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[vsnet-campaign-dn 2846] SDSSp J173008.38+624754.7 observation from Arto Oksanen

SDSSp J173008.38+624754.7 observation from Arto Oksanen

Dear Colleagues,

    We have received the following report and data from Arto Oksanen.
The full analysis of the data will be reported by Uemura-san.

Dear Sirs,

Here is my dataset of SDSSj1730+62 run last night from Nyrola. The star is
still bright CV=13.7-14.1 and shows superhumps.

Unfiltered 30s exposures with 0.40 m SCT + ST7E CCD.

Observation timespan Sep 11 21:43 - Sep 12 00:46 UT. Clear sky, but very
high humidity. Condensation on corrector plate decreased photometry
severely. In addition much of aurora interference. Hopefully data is still
useable.

The reference star (C) is now TYC 4203 749 1 (VT=10.056) and the check star
(K) is the last night comparison R=12.8 USNOA2.0 star W of variable (GSC
4203:664).

Lightcurve:
http://nyrola.jklsirius.fi/ccd/2002/data0911/SDSS173020020911.jpg

Observer: A. Oksanen

best regards,

arto
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