🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 1.68

Radius: 1.23

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.172

Orbit Range: 0.7 AU - 1 AU

Year: 297 Days

Day: 12.6 Hours

Environment

Temp: 34 °C

Axial Tilt: 1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (1)

Outer Limit: 93,915,101 km

• M1: 189,541 km (0.119 R)

Planet 2 - Terrestrial

Semi-Major Axis: 1.75 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.63

Radius: 0.83

Gravity: 0.91 G

Time & Orbit

Eccentricity (e): 0.167

Orbit Range: 1.46 AU - 2.04 AU

Year: 877 Days

Day: 40.8 Hours

Environment

Temp: -70 °C

Axial Tilt: 33.4 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Asteroid Belt

Center: 3.36 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 3 - Gas Giant

Semi-Major Axis: 4.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 518.5

Radius: 14.3

Gravity: 2.54 G

Time & Orbit

Eccentricity (e): 0.249

Orbit Range: 3.72 AU - 6.2 AU

Year: 4184 Days

Day: 5.7 Hours

Environment

Temp: -155 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (77)

Outer Limit: 93,915,101 km

• M1: 195,225 km (0.091 R)
• M2: 449,093 km (0.102 R)
• M3: 676,033 km (0.041 R)
• M4: 768,484 km (0.113 R)
• M5: 865,872 km (0.054 R)
• M6: 956,529 km (0.061 R)
• M7: 1,136,196 km (0.089 R)
• M8: 1,394,551 km (0.11 R)
• M9: 1,489,696 km (0.102 R)
• M10: 1,848,282 km (0.098 R)
• M11: 2,076,867 km (0.026 R)
• M12: 2,266,707 km (0.112 R)
• M13: 2,630,080 km (0.083 R)
• M14: 2,836,226 km (0.07 R)
• M15: 2,959,046 km (0.06 R)
• M16: 3,137,666 km (0.113 R)
• M17: 3,412,477 km (0.09 R)
• M18: 3,524,675 km (0.083 R)
• M19: 3,676,218 km (0.054 R)
• M20: 3,966,288 km (0.103 R)
• M21: 4,324,426 km (0.034 R)
• M22: 4,487,039 km (0.03 R)
• M23: 4,965,901 km (0.115 R)
• M24: 5,157,835 km (0.112 R)
• M25: 5,287,238 km (0.087 R)
• M26: 5,615,306 km (0.099 R)
• M27: 5,882,787 km (0.106 R)
• M28: 6,569,590 km (0.106 R)
• M29: 6,710,063 km (0.098 R)
• M30: 7,113,678 km (0.111 R)
• M31: 7,427,534 km (0.098 R)
• M32: 7,746,178 km (0.093 R)
• M33: 7,919,562 km (0.051 R)
• M34: 8,523,937 km (0.101 R)
• M35: 8,677,424 km (0.057 R)
• M36: 9,091,063 km (0.066 R)
• M37: 9,247,991 km (0.085 R)
• M38: 10,126,579 km (0.032 R)
• M39: 10,234,888 km (0.094 R)
• M40: 10,699,689 km (0.11 R)
• M41: 11,031,945 km (0.099 R)
• M42: 11,395,767 km (0.111 R)
• M43: 11,536,838 km (0.101 R)
• M44: 11,991,915 km (0.102 R)
• M45: 12,135,230 km (0.051 R)
• M46: 12,481,848 km (0.095 R)
• M47: 12,743,943 km (0.095 R)
• M48: 13,303,290 km (0.098 R)
• M49: 13,392,301 km (0.112 R)
• M50: 14,263,409 km (0.07 R)
• M51: 14,445,918 km (0.083 R)
• M52: 14,874,965 km (0.063 R)
• M53: 15,214,851 km (0.116 R)
• M54: 15,432,666 km (0.041 R)
• M55: 15,588,697 km (0.073 R)
• M56: 16,504,684 km (0.069 R)
• M57: 16,632,441 km (0.083 R)
• M58: 16,760,497 km (0.089 R)
• M59: 16,888,852 km (0.11 R)
• M60: 16,985,342 km (0.116 R)
• M61: 17,146,609 km (0.082 R)
• M62: 17,308,324 km (0.063 R)
• M63: 18,653,957 km (0.046 R)
• M64: 19,221,681 km (0.051 R)
• M65: 19,322,510 km (0.093 R)
• M66: 19,930,924 km (0.091 R)
• M67: 20,101,167 km (0.102 R)
• M68: 20,305,966 km (0.1 R)
• M69: 20,408,590 km (0.118 R)
• M70: 20,821,032 km (0.07 R)
• M71: 21,166,752 km (0.073 R)
• M72: 21,759,010 km (0.045 R)
• M73: 22,356,654 km (0.061 R)
• M74: 22,462,719 km (0.083 R)
• M75: 24,037,087 km (0.097 R)
• M76: 24,218,250 km (0.094 R)
• M77: 24,363,509 km (0.097 R)

