File:Mini-mosaic imager on-line at WIYN (noao-03147).tiff
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DescriptionMini-mosaic imager on-line at WIYN (noao-03147).tiff |
English: An image of the globular cluster M3, NGC5272, obtained with the mini-mosaic camera (described in an NOAO newsletter article) on a Nasmyth focus of the 3.5-meter WIYN telescope on Kitt Peak. The camera uses two 2k x 4k SITE CCDs, mounted side by side to create a 4k x 4k field of view. The gap through the middle of the image shows the separation of the chips. In this configuration, the pixel size is 0.14 arc seconds on the sky, and the field of view is 9.6 arc minutes square. It is a 120 second exposure in the B passband, and images have full width at half maximum (FWHM) of better than 0.5 arc seconds. Note the even image quality all the way to the corners, and how the inset shows that even this seeing is very well sampled. The instrument thus exploits the superb seeing obtained by the WIYN telescope, while also delivering images with moderately large field of view over which the image quality is uniform. |
Date | 30 June 2020, 21:34:00 (upload date) |
Source | Mini-mosaic imager on-line at WIYN |
Author | A.Saha (NOIRLab)/WIYN/NOIRLab/NSF |
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This media was created by the National Optical-Infrared Astronomy Research Laboratory (NOIRLab).
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current | 18:20, 17 September 2023 | 2,052 × 2,048 (4.02 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://noirlab.edu/public/media/archives/images/original/noao-03147.tif via Commons:Spacemedia |
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Image title | An image of the globular cluster M3, NGC5272, obtained with the mini-mosaic camera (described in an NOAO newsletter article) on a Nasmyth focus of the 3.5-meter WIYN telescope on Kitt Peak. The camera uses two 2k x 4k SITE CCDs, mounted side by side to create a 4k x 4k field of view. The gap through the middle of the image shows the separation of the chips. In this configuration, the pixel size is 0.14 arc seconds on the sky, and the field of view is 9.6 arc minutes square. It is a 120 second exposure in the B passband, and images have full width at half maximum (FWHM) of better than 0.5 arc seconds. Note the even image quality all the way to the corners, and how the inset shows that even this seeing is very well sampled. The instrument thus exploits the superb seeing obtained by the WIYN telescope, while also delivering images with moderately large field of view over which the image quality is uniform. |
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Width | 2,052 px |
Height | 2,048 px |
Bits per component | 8 |
Compression scheme | Uncompressed |
Pixel composition | Black and white (Black is 0) |
Orientation | Normal |
Number of components | 1 |
Number of rows per strip | 3 |
Horizontal resolution | 292.5710144043 dpi |
Vertical resolution | 292.5710144043 dpi |
Data arrangement | chunky format |
Software used | ImageMagick 5.5.1 10/20/02 Q16 http://www.imagemagick.org |