File:Size can be deceptive ESO 553-46.jpg
Original file (1,280 × 638 pixels, file size: 142 KB, MIME type: image/jpeg)
This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
DescriptionSize can be deceptive ESO 553-46.jpg |
English: As far as galaxies are concerned, size can be deceptive. Some of the largest galaxies in the Universe are dormant, while some dwarf galaxies, such as ESO 553-46 imaged here by the NASA/ESA Hubble Space Telescope, can produce stars at a hair-raising rate. In fact, ESO 553-46 has one of the highest rates of star formation of the 1000 or so galaxies nearest to the Milky Way. No mean feat for such a diminutive galaxy!
Clusters of young, hot stars are speckling the galaxy, burning with a fierce blue glow. The intense radiation they produce also causes surrounding gas to light up, which is bright red in this image. The small mass and distinctive colouring of galaxies of this type prompted astronomers to classify them, appropriately, as blue compact dwarfs (BCD). Lacking the clear core and structure that many larger galaxies — such as the Milky Way — have, BCDs such as ESO 553-46 are composed of many large clusters of stars bound together by gravity. Their chemical makeup is interesting to astronomers, since they contain relatively little dust and few elements heavier than helium, which are produced in stars and distributed via supernova explosions. Such conditions are strikingly similar to those that existed in the early Universe, when the first galaxies were beginning to form. |
Date | |
Source | https://www.spacetelescope.org/images/potw1741a/ |
Author | ESA/Hubble & NASA |
Licensing
ESA/Hubble images, videos and web texts are released by the ESA under the Creative Commons Attribution 4.0 International license and may on a non-exclusive basis be reproduced without fee provided they are clearly and visibly credited. Detailed conditions are below; see the ESA copyright statement for full information. For images created by NASA or on the hubblesite.org website, or for ESA/Hubble images on the esahubble.org site before 2009, use the {{PD-Hubble}} tag.
Conditions:
Notes:
|
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
Items portrayed in this file
depicts
9 October 2017
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 14:29, 9 October 2017 | 1,280 × 638 (142 KB) | Jmencisom | User created page with UploadWizard |
File usage
The following page uses this file:
Global file usage
The following other wikis use this file:
- Usage on af.wikipedia.org
- Usage on bg.wikipedia.org
- Usage on bn.wikipedia.org
- Usage on de.wikipedia.org
- Usage on es.wikipedia.org
- Usage on eu.wikipedia.org
- Usage on hi.wikipedia.org
- Usage on it.wikipedia.org
- Usage on mk.wikipedia.org
Metadata
This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
If the file has been modified from its original state, some details may not fully reflect the modified file.
Credit/Provider | ESA/Hubble & NASA |
---|---|
Source | ESA/Hubble |
Short title |
|
Image title |
|
Usage terms |
|
Date and time of data generation | 06:00, 9 October 2017 |
Software used | Adobe Photoshop CC 2017 (Windows) |
File change date and time | 09:53, 19 June 2017 |
Date and time of digitizing | 23:57, 1 September 2012 |
Date metadata was last modified | 11:53, 19 June 2017 |
Unique ID of original document | uuid:4AD2B6435EF4E1118D8CA71E43F92BA7 |
Copyright status | Copyright status not set |
Keywords | ESO 553-46 |
Contact information |
Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |
IIM version | 4 |