Planet 4 - Gas Giant

Semi-Major Axis: 7.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 609.5

Radius: 8.2

Gravity: 9.06 G

Time & Orbit

Eccentricity (e): 0.132

Orbit Range: 6.32 AU - 8.24 AU

Year: 7440 Days

Day: 6.6 Hours

Environment

Temp: -159 °C

Axial Tilt: 13.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (81)

Outer Limit: 93,915,101 km

• M1: 105,317 km (0.062 R)
• M2: 171,290 km (0.04 R)
• M3: 260,300 km (0.077 R)
• M4: 370,704 km (0.115 R)
• M5: 438,621 km (0.118 R)
• M6: 549,623 km (0.054 R)
• M7: 684,709 km (0.081 R)
• M8: 831,315 km (0.049 R)
• M9: 908,508 km (0.117 R)
• M10: 1,004,699 km (0.026 R)
• M11: 1,535,921 km (0.071 R)
• M12: 1,871,469 km (0.094 R)
• M13: 2,405,683 km (0.076 R)
• M14: 2,609,136 km (0.079 R)
• M15: 2,794,787 km (0.097 R)
• M16: 3,057,182 km (0.107 R)
• M17: 3,580,326 km (0.104 R)
• M18: 3,812,951 km (0.05 R)
• M19: 4,430,042 km (0.103 R)
• M20: 4,512,769 km (0.114 R)
• M21: 4,991,632 km (0.038 R)
• M22: 5,135,545 km (0.106 R)
• M23: 5,251,783 km (0.099 R)
• M24: 5,635,352 km (0.085 R)
• M25: 6,398,301 km (0.08 R)
• M26: 6,554,780 km (0.077 R)
• M27: 7,193,414 km (0.075 R)
• M28: 8,053,003 km (0.113 R)
• M29: 8,289,966 km (0.099 R)
• M30: 9,119,935 km (0.082 R)
• M31: 9,225,551 km (0.075 R)
• M32: 10,048,788 km (0.07 R)
• M33: 10,267,351 km (0.099 R)
• M34: 10,857,963 km (0.072 R)
• M35: 11,879,567 km (0.052 R)
• M36: 12,499,351 km (0.113 R)
• M37: 13,010,676 km (0.066 R)
• M38: 13,209,193 km (0.072 R)
• M39: 14,503,214 km (0.101 R)
• M40: 14,874,367 km (0.06 R)
• M41: 15,165,185 km (0.106 R)
• M42: 15,710,469 km (0.063 R)
• M43: 15,879,515 km (0.108 R)
• M44: 16,006,673 km (0.119 R)
• M45: 16,347,457 km (0.112 R)
• M46: 17,122,972 km (0.045 R)
• M47: 17,602,882 km (0.12 R)
• M48: 17,866,474 km (0.11 R)
• M49: 18,308,685 km (0.109 R)
• M50: 18,486,706 km (0.067 R)
• M51: 18,620,447 km (0.036 R)
• M52: 19,158,999 km (0.105 R)
• M53: 19,976,252 km (0.084 R)
• M54: 20,804,875 km (0.098 R)
• M55: 20,944,151 km (0.117 R)
• M56: 21,597,893 km (0.082 R)
• M57: 22,116,250 km (0.097 R)
• M58: 22,925,275 km (0.099 R)
• M59: 23,021,168 km (0.118 R)
• M60: 23,744,174 km (0.11 R)
• M61: 24,181,449 km (0.072 R)
• M62: 24,278,986 km (0.041 R)
• M63: 24,670,484 km (0.075 R)
• M64: 25,014,858 km (0.099 R)
• M65: 26,207,303 km (0.034 R)
• M66: 26,357,798 km (0.114 R)
• M67: 27,266,007 km (0.107 R)
• M68: 27,774,939 km (0.116 R)
• M69: 27,979,439 km (0.094 R)
• M70: 28,544,321 km (0.091 R)
• M71: 29,216,763 km (0.108 R)
• M72: 29,476,764 km (0.06 R)
• M73: 30,261,555 km (0.118 R)
• M74: 31,371,571 km (0.088 R)
• M75: 32,172,668 km (0.114 R)
• M76: 33,142,810 km (0.102 R)
• M77: 33,686,000 km (0.111 R)
• M78: 33,904,113 km (0.101 R)
• M79: 34,891,160 km (0.08 R)
• M80: 36,277,932 km (0.101 R)
• M81: 36,557,381 km (0.094 R)

