806,580 km (0.07 R)
• M22: 4,886,764 km (0.093 R)
• M23: 5,571,773 km (0.088 R)
• M24: 6,315,873 km (0.094 R)
• M25: 6,610,431 km (0.108 R)
• M26: 7,366,349 km (0.083 R)
• M27: 7,614,083 km (0.082 R)
• M28: 7,801,679 km (0.079 R)
• M29: 8,181,358 km (0.092 R)
• M30: 8,470,082 km (0.096 R)
• M31: 9,190,096 km (0.098 R)
• M32: 9,256,518 km (0.091 R)
• M33: 10,134,508 km (0.101 R)
• M34: 10,271,988 km (0.111 R)
• M35: 11,180,496 km (0.117 R)
• M36: 11,608,346 km (0.102 R)
• M37: 11,680,153 km (0.06 R)
• M38: 11,932,824 km (0.092 R)
• M39: 12,114,436 km (0.074 R)
• M40: 12,260,293 km (0.067 R)
• M41: 12,333,447 km (0.119 R)
• M42: 12,480,352 km (0.076 R)
• M43: 12,998,709 km (0.103 R)
• M44: 13,073,208 km (0.069 R)
• M45: 13,373,152 km (0.091 R)
• M46: 13,524,096 km (0.09 R)
• M47: 13,713,338 km (0.114 R)
• M48: 13,979,921 km (0.071 R)
• M49: 14,595,516 km (0.099 R)
• M50: 14,867,635 km (0.065 R)
• M51: 15,813,393 km (0.116 R)
• M52: 15,933,071 km (0.073 R)
• M53: 16,374,085 km (0.074 R)
• M54: 16,697,366 km (0.099 R)
• M55: 17,186,402 km (0.091 R)
• M56: 17,391,500 km (0.108 R)
• M57: 18,094,910 km (0.095 R)
• M58: 18,178,236 km (0.115 R)
• M59: 18,429,111 km (0.113 R)
• M60: 19,188,620 km (0.085 R)
• M61: 20,087,703 km (0.09 R)
• M62: 20,174,021 km (0.049 R)
• M63: 20,651,088 km (0.11 R)
• M64: 21,000,399 km (0.054 R)
• M65: 21,439,768 km (0.117 R)
• M66: 21,793,418 km (0.097 R)
• M67: 22,506,551 km (0.08 R)
• M68: 23,091,628 km (0.076 R)
• M69: 23,317,970 km (0.108 R)
• M70: 24,138,963 km (0.101 R)
• M71: 25,715,425 km (0.104 R)
• M72: 26,753,186 km (0.03 R)
• M73: 28,093,583 km (0.078 R)
• M74: 28,820,628 km (0.119 R)
• M75: 30,046,134 km (0.1 R)
• M76: 30,839,451 km (0.093 R)
• M77: 31,188,613 km (0.09 R)
• M78: 31,388,775 km (0.1 R)
• M79: 31,539,121 km (0.071 R)
• M80: 31,941,389 km (0.105 R)
• M81: 32,042,218 km (0.068 R)
• M82: 32,143,047 km (0.09 R)
• M83: 33,567,069 km (0.09 R)

Planet 6 - Gas Giant

Semi-Major Axis: 7.23 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 968.1

Radius: 15

Gravity: 4.3 G

Time & Orbit

Eccentricity (e): 0.202

Orbit Range: 5.77 AU - 8.69 AU

Year: 7285 Days

Day: 9.8 Hours

Environment

Temp: -172 °C

Axial Tilt: 31 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (79)

