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Date: Fri, 17 Oct 2003 10:00:54 +0200 From: "Berto Monard" <lagmonar@csir.co.za> Hi all, My explorations might have led to another interesting discovery amongst the recently released SDSS CV stars. This one could well be another UGSU type dwarf nova. I cannot recall exact dates but SDSS 0407-06 (SDSS J040714.8-064425 is the complete name) has been showing several active states since July 2003. I now think they were normal outbursts and it could be that I caught it in a superoutburst now. Possibly it had another S/O around 19 July. SDSS 0407-06 is listed as an eclipsing cv around magnitude 17.7g in the SDSS release. A Henden must have measured this star at least once. The light curves show modulations with 0.2mag amplitudes during previous outbursts and also during the present probable superoutburst. However the eclipses are much deeper now and reach 2.5mag as compared to about 0.5mag during normal outbursts. The present light curve is very reminiscent of that of V2051 Oph with those deep eclipses. The present brightness (outside eclipses) is around 14.2CR and was closer to 15CR during previously observed active states. The star's 2000 position is depicted in its name. Some 1.5' N of it is a suitable comparison (C) star at 13.1R (USNO-B1.0). Somewhat E of V is a convenient K star of similar brightness to the outbursting V. I don't know if Joe would like us to campaign on it... but it's an equatorial star and reachable from both hemispheres. Although most Northerners tend to think that all nice starfields and deep sky treasures are located far in the South, my impression over the years is that the richest harvests are near the equator. Regards and enjoy your observing, Berto Monard Bronberg Observatory / CBA Pretoria
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