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kow [346]
3 years ago
12

The significant feature of a Cepheid variable is that there is a relationship between two intrinsic parameters, one of which can

be easily measured, while knowledge of the other parameter is required. These parameters are:
Physics
1 answer:
Ghella [55]3 years ago
5 0

Answer:

Period of brightness variation and luminosity.

Explanation:

The Cepheid variables are used as distance indicators. This requires estimation of periods and (usually) intensity-mean magnitudes in order to establish a period—apparent luminosity relation. It is particularly important for the techniques employed to be as accurate and efficient as possible.

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