Wikipedia:Reference desk/Archives/Science/2021 July 18

= July 18 =

C/2014 UN271 (Bernardinelli-Bernstein) visibility
Are there any estimates on whether or not C/2014 UN271 (Bernardinelli-Bernstein) will become visible to the naked eye? Bubba73 You talkin' to me? 17:13, 18 July 2021 (UTC)


 * Despite its massive size Comet Bernardinelli-Bernstein sadly won’t ever get close enough to Earth for us to have a look naked-eye... In fact, it will only reach magnitude +17 as seen from Earth, which is well out of reach for backyard telescopes.  Alansplodge (talk) 18:10, 18 July 2021 (UTC)
 * It is unlikely to ever become visible to the naked eye taking into account its perihelion distance. Ruslik_ Zero 18:12, 18 July 2021 (UTC)


 * That is what I was thinking, with a perihelion of ~ 10AU. Bubba73 You talkin' to me? 23:04, 18 July 2021 (UTC)