Yes: Betelgeuse is a semiregular variable star so it is classed as a pulsating star.
mooohiytsert
Distance.
malay ko...
Williamina Fleming discovered more than 10,000 stars, in which she discovered 59 gaseous nebulae, 310 variable stars and 10 novae.
Cepheid Variables.
RR Lyrae variables are variable stars often used as standard candles. RR Lyrae are pulsating horizontal branch stars.
Yes: Betelgeuse is a semiregular variable star so it is classed as a pulsating star.
A Cepheid is a member of a class of pulsating variable stars. The relationship between a Cepheid variable's luminosity and pulsation period is quite precise, securing Cepheids as viable standard candles and the foundation of the Extragalactic Distance Scale.
mooohiytsert
No, they are completely different. See related questions
Variable stars are those that have changing luminosities. There are two kinds of variable stars: intrinsic (where the variation is due to physical changes in the star), and extrinsic (where the variation is due to the eclipse of one star by another, or due to the effect of stellar rotation). They can be further divided into five different classes: the intrinsic pulsating, cataclysmic, eruptive variables, extrinsic eclipsing binary, and rotating stars.
Leon Campbell has written: 'The story of variable stars' -- subject(s): Stars, Variable, Variable stars
That refers to star that change their size, and therefore their brightness, in a repetitive pattern.
W. Strohmeier has written: 'Variable stars' -- subject(s): Variable stars
stars shining stars shining
It really depends on the type of star, but for certain star types, there is a relationship between the period and the absolute brightness, so if the period is observed, the absolute brightness can be deduced. Yes. It seems like this question is about the Cepheid variables.