🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.6 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.21

Radius: 1.59

Gravity: 1.27 G

Time & Orbit

Eccentricity (e): 0.145

Orbit Range: 0.51 AU - 0.69 AU

Year: 174 Days

Day: 47.4 Hours

Environment

Temp: 177 °C

Axial Tilt: 24.6 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Satellites (1)

Outer Limit: 63,464,345 km

• M1: 114,592 km (0.117 R)

Planet 2 - Terrestrial

Semi-Major Axis: 0.75 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.18

Radius: 1.37

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.092

Orbit Range: 0.68 AU - 0.82 AU

Year: 243 Days

Day: 33.5 Hours

Environment

Temp: 156 °C

Axial Tilt: 26.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.01 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.61

Radius: 1.67

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 0.99 AU - 1.03 AU

Year: 380 Days

Day: 45.3 Hours

Environment

Temp: 19 °C

Axial Tilt: 47.8 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.15 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.29

Radius: 1.79

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.182

Orbit Range: 0.94 AU - 1.36 AU

Year: 462 Days

Day: 25.1 Hours

Environment

Temp: -11 °C

Axial Tilt: 6.8 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Planet 5 - Terrestrial

Semi-Major Axis: 4.19 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.3

Radius: 0.62

Gravity: 0.78 G

Time & Orbit

Eccentricity (e): 0.012

Orbit Range: 4.14 AU - 4.24 AU

Year: 3214 Days

Day: 36.2 Hours

Environment

Temp: -131 °C

Axial Tilt: 107.7 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 6.62 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.1

Radius: 10.2

Gravity: 1.35 G

Time & Orbit

Eccentricity (e): 0.128

Orbit Range: 5.77 AU - 7.47 AU

Year: 6383 Days

Day: 10.9 Hours

Environment

Temp: -164 °C

Axial Tilt: 7.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (71)

Outer Limit: 63,464,345 km

• M1: 141,669 km (0.067 R)
• M2: 268,977 km (0.088 R)
• M3: 366,515 km (0.056 R)
• M4: 571,464 km (0.083 R)
• M5: 717,023 km (0.096 R)
• M6: 794,813 km (0.082 R)
• M7: 875,746 km (0.098 R)
• M8: 1,159,084 km (0.054 R)
• M9: 1,311,674 km (0.106 R)
• M10: 1,836,613 km (0.114 R)
• M11: 2,058,317 km (0.069 R)
• M12: 2,422,139 km (0.099 R)
• M13: 2,712,359 km (0.04 R)
• M14: 3,127,792 km (0.056 R)
• M15: 3,326,309 km (0.083 R)
• M16: 3,427,138 km (0.115 R)
• M17: 3,735,908 km (0.099 R)
• M18: 4,000,097 km (0.032 R)
• M19: 4,107,509 km (0.107 R)
• M20: 4,602,977 km (0.114 R)
• M21: 4,734,473 km (0.055 R)
• M22: 5,214,533 km (0.118 R)
• M23: 5,312,370 km (0.106 R)
• M24: 5,430,702 km (0.07 R)
• M25: 5,872,016 km (0.058 R)
• M26: 6,345,792 km (0.07 R)
• M27: 6,597,864 km (0.115 R)
• M28: 6,789,051 km (0.094 R)
• M29: 6,939,097 km (0.051 R)
• M30: 7,112,032 km (0.066 R)
• M31: 7,952,324 km (0.034 R)
• M32: 8,269,920 km (0.048 R)
• M33: 8,637,931 km (0.116 R)
• M34: 9,342,387 km (0.072 R)
• M35: 9,413,745 km (0.057 R)
• M36: 9,509,338 km (0.12 R)
• M37: 9,725,657 km (0.101 R)
• M38: 9,798,062 km (0.07 R)
• M39: 9,943,471 km (0.11 R)
• M40: 10,408,721 km (0.088 R)
• M41: 10,532,438 km (0.104 R)
• M42: 10,731,254 km (0.075 R)
• M43: 10,906,283 km (0.071 R)
• M44: 11,259,035 km (0.114 R)
• M45: 11,360,612 km (0.063 R)
• M46: 11,615,676 km (0.107 R)
• M47: 11,821,224 km (0.107 R)
• M48: 11,976,058 km (0.108 R)
• M49: 12,261,789 km (0.062 R)
• M50: 12,681,411 km (0.107 R)
• M51: 14,544,503 km (0.087 R)
• M52: 14,877,209 km (0.108 R)
• M53: 14,988,659 km (0.084 R)
• M54: 15,437,303 km (0.064 R)
• M55: 15,720,043 km (0.067 R)
• M56: 16,032,853 km (0.1 R)
• M57: 16,233,164 km (0.099 R)
• M58: 16,376,629 km (0.107 R)
• M59: 17,013,018 km (0.071 R)
• M60: 17,158,876 km (0.102 R)
• M61: 17,451,639 km (0.08 R)
• M62: 17,539,752 km (0.113 R)
• M63: 17,716,577 km (0.088 R)
• M64: 18,609,377 km (0.11 R)
• M65: 18,729,504 km (0.114 R)
• M66: 18,880,149 km (0.119 R)
• M67: 19,091,531 km (0.063 R)
• M68: 19,486,319 km (0.11 R)
• M69: 19,577,724 km (0.06 R)
• M70: 20,253,009 km (0.101 R)
• M71: 20,873,540 km (0.075 R)

