Astronomer Henrietta Swan Leavitt discovered Cepheid variables, which helped prove the universe was bigger than the Milky Way. One of the many female scientists who have never gotten the recognition they deserved.

Astronomer Henrietta Swan Leavitt discovered Cepheid variables, which helped prove the universe was bigger than the Milky Way. Without Leavitt's work, we'd be saying "Edwin Hubble who?

Timelapse of Cepheid variable star RS Puppis taken by the Hubble Space Telescope. Light echoes ripple through the surrounding nebula as the star pulses in a 41 day cycle. #animatedgif

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Types of Variable Stars: Cepheid, Pulsating and Cataclysmic

Types of Variable Stars: Cepheid, Pulsating and Cataclysmic

This NASA/ESA Hubble Space Telescope image shows the spiral galaxy NGC 3021 which lies about 100 million light-years away in the constellation of Leo Minor (The Little Lion).  Among many other types of stars, this galaxy contains Cepheid variable stars, which can be used work out the distance to the galaxy. These stars pulsate at a rate that is closely related to their intrinsic brightness, so measurements of their rate of pulsation and their observed brightness give astronomers enough…

Hubble View of a Cosmological Measuring Tape

This NASA/ESA Hubble Space Telescope image shows the spiral galaxy NGC 3021 which lies about 100 million light-years away in the constellation of Leo Minor (The Little Lion).

Cepheid Variable Star RS Puppis

Cepheid Variable Star RS Puppis

Nasa’s Astronomy Picture Of The Day – Nearby Cepheid Variable RS Pup

Nasa’s Astronomy Picture Of The Day – Nearby Cepheid Variable RS Pup

RS Puppis, a Cepheid type variable star surrounded by a reflection nebula. Image taken by the Hubble Space Telescope

Light Echoes of Cepheid Variable RS Puppis Hubble Palette  Credit: NASA/Hubble, color/effects thedemon-hauntedworld

Light Echoes of Cepheid Variable RS Puppis Hubble Palette Credit: NASA/Hubble, color/effects thedemon-hauntedworld

Variable stars change brightness. There are many types, including Cepheid Variables, Pulsating and Cataclysmic Variable Stars.

Artist's impression of an eclipsing binary system that including a pulsating star called a Cepheid variable. Researchers have recently discovered a new type of variable star that pulsate in two frequencies, the ratio of which is surprising close to the fa

Cepheid variable - Wikipedia

Global Gallery Cepheid Variable Star Photographic Print on Wrapped Canvas Size:

Hubble image of variable star RS Puppis

This festive NASA Hubble Space Telescope image resembles a holiday wreath made of sparkling lights. The bright southern hemisphere star RS Puppis, at the center of the image, is swaddled in a gossamer cocoon of reflective dust illuminated by the.

Variable Stars -- Cepheid Variables--Henrietta leavitt

Detailed discussion of Cepheid variables, as an example of variable stars in general

Three Cepheid variable stars, pulsating stars used to measure distance and age of objects, are visible in this view of the heart of the Milky Way. This image was taken using the South African Astronomical Observatory and released Aug. 24, 2011. br /

Three Cepheid variable stars, pulsating stars used to measure distance and age of objects, are visible in this view of the heart of the Milky Way. This image was taken using the South African Astronomical Observatory and released Aug.

HubbleSite - Picture Album.NGC 4603 Observations of a type of pulsing star called a Cepheid variable in this galaxy helped astronomers using Hubble precisely measure the expansion rate of the universe. Researchers found 36-50 Cepheid variable stars in NGC 4603. This is the most distant galaxy in which Cepheid variables have been found. See more info at site.

Astronomers Confirm That Is The Oldest Spiral Galaxy Ever Discovered Outside Our Own - The Inquisitr

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