🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.56 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.75

Radius: 1.5

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.016

Orbit Range: 0.55 AU - 0.57 AU

Year: 155 Days

Day: 31 Hours

Environment

Temp: 212 °C

Axial Tilt: 14.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.02 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.04

Radius: 1.02

Gravity: 1 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 0.85 AU - 1.19 AU

Year: 380 Days

Day: 33.6 Hours

Environment

Temp: 11 °C

Axial Tilt: 35.3 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 3 - Terrestrial

Semi-Major Axis: 1.37 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.76

Radius: 1.25

Gravity: 1.13 G

Time & Orbit

Eccentricity (e): 0.15

Orbit Range: 1.16 AU - 1.58 AU

Year: 592 Days

Day: 18.9 Hours

Environment

Temp: -37 °C

Axial Tilt: 23.5 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 4 - Terrestrial

Semi-Major Axis: 2.53 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.31

Radius: 0.63

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.082

Orbit Range: 2.32 AU - 2.74 AU

Year: 1485 Days

Day: 32.9 Hours

Environment

Temp: -86 °C

Axial Tilt: 12.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 5 - Terrestrial

Semi-Major Axis: 3.71 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.35

Radius: 1.62

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.18

Orbit Range: 3.04 AU - 4.38 AU

Year: 2637 Days

Day: 13.8 Hours

Environment

Temp: -130 °C

Axial Tilt: 9.3 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.8 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Gas Giant

Semi-Major Axis: 5.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 40.1

Radius: 12.6

Gravity: 0.25 G

Time & Orbit

Eccentricity (e): 0.037

Orbit Range: 5.66 AU - 6.1 AU

Year: 5261 Days

Day: 15 Hours

Environment

Temp: -158 °C

Axial Tilt: 33.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (50)

Outer Limit: 83,878,936 km

• M1: 159,771 km (0.101 R)
• M2: 282,590 km (0.076 R)
• M3: 458,667 km (0.072 R)
• M4: 611,406 km (0.089 R)
• M5: 704,905 km (0.037 R)
• M6: 866,172 km (0.112 R)
• M7: 981,063 km (0.119 R)
• M8: 1,284,148 km (0.111 R)
• M9: 1,503,159 km (0.107 R)
• M10: 1,590,824 km (0.087 R)
• M11: 2,007,005 km (0.113 R)
• M12: 2,183,231 km (0.11 R)
• M13: 2,374,866 km (0.115 R)
• M14: 2,457,295 km (0.05 R)
• M15: 2,603,901 km (0.114 R)
• M16: 2,873,027 km (0.105 R)
• M17: 3,050,151 km (0.115 R)
• M18: 3,650,936 km (0.109 R)
• M19: 3,758,647 km (0.099 R)
• M20: 3,928,440 km (0.111 R)
• M21: 4,014,309 km (0.12 R)
• M22: 4,125,610 km (0.087 R)
• M23: 4,237,958 km (0.073 R)
• M24: 4,414,783 km (0.12 R)
• M25: 4,658,926 km (0.057 R)
• M26: 4,960,217 km (0.119 R)
• M27: 5,241,012 km (0.116 R)
• M28: 5,431,300 km (0.055 R)
• M29: 5,888,471 km (0.041 R)
• M30: 6,459,486 km (0.1 R)
• M31: 6,899,603 km (0.068 R)
• M32: 7,608,398 km (0.048 R)
• M33: 7,948,284 km (0.1 R)
• M34: 8,388,102 km (0.083 R)
• M35: 8,675,031 km (0.088 R)
• M36: 8,787,529 km (0.11 R)
• M37: 8,916,631 km (0.054 R)
• M38: 9,209,544 km (0.038 R)
• M39: 9,357,197 km (0.114 R)
• M40: 9,488,993 km (0.116 R)
• M41: 10,140,940 km (0.058 R)
• M42: 10,225,613 km (0.062 R)
• M43: 10,412,610 km (0.108 R)
• M44: 10,635,212 km (0.054 R)
• M45: 11,050,196 km (0.102 R)
• M46: 11,172,119 km (0.113 R)
• M47: 11,259,633 km (0.076 R)
• M48: 11,417,609 km (0.093 R)
• M49: 11,505,722 km (0.082 R)
• M50: 12,128,647 km (0.03 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 630.4

Radius: 10.8

Gravity: 5.4 G

Time & Orbit

Eccentricity (e): 0.015

Orbit Range: 8.72 AU - 8.98 AU

Year: 9714 Days

Day: 9.5 Hours

Environment

Temp: -177 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (77)

