Dosya:Potw1508a.tif

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Özet

Açıklama
English: A galactic cloak for an exploding star


The galaxy pictured here is NGC 4424, located in the constellation of Virgo. It is not visible with the naked eye but has been captured here with the NASA/ESA Hubble Space Telescope.

Although it may not be obvious from this image, NGC 4424 is in fact a spiral galaxy. In this image it is seen more or less edge on, but from above you would be able to see the arms of the galaxy wrapping around its centre to give the characteristic spiral form .

In 2012 astronomers observed a supernova in NGC 4424 — a violent explosion marking the end of a star’s life. During a supernova explosion, a single star can often outshine an entire galaxy. However, the supernova in NGC 4424, dubbed SN 2012cg, cannot be seen here as the image was taken ten years prior to the explosion. Along the central region of the galaxy, clouds of dust block the light from distant stars and create dark patches.

To the left of NGC 4424 there are two bright objects in the frame. The brightest is another, smaller galaxy known as LEDA 213994 and the object closer to NGC 4424 is an anonymous star in our Milky Way.

A version of this image was entered into the Hubble's Hidden Treasures image processing competition by contestant Gilles Chapdelaine.

Credit:

ESA/Hubble & NASA Acknowledgement: Gilles Chapdelaine

About the Object 

Name:	NGC 4424
Type:	• Local Universe : Galaxy : Type : Spiral
       • X - Galaxies Images/Videos
Distance:	50 million light years
Constellation:	Virgo

Colours & filters Band Wavelength Telescope 

Optical V 	606 nm 	Hubble Space Telescope WFPC2
Infrared I 	814 nm 	Hubble Space Telescope WFPC2
.
Tarih Release 23 February 2015, 10:00
Kaynak http://www.spacetelescope.org/images/potw1508a/ http://www.spacetelescope.org/static/archives/images/original/potw1508a.tif
Yazar

Credit: ESA/Hubble & NASA

Acknowledgement: Gilles Chapdelaine

Lisanslama

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güncel11.38, 23 Şubat 201511.38, 23 Şubat 2015 tarihindeki sürümün küçültülmüş hâli940 × 921, 2 sayfa (1,83 MB)Fabian RRRR=={{int:filedesc}}== {{Information |description={{en|1=''A galactic cloak for an exploding star The galaxy pictured here is NGC 4424, located in the constellation of Virgo. It is not visible with the naked eye but has been captured here with the NAS...

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