Science News

... from universities, journals, and other research organizations

A Galaxy Blooming With New Stars

Dec. 19, 2011 — The VLT Survey Telescope (VST) has captured the beauty of the nearby spiral galaxy NGC 253. The new portrait is probably the most detailed wide-field view of this object and its surroundings ever taken. It demonstrates that the VST, the newest telescope at ESO's Paranal Observatory, provides broad views of the sky while also offering impressive image sharpness.


Share This:

NGC 253 gleams about eleven and a half million light-years away in the southern constellation of Sculptor. It is often just called the Sculptor Galaxy, although other descriptive names include the Silver Coin or Silver Dollar Galaxy. It is easy to get a good look at NGC 253 through binoculars as it is one of the brightest galaxies in the sky after the Milky Way's closest, big galactic neighbour, the Andromeda Galaxy.

Astronomers have noted the widespread active star formation in NGC 253 and labelled it a "starburst" galaxy. The many bright clumps dotting the galaxy are stellar nurseries where hot young stars have just ignited. The radiation streaming from these giant blue-white babies makes the surrounding hydrogen gas clouds glow brightly (green in this image).

This nearby spiral galaxy was discovered by the German-British astronomer Caroline Herschel, the sister of the famed astronomer William Herschel, as she searched for comets in 1783. The Herschels would have been delighted by the crisp, richly detailed view of NGC 253 that the VST can provide.

This latest image of NGC 253 was taken during VST's science verification phase -- when the telescope's scientific performance is assessed before it enters operations. The VST data are being combined with infrared images from VISTA  to identify the younger generations of stars in NGC 253. This picture is more than 12 000 pixels across and the superb sky conditions at ESO's Paranal Observatory, combined with the fine telescope optics, result in sharp star images over the entire image.

The VST is a 2.6-metre wide-field survey telescope with a one-degree field of view -- twice as broad as the full Moon [2]. The VST programme is a joint venture between the INAF-Osservatorio Astronomico di Capodimonte, Naples, Italy and ESO. The 268-megapixel camera OmegaCAM at its heart is designed to map the sky both quickly and with very fine image quality. VST is the largest telescope in the world designed to exclusively survey the sky in visible light, complementing ESO's VISTA infrared survey telescope, also located at Paranal.

Share this story on Facebook, Twitter, and Google:

Other social bookmarking and sharing tools:

|

Story Source:

The above story is based on materials provided by European Space Agency (ESA).

Note: Materials may be edited for content and length. For further information, please contact the source cited above.


APA

MLA

Note: If no author is given, the source is cited instead.

Search ScienceDaily

Number of stories in archives: 140,690

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily's archives for related news topics,
the latest news stories, reference articles, science videos, images, and books.

Recommend ScienceDaily on Facebook, Twitter, and Google:

Other social bookmarking and sharing services:

|

 
Interested in ad-free access? If you'd like to read ScienceDaily without ads, let us know!
  more breaking science news

Social Networks


Follow ScienceDaily on Facebook, Twitter,
and Google:

Recommend ScienceDaily on Facebook, Twitter, and Google +1:

Other social bookmarking and sharing tools:

|

Breaking News

... from NewsDaily.com

  • more science news

In Other News ...

  • more top news

Science Video News


Einstein Rings

Images from the Hubble telescope reveal eight new Einstein rings, joining only three others previously known. Einstein rings are pairs of galaxies,. ...  > full story

Strange Science News

 

Free Subscriptions

... from ScienceDaily

Get the latest science news with our free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Feedback

... we want to hear from you!

Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?