[vsnet-alert 9477] V1006 Cyg: first light curve and period analysis

[Gianluca Masi]

Dear All,

finally, I'm able to present a lightcurve and a very
preliminary analysis for it.

I observed this start during the last two nights, starting
yesterday with a short run, ended because the sun was
rising, and continuing tonigh with a long one, still
ongoing.

Yesterday, the star was 0.02/0.03 mag brighter, showing a
larger oscillation than tonight.

>From tonight's data, it is clear that superhumps are of
small amplitude, 0.05 mag. I managed to remove the mean
magnitude from each run to find a reliable period estimate.
PDM analysis provided this candidate: Psh=2.3764h (cfr. the
orbital period: Porb=2.3767h).

I placed some curves on the web:

-
http://virtualtelescope.bellatrixobservatory.org/v1006cyg_lc1.gif
(photometric data from these two nights)

-
http://virtualtelescope.bellatrixobservatory.org/v1006cyg_phase1.gif
(data phased withh Psh=2.3764h)

Observations were carried out using the 28cm-f/8 part of the
Virtual Telescope project.

Tonight run is still ongoing.

Regards,
Gianluca Masi