Linked from

The 38 pages that link to Cepheid variable, each with the reason it gives.

• Cosmic distance ladderBroader topic: Cepheids transfer parallax-calibrated distances to galaxies beyond direct parallax reach.

• Apparent magnitudeBroader topic: Its apparent magnitude and pulsation period help determine distances.

• Edwin HubbleBroader topic: Hubble identified Cepheids in Andromeda and used them to estimate its distance.

• Andromeda GalaxyRelated: Cepheids in Andromeda provided a distance indicator that resolved its extragalactic status.

• Hubble tensionBroader topic: Cepheids calibrate distances to supernova-host galaxies in a leading ladder measurement.

• Stellar parallaxRelated: Parallax distances calibrate the Cepheid period–luminosity relation.

• Standard candleBroader topic: Its calibrated period–luminosity relation measures distances to nearby galaxies.

• Absolute magnitudeRelated: Its calibrated luminosity yields an absolute magnitude that helps determine distance.

• Light curveBroader topic: Its measured period helps determine distance from the observed light curve.

• Stellar luminosityBroader topic: Its calibrated luminosity makes it a distance indicator.

• Henrietta Swan LeavittRelated: Leavitt established that longer-period Cepheids are intrinsically brighter.

• Large Magellanic CloudRelated: Cepheids in the Cloud help calibrate the cosmic distance scale.

• Variable starBroader topic: Calibrated Cepheids provide distances to galaxies beyond the Milky Way.

• Distance modulusBroader topic: Cepheid absolute magnitudes provide distance moduli beyond the reach of direct parallax.

• Women in astronomyBroader topic: Leavitt’s period–luminosity relation made Cepheids essential distance markers.

• Harvard ComputersBroader topic: Leavitt’s measurements of these stars enabled a powerful astronomical distance method.

• PolarisNarrower topic: Polaris Aa is a classical Cepheid, linking this pole star to distance measurement.

• Harlow ShapleyRelated: Cepheids in globular clusters supplied distance estimates for Shapley’s map.

• Harvard College ObservatoryBroader topic: Leavitt’s Harvard measurements revealed the period–luminosity relation used to estimate cosmic distances.

• Small Magellanic CloudRelated: Cepheids in the Cloud help calibrate distance measurements beyond the Milky Way.

• Period–luminosity relationBroader topic: Classical Cepheids provide the relation’s best-known calibration for measuring extragalactic distances.

• Stellar pulsationBroader topic: Its period–luminosity relation makes it a cornerstone of the extragalactic distance scale.

• Magellanic CloudsRelated: Cepheids in the Clouds helped establish the extragalactic distance scale.

• Walter BaadeRelated: Baade showed that Cepheids in different populations required separate luminosity calibrations.

• Tip of the red giant branchCompared with: Cepheids provide an alternative stellar distance indicator, especially for young populations.

• Triangulum GalaxyBroader topic: Cepheids in M33 provide a standard-candle distance measurement.

• Bolometric luminosityBroader topic: Its calibrated luminosity helps establish distances beyond the Solar System.

• Adam RiessBroader topic: Cepheids anchor the distance calibration used in Riess’s supernova-based Hubble measurements.

• Messier 51Related: Cepheids in Messier 51 have been used to estimate the galaxy’s distance.

• RigelCompared with: Rigel varies, but it is not a Cepheid and does not serve as a standard candle by that relation.

• Type II CepheidNarrower topic: Type II Cepheids are a distinct low-mass branch of the Cepheid family.

• Messier 81Related: Cepheids in M81 help calibrate its distance.

• Time-domain astronomyBroader topic: Its measured pulsation period enables distance estimates from time-varying light.

• DenebCompared with: Unlike Cepheids, Deneb’s variations are irregular and do not provide a standard distance relation.

• Allan SandageBroader topic: Cepheids helped Sandage calibrate galaxy distances and revise the expansion-rate estimate.

• Pinwheel GalaxyBroader topic: Cepheids in Messier 101 provide distance estimates independent of its apparent size.

• Messier 106Related: Cepheids in Messier 106 provide an independent distance estimate to compare with maser geometry.

• Yellow supergiantBroader topic: Some yellow supergiants cross the instability strip and become Cepheid variables.