🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.63 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.42

Radius: 1.15

Gravity: 1.07 G

Time & Orbit

Eccentricity (e): 0.163

Orbit Range: 0.53 AU - 0.73 AU

Year: 183 Days

Day: 40.6 Hours

Environment

Temp: 178 °C

Axial Tilt: 46.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.25

Radius: 1.78

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.146

Orbit Range: 0.64 AU - 0.86 AU

Year: 237 Days

Day: 22.9 Hours

Environment

Temp: 177 °C

Axial Tilt: 34.4 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 0.79 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.66

Radius: 1.68

Gravity: 1.3 G

Time & Orbit

Eccentricity (e): 0.111

Orbit Range: 0.7 AU - 0.88 AU

Year: 256 Days

Day: 31.5 Hours

Environment

Temp: 154 °C

Axial Tilt: 48 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 4 - Terrestrial

Semi-Major Axis: 2.33 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.22

Radius: 1.78

Gravity: 1.33 G

Time & Orbit

Eccentricity (e): 0.203

Orbit Range: 1.86 AU - 2.8 AU

Year: 1299 Days

Day: 18.7 Hours

Environment

Temp: -72 °C

Axial Tilt: 35.2 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Satellites (1)

Outer Limit: 41,521,083 km

• M1: 2,220,780 km (0.109 R)

Planet 5 - Terrestrial

Semi-Major Axis: 4.2 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.32

Radius: 1.62

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.166

Orbit Range: 3.5 AU - 4.9 AU

Year: 3144 Days

Day: 14.5 Hours

Environment

Temp: -129 °C

Axial Tilt: 34.9 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 8.32 AU

Composition

Type: Far Outer (Icy/Cometary)

A dense region of planetesimals and debris.

Boundary

Planet 6 - Ice Giant

Semi-Major Axis: 12.43 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 911.3

Radius: 7.8

Gravity: 14.98 G

Time & Orbit

Eccentricity (e): 0.08

Orbit Range: 11.44 AU - 13.42 AU

Year: 16007 Days

Day: 23.2 Hours

Environment

Temp: -188 °C

Axial Tilt: 35.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (91)

Outer Limit: 41,521,083 km

• M1: 148,551 km (0.05 R)
• M2: 229,334 km (0.069 R)
• M3: 739,313 km (0.075 R)
• M4: 1,236,127 km (0.099 R)
• M5: 1,977,534 km (0.112 R)
• M6: 2,173,208 km (0.091 R)
• M7: 2,797,181 km (0.078 R)
• M8: 3,204,686 km (0.05 R)
• M9: 3,870,695 km (0.066 R)
• M10: 3,992,618 km (0.07 R)
• M11: 4,198,763 km (0.103 R)
• M12: 4,664,312 km (0.109 R)
• M13: 5,102,035 km (0.081 R)
• M14: 5,370,863 km (0.082 R)
• M15: 5,969,254 km (0.116 R)
• M16: 6,685,978 km (0.059 R)
• M17: 7,278,684 km (0.118 R)
• M18: 7,888,296 km (0.095 R)
• M19: 8,726,343 km (0.111 R)
• M20: 9,373,503 km (0.102 R)
• M21: 9,813,321 km (0.09 R)
• M22: 9,980,123 km (0.077 R)
• M23: 10,429,216 km (0.12 R)
• M24: 11,816,137 km (0.086 R)
• M25: 12,772,517 km (0.114 R)
• M26: 12,833,104 km (0.115 R)
• M27: 13,137,535 km (0.111 R)
• M28: 14,253,236 km (0.112 R)
• M29: 14,886,035 km (0.118 R)
• M30: 15,077,670 km (0.062 R)
• M31: 16,706,342 km (0.068 R)
• M32: 19,635,469 km (0.063 R)
• M33: 20,551,905 km (0.072 R)
• M34: 23,383,344 km (0.105 R)
• M35: 24,579,977 km (0.095 R)
• M36: 24,806,618 km (0.055 R)
• M37: 26,799,112 km (0.116 R)
• M38: 27,110,126 km (0.09 R)
• M39: 29,802,439 km (0.036 R)
• M40: 29,963,406 km (0.086 R)
• M41: 31,671,365 km (0.099 R)
• M42: 32,744,431 km (0.068 R)
• M43: 33,076,987 km (0.06 R)
• M44: 33,410,740 km (0.106 R)
• M45: 35,265,903 km (0.087 R)
• M46: 36,377,714 km (0.117 R)
• M47: 36,894,874 km (0.079 R)
• M48: 37,067,660 km (0.105 R)
• M49: 38,110,656 km (0.071 R)
• M50: 38,460,565 km (0.061 R)
• M51: 39,428,015 km (0.088 R)
• M52: 39,516,427 km (0.057 R)
• M53: 40,314,532 km (0.111 R)
• M54: 41,118,022 km (0.052 R)
• M55: 41,566,666 km (0.099 R)
• M56: 42,831,366 km (0.117 R)
• M57: 43,195,039 km (0.107 R)
• M58: 43,468,504 km (0.106 R)
• M59: 44,384,192 km (0.117 R)
• M60: 44,752,203 km (0.096 R)
• M61: 45,028,959 km (0.044 R)
• M62: 46,141,369 km (0.038 R)
• M63: 46,327,618 km (0.106 R)
• M64: 46,607,516 km (0.094 R)
• M65: 47,262,904 km (0.11 R)
• M66: 47,544,597 km (0.056 R)
• M67: 49,056,882 km (0.115 R)
• M68: 49,151,876 km (0.065 R)
• M69: 50,297,048 km (0.073 R)
• M70: 51,065,383 km (0.111 R)
• M71: 51,644,327 km (0.08 R)
• M72: 52,031,336 km (0.07 R)
• M73: 52,225,215 km (0.057 R)
• M74: 53,393,724 km (0.098 R)
• M75: 53,687,235 km (0.113 R)
• M76: 54,177,467 km (0.111 R)
• M77: 54,767,780 km (0.119 R)
• M78: 55,459,222 km (0.087 R)
• M79: 58,354,240 km (0.047 R)
• M80: 59,363,876 km (0.114 R)
• M81: 62,118,721 km (0.092 R)
• M82: 62,839,633 km (0.088 R)
• M83: 63,459,866 km (0.084 R)
• M84: 65,019,124 km (0.067 R)
• M85: 65,960,843 km (0.085 R)
• M86: 66,275,746 km (0.076 R)
• M87: 66,591,099 km (0.035 R)
• M88: 66,801,583 km (0.092 R)
• M89: 68,387,769 km (0.092 R)
• M90: 69,238,682 km (0.12 R)
• M91: 71,489,082 km (0.06 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.57 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 39.7

