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Ele Willoughby@minouette.bsky.social |
she was able to deduce a ground-breaking theory, which allowed Hubble's later insight about the age &expansion of the universe. Her period-luminosity relation for Cepheid variable stars radically changed modern astronomy, an accomplishment for which she received little recognition during her 🧵2:
1 replies 4 reposts 48 likes
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Ele Willoughby
@minouette.bsky.social
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lifetime. Cepheid variables are a class of pulsating star, named for Delta Cephei in the Cepheus constellation. The relationship between a Cepheid variable's luminosity and pulsation period is quite precise. It had not been obvious to tell whether a star was dim because it was less luminous, 🧵3/
1 replies 1 reposts 35 likes