We present photometry of the first reported superoutburst of the dwarf nova VSX J074727.6+065050 during 2008 January and February. At its brightest the star reached magnitude 11.4 and this was followed by a slow decline at 0.09 mag/d for 19 days, corresponding to the plateau phase. There was then a rapid decline at 1.66 mag/d to a temporary minimum at magnitude 16.6 where it stayed for 2 to 3 days after which there were six remarkable echo outbursts before the star gradually faded back towards quiescence at ~magnitude 19.5.
Journal of the British Astronomical Association
- Pub Date:
- December 2009
- Astrophysics - Solar and Stellar Astrophysics
- 20 pages, 11 figures. Accepted for publication in the Journal of the British Astronomical Association