There are several kinds of P/Es: 1  Trailing P/E: The earnings are the most recently reported quarter, plus the previous three reported quarters. 2  Forward P/E: The earnings number is the total of estimates for the current unreported quarter and estimates for the following three quarters.
A corona (Latin, ' crown ') is an aura of plasma that surrounds the sun and other celestial bodies. The Sun's corona extends millions of kilometres into space and is most easily seen during a total solar eclipse, but it is also observable with a coronagraph.
The Corona. The outermost layer of the Sun is called the corona or the crown. The corona is very thin and faint and is therefore very difficult to observe from the earth.Typically, we observe the corona during a total solar eclipse or by using a coronagraph telescope which simulates an eclipse by covering the bright solar disk.he Corona. The outermost layer of the Sun is called the corona or the crown. The corona is very thin and faint and is therefore very difficult to observe from the earth.