Radius: 5.6

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.033

Orbit Range: 16.02 AU - 17.12 AU

Year: 24636 Days

Day: 21.9 Hours

Environment

Temp: -204 °C

Axial Tilt: 43.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (78)

Outer Limit: 41,521,083 km

• M1: 493,374 km (0.088 R)
• M2: 642,224 km (0.102 R)
• M3: 921,224 km (0.09 R)
• M4: 966,253 km (0.11 R)
• M5: 1,153,549 km (0.028 R)
• M6: 1,597,855 km (0.101 R)
• M7: 1,670,709 km (0.099 R)
• M8: 2,050,987 km (0.117 R)
• M9: 2,190,262 km (0.109 R)
• M10: 2,374,118 km (0.059 R)
• M11: 2,626,789 km (0.112 R)
• M12: 2,778,332 km (0.094 R)
• M13: 3,697,461 km (0.112 R)
• M14: 3,770,016 km (0.053 R)
• M15: 3,867,404 km (0.103 R)
• M16: 4,139,373 km (0.113 R)
• M17: 4,265,185 km (0.092 R)
• M18: 4,315,899 km (0.069 R)
• M19: 4,728,190 km (0.066 R)
• M20: 4,780,699 km (0.081 R)
• M21: 5,019,009 km (0.097 R)
• M22: 5,099,343 km (0.093 R)
• M23: 5,452,394 km (0.064 R)
• M24: 5,869,622 km (0.082 R)
• M25: 6,529,049 km (0.03 R)
• M26: 6,675,506 km (0.093 R)
• M27: 6,912,170 km (0.096 R)
• M28: 7,515,647 km (0.091 R)
• M29: 8,676,078 km (0.04 R)
• M30: 8,901,971 km (0.094 R)
• M31: 8,966,747 km (0.113 R)
• M32: 9,227,795 km (0.117 R)
• M33: 9,590,869 km (0.087 R)
• M34: 9,891,262 km (0.092 R)
• M35: 11,019,379 km (0.077 R)
• M36: 11,369,139 km (0.09 R)
• M37: 11,545,365 km (0.116 R)
• M38: 12,694,875 km (0.109 R)
• M39: 12,767,879 km (0.066 R)
• M40: 13,283,094 km (0.1 R)
• M41: 13,394,395 km (0.118 R)
• M42: 14,106,481 km (0.094 R)
• M43: 14,182,177 km (0.078 R)
• M44: 15,762,978 km (0.105 R)
• M45: 15,959,550 km (0.098 R)
• M46: 16,794,007 km (0.038 R)
• M47: 17,561,144 km (0.101 R)
• M48: 17,724,057 km (0.063 R)
• M49: 18,546,396 km (0.085 R)
• M50: 19,760,832 km (0.085 R)
• M51: 20,441,651 km (0.077 R)
• M52: 20,613,091 km (0.078 R)
• M53: 20,699,109 km (0.115 R)
• M54: 21,043,783 km (0.032 R)
• M55: 21,173,634 km (0.054 R)
• M56: 21,260,251 km (0.094 R)
• M57: 21,477,467 km (0.084 R)
• M58: 22,441,775 km (0.053 R)
• M59: 22,884,884 km (0.071 R)
• M60: 22,929,314 km (0.109 R)
• M61: 23,914,716 km (0.07 R)
• M62: 24,050,102 km (0.101 R)
• M63: 24,412,577 km (0.11 R)
• M64: 25,234,618 km (0.039 R)
• M65: 26,391,308 km (0.068 R)
• M66: 26,437,983 km (0.095 R)
• M67: 26,484,508 km (0.111 R)
• M68: 27,140,644 km (0.103 R)
• M69: 28,134,722 km (0.064 R)
• M70: 28,852,044 km (0.109 R)
• M71: 29,381,919 km (0.078 R)
• M72: 29,575,499 km (0.1 R)
• M73: 29,672,289 km (0.074 R)
• M74: 30,060,944 km (0.111 R)
• M75: 30,207,101 km (0.109 R)
• M76: 32,378,215 km (0.099 R)
• M77: 32,678,009 km (0.082 R)
• M78: 32,928,735 km (0.056 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.69 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 390.4

