🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.63

Radius: 1.47

Gravity: 1.22 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 0.53 AU - 0.73 AU

Year: 185 Days

Day: 17.5 Hours

Environment

Temp: 157 °C

Axial Tilt: 6.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 1.6 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.88

Radius: 1.72

Gravity: 1.31 G

Time & Orbit

Eccentricity (e): 0.114

Orbit Range: 1.42 AU - 1.78 AU

Year: 751 Days

Day: 42.3 Hours

Environment

Temp: -53 °C

Axial Tilt: 38.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 4.75 AU

Composition

Type: Main (Rocky/Icy Mix)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 7.89 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 74.6

Radius: 13.6

Gravity: 0.4 G

Time & Orbit

Eccentricity (e): 0.141

Orbit Range: 6.78 AU - 9 AU

Year: 8219 Days

Day: 8.6 Hours

Environment

Temp: -170 °C

Axial Tilt: 10.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (48)

Outer Limit: 70,700,947 km

• M1: 169,794 km (0.104 R)
• M2: 328,517 km (0.114 R)
• M3: 447,298 km (0.105 R)
• M4: 553,961 km (0.109 R)
• M5: 752,328 km (0.102 R)
• M6: 986,748 km (0.092 R)
• M7: 1,178,981 km (0.099 R)
• M8: 1,396,197 km (0.093 R)
• M9: 1,516,025 km (0.03 R)
• M10: 1,779,616 km (0.116 R)
• M11: 3,135,721 km (0.069 R)
• M12: 3,295,491 km (0.028 R)
• M13: 4,065,322 km (0.097 R)
• M14: 4,187,244 km (0.064 R)
• M15: 4,310,513 km (0.075 R)
• M16: 4,435,128 km (0.112 R)
• M17: 4,560,790 km (0.048 R)
• M18: 4,742,552 km (0.119 R)
• M19: 5,784,650 km (0.083 R)
• M20: 6,937,452 km (0.116 R)
• M21: 7,723,289 km (0.074 R)
• M22: 7,918,814 km (0.105 R)
• M23: 8,226,088 km (0.099 R)
• M24: 8,672,039 km (0.087 R)
• M25: 8,988,887 km (0.112 R)
• M26: 9,332,663 km (0.105 R)
• M27: 9,680,628 km (0.119 R)
• M28: 9,915,197 km (0.082 R)
• M29: 10,056,717 km (0.111 R)
• M30: 10,222,770 km (0.026 R)
• M31: 10,509,550 km (0.117 R)
• M32: 10,774,787 km (0.117 R)
• M33: 11,361,210 km (0.083 R)
• M34: 11,683,145 km (0.101 R)
• M35: 11,857,875 km (0.039 R)
• M36: 12,514,161 km (0.112 R)
• M37: 12,846,717 km (0.088 R)
• M38: 13,494,626 km (0.115 R)
• M39: 13,809,379 km (0.11 R)
• M40: 13,994,133 km (0.065 R)
• M41: 14,822,157 km (0.091 R)
• M42: 15,065,553 km (0.054 R)
• M43: 15,528,857 km (0.061 R)
• M44: 16,024,625 km (0.066 R)
• M45: 16,609,552 km (0.105 R)
• M46: 17,543,043 km (0.047 R)
• M47: 18,203,667 km (0.093 R)
• M48: 19,312,936 km (0.098 R)

Planet 4 - Gas Giant

Semi-Major Axis: 10.86 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 922.5

Radius: 8.3

Gravity: 13.39 G

Time & Orbit

Eccentricity (e): 0.085

Orbit Range: 9.94 AU - 11.78 AU

Year: 13272 Days

Day: 9.6 Hours

Environment

Temp: -177 °C

Axial Tilt: 16.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (93)

