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RR Lyrae variable

space Maturity 5-7

Some stars change their light.

Rr lyrae ltcrv en.svg
Rr lyrae ltcrv en.svg
They grow bright and then dim. This happens many times. These stars help us find how far things are. They are very old stars. Do you like looking at the night sky?

41 words
🖼️ Images & Media (4)
File:HR-diag-instability-strip.svg
HR-diag-instability-strip.svg
File:M5 colour magnitude diagram.png
M5 colour magnitude diagram.png
File:Variable stars close to the Galactic Centre.jpg
Variable stars close to the Galactic Centre.jpg
File:Rr lyrae ltcrv en.svg
Rr lyrae ltcrv en.svg
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📚 Content adapted from Wikipedia | Readability: FK 13.6 | Vital Level 5