Outer Limit: 83,878,936 km

• M1: 155,432 km (0.098 R)
• M2: 235,317 km (0.115 R)
• M3: 347,965 km (0.047 R)
• M4: 722,408 km (0.106 R)
• M5: 1,108,520 km (0.102 R)
• M6: 1,185,414 km (0.111 R)
• M7: 1,490,593 km (0.077 R)
• M8: 1,866,233 km (0.09 R)
• M9: 2,053,380 km (0.095 R)
• M10: 2,471,806 km (0.061 R)
• M11: 2,574,131 km (0.084 R)
• M12: 2,651,921 km (0.077 R)
• M13: 2,783,268 km (0.086 R)
• M14: 2,863,004 km (0.119 R)
• M15: 3,302,074 km (0.04 R)
• M16: 3,500,889 km (0.082 R)
• M17: 4,807,328 km (0.116 R)
• M18: 5,000,608 km (0.083 R)
• M19: 5,731,543 km (0.106 R)
• M20: 6,495,689 km (0.111 R)
• M21: 7,477,201 km (0.112 R)
• M22: 7,551,701 km (0.107 R)
• M23: 8,118,676 km (0.04 R)
• M24: 8,310,760 km (0.093 R)
• M25: 9,293,768 km (0.091 R)
• M26: 9,454,436 km (0.051 R)
• M27: 10,065,244 km (0.084 R)
• M28: 10,857,215 km (0.058 R)
• M29: 11,539,681 km (0.095 R)
• M30: 12,192,226 km (0.115 R)
• M31: 12,589,409 km (0.06 R)
• M32: 13,035,809 km (0.057 R)
• M33: 14,220,774 km (0.081 R)
• M34: 14,359,600 km (0.083 R)
• M35: 14,545,551 km (0.062 R)
• M36: 15,869,492 km (0.093 R)
• M37: 16,545,973 km (0.11 R)
• M38: 16,692,130 km (0.108 R)
• M39: 18,127,073 km (0.071 R)
• M40: 19,037,675 km (0.115 R)
• M41: 19,704,433 km (0.068 R)
• M42: 19,911,177 km (0.095 R)
• M43: 20,797,844 km (0.109 R)
• M44: 21,008,328 km (0.106 R)
• M45: 21,113,795 km (0.057 R)
• M46: 21,964,259 km (0.117 R)
• M47: 22,286,044 km (0.097 R)
• M48: 22,717,633 km (0.092 R)
• M49: 25,028,023 km (0.094 R)
• M50: 25,532,916 km (0.072 R)
• M51: 26,381,584 km (0.056 R)
• M52: 27,470,059 km (0.103 R)
• M53: 28,106,897 km (0.095 R)
• M54: 29,041,883 km (0.069 R)
• M55: 29,277,201 km (0.046 R)
• M56: 29,631,299 km (0.06 R)
• M57: 29,809,021 km (0.098 R)
• M58: 31,182,629 km (0.087 R)
• M59: 31,303,055 km (0.04 R)
• M60: 33,066,515 km (0.113 R)
• M61: 33,929,246 km (0.106 R)
• M62: 34,986,903 km (0.033 R)
• M63: 35,362,842 km (0.108 R)
• M64: 36,498,440 km (0.079 R)
• M65: 36,752,457 km (0.097 R)
• M66: 39,064,791 km (0.112 R)
• M67: 39,324,643 km (0.052 R)
• M68: 39,584,943 km (0.084 R)
• M69: 39,845,991 km (0.034 R)
• M70: 40,107,488 km (0.062 R)
• M71: 42,020,845 km (0.111 R)
• M72: 42,220,409 km (0.103 R)
• M73: 42,353,700 km (0.07 R)
• M74: 43,021,954 km (0.086 R)
• M75: 44,233,846 km (0.065 R)
• M76: 44,640,304 km (0.072 R)
• M77: 44,844,056 km (0.059 R)

Planet 8 - Gas Giant

Semi-Major Axis: 9.42 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 437.4

Radius: 12

Gravity: 3.04 G

Time & Orbit

Eccentricity (e): 0.081

Orbit Range: 8.66 AU - 10.18 AU

Year: 10667 Days

Day: 13.8 Hours

Environment

Temp: -181 °C

Axial Tilt: 44.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (78)