Outer Limit: 70,700,947 km

• M1: 176,825 km (0.12 R)
• M2: 297,401 km (0.049 R)
• M3: 434,881 km (0.044 R)
• M4: 539,151 km (0.118 R)
• M5: 732,880 km (0.062 R)
• M6: 1,064,838 km (0.081 R)
• M7: 1,185,414 km (0.047 R)
• M8: 1,440,478 km (0.096 R)
• M9: 2,061,309 km (0.078 R)
• M10: 2,592,232 km (0.07 R)
• M11: 3,129,438 km (0.051 R)
• M12: 3,482,489 km (0.078 R)
• M13: 3,627,300 km (0.117 R)
• M14: 3,700,453 km (0.072 R)
• M15: 4,226,439 km (0.089 R)
• M16: 5,347,525 km (0.052 R)
• M17: 5,769,092 km (0.067 R)
• M18: 6,289,244 km (0.062 R)
• M19: 6,466,069 km (0.096 R)
• M20: 6,779,327 km (0.118 R)
• M21: 7,607,501 km (0.064 R)
• M22: 7,985,834 km (0.109 R)
• M23: 8,564,777 km (0.089 R)
• M24: 10,225,762 km (0.103 R)
• M25: 10,748,457 km (0.083 R)
• M26: 11,066,203 km (0.099 R)
• M27: 11,279,679 km (0.049 R)
• M28: 11,602,661 km (0.091 R)
• M29: 11,765,274 km (0.098 R)
• M30: 14,467,760 km (0.095 R)
• M31: 16,008,169 km (0.04 R)
• M32: 16,370,944 km (0.03 R)
• M33: 16,431,830 km (0.08 R)
• M34: 16,675,525 km (0.05 R)
• M35: 18,477,880 km (0.082 R)
• M36: 18,667,869 km (0.065 R)
• M37: 19,950,821 km (0.096 R)
• M38: 20,537,394 km (0.103 R)
• M39: 23,008,003 km (0.073 R)
• M40: 23,212,503 km (0.06 R)
• M41: 23,280,720 km (0.113 R)
• M42: 24,729,725 km (0.111 R)
• M43: 26,065,783 km (0.112 R)
• M44: 26,136,842 km (0.087 R)
• M45: 27,137,054 km (0.098 R)
• M46: 27,497,435 km (0.107 R)
• M47: 29,175,026 km (0.078 R)
• M48: 29,396,281 km (0.114 R)
• M49: 30,137,837 km (0.107 R)
• M50: 30,510,935 km (0.118 R)
• M51: 31,639,501 km (0.071 R)
• M52: 31,715,197 km (0.025 R)
• M53: 31,790,894 km (0.082 R)
• M54: 32,018,582 km (0.089 R)
• M55: 32,323,014 km (0.044 R)
• M56: 32,475,603 km (0.053 R)
• M57: 32,628,492 km (0.083 R)
• M58: 35,027,593 km (0.109 R)
• M59: 35,813,581 km (0.045 R)
• M60: 36,129,681 km (0.091 R)
• M61: 36,208,818 km (0.1 R)
• M62: 37,643,312 km (0.058 R)
• M63: 38,610,014 km (0.054 R)
• M64: 39,829,835 km (0.103 R)
• M65: 40,075,325 km (0.082 R)
• M66: 40,814,637 km (0.119 R)
• M67: 40,897,215 km (0.033 R)
• M68: 41,062,222 km (0.057 R)
• M69: 42,473,977 km (0.065 R)
• M70: 42,557,602 km (0.075 R)
• M71: 42,892,253 km (0.119 R)
• M72: 42,976,177 km (0.116 R)
• M73: 43,648,620 km (0.036 R)
• M74: 43,901,739 km (0.104 R)
• M75: 44,239,980 km (0.072 R)
• M76: 46,029,619 km (0.118 R)
• M77: 46,631,451 km (0.095 R)
• M78: 47,063,041 km (0.106 R)
• M79: 47,843,045 km (0.111 R)
• M80: 49,064,810 km (0.101 R)
• M81: 50,473,723 km (0.103 R)
• M82: 50,916,682 km (0.12 R)
• M83: 51,005,544 km (0.099 R)
• M84: 51,272,127 km (0.103 R)
• M85: 52,971,110 km (0.102 R)
• M86: 54,053,750 km (0.077 R)
• M87: 57,068,446 km (0.109 R)
• M88: 57,807,310 km (0.082 R)
• M89: 57,899,911 km (0.094 R)
• M90: 58,085,263 km (0.073 R)
• M91: 59,481,759 km (0.084 R)
• M92: 60,324,893 km (0.04 R)
• M93: 62,117,673 km (0.083 R)