Planet 7 - Gas Giant

Semi-Major Axis: 9.44 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 519.1

Radius: 11.2

Gravity: 4.14 G

Time & Orbit

Eccentricity (e): 0.131

Orbit Range: 8.2 AU - 10.68 AU

Year: 10869 Days

Day: 10.3 Hours

Environment

Temp: -186 °C

Axial Tilt: 25.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (76)

Outer Limit: 63,464,345 km

• M1: 166,203 km (0.082 R)
• M2: 241,301 km (0.086 R)
• M3: 608,564 km (0.112 R)
• M4: 685,457 km (0.101 R)
• M5: 1,010,683 km (0.052 R)
• M6: 1,403,677 km (0.114 R)
• M7: 1,728,753 km (0.115 R)
• M8: 2,006,257 km (0.09 R)
• M9: 2,101,850 km (0.073 R)
• M10: 2,174,704 km (0.077 R)
• M11: 2,348,088 km (0.079 R)
• M12: 2,788,205 km (0.093 R)
• M13: 2,949,920 km (0.095 R)
• M14: 3,282,476 km (0.096 R)
• M15: 3,568,956 km (0.116 R)
• M16: 3,774,504 km (0.116 R)
• M17: 4,074,747 km (0.089 R)
• M18: 4,258,752 km (0.12 R)
• M19: 4,762,897 km (0.088 R)
• M20: 6,174,951 km (0.105 R)
• M21: 6,315,873 km (0.119 R)
• M22: 7,109,938 km (0.085 R)
• M23: 7,481,390 km (0.107 R)
• M24: 7,594,037 km (0.112 R)
• M25: 7,745,131 km (0.052 R)
• M26: 8,088,906 km (0.091 R)
• M27: 8,594,098 km (0.098 R)
• M28: 8,830,762 km (0.088 R)
• M29: 10,170,710 km (0.08 R)
• M30: 10,631,472 km (0.09 R)
• M31: 10,800,667 km (0.069 R)
• M32: 10,970,760 km (0.1 R)
• M33: 13,080,838 km (0.031 R)
• M34: 14,135,353 km (0.101 R)
• M35: 14,228,403 km (0.059 R)
• M36: 14,461,776 km (0.061 R)
• M37: 15,360,261 km (0.117 R)
• M38: 15,455,854 km (0.096 R)
• M39: 15,888,640 km (0.077 R)
• M40: 16,276,697 km (0.12 R)
• M41: 16,618,827 km (0.12 R)
• M42: 17,161,269 km (0.081 R)
• M43: 18,010,985 km (0.092 R)
• M44: 18,212,942 km (0.112 R)
• M45: 18,466,511 km (0.042 R)
• M46: 19,079,563 km (0.05 R)
• M47: 19,233,948 km (0.088 R)
• M48: 19,647,586 km (0.102 R)
• M49: 22,732,892 km (0.073 R)
• M50: 23,060,661 km (0.04 R)
• M51: 24,164,245 km (0.036 R)
• M52: 24,498,746 km (0.081 R)
• M53: 25,059,439 km (0.118 R)
• M54: 25,624,619 km (0.108 R)
• M55: 29,043,080 km (0.102 R)
• M56: 29,280,043 km (0.062 R)
• M57: 29,398,824 km (0.098 R)
• M58: 29,517,605 km (0.085 R)
• M59: 30,174,190 km (0.079 R)
• M60: 31,319,661 km (0.101 R)
• M61: 31,745,267 km (0.083 R)
• M62: 32,725,282 km (0.097 R)
• M63: 33,218,955 km (0.1 R)
• M64: 34,777,765 km (0.043 R)
• M65: 35,029,389 km (0.104 R)
• M66: 36,041,867 km (0.113 R)
• M67: 36,169,025 km (0.113 R)
• M68: 37,836,742 km (0.082 R)
• M69: 38,095,547 km (0.119 R)
• M70: 38,225,098 km (0.076 R)
• M71: 38,614,801 km (0.118 R)
• M72: 39,529,442 km (0.084 R)
• M73: 39,791,986 km (0.113 R)
• M74: 40,715,604 km (0.102 R)
• M75: 44,003,765 km (0.079 R)
• M76: 44,685,183 km (0.063 R)

