[Aavso-photometry] Time seriess for GK Persei

[gianlucaros at gmail.com]

I am currently using Astroart to process the data.
Concerning my experiment on taking TS on GK Persei I used the formula 2.5Log
(1+1/SNR) to calculate uncertainty. The scale of my CCD/scope
combination is 1.67 arcsec per pixel and the FWHM and seeing of the 5 measures
was as follows:

FWHM =  2.56 = 4",27    SNR 27.7  err. 0.04
               3.28 = 5".48    SNR 22     err. 0.05
               2.26 = 3".77    SNR 35.5  err. 0.03
               2.35 = 3".92    SNR 37.7  err. 0.03
               2.35 = 3".92    SNR 47.7  err. 0.02

The TS were taken at 30 sec intervals and not 20 sec as I mistakenly
indicated in my previous e-mail.
Cheers
Gianluca

2008/3/23, aavso-photometry-request at mira.aavso.org
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