News tagged with planetary nebula

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A New Method of Estimating Stellar Distances

( -- The star Chi Cygni is located about 550 light-years away, in the direction of the constellation of Cygnus the Swan. It is a notable star because, unlike the sun which still burns hydrogen and is in its mature ...

dateDec 21, 2009 in Astronomy
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The Helix Nebula in new colors

( -- ESO's VISTA telescope, at the Paranal Observatory in Chile, has captured a striking new image of the Helix Nebula. This picture, taken in infrared light, reveals strands of cold nebular gas that are invisible ...

dateJan 19, 2012 in Astronomy
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Sakurai's Object: Stellar evolution in real time

( —Stellar lifetimes are measured in billions of years, so changes in their appearance rarely take place on a human timescale. Thus an opportunity to observe a star passing from one stage of life to another on ...

dateApr 02, 2014 in Astronomy
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A cosmic holiday ornament, Hubble-style

(—'Tis the season for holiday decorating and tree-trimming. Not to be left out, astronomers using NASA's Hubble Space Telescope have photographed a festive-looking nearby planetary nebula called NGC 5189. The intricate ...

dateDec 18, 2012 in Astronomy
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Hubble eyes a smoldering star

( —This new image, snapped by NASA/ESA Hubble Space Telescope, shows the star HD 184738, also known as Campbell's hydrogen star. It is surrounded by plumes of reddish gas—the fiery red and orange hues are caused ...

dateSep 23, 2013 in Astronomy
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Image: The ghost of a dying star

This extraordinary bubble, glowing like the ghost of a star in the haunting darkness of space, may appear supernatural and mysterious, but it is a familiar astronomical object: a planetary nebula, the remnants of a dying ...

dateAug 05, 2015 in Astronomy
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The Ring Nebula

The diversity of colours, shapes, and sizes of planetary nebulae make them fascinating objects. In this photo release Calar Alto presents a rather unique view combining both optical and near-infrared data of the Ring Nebula ...

dateNov 02, 2009 in Astronomy
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Stars akin to the Sun also explode when they die

The birth of planetary nebulae, resulting from the death of low and intermediate mass stars, is usually thought of as a slow process, in contrast with the intense supernovae that massive stars produce. But a recent study ...

dateFeb 16, 2015 in Astronomy
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New molecules around old stars

( —Using ESA's Herschel space observatory, astronomers have discovered that a molecule vital for creating water exists in the burning embers of dying Sun-like stars.

dateJun 17, 2014 in Astronomy
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