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Cepheid variable

A Cepheid variable (/ˈsɛfi.ɪd, ˈsiːfi-/) is a type of variable star that pulsates radially, varying in both diameter and temperature. It changes in brightness, with a well-defined stable period (typically 1–100 days) and amplitude. Cepheids are important cosmic benchmarks for scaling galactic and extragalactic distances; a strong direct relationship…

History, Classes & Uncertain distances

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Etymology

History

Classes

Uncertain distances

Pulsation model

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Cepheid variable

Nodes98
Edges97
Triples51
Avg. degree1.98
Density0.020408
Components1

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Cepheid variable

Top relations

related to history · 18
Cepheid variable → Cepheid, Cepheids, Delta Cephei, Edward Pigott, Eta Aquilae, Geminids, Geminorum, Harlow Shapley, Henrietta Swan Leavitt, However, John Goodricke, Magellanic Clouds, Most, On September, Shapley, She, The, Two
related to Classical Cepheids · 14
Cepheid variable → Carinae, Cepheids, Classical Cepheids, Delta Cepheid, F6, Galaxy's, Hubble, K2, Local Group, Milky Way, Population, Sun, Sun's, These Cepheids
related to Classes · 6
Cepheid variable → A-type, Cepheid, Cepheids, Delta Scuti, II Cepheids, RR Lyrae
related to Anomalous Cepheids · 5
Cepheid variable → Anomalous Cepheid, II Cepheids, It, RR Lyrae, Sun
related to Double-mode Cepheids · 1
Cepheid variable → Cepheid

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Important terminology

cepheids cepheid classical helium variables type ionized stars ii star pulsation period distance variable doubly luminosity hubble known distances delta

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
RS Puppisinstance ofcalibrated by direct observation of the parallax distance to the closest Cepheids0.80text
Polaris.Cepheids change brightness due to the κinstance ofcalibrated by direct observation of the parallax distance to the closest Cepheids0.80text
RS Puppis.Delta Cephei is also of particular importance as a calibrator of the Cepheid period-luminosity relation since its distance is among the most precisely established for a Cepheidinstance ofdue in part to discoveries0.80text
partly because it is a member of a star clusterinstance ofdue in part to discoveries0.80text
the availability of precise parallaxes observed by the Hubbleinstance ofdue in part to discoveries0.80text
Hipparcosinstance ofdue in part to discoveries0.80text
and Gaia space telescopesinstance ofdue in part to discoveries0.80text
Cepheid variablerelated to Anomalous CepheidsRR Lyrae0.60section
Cepheid variablerelated to Anomalous CepheidsAnomalous Cepheid0.60section
Cepheid variablerelated to Anomalous CepheidsII Cepheids0.60section
Cepheid variablerelated to Anomalous CepheidsSun0.60section
Cepheid variablerelated to Anomalous CepheidsIt0.60section

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