[vsnet-obs 64773] SDSS J150240.98+333423.9 from 25 july

[Javier Ruiz]

Last Saturday I have observed SDSS150241 from Observatory of  Cantabria  (Spain), with RC-0.4m f/5.8 and CCD  ST-8 unfiltered. 60  sec  exposition. The star with magnitude V=11.874 (15 03 02.00 +33 37 36.61) was used as reference star. Check stars= 15 02 28.58 +33 32 43.6 ;  15 03 09.61 +33 34 13.7

The fog intervals didn't allow me to do a good calibration and complete the time serie. That's why the result is subject to some caution. Due to the gradients in the images, I have done PSF photometry with Iris.

The light curve are here:

<http://www.parhelio.com/descargas/variables/sdss150241/090726.gif>

The Y axis origin and the differential magnitude of the check stars are arbitrary and only for comparative purposes.

The data are available at:

<http://www.parhelio.com/descargas/variables/sdss150241/090726.txt>

Best regards

Javier Ruiz
Observatory of Cantabria (CIMA, IFCA-CSIC-UC, AAC)


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