File:Interacting galaxy NGC 91 (noao-ngc91).tiff
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Interacting_galaxy_NGC_91_(noao-ngc91).tiff (400 × 400 pixels, file size: 71 KB, MIME type: image/tiff)
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[edit]DescriptionInteracting galaxy NGC 91 (noao-ngc91).tiff |
English: This is a one-minute exposure taken on the night of September 1st 1994 (UT of observation 02/09/94:09:39) with the 1k detector. This photograph shows a region 100 arc seconds square, which is displayed in pseudo-color, where the brightness is mapped to a color so as to show more of the fainter features (in green) while not saturating the bright regions (red, shading to grey/white). Observing conditions during this phase of the commissioning were not ideal, but this image has a "seeing" measurement (average FWHM of several stars) of about 0.9 arc seconds. Orientation: N up, with E to the left. About this object NGC91 (Arp 65) is an unusual spiral galaxy in the constellation Pegasus. It is classified as SAB(s)c(pec), which means that it is a spiral ("S") with a central bar, not well developed ("AB"), where the arms start at the ends of the bar (the "(s)"), and are few in number and quite open (the final "c"). The "(pec)", or peculiar, features include the extended material seen to the upper right (NW) in this image, as well as a second fainter trail going to the bottom left (SE), which is only hinted at in this short exposure. There are several other galaxies nearby, which may account for its oddities (although not everyone thinks we can always blame interactions for strange morphologies). Location: 00 21 51.7 +22 24 01 (2000.0), distance: over 200 million light-years, size: perhaps 60000 light-years across. |
Date | 30 June 2020, 21:33:00 (upload date) |
Source | Interacting galaxy NGC 91 |
Author | WIYN/NOIRLab/NSF |
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[edit]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.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 19:49, 17 September 2023 | 400 × 400 (71 KB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://noirlab.edu/public/media/archives/images/original/noao-ngc91.tif via Commons:Spacemedia |
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Image title | This is a one-minute exposure taken on the night of September 1st 1994 (UT of observation 02/09/94:09:39) with the 1k detector. This photograph shows a region 100 arc seconds square, which is displayed in pseudo-color, where the brightness is mapped to a color so as to show more of the fainter features (in green) while not saturating the bright regions (red, shading to grey/white). Observing conditions during this phase of the commissioning were not ideal, but this image has a "seeing" measurement (average FWHM of several stars) of about 0.9 arc seconds. Orientation: N up, with E to the left. About this object NGC91 (Arp 65) is an unusual spiral galaxy in the constellation Pegasus. It is classified as SAB(s)c(pec), which means that it is a spiral ("S") with a central bar, not well developed ("AB"), where the arms start at the ends of the bar (the "(s)"), and are few in number and quite open (the final "c"). The "(pec)", or peculiar, features include the extended material seen to the upper right (NW) in this image, as well as a second fainter trail going to the bottom left (SE), which is only hinted at in this short exposure. There are several other galaxies nearby, which may account for its oddities (although not everyone thinks we can always blame interactions for strange morphologies). Location: 00 21 51.7 +22 24 01 (2000.0), distance: over 200 million light-years, size: perhaps 60000 light-years across. |
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Width | 400 px |
Height | 400 px |
Bits per component | 8 |
Compression scheme | LZW |
Pixel composition | Palette |
Image data location | 34,836 |
Orientation | Normal |
Number of components | 1 |
Number of rows per strip | 400 |
Bytes per compressed strip | 33,325 |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop CC 2019 (Windows) |
File change date and time | 15:24, 14 December 2019 |
Color space | Uncalibrated |
Structured data
image/tiff
400 pixel
400 pixel
73,010 byte
ab69f2c82014c9bec245776929887ce6deef8239
30 June 2020
3tty5y1fqev413i0bkf9ysdzscxgpdmb8a6ixmo5c14w4vpquq
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