Outer Limit: 83,878,936 km

• M1: 156,330 km (0.111 R)
• M2: 308,920 km (0.084 R)
• M3: 532,120 km (0.082 R)
• M4: 764,595 km (0.094 R)
• M5: 927,507 km (0.117 R)
• M6: 1,013,675 km (0.061 R)
• M7: 1,120,937 km (0.037 R)
• M8: 1,251,237 km (0.097 R)
• M9: 1,446,611 km (0.099 R)
• M10: 1,527,693 km (0.105 R)
• M11: 1,652,308 km (0.102 R)
• M12: 1,802,206 km (0.077 R)
• M13: 2,069,836 km (0.108 R)
• M14: 2,232,150 km (0.111 R)
• M15: 2,975,202 km (0.065 R)
• M16: 3,159,208 km (0.115 R)
• M17: 3,320,026 km (0.103 R)
• M18: 3,733,813 km (0.098 R)
• M19: 4,824,382 km (0.045 R)
• M20: 4,916,983 km (0.09 R)
• M21: 5,325,086 km (0.053 R)
• M22: 5,517,169 km (0.106 R)
• M23: 6,207,414 km (0.092 R)
• M24: 6,717,393 km (0.095 R)
• M25: 7,135,070 km (0.106 R)
• M26: 7,276,141 km (0.1 R)
• M27: 7,705,188 km (0.115 R)
• M28: 8,550,416 km (0.072 R)
• M29: 8,700,313 km (0.112 R)
• M30: 9,155,689 km (0.082 R)
• M31: 9,309,176 km (0.118 R)
• M32: 10,487,708 km (0.066 R)
• M33: 12,342,423 km (0.117 R)
• M34: 12,469,731 km (0.083 R)
• M35: 12,811,113 km (0.042 R)
• M36: 12,939,917 km (0.083 R)
• M37: 13,198,871 km (0.027 R)
• M38: 13,634,350 km (0.063 R)
• M39: 14,074,616 km (0.089 R)
• M40: 14,296,470 km (0.085 R)
• M41: 14,608,980 km (0.089 R)
• M42: 14,698,739 km (0.064 R)
• M43: 14,968,913 km (0.098 R)
• M44: 15,743,680 km (0.117 R)
• M45: 15,881,759 km (0.081 R)
• M46: 16,671,785 km (0.029 R)
• M47: 17,808,729 km (0.041 R)
• M48: 18,000,663 km (0.079 R)
• M49: 20,357,278 km (0.064 R)
• M50: 21,164,209 km (0.056 R)
• M51: 21,571,564 km (0.091 R)
• M52: 21,827,526 km (0.072 R)
• M53: 22,549,635 km (0.113 R)
• M54: 23,858,317 km (0.112 R)
• M55: 24,122,956 km (0.095 R)
• M56: 24,229,170 km (0.092 R)
• M57: 24,815,744 km (0.083 R)
• M58: 24,976,561 km (0.084 R)
• M59: 26,658,640 km (0.057 R)
• M60: 27,264,212 km (0.104 R)
• M61: 27,374,765 km (0.066 R)
• M62: 28,264,872 km (0.06 R)
• M63: 29,788,526 km (0.103 R)
• M64: 30,130,806 km (0.097 R)
• M65: 31,628,730 km (0.086 R)
• M66: 33,387,103 km (0.077 R)
• M67: 34,577,005 km (0.083 R)
• M68: 35,418,044 km (0.069 R)
• M69: 35,720,082 km (0.074 R)
• M70: 36,023,018 km (0.119 R)
• M71: 36,144,491 km (0.09 R)
• M72: 36,326,851 km (0.079 R)
• M73: 37,858,284 km (0.057 R)
• M74: 38,043,487 km (0.085 R)
• M75: 38,290,921 km (0.081 R)
• M76: 38,538,805 km (0.059 R)
• M77: 38,911,753 km (0.117 R)
• M78: 41,682,904 km (0.114 R)

Planet 9 - Gas Giant

Semi-Major Axis: 11.87 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 978.3

Radius: 8.2

Gravity: 14.55 G

Time & Orbit

Eccentricity (e): 0.133

Orbit Range: 10.29 AU - 13.45 AU

Year: 15089 Days

Day: 7.9 Hours

Environment

Temp: -192 °C

Axial Tilt: 31.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (89)