Planet 5 - Gas Giant

Semi-Major Axis: 10.84 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 643.5

Radius: 11.5

Gravity: 4.87 G

Time & Orbit

Eccentricity (e): 0.086

Orbit Range: 9.91 AU - 11.77 AU

Year: 13517 Days

Day: 7.3 Hours

Environment

Temp: -183 °C

Axial Tilt: 7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (88)

Outer Limit: 93,915,101 km

• M1: 200,312 km (0.117 R)
• M2: 984,354 km (0.116 R)
• M3: 1,792,930 km (0.109 R)
• M4: 1,872,517 km (0.072 R)
• M5: 1,953,299 km (0.106 R)
• M6: 2,857,469 km (0.069 R)
• M7: 3,014,247 km (0.118 R)
• M8: 4,155,679 km (0.119 R)
• M9: 5,417,836 km (0.089 R)
• M10: 5,691,601 km (0.043 R)
• M11: 5,770,738 km (0.109 R)
• M12: 6,540,269 km (0.085 R)
• M13: 6,958,395 km (0.106 R)
• M14: 7,128,039 km (0.074 R)
• M15: 8,398,873 km (0.096 R)
• M16: 8,670,543 km (0.066 R)
• M17: 9,129,808 km (0.09 R)
• M18: 9,269,084 km (0.097 R)
• M19: 9,597,003 km (0.047 R)
• M20: 9,786,094 km (0.11 R)
• M21: 9,881,089 km (0.103 R)
• M22: 10,024,105 km (0.048 R)
• M23: 11,044,960 km (0.034 R)
• M24: 11,743,882 km (0.025 R)
• M25: 11,895,574 km (0.09 R)
• M26: 12,611,848 km (0.116 R)
• M27: 13,027,431 km (0.114 R)
• M28: 13,872,211 km (0.095 R)
• M29: 14,139,841 km (0.11 R)
• M30: 15,725,579 km (0.044 R)
• M31: 15,948,629 km (0.107 R)
• M32: 16,794,755 km (0.088 R)
• M33: 17,655,541 km (0.097 R)
• M34: 18,120,491 km (0.101 R)
• M35: 18,943,728 km (0.028 R)
• M36: 19,599,266 km (0.052 R)
• M37: 19,779,232 km (0.064 R)
• M38: 20,262,134 km (0.062 R)
• M39: 20,626,854 km (0.107 R)
• M40: 20,871,147 km (0.073 R)
• M41: 20,993,668 km (0.049 R)
• M42: 21,177,972 km (0.069 R)
• M43: 22,923,331 km (0.108 R)
• M44: 23,749,410 km (0.037 R)
