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RV Tauri

RV Tauri stars are giants which are probably between a Delta Cepheid and a Mira variable. They pulsate semi-regularly with a main and a minor maximum. Many of them are surrounded by a dust cloud. This kind of stars is poorly explored and the known facts are rare. RV Tauri itself has a period of about 79 days.

Constellation: Taurus
Distance: circa 20 000 light-years
Spectral class: G2 - M2
Visual magnitude: 9.8 13.3
Mass: circa 6.5 * Sun

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    RV Tauri
Photo: ESO Online Digitized Sky Survey

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