[Aavso-photometry] Superhump period of 1RXS J053234.9+624755

[Jeremy Shears]

I carried out time series photometry on this CV last night, 2005 March 19, 
between 19.30 and 23.29 UT (clouded out). Although the conditions were not 
ideal – bright moonlight and thin haze – the star was very bright (much 
brighter than the previous night). The instrument was a Takahashi FS102 
apochromatic refractor, with an unfiltered Starlight Xpress MX716 CCD 
camera.

During the 4 h observation window, 408 separate images were collected. These 
were reduced in AIP4WIN and subsequently analysed in Peranso. An inspection 
of the light curve shows approximately 3 complete superhump cycles, with a 
0.3 mag peak-to-trough variation (mag 11.7 to 12.0C). Preliminary ANOVA 
analysis using the Peranso software indicates a superhump period value of 
0.0561 d.

Kind regards,
Jeremy Shears
Bunbury, Cheshire, United Kingdom

_________________________________________________________________
Express yourself with cool new emoticons http://www.msn.co.uk/specials/myemo