• M45: 23,941,344 km (0.08 R)
• M46: 25,692,537 km (0.096 R)
• M47: 26,021,353 km (0.038 R)
• M48: 26,153,298 km (0.078 R)
• M49: 27,619,058 km (0.09 R)
• M50: 27,753,696 km (0.087 R)
• M51: 28,294,193 km (0.112 R)
• M52: 28,906,348 km (0.1 R)
• M53: 29,522,990 km (0.036 R)
• M54: 29,867,364 km (0.071 R)
• M55: 30,490,739 km (0.081 R)
• M56: 31,468,959 km (0.087 R)
• M57: 31,820,813 km (0.118 R)
• M58: 32,528,411 km (0.077 R)
• M59: 32,812,797 km (0.102 R)
• M60: 34,247,740 km (0.099 R)
• M61: 36,364,400 km (0.096 R)
• M62: 36,512,053 km (0.068 R)
• M63: 37,029,961 km (0.084 R)
• M64: 38,297,952 km (0.114 R)
• M65: 38,748,990 km (0.037 R)
• M66: 38,899,635 km (0.073 R)
• M67: 39,959,985 km (0.088 R)
• M68: 40,493,750 km (0.042 R)
• M69: 40,570,195 km (0.094 R)
• M70: 40,646,789 km (0.111 R)
• M71: 40,953,165 km (0.11 R)
• M72: 41,414,375 km (0.082 R)
• M73: 42,109,257 km (0.117 R)
• M74: 42,885,970 km (0.113 R)
• M75: 43,119,791 km (0.081 R)
• M76: 43,275,971 km (0.104 R)
• M77: 43,981,176 km (0.071 R)
• M78: 44,059,714 km (0.081 R)
• M79: 46,599,138 km (0.028 R)
• M80: 46,759,507 km (0.061 R)
• M81: 48,210,307 km (0.102 R)
• M82: 49,921,557 km (0.077 R)
• M83: 50,331,904 km (0.114 R)
• M84: 51,321,345 km (0.082 R)
• M85: 51,404,072 km (0.05 R)
• M86: 52,984,723 km (0.104 R)
• M87: 55,173,490 km (0.1 R)
• M88: 55,682,721 km (0.085 R)

Planet 6 - Ice Giant

Semi-Major Axis: 13.79 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 321.6

Radius: 5.3

Gravity: 11.45 G

Time & Orbit

Eccentricity (e): 0.246

Orbit Range: 10.4 AU - 17.18 AU

Year: 19395 Days

Day: 23.2 Hours

Environment

Temp: -195 °C

Axial Tilt: 128.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (81)