Planet 8 - Ice Giant

Semi-Major Axis: 16.42 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 813.5

Radius: 6.9

Gravity: 17.09 G

Time & Orbit

Eccentricity (e): 0.058

Orbit Range: 15.47 AU - 17.37 AU

Year: 24934 Days

Day: 22.4 Hours

Environment

Temp: -207 °C

Axial Tilt: 34.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (98)

Outer Limit: 63,464,345 km

• M1: 257,159 km (0.095 R)
• M2: 390,151 km (0.078 R)
• M3: 522,695 km (0.028 R)
• M4: 722,707 km (0.083 R)
• M5: 803,939 km (0.059 R)
• M6: 1,066,483 km (0.086 R)
• M7: 1,354,758 km (0.1 R)
• M8: 2,520,126 km (0.079 R)
• M9: 3,349,646 km (0.12 R)
• M10: 3,441,499 km (0.098 R)
• M11: 4,010,719 km (0.067 R)
• M12: 4,108,406 km (0.104 R)
• M13: 4,306,175 km (0.09 R)
• M14: 4,608,811 km (0.082 R)
• M15: 5,128,365 km (0.094 R)
• M16: 6,506,909 km (0.089 R)
• M17: 6,564,355 km (0.04 R)
• M18: 7,385,796 km (0.096 R)
• M19: 8,301,485 km (0.113 R)
• M20: 9,188,152 km (0.057 R)
• M21: 9,642,630 km (0.107 R)
• M22: 9,708,154 km (0.113 R)
• M23: 9,839,650 km (0.09 R)
• M24: 9,905,623 km (0.099 R)
• M25: 10,104,439 km (0.034 R)
• M26: 11,325,008 km (0.087 R)
• M27: 11,812,098 km (0.073 R)
• M28: 12,663,011 km (0.111 R)
• M29: 14,423,180 km (0.11 R)
• M30: 15,255,392 km (0.114 R)
• M31: 15,793,047 km (0.118 R)
• M32: 16,180,805 km (0.116 R)
• M33: 16,336,835 km (0.07 R)
• M34: 17,522,698 km (0.082 R)
• M35: 17,843,735 km (0.077 R)
• M36: 19,726,274 km (0.108 R)
• M37: 19,809,600 km (0.107 R)
• M38: 20,564,471 km (0.075 R)
• M39: 21,243,197 km (0.096 R)
• M40: 23,853,530 km (0.11 R)
• M41: 24,835,640 km (0.064 R)
• M42: 25,196,171 km (0.1 R)
• M43: 26,287,787 km (0.108 R)
• M44: 27,860,659 km (0.106 R)
• M45: 28,141,304 km (0.105 R)
• M46: 29,083,771 km (0.059 R)
• M47: 29,463,600 km (0.083 R)
• M48: 30,806,091 km (0.086 R)
• M49: 31,777,280 km (0.112 R)
• M50: 32,561,323 km (0.036 R)
• M51: 32,857,078 km (0.113 R)
• M52: 34,148,556 km (0.079 R)
• M53: 34,448,949 km (0.033 R)
• M54: 34,750,239 km (0.105 R)
• M55: 35,254,384 km (0.106 R)
• M56: 35,964,076 km (0.099 R)
• M57: 37,707,490 km (0.063 R)
• M58: 38,745,699 km (0.073 R)
• M59: 39,268,394 km (0.086 R)
• M60: 39,688,165 km (0.04 R)
• M61: 44,840,615 km (0.119 R)
• M62: 45,279,386 km (0.108 R)
• M63: 45,609,399 km (0.098 R)
• M64: 46,604,225 km (0.098 R)
• M65: 51,111,309 km (0.095 R)
• M66: 53,068,648 km (0.079 R)
• M67: 53,416,463 km (0.092 R)
• M68: 54,464,845 km (0.098 R)
• M69: 54,698,816 km (0.025 R)
• M70: 55,284,940 km (0.095 R)
• M71: 55,755,426 km (0.084 R)
• M72: 55,873,159 km (0.079 R)
• M73: 57,174,661 km (0.052 R)
• M74: 58,366,507 km (0.12 R)
• M75: 60,290,335 km (0.03 R)
• M76: 60,532,385 km (0.083 R)
• M77: 61,868,743 km (0.089 R)
• M78: 63,337,794 km (0.084 R)
• M79: 64,200,076 km (0.097 R)
• M80: 66,060,774 km (0.052 R)
• M81: 68,064,937 km (0.082 R)
• M82: 68,695,342 km (0.059 R)
• M83: 72,904,428 km (0.094 R)
• M84: 74,715,161 km (0.074 R)
• M85: 76,802,500 km (0.113 R)
• M86: 77,064,894 km (0.107 R)
• M87: 78,776,892 km (0.086 R)
• M88: 81,168,065 km (0.112 R)
• M89: 81,435,246 km (0.088 R)
• M90: 83,178,959 km (0.058 R)
• M91: 83,448,235 km (0.102 R)
• M92: 85,070,475 km (0.117 R)
• M93: 86,566,453 km (0.088 R)
• M94: 87,249,368 km (0.091 R)
• M95: 89,033,322 km (0.063 R)
• M96: 89,171,102 km (0.113 R)
• M97: 91,801,332 km (0.067 R)
• M98: 92,358,285 km (0.055 R)

