Reply To: Measuring R number for the Sun

Home Forums Sun Measuring R number for the Sun Reply To: Measuring R number for the Sun

#612715
Bill Barton
Participant

The full version of the formula can be expressed as

R = k(10g + s)

Where R, g & s are as above. k is an observing constant based on personal experience and instrumentation.

Back in the 1990’s when I used to observe the Sun I found my k was 0.8.

Deciding what was one or two active areas is very much a matter of experience (feeling), but a Stonyhurst Disc could be used as a somewhat crude guide (if you observe by whole disc drawing).