🌌 Stone's Star System Generator

Planet 1 - Terrestrial

Semi-Major Axis: 0.85 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 0.47

Radius: 0.74

Gravity: 0.86 G

Time & Orbit

Eccentricity (e): 0.191

Orbit Range: 0.69 AU - 1.01 AU

Year: 289 Days

Day: 29.8 Hours

Environment

Temp: 157 °C

Axial Tilt: 43.8 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 2 - Terrestrial

Semi-Major Axis: 0.87 AU

Status: Inner (Hot)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.99

Radius: 1.55

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.154

Orbit Range: 0.74 AU - 1 AU

Year: 299 Days

Day: 44.5 Hours

Environment

Temp: 78 °C

Axial Tilt: 41.2 °

Atmosphere: Dense CO₂

Biome: Volcanic/Barren

Planet 3 - Terrestrial

Semi-Major Axis: 1.2 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 2.15

Radius: 1.36

Gravity: 1.16 G

Time & Orbit

Eccentricity (e): 0.159

Orbit Range: 1.01 AU - 1.39 AU

Year: 485 Days

Day: 31.9 Hours

Environment

Temp: -8 °C

Axial Tilt: 3.6 °

Atmosphere: N₂, O₂

Biome: Oceanic/Continental

Planet 4 - Terrestrial

Semi-Major Axis: 1.24 AU

Status: HZ

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 4.44

Radius: 1.82

Gravity: 1.34 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 1 AU - 1.48 AU

Year: 509 Days

Day: 35.6 Hours

Environment

Temp: 6 °C

Axial Tilt: 36.1 °

Atmosphere: N₂, O₂

Biome: Arid/Tundra

Satellites (2)

Outer Limit: 61,212,403 km

• M1: 610,210 km (0.052 R)
• M2: 800,349 km (0.071 R)

Planet 5 - Terrestrial

Semi-Major Axis: 1.97 AU

Status: Outer (Cold)

Composition: Rocky (Silicates/Metals)

Physical Data

Mass: 3.46

Radius: 1.64

Gravity: 1.29 G

Time & Orbit

Eccentricity (e): 0.011

Orbit Range: 1.95 AU - 1.99 AU

Year: 1020 Days

Day: 33.5 Hours

Environment

Temp: -78 °C

Axial Tilt: 26.6 °

Atmosphere: Thin N₂/CH₄

Biome: Ice Cap/Desert

Planet 6 - Gas Giant

Semi-Major Axis: 6.81 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 140.9

Radius: 10.9

Gravity: 1.19 G

Time & Orbit

Eccentricity (e): 0.035

Orbit Range: 6.57 AU - 7.05 AU

Year: 6557 Days

Day: 13.7 Hours

Environment

Temp: -155 °C

Axial Tilt: 21.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (62)