Outer Limit: 39,931,241 km

• M1: 300,093 km (0.118 R)
• M2: 434,731 km (0.112 R)
• M3: 586,723 km (0.068 R)
• M4: 839,842 km (0.045 R)
• M5: 938,577 km (0.114 R)
• M6: 1,077,254 km (0.105 R)
• M7: 1,299,407 km (0.098 R)
• M8: 1,640,939 km (0.109 R)
• M9: 1,768,546 km (0.115 R)
• M10: 1,877,752 km (0.036 R)
• M11: 2,057,270 km (0.049 R)
• M12: 2,219,135 km (0.037 R)
• M13: 2,731,059 km (0.119 R)
• M14: 2,884,247 km (0.056 R)
• M15: 3,014,098 km (0.113 R)
• M16: 3,279,933 km (0.094 R)
• M17: 3,470,671 km (0.069 R)
• M18: 4,182,158 km (0.111 R)
• M19: 5,126,719 km (0.062 R)
• M20: 6,749,706 km (0.052 R)
• M21: 6,958,844 km (0.112 R)
• M22: 7,312,045 km (0.097 R)
• M23: 7,635,176 km (0.118 R)
• M24: 8,036,398 km (0.095 R)
• M25: 8,184,051 km (0.118 R)
• M26: 8,594,697 km (0.091 R)
• M27: 9,204,308 km (0.106 R)
• M28: 9,320,097 km (0.069 R)
• M29: 9,592,365 km (0.084 R)
• M30: 9,749,144 km (0.071 R)
• M31: 12,371,445 km (0.114 R)
• M32: 13,016,062 km (0.102 R)
• M33: 13,408,158 km (0.057 R)
• M34: 13,848,275 km (0.114 R)
• M35: 14,517,576 km (0.106 R)
• M36: 16,120,068 km (0.09 R)
• M37: 16,776,803 km (0.055 R)
• M38: 17,730,040 km (0.094 R)
• M39: 18,067,982 km (0.091 R)
• M40: 18,700,931 km (0.075 R)
• M41: 19,044,856 km (0.106 R)
• M42: 19,143,591 km (0.03 R)
• M43: 19,938,853 km (0.068 R)
• M44: 20,290,258 km (0.092 R)
• M45: 20,948,339 km (0.07 R)
• M46: 21,922,521 km (0.116 R)
• M47: 22,754,584 km (0.087 R)
• M48: 24,021,828 km (0.093 R)
• M49: 25,257,805 km (0.108 R)
• M50: 25,856,197 km (0.099 R)
• M51: 26,184,564 km (0.091 R)
• M52: 26,404,323 km (0.094 R)
• M53: 26,624,681 km (0.056 R)
• M54: 27,011,691 km (0.106 R)
• M55: 27,903,294 km (0.056 R)
• M56: 28,691,376 km (0.069 R)
• M57: 29,429,791 km (0.06 R)
• M58: 30,232,084 km (0.084 R)
• M59: 30,577,954 km (0.041 R)
• M60: 30,809,382 km (0.034 R)
• M61: 31,099,453 km (0.096 R)
• M62: 31,332,227 km (0.051 R)
• M63: 31,448,764 km (0.064 R)
• M64: 31,623,943 km (0.118 R)
• M65: 32,977,504 km (0.117 R)
• M66: 33,452,627 km (0.084 R)
• M67: 34,229,788 km (0.08 R)
• M68: 34,831,620 km (0.103 R)
• M69: 35,194,395 km (0.045 R)
• M70: 35,436,893 km (0.081 R)
• M71: 35,923,685 km (0.07 R)
• M72: 37,212,022 km (0.103 R)
• M73: 37,459,157 km (0.035 R)
• M74: 37,768,675 km (0.093 R)
• M75: 38,827,978 km (0.111 R)
• M76: 38,953,191 km (0.066 R)
• M77: 39,329,729 km (0.109 R)
• M78: 39,455,541 km (0.108 R)
• M79: 42,128,107 km (0.044 R)

Planet 7 - Gas Giant

Semi-Major Axis: 7.63 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 191.1

Radius: 12.2

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 6.16 AU - 9.1 AU

Year: 7898 Days

Day: 8.9 Hours

Environment

Temp: -173 °C

Axial Tilt: 17.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (54)

