The Comet of 1729, also known as C/1729 P1 or Comet Sarabat, was an assumed parabolic comet with an absolute magnitude of −3, possibly the brightest ever observed for a comet; it is therefore consider
C/2014 UN271, simply known as C/2014 UN271 or Comet Bernardinelli–Bernstein, is a large Oort cloud comet discovered by astronomers Pedro Bernardinelli and Gary Bernstein in archival images from the Da
Color composite image of C/2014 UN271 from the Dark Energy Survey in October 2017
Comet Bernardinelli–Bernstein with a diffuse coma, imaged by Las Cumbres Observatory on 22 June 2021
Orbit diagram of C/2014 UN271's near-parabolic trajectory passing perpendicularly through the outer Solar System