Multiple Major Outbursts from a Restless Luminous Blue Variable in NGC 3432

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We present new photometric and spectroscopic observations of an unusual luminous blue variable (LBV) in NGC 3432, covering three major outbursts in October 2008, April 2009 and November 2009.

• Previously, this star experienced an outburst also in 2000 (known as SN 2000ch).
• During outbursts the star reached an absolute magnitude between -12.1 and -12.8.
• Its spectrum showed H, He I and Fe II lines with P-Cygni profiles during and soon after the eruptive phases, while only intermediate-width lines in pure emission (including He II 4686A were visible during quiescence.