File:Hubble Sees a Stellar "Sneezing Fit" (11467249715).jpg
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IbsaHubble Sees a Stellar "Sneezing Fit" (11467249715).jpg |
English: Look at the bright star in the middle of this image. It appears as if it just sneezed. This sight will only last for a few thousand years — a blink of an eye in the young star's life.
If you could carry on watching for a few years you would realize it's not just one sneeze, but a sneezing fit. This young star is firing off rapid releases of super-hot, super-fast gas, like multiple sneezes, before it finally exhausts itself. These bursts of gas have shaped the turbulent surroundings, creating structures known as Herbig-Haro objects. These objects are formed from the star's energetic "sneezes." Launched due to magnetic fields around the forming star, these energetic releases can contain as much mass as our home planet, and cannon into nearby clouds of gas at hundreds of kilometers/miles per second. Shock waves form, such as the U-shape below this star. Unlike most other astronomical phenomena, as the waves crash outwards, they can be seen moving across human timescales of years. Soon, this star will stop sneezing, and mature to become a star like our sun. This region is actually home to several interesting objects. The star at the center of the frame is a variable star named V633 Cassiopeiae, with Herbig-Haro objects HH 161 and HH 164 forming parts of the horseshoe-shaped loop emanating from it. The slightly shrouded star just to the left is known as V376 Cassiopeiae, another variable star that has succumbed to its neighbor's infectious sneezing fits; this star is also sneezing, creating yet another Herbig-Haro object — HH 162. Both stars are very young and are still surrounded by dusty material left over from their formation, which spans the gap between the two. |
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Lakkaddaa | https://www.flickr.com/photos/gsfc/11467249715/; see also http://www.spacetelescope.org/images/potw1350a/ |
Barreessaa | ESA/Hubble & NASA, Acknowledgement: Gilles Chapdelaine |
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This image was originally posted to Flickr by NASA Goddard Photo and Video at https://flickr.com/photos/24662369@N07/11467249715. It was reviewed on 2016-10-13 18:51:40 by FlickreviewR, who found it to be licensed under the terms of the cc-by-2.0, which is compatible with the Commons. It is, however, not the same license as given above, and it is unknown whether that license ever was valid. |
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ||
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Source | ESA/Hubble |
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Credit/Provider | ESA/Hubble & NASAAcknowledgement: Gilles Chapdelaine |
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Date and time of data generation | 10:00, 16 Muddee 2013 |
Keywords | HH 164 |
Contact information |
http://www.spacetelescope.org/ Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |