Pulsating Variables

Cepheid variables are yellow supergiants with more than three times the mass of the Sun. They pulsate in periods of a few days, and astronomers can plot their changing brightness over time on a "light curve" that shows a sharp rise to maximum brightness followed by a slower fall to minimum.

Time eclipsing variables

Arising from a line-of-sight effect seen in some binary systems, eclipsing variables are one of the easiest types of variable to understand. They occur when the members of a binary star system pass in front of and behind each other as seen from Earth. When the stars are seen alongside each other, their light output is combined, giving maximum brightness. When one star disappears entirely or partially behind its companion, the total output of light is reduced, and the star abruptly drops in brightness.

star dims when slight dimming brighter star is when fainter star eclipsed is eclipsed light curve is steady with sudden changes during eclipses^

star dims when slight dimming brighter star is when fainter star eclipsed is eclipsed light curve is steady with sudden changes during eclipses^

LiGHT CURVE Of ECLiPSiNG VARiABLE

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LiGHT CURVE Of ECLiPSiNG VARiABLE

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