K. In modern astronomy, the constellations are ?

T F 42) more than 50 sky regions covering the whole sky.
T F 43) a small number (less than 10) of well-defined groups of stars in our sky which are
close to each other in space (also called "star clusters").
T F 44) 12 specific regions through which the planets and Moon appear to move in our sky.
T F 45) used to describe directions in space, but the "pictures" they appear to make are not
considered to have any fundamental physical importance.