Outer Limit: 61,212,403 km

• M1: 150,795 km (0.105 R)
• M2: 292,763 km (0.105 R)
• M3: 439,668 km (0.109 R)
• M4: 571,464 km (0.1 R)
• M5: 776,563 km (0.099 R)
• M6: 878,289 km (0.106 R)
• M7: 1,073,365 km (0.088 R)
• M8: 1,211,593 km (0.096 R)
• M9: 1,283,101 km (0.11 R)
• M10: 1,443,021 km (0.043 R)
• M11: 1,622,838 km (0.117 R)
• M12: 1,702,274 km (0.108 R)
• M13: 1,851,423 km (0.054 R)
• M14: 2,177,547 km (0.066 R)
• M15: 2,310,240 km (0.12 R)
• M16: 2,724,626 km (0.065 R)
• M17: 2,916,410 km (0.098 R)
• M18: 3,313,294 km (0.096 R)
• M19: 3,432,374 km (0.111 R)
• M20: 3,501,039 km (0.118 R)
• M21: 3,780,338 km (0.074 R)
• M22: 3,904,953 km (0.074 R)
• M23: 4,472,976 km (0.111 R)
• M24: 4,604,922 km (0.098 R)
• M25: 4,834,106 km (0.102 R)
• M26: 5,008,387 km (0.062 R)
• M27: 5,363,532 km (0.079 R)
• M28: 5,564,293 km (0.091 R)
• M29: 5,645,375 km (0.098 R)
• M30: 5,788,091 km (0.04 R)
• M31: 6,498,532 km (0.104 R)
• M32: 6,777,382 km (0.06 R)
• M33: 7,060,421 km (0.119 R)
• M34: 7,280,629 km (0.055 R)
• M35: 7,503,231 km (0.057 R)
• M36: 7,818,583 km (0.06 R)
• M37: 8,299,989 km (0.081 R)
• M38: 8,369,552 km (0.102 R)
• M39: 9,703,217 km (0.077 R)
• M40: 10,096,360 km (0.053 R)
• M41: 10,419,641 km (0.074 R)
• M42: 10,923,786 km (0.109 R)
• M43: 11,461,590 km (0.102 R)
• M44: 11,798,934 km (0.079 R)
• M45: 12,483,344 km (0.061 R)
• M46: 12,563,080 km (0.118 R)
• M47: 13,045,533 km (0.095 R)
• M48: 13,289,078 km (0.116 R)
• M49: 13,370,609 km (0.115 R)
• M50: 13,588,723 km (0.12 R)
• M51: 15,576,130 km (0.096 R)
• M52: 15,719,445 km (0.077 R)
• M53: 15,892,081 km (0.059 R)
• M54: 16,036,443 km (0.072 R)
• M55: 17,892,205 km (0.11 R)
• M56: 18,132,608 km (0.053 R)
• M57: 19,443,534 km (0.106 R)
• M58: 19,752,903 km (0.106 R)
• M59: 20,126,150 km (0.12 R)
• M60: 20,658,868 km (0.106 R)
• M61: 20,753,413 km (0.109 R)
• M62: 21,355,246 km (0.084 R)

Planet 7 - Gas Giant

Semi-Major Axis: 8.53 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 863.3

Radius: 13.2

Gravity: 4.95 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 6.76 AU - 10.3 AU

Year: 9192 Days

Day: 11.9 Hours

Environment

Temp: -161 °C

Axial Tilt: 4.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (80)

