File:Different generations ESA18901085.tiff
From Wikimedia Commons, the free media repository
Jump to navigation
Jump to search
![File:Different generations ESA18901085.tiff](https://upload.wikimedia.org/wikipedia/commons/thumb/b/b5/Different_generations_ESA18901085.tiff/lossy-page1-616px-Different_generations_ESA18901085.tiff.jpg?20240821020921)
Size of this JPG preview of this TIF file: 616 × 600 pixels. Other resolutions: 247 × 240 pixels | 493 × 480 pixels | 789 × 768 pixels | 1,052 × 1,024 pixels | 2,104 × 2,048 pixels | 4,073 × 3,965 pixels.
Original file (4,073 × 3,965 pixels, file size: 92.45 MB, MIME type: image/tiff)
File information
Structured data
Captions
Captions
Star clusters are common structures throughout the Universe, each made up of hundreds of thousands of stars all bound together by gravity.
Summary
[edit]DescriptionDifferent generations ESA18901085.tiff |
English: Star clusters are common structures throughout the Universe, each made up of hundreds of thousands of stars all bound together by gravity. This star-filled image, taken with the NASA/ESA Hubble Space Telescope’s Wide Field Camera 3 (WFC3), shows one of them: NGC 1866. NGC 1866 is found at the very edges of the Large Magellanic Cloud, a small galaxy located near to the Milky Way. The cluster was discovered in 1826 by Scottish astronomer James Dunlop, who catalogued thousands of stars and deep-sky objects during his career. However, NGC 1866 is no ordinary cluster. It is a surprisingly young globular cluster situated close enough to us that its stars can be studied individually — no mean feat given the mammoth distances involved in studying the cosmos! There is still debate over how globular clusters form, but observations such as this have revealed that most of their stars are old and have a low metallicity. In astronomy, ‘metals’ are any elements other than hydrogen and helium; since stars form heavier elements within their core as they carry out nuclear fusion throughout their lifetimes, a low metallicity indicates that a star is very old, as the material from which it formed was not enriched with many heavy elements. It’s possible that the stars within globular clusters are so old that they were actually some of the very first to form after the Big Bang. In the case of NGC 1866, though, not all stars are the same. Different populations, or generations, of stars are thought to coexist within the cluster. Once the first generation of stars formed, the cluster may have encountered a giant gas cloud that sparked a new wave of star formation and gave rise to a second, younger, generation of stars — explaining why it seems surprisingly youthful. |
Date | 23 November 2018 (upload date) |
Source | Different generations |
Author | European Space Agency |
Other versions |
|
Activity InfoField | Space Science |
Mission InfoField | Hubble Space Telescope |
Licensing
[edit]![]() ![]() |
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:
|
![]() |
![w:en:Creative Commons](https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/CC_some_rights_reserved.svg/90px-CC_some_rights_reserved.svg.png)
![attribution](https://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Cc-by_new_white.svg/24px-Cc-by_new_white.svg.png)
This file is licensed under the Creative Commons Attribution 4.0 International license.
Attribution: ESA/Hubble & NASA; CC BY 4.0
- 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.
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 02:09, 21 August 2024 | ![]() | 4,073 × 3,965 (92.45 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://www.esa.int/var/esa/storage/images/esa_multimedia/images/2018/11/different_generations/18901075-1-eng-GB/Different_generations.tif via Commons:Spacemedia |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Width | 4,073 px |
---|---|
Height | 3,965 px |
Bits per component |
|
Compression scheme | Uncompressed |
Pixel composition | RGB |
Image data location | 38,600 |
Orientation | Normal |
Number of components | 3 |
Number of rows per strip | 3,965 |
Bytes per compressed strip | 96,896,670 |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop CC 2019 (Windows) |
File change date and time | 15:22, 15 November 2018 |
Color space | Uncalibrated |