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We present the recent discovery of a new subdwarf B variable (sdBV), with anexceptionally low surface gravity. Our spectroscopy of J20136+0928 places it atTeff = 32100 +/- 500, log(g) = 5.15 +/- 0.10, and log(He/H) = -2.8 +/- 0.1.With a magnitude of B = 12.0, it is the second brightest V361 Hya star everfound. Photometry from three different observatories reveals a temporalspectrum with eleven clearly detected periods in the range 376 to 566 s, and atleast five more close to our detection limit. These periods are unusually longfor the V361 Hya class of short-period sdBV pulsators, but not unreasonable forp- and g-modes close to the radial fundamental, given its low surface gravity.Of the ~50 short period sdB pulsators known to date, only a single one has beenfound to have comparable spectroscopic parameters to J20136+0928. This is theenigmatic high-amplitude pulsator V338 Ser, and we conclude that J20136+0928 isthe second example of this rare subclass of sdB pulsators located well abovethe canonical extreme horizontal branch in the HR diagram.

GALEX J201337.6+092801: The lowest gravity subdwarf B pulsator