File:Webb’s view of NGC 6440 (cropped) (potm2404d).tiff
Size of this JPG preview of this TIF file: 644 × 600 pixels. Other resolutions: 258 × 240 pixels | 515 × 480 pixels | 825 × 768 pixels | 1,099 × 1,024 pixels | 1,881 × 1,752 pixels.
Original file (1,881 × 1,752 pixels, file size: 18.9 MB, MIME type: image/tiff)
File information
Structured data
Captions
Summary edit
DescriptionWebb’s view of NGC 6440 (cropped) (potm2404d).tiff |
English: Featured in this new image from the NASA/ESA/CSA James Webb Space Telescope is NGC 6440, a globular cluster that resides roughly 28 000 light-years from Earth in the constellation Sagittarius. The object was first discovered by William Herschel in May of 1786.Globular clusters like NGC 6440 are roughly spherical, tightly packed, collections of old stars bound together by gravity. They can be found throughout galaxies, but often live on the outskirts. They hold hundreds of thousands to millions of stars that are on average about one light-year apart, but they can be as close together as the size of our Solar System. NGC 6440 is known to be a high-mass and metal-rich cluster that formed and is orbiting within the Galactic bulge, which is a dense, near-spherical region of old stars in the inner part of the Milky Way.This image was obtained with 2023 data from Webb’s Near-InfraRed Camera (NIRCam) as part of an observation programme to explore the stars in the cluster and to investigate details of the cluster’s pulsars. A pulsar is a highly magnetised, rotating neutron star that emits a beam of electromagnetic radiation from their magnetic poles. To us, that beam appears as a short burst or pulse as the star rotates. Pulsars spin extremely fast. Astronomers have clocked the fastest pulsars at more than 716 rotations per second, but a pulsar could theoretically rotate as fast as 1500 rotations per second before slowly losing energy or breaking apart.The new data obtained by the science team indicate the first evidence from Webb observations of abundance variations of helium and oxygen in stars in a globular cluster. These results open the window for future, in-depth investigations of other clusters in the Galactic bulge, which were previously infeasible with other telescope facilities given the significant crowding of stars in the cluster and the strong reddening caused by interstellar dust between the cluster and Earth.You can learn more about this image here. |
Date | 1 May 2024 (upload date) |
Source | Webb’s view of NGC 6440 (cropped) |
Author | ESA/Webb, NASA & CSA, P. Freire Acknowledgement: M. Cadelano and C. Pallanca |
Other versions |
|
Licensing edit
ESA/Webb 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 webbtelescope.org website, use the {{PD-Webb}} tag.
Conditions:
Notes:
|
This file is licensed under the Creative Commons Attribution 4.0 International license.
Attribution: ESA/Webb, NASA & CSA, P. Freire Acknowledgement: M. Cadelano and C. Pallanca
- 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 | 10:01, 1 May 2024 | 1,881 × 1,752 (18.9 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://esawebb.org/media/archives/images/original/potm2404d.tif via Commons:Spacemedia |
You cannot overwrite this file.
File usage on Commons
The following page uses 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 | 1,881 px |
---|---|
Height | 1,752 px |
Bits per component |
|
Compression scheme | Uncompressed |
Pixel composition | RGB |
Image data location | 33,218 |
Orientation | Normal |
Number of components | 3 |
Number of rows per strip | 1,752 |
Bytes per compressed strip | 19,773,072 |
Horizontal resolution | 254 dpi |
Vertical resolution | 254 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop 25.6 (Windows) |
File change date and time | 15:37, 23 April 2024 |
Color space | Uncalibrated |