 Spectroscopic analysis and calculation gave an estimate of 125 parsecs (407.5 light years).The system consists of a white dwarf and a donor star which orbit around a common centre of gravity every 1.5 hours.The white dwarf sucks matter from the other star onto an accretion disc and periodically erupts, reaching apparent magnitude 11.2 in superoutbursts, 12.1 in normal outbursts and remaining at magnitude 16.7 when quiet.