Outer Limit: 39,931,241 km

• M1: 152,590 km (0.116 R)
• M2: 440,267 km (0.112 R)
• M3: 533,017 km (0.111 R)
• M4: 870,211 km (0.103 R)
• M5: 968,048 km (0.071 R)
• M6: 1,070,074 km (0.072 R)
• M7: 1,806,993 km (0.11 R)
• M8: 2,083,001 km (0.064 R)
• M9: 2,234,843 km (0.098 R)
• M10: 2,460,735 km (0.076 R)
• M11: 2,639,654 km (0.11 R)
• M12: 2,767,561 km (0.089 R)
• M13: 2,878,861 km (0.075 R)
• M14: 2,991,658 km (0.085 R)
• M15: 3,086,802 km (0.114 R)
• M16: 3,182,994 km (0.045 R)
• M17: 3,558,036 km (0.11 R)
• M18: 4,264,287 km (0.097 R)
• M19: 4,589,812 km (0.118 R)
• M20: 5,241,909 km (0.047 R)
• M21: 5,590,772 km (0.113 R)
• M22: 7,111,883 km (0.074 R)
• M23: 7,420,354 km (0.114 R)
• M24: 8,616,389 km (0.066 R)
• M25: 8,807,874 km (0.064 R)
• M26: 9,559,454 km (0.099 R)
• M27: 10,710,759 km (0.099 R)
• M28: 11,723,536 km (0.095 R)
• M29: 11,935,816 km (0.058 R)
• M30: 12,580,433 km (0.055 R)
• M31: 12,953,829 km (0.112 R)
• M32: 13,079,192 km (0.119 R)
• M33: 13,616,249 km (0.107 R)
• M34: 13,967,654 km (0.109 R)
• M35: 14,842,802 km (0.108 R)
• M36: 15,105,495 km (0.068 R)
• M37: 16,273,107 km (0.067 R)
• M38: 16,611,946 km (0.113 R)
• M39: 16,850,555 km (0.093 R)
• M40: 17,607,969 km (0.081 R)
• M41: 17,990,939 km (0.105 R)
• M42: 18,165,819 km (0.104 R)
• M43: 18,977,836 km (0.091 R)
• M44: 19,084,649 km (0.108 R)
• M45: 20,163,699 km (0.106 R)
• M46: 20,309,108 km (0.12 R)
• M47: 21,262,345 km (0.117 R)
• M48: 21,744,499 km (0.075 R)
• M49: 22,267,942 km (0.086 R)
• M50: 22,531,085 km (0.074 R)
• M51: 24,247,720 km (0.103 R)
• M52: 24,518,493 km (0.083 R)
• M53: 24,907,148 km (0.049 R)
• M54: 25,651,098 km (0.096 R)

Planet 8 - Gas Giant

Semi-Major Axis: 10.05 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 391

Radius: 11

Gravity: 3.23 G

Time & Orbit

Eccentricity (e): 0.036

Orbit Range: 9.69 AU - 10.41 AU

Year: 11939 Days

Day: 13 Hours

Environment

Temp: -169 °C

Axial Tilt: 32.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (84)

Outer Limit: 39,931,241 km

• M1: 138,228 km (0.074 R)
• M2: 218,712 km (0.11 R)
• M3: 357,090 km (0.119 R)
• M4: 743,950 km (0.096 R)
• M5: 1,203,515 km (0.094 R)
• M6: 1,463,815 km (0.055 R)
• M7: 1,633,010 km (0.117 R)
• M8: 2,037,822 km (0.119 R)
• M9: 2,349,584 km (0.04 R)
• M10: 2,574,579 km (0.109 R)
• M11: 3,430,728 km (0.082 R)
• M12: 4,007,877 km (0.119 R)
• M13: 4,399,374 km (0.114 R)
• M14: 4,677,626 km (0.069 R)
• M15: 5,382,083 km (0.088 R)
• M16: 5,613,211 km (0.098 R)
• M17: 6,360,901 km (0.112 R)
• M18: 6,888,683 km (0.103 R)
• M19: 7,614,382 km (0.103 R)
• M20: 7,874,084 km (0.069 R)
• M21: 8,212,474 km (0.082 R)
• M22: 8,440,611 km (0.103 R)
• M23: 9,295,264 km (0.108 R)
• M24: 9,533,124 km (0.108 R)
• M25: 9,772,930 km (0.072 R)
• M26: 10,299,664 km (0.11 R)
• M27: 10,463,473 km (0.056 R)
• M28: 11,211,912 km (0.113 R)
• M29: 11,296,135 km (0.069 R)
• M30: 11,550,003 km (0.088 R)
• M31: 11,720,395 km (0.12 R)
• M32: 12,149,890 km (0.107 R)
• M33: 12,366,658 km (0.088 R)
• M34: 13,648,711 km (0.059 R)
• M35: 15,391,826 km (0.047 R)
• M36: 15,485,624 km (0.077 R)
• M37: 15,579,421 km (0.053 R)
• M38: 16,099,124 km (0.081 R)
• M39: 16,624,512 km (0.08 R)
• M40: 16,768,874 km (0.108 R)
• M41: 18,333,518 km (0.095 R)
• M42: 18,632,116 km (0.097 R)
• M43: 19,335,076 km (0.105 R)
• M44: 20,508,821 km (0.083 R)
• M45: 21,182,311 km (0.06 R)
• M46: 22,126,871 km (0.06 R)
• M47: 22,391,809 km (0.088 R)
• M48: 22,710,902 km (0.109 R)
• M49: 23,731,608 km (0.097 R)
• M50: 23,894,221 km (0.11 R)
• M51: 24,657,619 km (0.048 R)
• M52: 24,767,274 km (0.118 R)
• M53: 25,042,235 km (0.07 R)
• M54: 25,263,041 km (0.105 R)
• M55: 25,595,298 km (0.115 R)
• M56: 25,817,750 km (0.071 R)
• M57: 27,505,663 km (0.113 R)
• M58: 28,477,899 km (0.12 R)
• M59: 28,708,430 km (0.086 R)
• M60: 28,823,770 km (0.088 R)
• M61: 29,577,893 km (0.106 R)
• M62: 29,752,922 km (0.055 R)
• M63: 30,750,740 km (0.08 R)
• M64: 30,868,922 km (0.09 R)
• M65: 31,461,779 km (0.06 R)
• M66: 31,700,088 km (0.084 R)
• M67: 31,938,846 km (0.111 R)
• M68: 32,779,437 km (0.09 R)
• M69: 35,902,591 km (0.071 R)
• M70: 36,588,498 km (0.103 R)
• M71: 37,530,964 km (0.077 R)
• M72: 37,720,355 km (0.105 R)
• M73: 38,227,193 km (0.079 R)
• M74: 38,354,201 km (0.101 R)
• M75: 38,991,488 km (0.111 R)
• M76: 40,211,908 km (0.113 R)
• M77: 40,535,189 km (0.112 R)
• M78: 40,989,218 km (0.102 R)
• M79: 41,119,368 km (0.069 R)
• M80: 41,706,091 km (0.116 R)
• M81: 42,558,799 km (0.062 R)
• M82: 44,147,828 km (0.117 R)
• M83: 44,481,281 km (0.075 R)
• M84: 44,614,872 km (0.047 R)