Radius: 5.5

Gravity: 12.91 G

Time & Orbit

Eccentricity (e): 0.045

Orbit Range: 15.94 AU - 17.44 AU

Year: 24904 Days

Day: 18.8 Hours

Environment

Temp: -187 °C

Axial Tilt: 19.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (92)

Outer Limit: 41,521,083 km

• M1: 70,760 km (0.115 R)
• M2: 111,151 km (0.107 R)
• M3: 883,974 km (0.088 R)
• M4: 933,341 km (0.119 R)
• M5: 3,808,014 km (0.057 R)
• M6: 6,109,876 km (0.055 R)
• M7: 6,544,159 km (0.04 R)
• M8: 6,888,982 km (0.031 R)
• M9: 7,290,054 km (0.08 R)
• M10: 7,544,669 km (0.115 R)
• M11: 7,698,755 km (0.036 R)
• M12: 7,750,366 km (0.108 R)
• M13: 7,853,888 km (0.11 R)
• M14: 8,325,720 km (0.107 R)
• M15: 8,431,785 km (0.102 R)
• M16: 9,132,352 km (0.091 R)
• M17: 9,517,117 km (0.049 R)
• M18: 10,019,766 km (0.036 R)
• M19: 10,588,388 km (0.077 R)
• M20: 12,659,421 km (0.109 R)
• M21: 14,023,155 km (0.101 R)
• M22: 16,619,575 km (0.094 R)
• M23: 16,820,186 km (0.112 R)
• M24: 16,954,375 km (0.113 R)
• M25: 17,630,707 km (0.059 R)
• M26: 20,066,310 km (0.118 R)
• M27: 20,494,310 km (0.079 R)
• M28: 20,637,625 km (0.115 R)
• M29: 21,723,256 km (0.066 R)
• M30: 23,199,488 km (0.1 R)
• M31: 24,100,666 km (0.072 R)
• M32: 24,631,589 km (0.073 R)
• M33: 25,166,401 km (0.086 R)
• M34: 26,169,754 km (0.045 R)
• M35: 26,481,067 km (0.113 R)
• M36: 26,871,966 km (0.113 R)
• M37: 26,950,356 km (0.115 R)
• M38: 27,107,433 km (0.11 R)
• M39: 27,422,337 km (0.105 R)
• M40: 27,817,874 km (0.082 R)
• M41: 28,056,033 km (0.104 R)
• M42: 28,454,562 km (0.117 R)
• M43: 28,694,517 km (0.08 R)
• M44: 28,774,702 km (0.11 R)
• M45: 29,015,554 km (0.1 R)
• M46: 29,418,571 km (0.075 R)
• M47: 29,580,286 km (0.112 R)
• M48: 31,626,486 km (0.083 R)
• M49: 31,709,213 km (0.092 R)
• M50: 31,792,091 km (0.091 R)
• M51: 32,624,752 km (0.113 R)
• M52: 33,211,774 km (0.064 R)
• M53: 36,981,192 km (0.117 R)
• M54: 39,182,375 km (0.076 R)
• M55: 39,449,407 km (0.093 R)
• M56: 39,538,418 km (0.092 R)
• M57: 40,164,336 km (0.114 R)
• M58: 40,343,703 km (0.088 R)
• M59: 41,064,017 km (0.111 R)
• M60: 42,517,211 km (0.12 R)
• M61: 42,791,573 km (0.111 R)
• M62: 44,450,015 km (0.119 R)
• M63: 44,635,517 km (0.075 R)
• M64: 46,882,327 km (0.068 R)
• M65: 48,209,859 km (0.071 R)
• M66: 49,165,789 km (0.057 R)
• M67: 49,645,998 km (0.049 R)
• M68: 50,031,362 km (0.08 R)
• M69: 50,611,054 km (0.104 R)
• M70: 50,804,933 km (0.095 R)
• M71: 51,777,469 km (0.089 R)
• M72: 53,346,301 km (0.109 R)
• M73: 55,329,221 km (0.094 R)
• M74: 55,528,934 km (0.034 R)
• M75: 55,728,797 km (0.076 R)
• M76: 56,028,891 km (0.105 R)
• M77: 56,631,022 km (0.11 R)
• M78: 57,841,568 km (0.03 R)
• M79: 59,162,667 km (0.12 R)
• M80: 59,264,692 km (0.112 R)
• M81: 61,214,551 km (0.087 R)
• M82: 61,731,113 km (0.093 R)
• M83: 62,664,603 km (0.048 R)
• M84: 64,230,743 km (0.09 R)
• M85: 64,335,611 km (0.088 R)
• M86: 65,071,334 km (0.114 R)
• M87: 67,614,647 km (0.086 R)
• M88: 68,469,749 km (0.081 R)
• M89: 70,190,423 km (0.072 R)
• M90: 70,298,433 km (0.086 R)
• M91: 71,925,310 km (0.119 R)
• M92: 73,016,776 km (0.051 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.71 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 101.9

Radius: 8

Gravity: 1.59 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 16.49 AU - 18.93 AU

Year: 27222 Days

Day: 19.2 Hours

Environment

Temp: -190 °C

Axial Tilt: 22.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (60)

Outer Limit: 41,521,083 km

• M1: 107,561 km (0.112 R)
• M2: 208,988 km (0.07 R)
• M3: 271,819 km (0.103 R)
• M4: 343,477 km (0.037 R)
• M5: 465,549 km (0.108 R)
• M6: 555,606 km (0.092 R)
• M7: 685,457 km (0.101 R)
• M8: 937,380 km (0.118 R)
• M9: 1,500,915 km (0.072 R)
• M10: 1,569,282 km (0.084 R)
• M11: 2,077,166 km (0.117 R)
• M12: 2,577,871 km (0.064 R)
• M13: 3,115,076 km (0.115 R)
• M14: 3,810,557 km (0.075 R)
• M15: 3,999,798 km (0.098 R)
• M16: 7,032,297 km (0.072 R)
• M17: 7,617,972 km (0.098 R)
• M18: 8,464,098 km (0.086 R)
• M19: 8,628,656 km (0.057 R)
• M20: 9,002,800 km (0.107 R)
• M21: 9,212,985 km (0.06 R)
• M22: 9,297,508 km (0.094 R)
• M23: 10,244,163 km (0.111 R)
• M24: 10,331,678 km (0.107 R)
• M25: 11,766,621 km (0.119 R)
• M26: 12,367,106 km (0.111 R)
• M27: 13,406,213 km (0.083 R)
• M28: 14,571,281 km (0.036 R)
• M29: 14,818,118 km (0.068 R)
• M30: 15,166,083 km (0.078 R)
• M31: 15,315,980 km (0.091 R)
• M32: 15,869,791 km (0.047 R)
• M33: 16,893,788 km (0.103 R)
• M34: 17,205,102 km (0.111 R)
• M35: 19,220,334 km (0.103 R)
• M36: 20,974,669 km (0.077 R)
• M37: 21,645,615 km (0.037 R)
• M38: 23,758,386 km (0.093 R)
• M39: 24,574,741 km (0.035 R)
• M40: 25,281,891 km (0.038 R)
• M41: 26,415,244 km (0.113 R)
• M42: 26,595,659 km (0.119 R)
• M43: 26,957,686 km (0.116 R)
• M44: 27,809,047 km (0.101 R)
• M45: 28,854,587 km (0.091 R)
• M46: 29,413,335 km (0.049 R)
• M47: 30,604,732 km (0.084 R)
• M48: 34,731,838 km (0.086 R)
• M49: 35,193,797 km (0.112 R)
• M50: 35,591,278 km (0.073 R)
• M51: 37,331,101 km (0.083 R)
• M52: 38,279,402 km (0.083 R)
• M53: 38,824,836 km (0.075 R)
• M54: 40,823,464 km (0.041 R)
• M55: 42,221,157 km (0.091 R)
• M56: 42,361,779 km (0.114 R)
• M57: 45,855,936 km (0.115 R)
• M58: 46,000,448 km (0.101 R)
• M59: 48,260,572 km (0.105 R)
• M60: 49,293,097 km (0.054 R)

Planet 10 - Ice Giant

Semi-Major Axis: 19.06 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 48.2

Radius: 7.2

Gravity: 0.93 G

Time & Orbit

Eccentricity (e): 0.024

Orbit Range: 18.6 AU - 19.52 AU

Year: 30393 Days

Day: 20.6 Hours

Environment

Temp: -190 °C

Axial Tilt: 25.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (66)

Outer Limit: 41,521,083 km

• M1: 315,652 km (0.112 R)
• M2: 484,996 km (0.077 R)
• M3: 609,462 km (0.051 R)
• M4: 873,352 km (0.072 R)
• M5: 1,459,178 km (0.086 R)
• M6: 1,684,322 km (0.06 R)
• M7: 2,190,412 km (0.087 R)
• M8: 2,377,110 km (0.059 R)
• M9: 2,448,468 km (0.095 R)
• M10: 2,741,231 km (0.119 R)
• M11: 2,917,009 km (0.087 R)
• M12: 3,878,923 km (0.093 R)
• M13: 4,162,411 km (0.098 R)
• M14: 4,364,817 km (0.089 R)
• M15: 4,839,641 km (0.117 R)
• M16: 4,991,333 km (0.084 R)
• M17: 5,677,688 km (0.06 R)
• M18: 5,773,580 km (0.027 R)
• M19: 5,902,234 km (0.12 R)
• M20: 6,360,153 km (0.08 R)
• M21: 6,593,377 km (0.083 R)
• M22: 6,863,401 km (0.095 R)
• M23: 8,485,341 km (0.108 R)
• M24: 8,964,353 km (0.026 R)
• M25: 10,180,434 km (0.102 R)
• M26: 10,453,301 km (0.06 R)
• M27: 11,568,852 km (0.116 R)
• M28: 11,894,527 km (0.054 R)
• M29: 12,099,476 km (0.06 R)
• M30: 12,347,210 km (0.075 R)
• M31: 14,913,861 km (0.087 R)
• M32: 16,759,150 km (0.033 R)
• M33: 17,127,610 km (0.06 R)
• M34: 18,107,177 km (0.079 R)
• M35: 18,390,515 km (0.111 R)
• M36: 18,818,066 km (0.116 R)
• M37: 18,961,381 km (0.094 R)
• M38: 19,200,887 km (0.104 R)
• M39: 19,877,069 km (0.097 R)
• M40: 20,218,152 km (0.113 R)
• M41: 21,551,518 km (0.112 R)
• M42: 23,015,184 km (0.081 R)
• M43: 24,771,612 km (0.11 R)
• M44: 25,454,526 km (0.106 R)
• M45: 27,974,652 km (0.117 R)
• M46: 28,850,548 km (0.113 R)
• M47: 28,905,600 km (0.072 R)
• M48: 29,236,660 km (0.095 R)
• M49: 29,624,418 km (0.073 R)
• M50: 29,791,070 km (0.116 R)
• M51: 29,846,720 km (0.062 R)
• M52: 29,902,520 km (0.071 R)
• M53: 30,349,070 km (0.035 R)
• M54: 31,418,694 km (0.114 R)
• M55: 32,100,561 km (0.077 R)
• M56: 33,478,956 km (0.108 R)
• M57: 34,291,871 km (0.098 R)
• M58: 34,759,215 km (0.099 R)
• M59: 35,996,389 km (0.067 R)
• M60: 36,352,432 km (0.035 R)
• M61: 36,590,442 km (0.088 R)
• M62: 37,367,753 km (0.093 R)
• M63: 37,547,869 km (0.074 R)
• M64: 38,695,434 km (0.073 R)
• M65: 40,222,828 km (0.038 R)
• M66: 40,901,105 km (0.104 R)

Kuiper Belt

Range: 30 - 49 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 366 - 14,294 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit