File:Noirlab2217a.jpg
Size of this preview: 800 × 406 pixels. Other resolutions: 320 × 162 pixels | 640 × 325 pixels | 1,024 × 520 pixels | 1,280 × 650 pixels | 2,560 × 1,300 pixels | 8,493 × 4,312 pixels.
Original file (8,493 × 4,312 pixels, file size: 7.34 MB, 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
| Description |
English: This mosaic shows the two GHOST spectra of HD 222925, a remarkably bright, chemically complex star. This star is a prime example of the type of object that GHOST will investigate. The two GHOST spectra shown here, which were produced in the same single observation, measure light from around 350 nm to around 1015 nm. Light that is ‘bluer’ than 380 nm is ultraviolet and is invisible to our eyes. Light that is ‘redder’ than around 750 nm is infrared and is also invisible to our eyes. The dark lines in the rainbow are like the fingerprints of the gasses present in the star, including hydrogen, calcium, iron and gold. See this image comparison to see the most prominent features labeled. |
| Date | |
| Source | https://noirlab.edu/public/images/noirlab2217a/ |
| Author | International Gemini Observatory/NOIRLab/NSF/AURA/GHOST Consortium |
| Other versions |
|
Licensing
 |
This media was created by the National Optical-Infrared Astronomy Research Laboratory (NOIRLab).
Their website states: "Unless specifically noted, the images, videos, and music distributed on the public NOIRLab website, along with the texts of press releases, announcements, images of the week and captions; are licensed under a Creative Commons Attribution 4.0 International License, and may on a non-exclusive basis be reproduced without fee provided the credit is clear and visible." To the uploader: You must provide a link (URL) to the original file and the authorship information if available. |
  This file is licensed under the Creative Commons Attribution 4.0 International license.
| |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 19:41, 22 June 2023 | | 8,493 × 4,312 (7.34 MB) | C messier | full size |
| 19:22, 16 December 2022 |  | 4,000 × 2,031 (1.63 MB) | Pandreve | Uploaded a work by International Gemini Observatory/NOIRLab/NSF/AURA/GHOST Consortium from https://noirlab.edu/public/images/noirlab2217a/ with UploadWizard |
File usage
The following pages on the English Wikipedia use this file (pages on other projects are not listed):
