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A nova remnant is made up of the materials left behind by the gigantic explosion of a star in a nova. It has an
220px-Tpyx hst big-1-

The nova remnant surrounding the recurrent nova T Pyxidis

expansion velocity of 1000 km/s usually, and has a lifetime of a few centuries. Nova remnants are much less massive than supernova remnants or planetary nebulae.

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