1. cepheid - Noun
2. cepheid - Adjective
(astronomy) Relating to cepheid variables.
(zoology) Of or pertaining to the family Cepheidae
(astronomy) A cepheid variable.
(zoology) Any jellyfish in the family Cepheidae
Source: en.wiktionary.orgBecause of this, astronomers used several Cepheid variables in NGC 4639 to calibrate type 1a supernovae as standard candles for more distant galaxies. Source: Internet
Later, it was found that RR Lyrae variables are fainter than Cepheid variables, which caused Shapley to overestimate the distance to the clusters. citation NGC 7006 is a highly concentrated, Class I globular cluster. Source: Internet
And to measure things like that we want to have supernovae in the same galaxy as some other distance indicator like a Cepheid Variable or a maser. Source: Internet
Field Application Specialist (Southern Spain - Seville) - CEP001741 About Us At Cepheid, we are passionate about improving healthcare through faster, more. Source: Internet
For example, at the Harvard Observatory Henrietta Swan Leavitt discovered the cepheid variable star period-luminosity relation which she further developed into a method of measuring distance outside of our solar system. Source: Internet
Polaris, the brightest star in the constellation, is a yellow-white supergiant and the brightest Cepheid variable star in the night sky, ranging from an apparent magnitude of 1.97 to 2.00. Source: Internet