Outer Limit: 83,878,936 km

• M1: 232,176 km (0.107 R)
• M2: 287,677 km (0.092 R)
• M3: 606,619 km (0.089 R)
• M4: 801,545 km (0.118 R)
• M5: 918,681 km (0.06 R)
• M6: 1,387,221 km (0.117 R)
• M7: 1,736,682 km (0.095 R)
• M8: 1,828,236 km (0.03 R)
• M9: 2,310,838 km (0.074 R)
• M10: 2,549,148 km (0.106 R)
• M11: 2,689,022 km (0.114 R)
• M12: 3,198,253 km (0.079 R)
• M13: 3,816,391 km (0.101 R)
• M14: 4,098,533 km (0.108 R)
• M15: 4,897,834 km (0.101 R)
• M16: 4,984,751 km (0.111 R)
• M17: 5,744,409 km (0.085 R)
• M18: 5,928,414 km (0.107 R)
• M19: 6,161,039 km (0.061 R)
• M20: 8,180,012 km (0.109 R)
• M21: 9,072,213 km (0.074 R)
• M22: 9,611,514 km (0.092 R)
• M23: 9,665,967 km (0.082 R)
• M24: 10,050,284 km (0.1 R)
• M25: 10,216,637 km (0.097 R)
• M26: 10,272,287 km (0.113 R)
• M27: 10,777,330 km (0.078 R)
• M28: 11,004,569 km (0.114 R)
• M29: 11,175,859 km (0.11 R)
• M30: 11,753,606 km (0.089 R)
• M31: 12,163,803 km (0.118 R)
• M32: 12,281,836 km (0.101 R)
• M33: 12,638,327 km (0.072 R)
• M34: 13,605,478 km (0.079 R)
• M35: 14,408,818 km (0.08 R)
• M36: 15,227,418 km (0.117 R)
• M37: 15,931,874 km (0.107 R)
• M38: 18,378,248 km (0.117 R)
• M39: 21,009,974 km (0.1 R)
• M40: 21,578,745 km (0.068 R)
• M41: 21,793,418 km (0.112 R)
• M42: 21,865,225 km (0.106 R)
• M43: 22,224,858 km (0.07 R)
• M44: 22,659,141 km (0.063 R)
• M45: 23,536,083 km (0.095 R)
• M46: 24,275,246 km (0.101 R)
• M47: 24,947,091 km (0.081 R)
• M48: 25,624,918 km (0.105 R)
• M49: 26,308,880 km (0.107 R)
• M50: 26,538,213 km (0.091 R)
• M51: 27,230,253 km (0.07 R)
• M52: 28,710,375 km (0.091 R)
• M53: 29,897,434 km (0.081 R)
• M54: 35,475,789 km (0.094 R)
• M55: 37,777,651 km (0.102 R)
• M56: 38,382,326 km (0.112 R)
• M57: 38,816,160 km (0.093 R)
• M58: 38,990,142 km (0.112 R)
• M59: 40,744,326 km (0.107 R)
• M60: 41,275,549 km (0.105 R)
• M61: 43,243,209 km (0.059 R)
• M62: 44,329,140 km (0.069 R)
• M63: 45,332,643 km (0.12 R)
• M64: 45,515,900 km (0.106 R)
• M65: 45,699,307 km (0.087 R)
• M66: 46,620,531 km (0.087 R)
• M67: 46,712,982 km (0.046 R)
• M68: 47,454,689 km (0.101 R)
• M69: 52,755,390 km (0.104 R)
• M70: 53,334,334 km (0.075 R)
• M71: 53,818,432 km (0.084 R)
• M72: 56,162,182 km (0.057 R)
• M73: 56,260,468 km (0.108 R)
• M74: 56,556,073 km (0.112 R)
• M75: 57,544,766 km (0.094 R)
• M76: 57,643,949 km (0.089 R)
• M77: 59,338,594 km (0.084 R)
• M78: 62,369,147 km (0.063 R)
• M79: 63,492,927 km (0.1 R)
• M80: 64,108,672 km (0.115 R)
• M81: 64,211,595 km (0.117 R)
• M82: 64,726,511 km (0.05 R)
• M83: 66,904,057 km (0.048 R)
• M84: 67,008,477 km (0.101 R)
• M85: 68,789,738 km (0.098 R)
• M86: 68,895,055 km (0.078 R)
• M87: 69,316,622 km (0.072 R)
• M88: 70,162,449 km (0.081 R)
• M89: 70,692,773 km (0.08 R)

Planet 10 - Ice Giant

Semi-Major Axis: 15.25 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 760.3

Radius: 6.1

Gravity: 20.43 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 14.88 AU - 15.62 AU

Year: 21973 Days

Day: 19.5 Hours

Environment

Temp: -203 °C

Axial Tilt: 7.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (95)

