PV Telescopii variable is a type ofvariable star that is established in theGeneral Catalogue of Variable Stars with the acronym PVTEL. This class of variables are defined as "helium supergiantBp stars with weak hydrogen lines and enhanced lines of He and C".^[2] That is, the hydrogen spectral lines of these stars are weaker than normal for a star ofstellar class B, while the lines of helium and carbon are stronger. They are a type ofextreme helium star.

The prototype for this category of variable isPV Telescopii, which undergoes small but complex luminosity variations andradial velocity fluctuations.^[3] The PV Tel stars are extremely hydrogen-deficient compared to other B-class stars and vary in luminosity on time scales ranging from a few hours to several years.^[4] As of 2008, there are twelve confirmed PV Tel variables in theGeneral Catalogue of Variable Stars.^[2]

PV Telescopii variables are subdivided into three distinct types on the basis ofspectral type: type I represents late B and A stars, type II represents O and early B, and type III represents F and G stars. The type III stars are always carbon-rich and hydrogen-deficient, while the type I and II stars do not necessarily have an excess of carbon. The hotter types pulsate more quickly than the cooler types.^[5]

The following list contains selected PV Telescopii variable that are of interest to amateur or professional astronomy. Unless otherwise noted, the given magnitudes are in theV-band.^{[citation needed]}

• PV Telescopii variables

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