When we measure distances to very faint galaxies with Type Ia supernovae,the accuracy of the measurement is only as good as that of the calibration of the Cepheids.

Question

Quizplus · Accepted Answer

Type Ia supernovae are used as "standard candles" to measure distances to very faint galaxies, but their accuracy depends on the calibration of Cepheid variable stars, which are used to determine the true brightness of the supernova.

When We Measure Distances to Very Faint Galaxies with Type