Outer Limit: 61,212,403 km

• M1: 356,941 km (0.053 R)
• M2: 709,543 km (0.06 R)
• M3: 899,083 km (0.112 R)
• M4: 1,481,318 km (0.073 R)
• M5: 2,166,776 km (0.118 R)
• M6: 2,345,994 km (0.101 R)
• M7: 3,055,088 km (0.099 R)
• M8: 3,315,538 km (0.074 R)
• M9: 3,493,409 km (0.085 R)
• M10: 3,796,794 km (0.119 R)
• M11: 4,300,340 km (0.083 R)
• M12: 5,650,760 km (0.059 R)
• M13: 5,935,744 km (0.045 R)
• M14: 6,116,159 km (0.117 R)
• M15: 6,668,774 km (0.095 R)
• M16: 7,237,545 km (0.11 R)
• M17: 7,625,452 km (0.072 R)
• M18: 8,381,221 km (0.119 R)
• M19: 8,543,385 km (0.103 R)
• M20: 8,788,576 km (0.067 R)
• M21: 8,870,855 km (0.029 R)
• M22: 9,036,160 km (0.068 R)
• M23: 9,119,187 km (0.089 R)
• M24: 9,411,950 km (0.085 R)
• M25: 10,006,602 km (0.073 R)
• M26: 10,222,023 km (0.091 R)
• M27: 10,526,155 km (0.117 R)
• M28: 10,745,166 km (0.106 R)
• M29: 11,010,104 km (0.055 R)
• M30: 11,908,589 km (0.03 R)
• M31: 12,459,109 km (0.092 R)
• M32: 13,017,857 km (0.074 R)
• M33: 13,919,334 km (0.072 R)
• M34: 15,086,945 km (0.106 R)
• M35: 15,983,186 km (0.057 R)
• M36: 16,336,387 km (0.095 R)
• M37: 16,794,306 km (0.117 R)
• M38: 17,204,802 km (0.085 R)
• M39: 17,308,025 km (0.108 R)
• M40: 17,515,068 km (0.116 R)
• M41: 18,193,345 km (0.118 R)
• M42: 18,509,296 km (0.118 R)
• M43: 19,468,218 km (0.092 R)
• M44: 20,170,730 km (0.09 R)
• M45: 20,881,619 km (0.048 R)
• M46: 21,434,084 km (0.11 R)
• M47: 22,103,385 km (0.067 R)
• M48: 23,063,354 km (0.103 R)
• M49: 24,094,682 km (0.103 R)
• M50: 24,383,705 km (0.108 R)
• M51: 24,907,148 km (0.032 R)
• M52: 25,728,590 km (0.055 R)
• M53: 27,157,399 km (0.088 R)
• M54: 28,673,125 km (0.108 R)
• M55: 30,153,844 km (0.077 R)
• M56: 31,217,784 km (0.042 R)
• M57: 31,470,006 km (0.09 R)
• M58: 31,786,107 km (0.106 R)
• M59: 32,485,178 km (0.118 R)
• M60: 33,382,466 km (0.099 R)
• M61: 33,511,269 km (0.091 R)
• M62: 33,640,223 km (0.097 R)
• M63: 35,397,998 km (0.102 R)
• M64: 36,122,650 km (0.113 R)
• M65: 37,922,013 km (0.087 R)
• M66: 38,798,657 km (0.029 R)
• M67: 39,477,681 km (0.097 R)
• M68: 40,709,769 km (0.083 R)
• M69: 40,916,364 km (0.114 R)
• M70: 41,607,357 km (0.101 R)
• M71: 41,885,010 km (0.071 R)
• M72: 42,093,550 km (0.092 R)
• M73: 42,581,388 km (0.05 R)
• M74: 42,721,262 km (0.107 R)
• M75: 42,861,136 km (0.098 R)
• M76: 43,141,483 km (0.087 R)
• M77: 45,191,722 km (0.094 R)
• M78: 45,477,005 km (0.044 R)
• M79: 46,192,831 km (0.066 R)
• M80: 46,552,165 km (0.09 R)

Planet 8 - Gas Giant

Semi-Major Axis: 8.75 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 315.8

Radius: 13.8

Gravity: 1.66 G

Time & Orbit

Eccentricity (e): 0.007

Orbit Range: 8.69 AU - 8.81 AU

Year: 9550 Days

Day: 14.8 Hours

Environment

Temp: -179 °C

Axial Tilt: 21 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (78)