Planet 5 - Gas Giant

Semi-Major Axis: 11.78 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 488

Radius: 8.4

Gravity: 6.92 G

Time & Orbit

Eccentricity (e): 0.025

Orbit Range: 11.49 AU - 12.07 AU

Year: 14994 Days

Day: 11.1 Hours

Environment

Temp: -191 °C

Axial Tilt: 37.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (93)

Outer Limit: 70,700,947 km

• M1: 228,586 km (0.116 R)
• M2: 470,934 km (0.06 R)
• M3: 711,637 km (0.096 R)
• M4: 787,483 km (0.101 R)
• M5: 989,590 km (0.049 R)
• M6: 1,394,851 km (0.061 R)
• M7: 1,516,174 km (0.047 R)
• M8: 1,641,089 km (0.055 R)
• M9: 1,743,563 km (0.096 R)
• M10: 1,874,611 km (0.116 R)
• M11: 2,063,703 km (0.107 R)
• M12: 2,667,928 km (0.04 R)
• M13: 2,789,103 km (0.088 R)
• M14: 2,850,288 km (0.094 R)
• M15: 3,195,261 km (0.1 R)
• M16: 3,788,267 km (0.06 R)
• M17: 4,272,964 km (0.066 R)
• M18: 4,486,590 km (0.071 R)
• M19: 4,703,955 km (0.089 R)
• M20: 5,685,018 km (0.067 R)
• M21: 6,038,967 km (0.096 R)
• M22: 6,279,071 km (0.095 R)
• M23: 7,185,784 km (0.095 R)
• M24: 9,719,523 km (0.05 R)
• M25: 10,142,736 km (0.114 R)
• M26: 10,716,144 km (0.083 R)
• M27: 11,794,895 km (0.102 R)
• M28: 12,397,774 km (0.115 R)
• M29: 13,165,361 km (0.111 R)
• M30: 14,212,695 km (0.113 R)
• M31: 14,478,830 km (0.032 R)
• M32: 14,961,732 km (0.103 R)
• M33: 15,833,439 km (0.099 R)
• M34: 17,115,193 km (0.113 R)
• M35: 18,314,370 km (0.102 R)
• M36: 18,430,009 km (0.064 R)
• M37: 18,661,886 km (0.054 R)
• M38: 19,011,645 km (0.087 R)
• M39: 20,073,940 km (0.094 R)
• M40: 20,312,698 km (0.089 R)
• M41: 21,155,383 km (0.11 R)
• M42: 21,642,174 km (0.086 R)
• M43: 21,764,396 km (0.076 R)
• M44: 22,194,041 km (0.076 R)
• M45: 23,249,304 km (0.099 R)
• M46: 24,193,865 km (0.115 R)
• M47: 24,702,797 km (0.107 R)
• M48: 25,472,927 km (0.094 R)
• M49: 26,055,461 km (0.077 R)
• M50: 26,708,157 km (0.105 R)
• M51: 27,432,061 km (0.081 R)
• M52: 29,914,488 km (0.109 R)
• M53: 30,050,771 km (0.096 R)
• M54: 30,118,988 km (0.108 R)
• M55: 30,597,701 km (0.105 R)
• M56: 31,562,757 km (0.119 R)
• M57: 31,632,171 km (0.11 R)
• M58: 32,118,812 km (0.071 R)
• M59: 32,258,238 km (0.035 R)
• M60: 32,397,962 km (0.089 R)
• M61: 32,467,824 km (0.111 R)
• M62: 32,607,848 km (0.117 R)
• M63: 32,958,804 km (0.093 R)
• M64: 33,169,887 km (0.088 R)
• M65: 33,947,946 km (0.11 R)
• M66: 34,374,748 km (0.067 R)
• M67: 34,946,661 km (0.112 R)
• M68: 35,882,844 km (0.03 R)
• M69: 36,535,839 km (0.081 R)
• M70: 37,119,420 km (0.099 R)
• M71: 37,559,238 km (0.087 R)
• M72: 37,927,099 km (0.099 R)
• M73: 39,933,805 km (0.099 R)
• M74: 40,083,702 km (0.112 R)
• M75: 41,290,658 km (0.106 R)
• M76: 43,200,125 km (0.097 R)
• M77: 44,748,463 km (0.11 R)
• M78: 46,472,429 km (0.108 R)
• M79: 46,551,267 km (0.093 R)
• M80: 47,819,408 km (0.056 R)
• M81: 48,297,972 km (0.038 R)
• M82: 48,377,857 km (0.084 R)
• M83: 49,259,587 km (0.084 R)
• M84: 50,713,977 km (0.069 R)
• M85: 51,201,966 km (0.11 R)
• M86: 51,283,347 km (0.061 R)
• M87: 51,446,558 km (0.083 R)
• M88: 53,416,912 km (0.111 R)
• M89: 53,664,945 km (0.119 R)
• M90: 53,996,155 km (0.087 R)
• M91: 54,245,086 km (0.115 R)
• M92: 55,077,598 km (0.114 R)
• M93: 55,998,223 km (0.087 R)

