Concept information
Terme préférentiel
BY Draconis star
Définition(s)
- A BY Draconis star is a type of rotating variable dwarf star, of spectral type G, K or M, that shows quasiperiodic light changes, ranging from a few hundredths to 0.5 magnitude, with a period from a few hours up to 120 days. The variations are due to surface features, such as starspots, passing in and out of view, as the star spins on its axis. Some of these stars also show flares, similar to UV Ceti stars, in which case they belong to both types of variable star. (Encyclopedia of Science, by David Darling, https://www.daviddarling.info/encyclopedia/B/BY_Draconis_star.html)
Concept(s) générique(s)
Traductions
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français
URI
http://data.loterre.fr/ark:/67375/MDL-F8M7008D-V
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