Ascientist observes two stars in the night sky through a telescope. star a is white in color and relatively dim. the star’s estimated temperature is very high.
star b is red in color and extremely bright. the star’s temperature is low compared with other stars.
the scientist classify the two stars.
star a is ( a. black dwarf b. white dwarf c. neutron star d. red supergiant)
and star b is ( a. black hole b. red dwarf c. red giant d. supernova)

Star A is a neutron star and star B is a red giant.

Explanation:

Out of the given for star A, a Neutron star is a very hot star, very small in size and hence dim and is white in color. A neutron star results after a massive star goes supernova. It is primarily composed of neutrons packed in a small boundary.

Out of the given options star B would be a red giant. This is because, a red giant star is red in color, is very big in size and has a low temperature. A red giant star is a towards the end stage of a small to an average mass star.

the working equation for the angular size is the product of the physical size and 360 degrees divided by the product of two pi and distance from earth. the minimum size would be 0.559 degrees while the maximum size would be 0.49 degrees.