Hubble Took A Beautiful Photo Of A Barred Spiral Galaxy
G. Clay Whittaker
at 09:57 AM May 9 2016
Hubble Took A Beautiful Photo Of A Barred Spiral Galaxy
NGC 4394, The Archetypal Barred Spiral Galaxy
NASA

Hubble is still teaching us so many years later. Case in point: today the telescope team tweeted a beautiful shot of a barred spiral galaxy. This one is not new--it was discovered in 1784 by German-British astronomer William Herschel.

NGC 4394 is located about 55 million light years from Earth in the Virgo Cluster. It's in the constellation of Coma Berenices (Berenice's Hair).

What is a barred spiral galaxy? NASA explains:

At the center of NGC 4394 lies a region of ionized gas known as a low-ionization nuclear emission-line region (LINER). LINERs are active regions that display a characteristic set of emission lines in their spectra— mostly from weakly ionized atoms of oxygen, nitrogen and sulphur.

Explore the tweet to learn more:

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