Outer Limit: 61,212,403 km

• M1: 177,423 km (0.12 R)
• M2: 415,732 km (0.105 R)
• M3: 805,285 km (0.103 R)
• M4: 1,120,488 km (0.045 R)
• M5: 1,387,520 km (0.113 R)
• M6: 1,493,286 km (0.049 R)
• M7: 1,983,817 km (0.048 R)
• M8: 2,165,280 km (0.097 R)
• M9: 2,310,390 km (0.059 R)
• M10: 2,878,113 km (0.082 R)
• M11: 2,992,257 km (0.12 R)
• M12: 3,084,708 km (0.118 R)
• M13: 3,201,694 km (0.108 R)
• M14: 3,935,022 km (0.044 R)
• M15: 4,139,373 km (0.115 R)
• M16: 4,347,165 km (0.093 R)
• M17: 4,452,481 km (0.091 R)
• M18: 4,665,658 km (0.106 R)
• M19: 4,909,503 km (0.115 R)
• M20: 5,381,634 km (0.119 R)
• M21: 6,102,696 km (0.05 R)
• M22: 7,256,544 km (0.077 R)
• M23: 7,762,484 km (0.087 R)
• M24: 8,117,031 km (0.098 R)
• M25: 8,214,718 km (0.041 R)
• M26: 8,476,963 km (0.043 R)
• M27: 8,575,997 km (0.114 R)
• M28: 8,675,480 km (0.085 R)
• M29: 8,775,261 km (0.101 R)
• M30: 9,009,831 km (0.109 R)
• M31: 9,212,536 km (0.112 R)
• M32: 9,382,479 km (0.077 R)
• M33: 10,389,273 km (0.075 R)
• M34: 10,637,605 km (0.087 R)
• M35: 11,833,940 km (0.083 R)
• M36: 13,456,478 km (0.086 R)
• M37: 13,649,609 km (0.047 R)
• M38: 13,921,578 km (0.083 R)
• M39: 14,195,492 km (0.045 R)
• M40: 14,392,213 km (0.1 R)
• M41: 14,987,612 km (0.102 R)
• M42: 15,510,307 km (0.086 R)
• M43: 15,794,244 km (0.118 R)
• M44: 16,202,796 km (0.11 R)
• M45: 17,030,521 km (0.069 R)
• M46: 17,155,884 km (0.074 R)
• M47: 17,744,851 km (0.083 R)
• M48: 17,872,009 km (0.065 R)
• M49: 18,041,802 km (0.111 R)
• M50: 18,426,119 km (0.112 R)
• M51: 18,597,858 km (0.072 R)
• M52: 19,289,897 km (0.109 R)
• M53: 20,078,428 km (0.042 R)
• M54: 20,166,691 km (0.073 R)
• M55: 20,922,309 km (0.082 R)
• M56: 21,687,203 km (0.119 R)
• M57: 22,050,427 km (0.084 R)
• M58: 22,232,637 km (0.083 R)
• M59: 22,369,818 km (0.116 R)
• M60: 22,507,149 km (0.096 R)
• M61: 23,337,118 km (0.116 R)
• M62: 24,884,858 km (0.105 R)
• M63: 25,360,429 km (0.062 R)
• M64: 26,175,738 km (0.081 R)
• M65: 29,472,127 km (0.078 R)
• M66: 29,773,716 km (0.116 R)
• M67: 29,975,374 km (0.102 R)
• M68: 30,633,605 km (0.087 R)
• M69: 30,837,207 km (0.08 R)
• M70: 31,347,935 km (0.082 R)
• M71: 31,553,183 km (0.075 R)
• M72: 33,209,979 km (0.083 R)
• M73: 33,523,836 km (0.051 R)
• M74: 34,471,239 km (0.091 R)
• M75: 34,948,157 km (0.094 R)
• M76: 35,320,656 km (0.111 R)
• M77: 35,480,725 km (0.115 R)
• M78: 35,801,613 km (0.057 R)

Planet 9 - Gas Giant

Semi-Major Axis: 9.28 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 840.4

Radius: 9.4

Gravity: 9.51 G

Time & Orbit

Eccentricity (e): 0.076

Orbit Range: 8.57 AU - 9.99 AU

Year: 10430 Days

Day: 13.2 Hours

Environment

Temp: -173 °C

Axial Tilt: 0.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (92)

Outer Limit: 61,212,403 km

• M1: 121,623 km (0.104 R)
• M2: 277,205 km (0.077 R)
• M3: 522,396 km (0.106 R)
• M4: 910,303 km (0.099 R)
• M5: 1,220,120 km (0.06 R)
• M6: 1,610,421 km (0.085 R)
• M7: 1,732,343 km (0.117 R)
• M8: 1,934,151 km (0.087 R)
• M9: 3,518,692 km (0.119 R)
• M10: 3,582,271 km (0.057 R)
• M11: 3,678,312 km (0.098 R)
• M12: 3,742,939 km (0.081 R)
• M13: 3,840,477 km (0.109 R)
• M14: 4,443,655 km (0.044 R)
• M15: 4,862,230 km (0.055 R)
• M16: 5,040,401 km (0.087 R)
• M17: 5,293,371 km (0.1 R)
• M18: 5,624,880 km (0.099 R)
• M19: 5,774,478 km (0.094 R)
• M20: 5,849,726 km (0.11 R)
• M21: 6,346,989 km (0.097 R)
• M22: 6,937,601 km (0.085 R)
• M23: 7,341,067 km (0.097 R)
• M24: 8,128,849 km (0.083 R)
• M25: 9,161,822 km (0.066 R)
• M26: 9,382,330 km (0.085 R)
• M27: 10,008,846 km (0.09 R)
• M28: 10,927,227 km (0.118 R)
• M29: 12,161,110 km (0.044 R)
• M30: 12,403,309 km (0.095 R)
• M31: 13,040,895 km (0.087 R)
• M32: 13,840,197 km (0.078 R)
• M33: 14,398,945 km (0.071 R)
• M34: 14,501,270 km (0.055 R)
• M35: 14,655,355 km (0.084 R)
• M36: 14,913,262 km (0.102 R)
• M37: 15,854,233 km (0.1 R)
• M38: 15,959,849 km (0.101 R)
• M39: 16,868,207 km (0.062 R)
• M40: 17,902,976 km (0.086 R)
• M41: 18,622,841 km (0.053 R)
• M42: 19,126,836 km (0.092 R)
• M43: 19,635,169 km (0.096 R)
• M44: 19,919,555 km (0.115 R)
• M45: 20,665,450 km (0.1 R)
• M46: 21,070,710 km (0.113 R)
• M47: 21,420,321 km (0.118 R)
• M48: 21,478,813 km (0.107 R)
• M49: 22,361,890 km (0.08 R)
• M50: 23,136,657 km (0.112 R)
• M51: 23,557,625 km (0.103 R)
• M52: 24,102,461 km (0.118 R)
• M53: 24,590,300 km (0.089 R)
• M54: 25,328,266 km (0.066 R)
• M55: 25,886,416 km (0.079 R)
• M56: 27,967,472 km (0.096 R)
• M57: 29,384,612 km (0.092 R)
• M58: 29,709,838 km (0.088 R)
• M59: 29,775,063 km (0.114 R)
• M60: 31,221,674 km (0.086 R)
• M61: 31,820,065 km (0.042 R)
• M62: 32,087,247 km (0.086 R)
• M63: 32,691,024 km (0.082 R)
• M64: 35,074,866 km (0.081 R)
• M65: 35,212,646 km (0.066 R)
• M66: 35,627,481 km (0.045 R)
• M67: 35,835,422 km (0.056 R)
• M68: 36,183,087 km (0.033 R)
• M69: 36,392,076 km (0.071 R)
• M70: 36,461,938 km (0.088 R)
• M71: 37,091,894 km (0.118 R)
• M72: 37,302,827 km (0.035 R)
• M73: 37,584,520 km (0.102 R)
• M74: 37,725,591 km (0.077 R)
• M75: 38,220,910 km (0.093 R)
• M76: 38,647,264 km (0.072 R)
• M77: 39,719,731 km (0.096 R)
• M78: 41,092,291 km (0.104 R)
• M79: 41,310,554 km (0.108 R)
• M80: 42,333,654 km (0.069 R)
• M81: 43,217,179 km (0.053 R)
• M82: 43,883,937 km (0.099 R)
• M83: 45,603,116 km (0.025 R)
• M84: 46,281,692 km (0.098 R)
• M85: 47,649,166 km (0.099 R)
• M86: 47,954,794 km (0.065 R)
• M87: 49,415,617 km (0.12 R)
• M88: 49,725,135 km (0.074 R)
• M89: 50,035,102 km (0.034 R)
• M90: 50,735,071 km (0.031 R)
• M91: 52,617,461 km (0.045 R)
• M92: 52,696,448 km (0.096 R)

Planet 10 - Gas Giant

Semi-Major Axis: 10.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 798.2

Radius: 13.5

Gravity: 4.38 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 9.79 AU - 12.11 AU

Year: 13369 Days

Day: 13.4 Hours

Environment

Temp: -189 °C

Axial Tilt: 16.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (77)

Outer Limit: 61,212,403 km

• M1: 211,531 km (0.054 R)
• M2: 409,150 km (0.062 R)
• M3: 501,003 km (0.075 R)
• M4: 656,286 km (0.114 R)
• M5: 870,959 km (0.044 R)
• M6: 976,874 km (0.062 R)
• M7: 1,472,193 km (0.115 R)
• M8: 1,680,732 km (0.1 R)
• M9: 1,843,644 km (0.039 R)
• M10: 1,983,668 km (0.052 R)
• M11: 4,675,233 km (0.089 R)
• M12: 5,464,960 km (0.078 R)
• M13: 5,917,045 km (0.116 R)
• M14: 6,084,445 km (0.12 R)
• M15: 6,295,976 km (0.094 R)
• M16: 7,166,486 km (0.113 R)
• M17: 7,707,133 km (0.073 R)
• M18: 7,798,387 km (0.086 R)
• M19: 8,732,177 km (0.087 R)
• M20: 8,971,235 km (0.079 R)
• M21: 9,455,782 km (0.055 R)
• M22: 9,849,524 km (0.088 R)
• M23: 10,653,313 km (0.118 R)
• M24: 11,478,196 km (0.06 R)
• M25: 12,216,761 km (0.109 R)
• M26: 13,025,187 km (0.051 R)
• M27: 13,408,457 km (0.036 R)
• M28: 13,573,912 km (0.119 R)
• M29: 13,684,465 km (0.088 R)
• M30: 14,354,664 km (0.109 R)
• M31: 15,495,347 km (0.085 R)
• M32: 15,669,031 km (0.113 R)
• M33: 15,843,312 km (0.118 R)
• M34: 16,311,254 km (0.09 R)
• M35: 16,546,871 km (0.112 R)
• M36: 17,681,720 km (0.079 R)
• M37: 18,106,129 km (0.042 R)
• M38: 18,289,088 km (0.105 R)
• M39: 18,903,337 km (0.07 R)
• M40: 19,837,426 km (0.103 R)
• M41: 20,152,030 km (0.083 R)
• M42: 20,405,000 km (0.099 R)
• M43: 20,850,353 km (0.093 R)
• M44: 23,455,450 km (0.104 R)
• M45: 24,055,786 km (0.11 R)
• M46: 25,407,702 km (0.094 R)
• M47: 25,955,380 km (0.081 R)
• M48: 26,161,825 km (0.095 R)
• M49: 26,645,475 km (0.108 R)
• M50: 27,902,845 km (0.102 R)
• M51: 28,680,754 km (0.084 R)
• M52: 28,965,439 km (0.104 R)
• M53: 29,108,155 km (0.103 R)
• M54: 33,720,856 km (0.085 R)
• M55: 34,096,496 km (0.044 R)
• M56: 34,549,329 km (0.108 R)
• M57: 35,460,679 km (0.058 R)
• M58: 35,613,269 km (0.06 R)
• M59: 35,919,346 km (0.062 R)
• M60: 38,007,583 km (0.079 R)
• M61: 38,869,716 km (0.053 R)
• M62: 39,976,141 km (0.108 R)
• M63: 40,214,600 km (0.051 R)
• M64: 44,586,897 km (0.068 R)
• M65: 44,999,339 km (0.11 R)
• M66: 49,192,866 km (0.118 R)
• M67: 50,303,481 km (0.07 R)
• M68: 51,508,791 km (0.107 R)
• M69: 52,549,394 km (0.099 R)
• M70: 53,072,388 km (0.109 R)
• M71: 56,959,688 km (0.111 R)
• M72: 58,305,770 km (0.084 R)
• M73: 60,025,846 km (0.107 R)
• M74: 60,116,952 km (0.109 R)
• M75: 60,390,117 km (0.044 R)
• M76: 60,755,136 km (0.076 R)
• M77: 60,937,945 km (0.091 R)

Kuiper Belt

Range: 30 - 54 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 440 - 14,015 AU

Composition

Type: Cometary Reservoir

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

Gravitational Limit