Planet 9 - Ice Giant

Semi-Major Axis: 14.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 88.6

Radius: 3.3

Gravity: 8.14 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 13.44 AU - 15.98 AU

Year: 21142 Days

Day: 20.3 Hours

Environment

Temp: -202 °C

Axial Tilt: 8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (51)

Outer Limit: 39,931,241 km

• M1: 114,293 km (0.03 R)
• M2: 291,117 km (0.032 R)
• M3: 336,595 km (0.087 R)
• M4: 656,884 km (0.046 R)
• M5: 1,227,600 km (0.114 R)
• M6: 1,398,291 km (0.119 R)
• M7: 1,556,267 km (0.038 R)
• M8: 1,720,076 km (0.08 R)
• M9: 2,451,760 km (0.067 R)
• M10: 2,642,048 km (0.096 R)
• M11: 3,397,068 km (0.099 R)
• M12: 3,635,677 km (0.072 R)
• M13: 3,662,605 km (0.109 R)
• M14: 3,990,074 km (0.048 R)
• M15: 4,614,346 km (0.069 R)
• M16: 4,672,689 km (0.117 R)
• M17: 5,482,762 km (0.108 R)
• M18: 8,549,818 km (0.075 R)
• M19: 8,621,475 km (0.088 R)
• M20: 8,982,455 km (0.078 R)
• M21: 9,091,661 km (0.088 R)
• M22: 10,094,715 km (0.088 R)
• M23: 10,628,480 km (0.117 R)
• M24: 10,860,057 km (0.094 R)
• M25: 11,922,502 km (0.028 R)
• M26: 13,058,697 km (0.055 R)
• M27: 13,514,522 km (0.092 R)
• M28: 13,597,848 km (0.107 R)
• M29: 15,215,151 km (0.079 R)
• M30: 17,797,958 km (0.09 R)
• M31: 18,673,105 km (0.12 R)
• M32: 18,719,481 km (0.095 R)
• M33: 20,083,065 km (0.107 R)
• M34: 20,273,653 km (0.064 R)
• M35: 20,800,836 km (0.079 R)
• M36: 20,849,006 km (0.092 R)
• M37: 22,507,897 km (0.069 R)
• M38: 24,310,103 km (0.095 R)
• M39: 25,125,860 km (0.12 R)
• M40: 25,485,493 km (0.1 R)
• M41: 26,679,284 km (0.118 R)
• M42: 27,679,196 km (0.101 R)
• M43: 27,785,112 km (0.084 R)
• M44: 28,530,708 km (0.103 R)
• M45: 28,905,899 km (0.084 R)
• M46: 29,607,064 km (0.048 R)
• M47: 31,136,104 km (0.072 R)
• M48: 31,688,419 km (0.068 R)
• M49: 32,021,275 km (0.119 R)
• M50: 34,726,154 km (0.028 R)
• M51: 35,874,617 km (0.071 R)

Kuiper Belt

Range: 30 - 56 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 261 - 11,684 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit