Assume that the nearest stars to us have an intrinsic luminosity about the same as the Sun’s. Their.

Assume that the nearest stars to us have an
intrinsic luminosity about the same as the Sun’s. Their apparent brightness,
however, is about times fainter than the Sun. From this, estimate the distance
to the nearest stars.

A certain pulsar, believed to be a neutron
star of mass 1.5 times that of the Sun, with diameter 16 km, is observed to
have a rotation speed of If it loses rotational kinetic energy at the rate of 1
part in per day, which is all transformed into radiation, what is the power
output of the star?