What property allows astronomers to potentially use classical novae to measure distances across the Milky Way?

Answer

The remarkable similarity in their peak absolute brightness.

Because the trigger mechanism is tied to reaching a specific critical mass for ignition, many classical novae achieve a consistent maximum luminosity, allowing them to function as standard candles for galactic distance measurements.

What property allows astronomers to potentially use classical novae to measure distances across the Milky Way?

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