Cepheid

usgb/ˈsiːfiːɪd/
noun

A cepheid is a type of star that varies in brightness at regular intervals, making it easy to use for measuring distances across space.

Astronomers use cepheid variables to determine the distance to far-off galaxies.
Visual representation of "cepheid" - A cepheid is a type of star that varies in brightness at regular intervals, making it easy to use for measuring distances across space.

Often appears as...

  • cepheid variable
  • Cepheid distance measurement

Usage tips

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Technical

Definition 1 of 1
Visual representation of "cepheid"
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Understanding Context

When discussing celestial objects, it's important to identify what role a cepheid plays in measuring distances.

Illustration for Understanding Context
For example, notice how cepheids are often compared to standard candles in astronomy.
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Scientific Importance

Cepheids are crucial for establishing the scale of the universe due to their reliability in distance measurement.

Illustration for Scientific Importance
Many discussions in astronomy will highlight their significance in cosmic distance ladder studies.
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Diverse Usage

The term may appear in discussions that involve interpreting light curves and pulsation periods as part of stellar evolution studies.

Illustration for Diverse Usage
Be aware that cepheid characteristics can provide insights into broader astrophysical phenomena.
Visual representation of the word "Cepheid"

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