Planet 6 - Ice Giant

Semi-Major Axis: 12.82 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 448.3

Radius: 7.6

Gravity: 7.76 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 10.77 AU - 14.87 AU

Year: 17023 Days

Day: 19.7 Hours

Environment

Temp: -196 °C

Axial Tilt: 29.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (91)

Outer Limit: 70,700,947 km

• M1: 203,304 km (0.07 R)
• M2: 274,811 km (0.053 R)
• M3: 357,389 km (0.112 R)
• M4: 1,076,207 km (0.101 R)
• M5: 1,215,184 km (0.058 R)
• M6: 3,032,798 km (0.11 R)
• M7: 3,535,895 km (0.115 R)
• M8: 3,674,423 km (0.045 R)
• M9: 5,000,458 km (0.052 R)
• M10: 5,078,100 km (0.096 R)
• M11: 5,472,440 km (0.094 R)
• M12: 5,795,122 km (0.112 R)
• M13: 6,165,527 km (0.103 R)
• M14: 6,885,990 km (0.101 R)
• M15: 7,190,272 km (0.089 R)
• M16: 9,297,657 km (0.112 R)
• M17: 9,489,442 km (0.118 R)
• M18: 11,069,794 km (0.109 R)
• M19: 11,222,084 km (0.067 R)
• M20: 11,426,285 km (0.033 R)
• M21: 11,942,099 km (0.117 R)
• M22: 12,150,638 km (0.026 R)
• M23: 13,103,577 km (0.115 R)
• M24: 13,752,083 km (0.043 R)
• M25: 14,025,399 km (0.098 R)
• M26: 14,135,204 km (0.062 R)
• M27: 17,031,119 km (0.091 R)
• M28: 17,560,696 km (0.066 R)
• M29: 18,335,164 km (0.104 R)
• M30: 19,059,816 km (0.069 R)
• M31: 19,364,547 km (0.086 R)
• M32: 20,537,244 km (0.104 R)
• M33: 20,849,605 km (0.108 R)
• M34: 21,037,949 km (0.117 R)
• M35: 21,100,780 km (0.098 R)
• M36: 21,226,591 km (0.11 R)
• M37: 22,371,015 km (0.119 R)
• M38: 22,821,454 km (0.07 R)
• M39: 22,950,707 km (0.106 R)
• M40: 23,145,184 km (0.075 R)
• M41: 23,862,356 km (0.08 R)
• M42: 24,454,614 km (0.108 R)
• M43: 26,057,556 km (0.098 R)
• M44: 26,328,028 km (0.052 R)
• M45: 26,667,316 km (0.073 R)
• M46: 27,213,349 km (0.073 R)