Planet 9 - Ice Giant

Semi-Major Axis: 17.73 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 81.7

Radius: 8

Gravity: 1.28 G

Time & Orbit

Eccentricity (e): 0.1

Orbit Range: 15.96 AU - 19.5 AU

Year: 27976 Days

Day: 15.5 Hours

Environment

Temp: -210 °C

Axial Tilt: 20.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (52)

Outer Limit: 63,464,345 km

• M1: 185,352 km (0.093 R)
• M2: 284,236 km (0.1 R)
• M3: 530,923 km (0.112 R)
• M4: 1,078,900 km (0.076 R)
• M5: 1,898,846 km (0.089 R)
• M6: 2,018,524 km (0.063 R)
• M7: 2,341,356 km (0.12 R)
• M8: 2,842,360 km (0.056 R)
• M9: 3,729,026 km (0.074 R)
• M10: 4,501,998 km (0.118 R)
• M11: 4,727,293 km (0.067 R)
• M12: 4,956,177 km (0.038 R)
• M13: 5,357,100 km (0.109 R)
• M14: 5,424,868 km (0.095 R)
• M15: 5,527,193 km (0.075 R)
• M16: 5,664,523 km (0.073 R)
• M17: 6,840,811 km (0.114 R)
• M18: 7,589,549 km (0.05 R)
• M19: 7,819,182 km (0.086 R)
• M20: 8,128,999 km (0.105 R)
• M21: 8,324,673 km (0.102 R)
• M22: 8,403,361 km (0.095 R)
• M23: 8,561,486 km (0.045 R)
• M24: 9,820,502 km (0.113 R)
• M25: 12,103,365 km (0.079 R)
• M26: 12,823,380 km (0.098 R)
• M27: 13,326,627 km (0.086 R)
• M28: 15,065,852 km (0.051 R)
• M29: 15,210,064 km (0.113 R)
• M30: 15,451,216 km (0.057 R)
• M31: 16,527,722 km (0.104 R)
• M32: 16,775,756 km (0.107 R)
• M33: 17,075,101 km (0.098 R)
• M34: 17,881,733 km (0.118 R)
• M35: 18,752,392 km (0.065 R)
• M36: 23,419,247 km (0.119 R)
• M37: 23,530,548 km (0.101 R)
• M38: 23,641,999 km (0.037 R)
• M39: 24,993,615 km (0.091 R)
• M40: 27,301,312 km (0.072 R)
• M41: 27,359,805 km (0.12 R)
• M42: 27,594,524 km (0.071 R)
• M43: 29,375,636 km (0.047 R)
• M44: 29,435,775 km (0.119 R)
• M45: 30,340,842 km (0.073 R)
• M46: 33,611,201 km (0.115 R)
• M47: 38,886,770 km (0.047 R)
• M48: 40,078,766 km (0.09 R)
• M49: 40,412,070 km (0.105 R)
• M50: 41,148,540 km (0.119 R)
• M51: 43,657,745 km (0.083 R)
• M52: 45,450,526 km (0.092 R)

Planet 10 - Ice Giant

Semi-Major Axis: 19.08 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 163

Radius: 4.9

Gravity: 6.79 G

Time & Orbit

Eccentricity (e): 0.101

Orbit Range: 17.15 AU - 21.01 AU

Year: 31232 Days

Day: 23.4 Hours

Environment

Temp: -203 °C

Axial Tilt: 49.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (94)

