[Aavso-photometry] Var Her 04: Time to check your data

[Aaron Price]

  This weekend would be a good time to check any observations submitted of
Var Her 04. Go back and see if you can increase the precision of your
photometry through more careful processing. Sometimes a few days away can
open your eyes to things lost in a bleary eyed morning of processing. Some
things to look for:

   - Timing: Make sure your computer clock is sync'ed and that your
software is recording the midpoint of the exposure as the observation
time.
   - Annuli: Play with different aperture sizes and see if you can get
better results. Try starting with 3-4 times the FWHM.
   - Beware of Companions: Var Her 04 has a companion farely bright and to
the east. Either leave it completely out or completely inside your
annulus.
   - Error Reporting: If you have time, consider reporting systemic
uncertainty along with your stochastic uncertainty. Visit this URL
for info: http://www.aavso.org/observing/programs/ccd/manual/4.shtml#6

  If you decide to upload new and improved data then send them via the
normal channels. After you submit the observations send me an e-mail and
I'll remove the previous data.


Aaron