Mira variable

Rarity: Uncommon

A topic a little better known than average, read and translated beyond its own country.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

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What Wikipedia says

Mira variables (; named for the prototype star Mira) are a class of pulsating stars characterized by very red colours, pulsation periods longer than 100 days, and amplitudes greater than one magnitude in infrared and 2.5 magnitude at visual wavelengths.

Excerpt from the Wikipedia article “Mira variable”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: DSS 2/ESO, CC BY 4.0, via Wikimedia Commons.