Outer Limit: 63,464,345 km

• M1: 115,041 km (0.039 R)
• M2: 267,780 km (0.12 R)
• M3: 326,722 km (0.059 R)
• M4: 646,113 km (0.079 R)
• M5: 707,000 km (0.029 R)
• M6: 1,160,580 km (0.118 R)
• M7: 1,260,512 km (0.11 R)
• M8: 1,389,315 km (0.066 R)
• M9: 1,859,202 km (0.114 R)
• M10: 1,946,867 km (0.076 R)
• M11: 2,405,683 km (0.117 R)
• M12: 2,565,903 km (0.102 R)
• M13: 2,896,664 km (0.113 R)
• M14: 3,032,798 km (0.115 R)
• M15: 4,005,184 km (0.104 R)
• M16: 4,426,900 km (0.092 R)
• M17: 4,742,402 km (0.12 R)
• M18: 5,188,054 km (0.032 R)
• M19: 5,520,610 km (0.094 R)
• M20: 5,989,001 km (0.118 R)
• M21: 7,515,647 km (0.036 R)
• M22: 8,129,447 km (0.071 R)
• M23: 8,273,361 km (0.098 R)
• M24: 9,005,642 km (0.111 R)
• M25: 9,154,642 km (0.089 R)
• M26: 9,404,620 km (0.109 R)
• M27: 9,656,991 km (0.088 R)
• M28: 10,898,654 km (0.083 R)
• M29: 12,409,592 km (0.09 R)
• M30: 12,575,347 km (0.05 R)
• M31: 12,741,849 km (0.101 R)
• M32: 12,853,299 km (0.079 R)
• M33: 13,415,189 km (0.096 R)
• M34: 13,870,415 km (0.116 R)
• M35: 14,099,899 km (0.095 R)
• M36: 14,157,494 km (0.101 R)
• M37: 14,971,755 km (0.1 R)
• M38: 15,207,072 km (0.113 R)
• M39: 16,281,634 km (0.104 R)
• M40: 16,828,115 km (0.08 R)
• M41: 17,318,796 km (0.088 R)
• M42: 17,689,948 km (0.047 R)
• M43: 18,188,857 km (0.08 R)
• M44: 18,251,539 km (0.108 R)
• M45: 18,755,683 km (0.076 R)
• M46: 19,520,278 km (0.074 R)
• M47: 19,648,783 km (0.065 R)
• M48: 19,841,914 km (0.094 R)
• M49: 19,971,166 km (0.08 R)
• M50: 20,035,792 km (0.092 R)
• M51: 20,230,270 km (0.114 R)
• M52: 22,075,111 km (0.084 R)
• M53: 22,882,191 km (0.094 R)
• M54: 22,949,809 km (0.1 R)
• M55: 23,017,577 km (0.051 R)
• M56: 23,493,747 km (0.041 R)
• M57: 24,386,547 km (0.068 R)
• M58: 26,347,027 km (0.087 R)
• M59: 27,274,235 km (0.069 R)
• M60: 27,994,698 km (0.096 R)
• M61: 29,381,022 km (0.077 R)
• M62: 30,938,934 km (0.062 R)
• M63: 31,313,826 km (0.065 R)
• M64: 31,614,817 km (0.096 R)
• M65: 31,690,215 km (0.095 R)
• M66: 32,523,475 km (0.119 R)
• M67: 33,210,578 km (0.097 R)
• M68: 33,364,065 km (0.049 R)
• M69: 33,979,810 km (0.059 R)
• M70: 34,057,002 km (0.074 R)
• M71: 35,222,519 km (0.076 R)
• M72: 35,378,849 km (0.085 R)
• M73: 37,912,289 km (0.116 R)
• M74: 39,444,022 km (0.029 R)
• M75: 40,421,793 km (0.032 R)
• M76: 42,900,929 km (0.073 R)
• M77: 44,580,764 km (0.088 R)
• M78: 44,749,959 km (0.075 R)
• M79: 45,173,770 km (0.114 R)
• M80: 45,940,010 km (0.097 R)
• M81: 46,196,421 km (0.101 R)
• M82: 48,091,078 km (0.047 R)
• M83: 48,699,193 km (0.043 R)
• M84: 49,310,001 km (0.113 R)
• M85: 51,422,922 km (0.089 R)
• M86: 51,955,789 km (0.087 R)
• M87: 53,116,669 km (0.094 R)
• M88: 53,475,554 km (0.076 R)
• M89: 53,925,245 km (0.071 R)
• M90: 54,105,511 km (0.056 R)
• M91: 57,292,095 km (0.089 R)
• M92: 60,539,117 km (0.101 R)
• M93: 60,820,062 km (0.104 R)
• M94: 62,704,995 km (0.036 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 205 - 14,226 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit