Moreover, even in an infinite universe the parallaxdistance does not increase indefinitely with redshift and that even thefarthest possible observable point may have a finite parallax angle, a factorthat needs to be carefully taken into account when using distant objects as thebackground field ...
Tags Angle Formula Small angle In summary, the formula discussed in this conversation relates the angular size of an object, its physical size, and the distance from the observer to the object. To find the physical size of Betelgeuse, one would use the inverse tangent to deter...