What characteristic distinguishes a recurrent nova system from a classical nova system in terms of eruption frequency?

Answer

Recurrent novae erupt much more frequently, perhaps every few decades to a few centuries.

While classical novae may show only one eruption in recorded history, recurrent novae are known to have multiple eruptions occurring within observable human timescales.

What characteristic distinguishes a recurrent nova system from a classical nova system in terms of eruption frequency?

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