• M47: 28,177,657 km (0.081 R)
• M48: 29,574,751 km (0.086 R)
• M49: 30,423,719 km (0.063 R)
• M50: 30,565,987 km (0.071 R)
• M51: 31,640,099 km (0.115 R)
• M52: 32,073,335 km (0.105 R)
• M53: 32,218,145 km (0.1 R)
• M54: 32,508,365 km (0.081 R)
• M55: 33,091,498 km (0.102 R)
• M56: 33,457,713 km (0.107 R)
• M57: 34,712,989 km (0.12 R)
• M58: 35,758,229 km (0.055 R)
• M59: 36,134,019 km (0.068 R)
• M60: 36,360,062 km (0.11 R)
• M61: 37,345,313 km (0.076 R)
• M62: 37,497,604 km (0.111 R)
• M63: 38,109,160 km (0.107 R)
• M64: 38,569,921 km (0.055 R)
• M65: 40,197,097 km (0.076 R)
• M66: 40,431,517 km (0.089 R)
• M67: 40,979,943 km (0.09 R)
• M68: 42,163,412 km (0.045 R)
• M69: 43,278,066 km (0.088 R)
• M70: 43,919,392 km (0.108 R)
• M71: 44,160,843 km (0.112 R)
• M72: 46,188,791 km (0.028 R)
• M73: 47,255,275 km (0.049 R)
• M74: 48,164,082 km (0.118 R)
• M75: 48,579,066 km (0.064 R)
• M76: 48,828,595 km (0.059 R)
• M77: 49,412,625 km (0.111 R)
• M78: 50,250,822 km (0.049 R)
• M79: 50,587,418 km (0.113 R)
• M80: 50,924,910 km (0.09 R)
• M81: 51,263,002 km (0.066 R)
• M82: 51,941,428 km (0.115 R)
• M83: 53,392,976 km (0.099 R)
• M84: 53,822,472 km (0.116 R)
• M85: 54,080,827 km (0.065 R)
• M86: 54,684,903 km (0.085 R)
• M87: 54,771,371 km (0.109 R)
• M88: 55,987,003 km (0.1 R)
• M89: 56,248,799 km (0.064 R)
• M90: 56,860,804 km (0.114 R)
• M91: 57,915,320 km (0.103 R)

Planet 7 - Ice Giant

Semi-Major Axis: 13.85 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 601.6

Radius: 3.4

Gravity: 52.04 G

Time & Orbit

Eccentricity (e): 0.109

Orbit Range: 12.34 AU - 15.36 AU

Year: 19115 Days

Day: 19.6 Hours

Environment

Temp: -189 °C

Axial Tilt: 42.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (98)

