Nova Herculis 1934 (DQ Herculis)
Observations have revealed the system to be an eclipsing binary, composed of a white dwarf and a red dwarf, with an orbital period of only 4 hours 39 minutes. In addition, a flickering every 71 seconds – the shortest period of regular variations known, except for pulsars and compact X-ray objects – corresponds to the highly magnetic white dwarf's axial rotation.
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