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SZ Cyg is a Cepheid with period ~ 15.1 days. We have about a 60 day spread of images with Y41. Below we present preliminary results in the Blue filter with Y41. Only one reference star is in the fov-but it has mag 9.6, comparable to SZ Cyg and the occurresnce of this reference star is the primary reason we start our Cepheid project with the star. A power pt is being prepared but for now we will just upload a set of images. |
SZ-Cyg: Period ~15 days
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FIND SZ Cyg in image: Compare with AAVSO chart for SZ Cyg. Reference star 96 is shown. | 134k | v. 2 | Dec 1, 2011, 3:40 PM | Richard DeCoster | |
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CHAOS perhaps! Light curve for ~ 60 day period in the Blue filter with Yerkes 41" reflector. Images by Vivian Hoette. The pattern is far from obvious here. Fourier analysis to follow. | 11k | v. 2 | Nov 20, 2011, 3:31 PM | Richard DeCoster | |
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Fourier analysis of light curve with SkyNet/Afterglow. Spectral analsys peaks at Period ~15.025 days. There are a couple of less than great data. | 17k | v. 1 | Nov 20, 2011, 3:22 PM | Richard DeCoster | |
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Light curve for an unreferences star within field with respect to AAVSO ref star 96. | 12k | v. 3 | Nov 20, 2011, 3:25 PM | Richard DeCoster | |
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Grand Finale-SZ Cyg FOLDED light curve with respect to AAVSO ref 96. Looks pretty good-there are a few images that are less good that may be deleted as more data are taken. But notice the characterist shape of this Cepheid variable. | 10k | v. 4 | Nov 20, 2011, 3:32 PM | Richard DeCoster |