Measuring the size of the Sun

It is very rare for me to get the opportunity to measure the Sun. The glare is usually too big. However at dawn the other week I was able to verify that the Sun subtends half a little finger at arm's length. That's half a degree or about 0.009 radians. Angle subtended in radians = diameter of Sun/distance to Sun. The Sun is 150 million km away so diameter of Sun comes out at 1.3 million km. That's big!