Outer Limit: 93,915,101 km

• M1: 67,768 km (0.093 R)
• M2: 397,182 km (0.09 R)
• M3: 444,904 km (0.083 R)
• M4: 511,625 km (0.119 R)
• M5: 1,160,730 km (0.11 R)
• M6: 1,375,403 km (0.099 R)
• M7: 1,449,753 km (0.109 R)
• M8: 1,500,167 km (0.11 R)
• M9: 1,551,031 km (0.115 R)
• M10: 1,628,522 km (0.059 R)
• M11: 2,747,365 km (0.051 R)
• M12: 3,394,525 km (0.083 R)
• M13: 3,769,866 km (0.104 R)
• M14: 3,804,573 km (0.118 R)
• M15: 4,302,734 km (0.118 R)
• M16: 5,242,209 km (0.113 R)
• M17: 5,476,928 km (0.09 R)
• M18: 5,516,421 km (0.115 R)
• M19: 6,827,946 km (0.104 R)
• M20: 6,912,918 km (0.099 R)
• M21: 7,300,077 km (0.114 R)
• M22: 7,430,676 km (0.087 R)
• M23: 7,562,023 km (0.076 R)
• M24: 8,366,411 km (0.094 R)
• M25: 8,594,697 km (0.07 R)
• M26: 9,433,193 km (0.097 R)
• M27: 9,670,754 km (0.113 R)
• M28: 9,910,261 km (0.079 R)
• M29: 12,410,639 km (0.108 R)
• M30: 12,775,509 km (0.068 R)
• M31: 13,038,202 km (0.074 R)
• M32: 13,462,312 km (0.088 R)
• M33: 13,944,915 km (0.058 R)
• M34: 14,052,925 km (0.077 R)
• M35: 14,542,409 km (0.111 R)
• M36: 16,100,620 km (0.101 R)
• M37: 17,536,012 km (0.086 R)
• M38: 17,711,042 km (0.113 R)
• M39: 19,492,603 km (0.115 R)
• M40: 19,916,413 km (0.078 R)
• M41: 20,282,180 km (0.084 R)
• M42: 22,585,987 km (0.065 R)
• M43: 23,929,825 km (0.073 R)
• M44: 24,124,003 km (0.055 R)
• M45: 25,629,406 km (0.055 R)
• M46: 25,761,651 km (0.088 R)
• M47: 26,493,633 km (0.088 R)
• M48: 26,895,752 km (0.109 R)
• M49: 27,502,671 km (0.1 R)
• M50: 28,387,393 km (0.043 R)
• M51: 28,661,456 km (0.08 R)
• M52: 30,604,433 km (0.112 R)
• M53: 30,815,067 km (0.114 R)
• M54: 31,308,590 km (0.083 R)
• M55: 31,733,598 km (0.114 R)
• M56: 32,089,342 km (0.108 R)
• M57: 32,374,774 km (0.079 R)
• M58: 33,164,352 km (0.074 R)
• M59: 36,459,245 km (0.113 R)
• M60: 37,055,841 km (0.083 R)
• M61: 37,580,481 km (0.098 R)
• M62: 40,471,310 km (0.113 R)
• M63: 40,625,546 km (0.12 R)
• M64: 40,702,589 km (0.056 R)
• M65: 42,255,564 km (0.092 R)
• M66: 42,568,373 km (0.042 R)
• M67: 42,960,619 km (0.1 R)
• M68: 43,985,963 km (0.11 R)
• M69: 44,382,397 km (0.032 R)
• M70: 44,461,834 km (0.064 R)
• M71: 48,004,012 km (0.077 R)
• M72: 48,085,543 km (0.049 R)
• M73: 49,561,326 km (0.098 R)
• M74: 50,056,495 km (0.098 R)
• M75: 50,470,432 km (0.042 R)
• M76: 50,885,566 km (0.075 R)
• M77: 51,970,001 km (0.1 R)
• M78: 52,137,551 km (0.068 R)
• M79: 54,331,703 km (0.082 R)
• M80: 55,098,242 km (0.097 R)
• M81: 57,246,019 km (0.059 R)

Planet 7 - Ice Giant

Semi-Major Axis: 16.2 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 844.8

Radius: 4.4

Gravity: 43.64 G

Time & Orbit

Eccentricity (e): 0.16

Orbit Range: 13.61 AU - 18.79 AU

Year: 24696 Days

Day: 23 Hours

Environment

Temp: -192 °C

Axial Tilt: 104.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 93,915,101 km

