News tagged with cepheid

VISTA stares right through the Milky Way

A new image taken with ESO's VISTA survey telescope reveals the Trifid Nebula in a new light. By observing in infrared light, astronomers can see right through the central parts of the Milky Way and spot many previously hidden ...

dateFeb 04, 2015 in Astronomy
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RS Puppis puts on a spectacular light show

The NASA/ESA Hubble Space Telescope has observed the variable star RS Puppis over a period of five weeks, showing the star growing brighter and dimmer as it pulsates. These pulsations have created a stunning example of a ...

dateDec 17, 2013 in Astronomy
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Hubble views the star that changed the universe

( -- Though the universe is filled with billions upon billions of stars, the discovery of a single variable star in 1923 altered the course of modern astronomy. And, at least one famous astronomer of the time ...

dateMay 23, 2011 in Astronomy
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The dusty disc of NGC 247

This image of NGC 247, taken by the Wide Field Imager on the MPG/ESO 2.2-metre telescope at ESO's La Silla Observatory in Chile, reveals the fine details of this highly inclined spiral galaxy and its rich backdrop. Astronomers ...

dateMar 02, 2011 in Astronomy
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The little Cepheid that stopped

When Hubble first discovered a Cepheid variable in the galaxy M31, the universe grew. Previously, many astronomers had held that the fuzzy “spiral nebulae” were small patches of gas and dust within our own galaxy, ...

dateJan 14, 2011 in Astronomy
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Cosmology standard candle not so standard after all

( -- Astronomers have turned up the first direct proof that "standard candles" used to illuminate the size of the universe, termed Cepheids, shrink in mass, making them not quite as standard as once thought. The ...

dateJan 12, 2011 in Astronomy
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A New class for Tau Scorpii

Many classes of stars are named for an early, distinguished member of a certain type of stars. For example, Cepheid variables take their namesake from the periodic variable Delta Cephei, first recognized by John Goodricke, ...

dateDec 22, 2010 in Astronomy
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