white dwarf stars

Rare White Dwarf Systems Do A Doubletake

by Tammy Plotner December 20, 2013

For those of us who remain forever fascinated by astronomy, nothing could spark our imaginations more than a cosmic curiosity. In this case, the unusual object is a star cataloged as AM Canum Venaticorum (AM CVn) located in the constellation of Canes Venatici. What makes this dual star system of interest? Try the fact that […]

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Hubble Observes Planet-“Polluted” Dead Stars In Hyades

by Tammy Plotner May 10, 2013

For those of us who practice amateur astronomy, we’re very familiar with the 150 light-year distant Hyades star cluster – one of the jewels in the Taurus crown. We’ve looked at it countless times, but now the NASA/ESA Hubble Space Telescope has taken its turn observing and spotted something astronomers weren’t expecting – the debris […]

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NSV 11749 – Born Again and Grown Old

by Jon Voisey December 3, 2011

In 1996, a Japanese amateur astronomer discovered a new star in the constellation Sagittarius. Dubbed V4334 Sgr, astronomers initially expected it to be a typical novae, but closer examination revealed it to be a previously predicted but unseen event known as a “Very Late Thermal Pulse” (VLTP), the last hurrah of a white dwarf as […]

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Uncloaking Type Ia Supernovae

by Tammy Plotner October 6, 2011

Type Ia supernovae… Right now they are one of the most studied – and most mysterious – of all stellar phenomenon. Their origins are sheer conjecture, but explaining them is only half the story. Taking a look back into almost the very beginnings of our Universe is what it’s all about and a team of […]

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Milky Way Harbors “Ticking Time Bombs”

by Tammy Plotner September 7, 2011

According to new research, the only thing that may be keeping elderly stars from exploding is their rapid spin. In a galaxy filled with old stars, this means we could literally be sitting on a nearby “time bomb”. Or is this just another scare tactic? Tammy Plotner on Google+

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