• M1: 63,130 km (0.112 R)
• M2: 134,788 km (0.114 R)
• M3: 262,694 km (0.117 R)
• M4: 360,980 km (0.05 R)
• M5: 2,060,262 km (0.083 R)
• M6: 2,803,015 km (0.051 R)
• M7: 3,022,775 km (0.119 R)
• M8: 3,067,504 km (0.069 R)
• M9: 3,112,384 km (0.092 R)
• M10: 3,248,219 km (0.065 R)
• M11: 3,293,996 km (0.047 R)
• M12: 3,479,048 km (0.063 R)
• M13: 3,859,326 km (0.07 R)
• M14: 4,971,436 km (0.087 R)
• M15: 5,024,244 km (0.115 R)
• M16: 5,290,828 km (0.093 R)
• M17: 6,061,855 km (0.085 R)
• M18: 7,162,896 km (0.082 R)
• M19: 7,282,424 km (0.034 R)
• M20: 7,828,157 km (0.115 R)
• M21: 8,639,427 km (0.112 R)
• M22: 8,958,519 km (0.072 R)
• M23: 9,740,018 km (0.06 R)
• M24: 13,443,014 km (0.106 R)
• M25: 14,110,520 km (0.115 R)
• M26: 15,709,422 km (0.029 R)
• M27: 16,020,436 km (0.118 R)
• M28: 16,333,544 km (0.07 R)
• M29: 17,045,331 km (0.082 R)
• M30: 18,335,313 km (0.118 R)
• M31: 18,744,912 km (0.08 R)
• M32: 21,436,627 km (0.099 R)
• M33: 21,695,132 km (0.104 R)
• M34: 22,739,325 km (0.083 R)
• M35: 23,710,664 km (0.095 R)
• M36: 24,966,688 km (0.066 R)
• M37: 25,694,033 km (0.085 R)
• M38: 26,428,259 km (0.075 R)
• M39: 29,051,906 km (0.099 R)
• M40: 31,659,397 km (0.09 R)
• M41: 31,855,371 km (0.081 R)
• M42: 33,239,450 km (0.105 R)
• M43: 33,538,496 km (0.049 R)
• M44: 34,039,051 km (0.1 R)
• M45: 36,270,303 km (0.114 R)
• M46: 37,403,656 km (0.057 R)
• M47: 37,922,611 km (0.116 R)
• M48: 38,653,247 km (0.097 R)
• M49: 38,862,834 km (0.112 R)
• M50: 39,810,537 km (0.094 R)
• M51: 40,340,412 km (0.067 R)
• M52: 40,659,355 km (0.116 R)
• M53: 41,299,933 km (0.12 R)
• M54: 41,407,045 km (0.052 R)
• M55: 42,051,513 km (0.074 R)
• M56: 42,915,889 km (0.088 R)
• M57: 45,987,133 km (0.092 R)
• M58: 46,209,286 km (0.097 R)
• M59: 46,543,039 km (0.086 R)
• M60: 47,212,938 km (0.035 R)
• M61: 47,886,129 km (0.076 R)
• M62: 49,128,539 km (0.104 R)
• M63: 49,469,173 km (0.07 R)
• M64: 51,875,605 km (0.087 R)
• M65: 52,222,522 km (0.078 R)
• M66: 52,918,601 km (0.089 R)
• M67: 55,378,888 km (0.105 R)
• M68: 55,615,252 km (0.11 R)
• M69: 55,970,248 km (0.058 R)
• M70: 57,756,596 km (0.108 R)
• M71: 58,476,312 km (0.105 R)
• M72: 59,561,495 km (0.095 R)
• M73: 59,924,718 km (0.109 R)
• M74: 60,896,955 km (0.118 R)
• M75: 63,597,196 km (0.03 R)
• M76: 65,835,330 km (0.09 R)
• M77: 67,089,858 km (0.054 R)
• M78: 67,341,781 km (0.081 R)
• M79: 73,220,379 km (0.116 R)
• M80: 74,129,335 km (0.117 R)
• M81: 75,303,379 km (0.115 R)
• M82: 76,483,557 km (0.112 R)
• M83: 76,878,346 km (0.061 R)
• M84: 78,464,083 km (0.111 R)
• M85: 79,394,133 km (0.108 R)
• M86: 80,327,773 km (0.093 R)
• M87: 81,533,532 km (0.114 R)
• M88: 82,205,975 km (0.105 R)
• M89: 82,475,400 km (0.076 R)
• M90: 83,150,386 km (0.054 R)
• M91: 83,421,009 km (0.065 R)
• M92: 89,169,157 km (0.098 R)
• M93: 89,307,535 km (0.11 R)
• M94: 93,492,984 km (0.12 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: 543 - 14,354 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit