NEOWISE（C / 2020 F3）彗星具有接近拋物線軌道的逆行長週期。2020年3月27日首度被NASA的廣域紅外線巡天探測衛星（WISE）發現，7月初通過近日點後亮度激增的NEOWISE彗星橫空出世，成為北半球自1997年的海爾-博普彗星後，迄今可觀測到最亮的彗星，吸引觀星者追逐。根據預報，NEOWISE 彗星於7月22～23日離地球最近，距離僅 1.03 億公里，這次沒看到要等6千年後了。一般拍攝均以彗星本體為主，若能搭配城市特有地景，畫面將更加豐富。
NEOWISE (C/2020 F3) is a retrograde comet with a near parabolic orbit. On March 27, 2020 it was discovered by NASA’s Wide-field Infrared Survey Explorer (WISE) space telescope. In early July, after NEOWISE emerged from perihelion its brightness greatly increased. It is the brightest comet in the northern hemisphere since Comet Hale-Bopp in 1997. To date, it is the brightest ever observed, attracting many stargazers. NEOWISE was predicted to come closest to the earth on July 22-23, at a distance of only 103 million kilometers. If this opportunity was missed, it would be a 6,000-year wait. While most photographers focused on the comet, the addition of the unique urban landscape enriched the composition.