Outer Limit: 70,700,947 km

• M1: 67,319 km (0.089 R)
• M2: 172,038 km (0.107 R)
• M3: 198,965 km (0.029 R)
• M4: 257,308 km (0.098 R)
• M5: 428,000 km (0.095 R)
• M6: 465,848 km (0.115 R)
• M7: 739,462 km (0.077 R)
• M8: 856,149 km (0.081 R)
• M9: 978,669 km (0.048 R)
• M10: 1,029,233 km (0.046 R)
• M11: 1,240,316 km (0.118 R)
• M12: 1,493,585 km (0.114 R)
• M13: 2,378,008 km (0.079 R)
• M14: 2,726,272 km (0.057 R)
• M15: 3,016,342 km (0.111 R)
• M16: 3,586,160 km (0.084 R)
• M17: 4,188,292 km (0.047 R)
• M18: 4,229,581 km (0.1 R)
• M19: 4,395,933 km (0.103 R)
• M20: 4,606,866 km (0.072 R)
• M21: 4,735,072 km (0.108 R)
• M22: 5,126,569 km (0.115 R)
• M23: 6,600,707 km (0.106 R)
• M24: 6,842,008 km (0.072 R)
• M25: 7,086,302 km (0.084 R)
• M26: 7,234,254 km (0.065 R)
• M27: 7,433,069 km (0.117 R)
• M28: 7,533,300 km (0.083 R)
• M29: 7,583,415 km (0.091 R)
• M30: 8,298,194 km (0.102 R)
• M31: 8,611,003 km (0.104 R)
• M32: 8,980,809 km (0.073 R)
• M33: 9,355,851 km (0.109 R)
• M34: 9,900,387 km (0.062 R)
• M35: 9,955,439 km (0.097 R)
• M36: 10,176,545 km (0.1 R)
• M37: 11,134,121 km (0.097 R)
• M38: 11,191,417 km (0.033 R)
• M39: 11,944,193 km (0.08 R)
• M40: 12,120,120 km (0.116 R)
• M41: 12,474,817 km (0.088 R)
• M42: 14,050,531 km (0.064 R)
• M43: 14,610,476 km (0.053 R)
• M44: 15,495,796 km (0.091 R)
• M45: 16,855,940 km (0.031 R)
• M46: 16,987,437 km (0.093 R)
• M47: 17,317,749 km (0.042 R)
• M48: 17,650,155 km (0.054 R)
• M49: 19,069,241 km (0.113 R)
• M50: 20,594,690 km (0.066 R)
• M51: 21,443,060 km (0.081 R)
• M52: 22,736,932 km (0.12 R)
• M53: 24,204,038 km (0.106 R)
• M54: 25,023,834 km (0.094 R)
• M55: 25,399,624 km (0.103 R)
• M56: 25,852,756 km (0.099 R)
• M57: 26,614,209 km (0.103 R)
• M58: 27,305,651 km (0.064 R)
• M59: 28,784,725 km (0.114 R)
• M60: 29,970,737 km (0.043 R)
• M61: 30,449,599 km (0.061 R)
• M62: 30,529,634 km (0.066 R)
• M63: 30,931,005 km (0.077 R)
• M64: 31,011,489 km (0.035 R)
• M65: 31,495,737 km (0.113 R)
• M66: 35,038,963 km (0.074 R)
• M67: 35,206,812 km (0.104 R)
• M68: 35,290,886 km (0.099 R)
• M69: 35,627,630 km (0.093 R)
• M70: 37,584,670 km (0.113 R)
• M71: 38,014,614 km (0.115 R)
• M72: 38,359,886 km (0.076 R)
• M73: 41,601,821 km (0.079 R)
• M74: 41,690,683 km (0.079 R)
• M75: 41,779,544 km (0.09 R)
• M76: 42,135,736 km (0.113 R)
• M77: 42,492,976 km (0.053 R)
• M78: 43,660,887 km (0.083 R)
• M79: 43,931,958 km (0.085 R)
• M80: 46,120,126 km (0.096 R)
• M81: 46,396,134 km (0.056 R)
• M82: 48,343,450 km (0.07 R)
• M83: 50,886,165 km (0.052 R)
• M84: 51,266,592 km (0.11 R)
• M85: 51,647,917 km (0.11 R)
• M86: 52,125,882 km (0.09 R)
• M87: 52,221,625 km (0.041 R)
• M88: 56,296,521 km (0.077 R)
• M89: 58,371,892 km (0.116 R)
• M90: 59,569,124 km (0.119 R)
• M91: 60,472,246 km (0.041 R)
• M92: 63,515,366 km (0.044 R)
• M93: 64,335,312 km (0.092 R)
• M94: 65,778,483 km (0.115 R)
• M95: 66,504,182 km (0.109 R)
• M96: 66,815,944 km (0.089 R)
• M97: 69,432,860 km (0.115 R)
• M98: 69,749,259 km (0.107 R)

Kuiper Belt

Range: 30 - 45 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 514 - 19,604 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit