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We present observations and analysis of the 2009 outburst of the unusualdwarf nova V630 Cas which is only the third recorded outburst of this star. Theoutburst lasted about 104 days, with the rise to maximum being slightly slowerthan the decline, which we interpret as an inside-out outburst. At is brightestit had V = 14.0, 2.3 magnitudes above the mean quiescence magnitude. Thecharacteristics of the outburst are similar to several other long orbitalperiod dwarf novae.

The 2009 Outburst of V630 Cassiopeiae