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We present photometry obtained during the 2012 May and September outbursts ofthe frequently outbursting dwarf nova, V1227 Her. Superhumps were present inboth cases with a peak-to peak amplitude of up to 0.28 mag, showing theseevents to be superoutbursts. We show for the first time that the systemundergoes small eclipses with a depth of up to 0.08 mag, lasting 11 to 14 min,which are likely to be grazing eclipses of the accretion disc. The Septemberoutburst was the better observed of the two and lasted at least 14 days with anoutburst amplitude of approximately 4 magnitudes. The mean superhump period wasPsh = 0.065103(20) d. Analysis of eclipse times of minimum gave an orbitalperiod Porb = 0.064419(26) d, although there is some ambiguity due to therelatively short time over which the eclipses were observed. The fractionalsuperhump period excess, epsilon, was 0.0106(7).

Superoutbursts and grazing eclipses in the dwarf nova V1227 Herculis