Outer Limit: 83,878,936 km

• M1: 83,326 km (0.068 R)
• M2: 295,306 km (0.101 R)
• M3: 648,208 km (0.025 R)
• M4: 771,626 km (0.088 R)
• M5: 984,803 km (0.083 R)
• M6: 1,432,699 km (0.074 R)
• M7: 1,594,713 km (0.116 R)
• M8: 2,116,062 km (0.089 R)
• M9: 2,886,491 km (0.071 R)
• M10: 3,050,301 km (0.105 R)
• M11: 4,325,323 km (0.076 R)
• M12: 4,560,192 km (0.112 R)
• M13: 4,703,058 km (0.085 R)
• M14: 5,189,849 km (0.066 R)
• M15: 5,846,434 km (0.081 R)
• M16: 6,852,630 km (0.083 R)
• M17: 6,907,083 km (0.118 R)
• M18: 7,403,449 km (0.102 R)
• M19: 8,256,007 km (0.116 R)
• M20: 8,664,559 km (0.102 R)
• M21: 8,841,683 km (0.114 R)
• M22: 8,960,314 km (0.056 R)
• M23: 9,440,523 km (0.082 R)
• M24: 10,551,287 km (0.055 R)
• M25: 10,994,247 km (0.084 R)
• M26: 11,572,742 km (0.047 R)
• M27: 16,543,580 km (0.063 R)
• M28: 18,177,338 km (0.051 R)
• M29: 18,328,432 km (0.09 R)
• M30: 19,089,885 km (0.092 R)
• M31: 20,643,758 km (0.077 R)
• M32: 20,959,260 km (0.082 R)
• M33: 21,117,684 km (0.112 R)
• M34: 21,915,789 km (0.116 R)
• M35: 22,399,289 km (0.12 R)
• M36: 22,480,222 km (0.098 R)
• M37: 23,131,122 km (0.071 R)
• M38: 23,705,727 km (0.071 R)
• M39: 24,036,339 km (0.081 R)
• M40: 24,119,216 km (0.072 R)
• M41: 25,457,818 km (0.11 R)
• M42: 26,906,374 km (0.114 R)
• M43: 26,992,393 km (0.066 R)
• M44: 27,423,982 km (0.107 R)
• M45: 27,683,984 km (0.106 R)
• M46: 27,770,900 km (0.098 R)
• M47: 28,556,738 km (0.039 R)
• M48: 28,732,365 km (0.117 R)
• M49: 28,996,555 km (0.061 R)
• M50: 29,615,890 km (0.069 R)
• M51: 29,704,752 km (0.062 R)
• M52: 33,238,104 km (0.048 R)
• M53: 33,330,406 km (0.091 R)
• M54: 33,515,309 km (0.033 R)
• M55: 33,793,261 km (0.106 R)
• M56: 34,725,555 km (0.116 R)
• M57: 35,100,896 km (0.092 R)
• M58: 35,477,434 km (0.08 R)
• M59: 36,615,276 km (0.103 R)
• M60: 36,710,719 km (0.069 R)
• M61: 38,150,898 km (0.107 R)
• M62: 38,635,146 km (0.092 R)
• M63: 39,805,600 km (0.056 R)
• M64: 39,903,586 km (0.093 R)
• M65: 41,384,157 km (0.049 R)
• M66: 41,881,569 km (0.075 R)
• M67: 45,214,311 km (0.068 R)
• M68: 46,137,928 km (0.047 R)
• M69: 46,344,074 km (0.118 R)
• M70: 49,472,016 km (0.069 R)
• M71: 50,954,830 km (0.073 R)
• M72: 53,206,427 km (0.08 R)
• M73: 54,507,480 km (0.063 R)
• M74: 54,616,387 km (0.076 R)
• M75: 55,161,971 km (0.032 R)
• M76: 57,473,108 km (0.118 R)
• M77: 58,139,268 km (0.115 R)
• M78: 58,250,568 km (0.111 R)
• M79: 59,031,469 km (0.11 R)
• M80: 59,143,219 km (0.101 R)
• M81: 60,378,149 km (0.116 R)
• M82: 62,759,000 km (0.1 R)
• M83: 64,824,049 km (0.099 R)
• M84: 67,261,447 km (0.113 R)
• M85: 71,032,809 km (0.087 R)
• M86: 71,151,739 km (0.114 R)
• M87: 71,628,208 km (0.087 R)
• M88: 72,704,116 km (0.041 R)
• M89: 74,267,713 km (0.078 R)
• M90: 74,751,064 km (0.051 R)
• M91: 77,061,154 km (0.098 R)
• M92: 79,394,582 km (0.114 R)
• M93: 80,880,238 km (0.037 R)
• M94: 81,377,502 km (0.101 R)
• M95: 82,875,276 km (0.117 R)

Kuiper Belt

Range: 30 - 47 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 478 - 16,379 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit