File:NGC3254 - HST - Potw2124a.jpg
![File:NGC3254 - HST - Potw2124a.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/7/70/NGC3254_-_HST_-_Potw2124a.jpg/709px-NGC3254_-_HST_-_Potw2124a.jpg?20210616041729)
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Captions
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Summary
[edit]DescriptionNGC3254 - HST - Potw2124a.jpg |
English: A Galactic Powerhouse
This image shows the spiral galaxy NGC 3254, observed using Hubble's Wide Field Camera 3 (WFC3). WFC3 has the capacity to observe ultraviolet, visible and near-infrared light, and this image is a composite of observations taken in the visible and infrared. In this image, NGC 3254 looks like a typical spiral galaxy, viewed side-on. However, NGC 3254 has a fascinating secret that it is hiding in plain sight — it is a Seyfert galaxy, meaning that it has an extraordinarily active core, known as an active galactic nucleus, which releases as much energy as the rest of the galaxy put together. Seyfert galaxies are not rare — about 10% of all galaxies are thought to be Seyfert galaxies. They belong to the class of “active galaxies” — galaxies that have supermassive black holes at their centres that are actively accreting material, which releases vast amounts of radiation as it is accreted. There is a second, far more active, type of active galaxy that is known as a quasar. The active cores of Seyfert galaxies, such as NGC 3254, are brightest when observed in light outside the visible spectrum. At other wavelengths, this image would look very different, with the galaxy’s core shining extremely brightly. Credit: ESA/Hubble & NASA, A. Riess et al.
Coordinates Position (RA): 10 29 23.83 Position (Dec): 29° 30' 6.70" Field of view: 2.41 x 2.03 arcminutes Orientation: North is 7.3° left of vertical Colours & filters Band Wavelength Telescope Optical Long pass 350 nm Hubble Space Telescope WFC3 Optical V 555 nm Hubble Space Telescope WFC3 Optical I 814 nm Hubble Space Telescope WFC3 Infrared H 1.6 μm Hubble Space Telescope WFC3. |
Date | 14 June 2021, 06:00(Release) |
Source | https://esahubble.org/images/potw2124a/ |
Author |
Credit: ESA/Hubble & NASA, A. Riess et al. |
Licensing
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File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 04:17, 16 June 2021 | ![]() | 3,644 × 3,081 (5.55 MB) | Fabian RRRR (talk | contribs) | == {{int:filedesc}} == {{Information |description={{en|1=A Galactic Powerhouse This image shows the spiral galaxy NGC 3254, observed using Hubble's Wide Field Camera 3 (WFC3). WFC3 has the capacity to observe ultraviolet, visible and near-infrared light, and this image is a composite of observations taken in the visible and infrared. In this image, NGC 3254 looks like a typical spiral galaxy, viewed side-on. However, NGC 3254 has a fascinating secret that it is hiding in plain sight — it is... |
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- File:A Galactic Powerhouse - Flickr - NASA Goddard Photo and Video.jpg (file redirect)
- File:A galactic powerhouse (51255661260).jpg (file redirect)
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Metadata
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Source | ESA/Hubble |
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Credit/Provider | ESA/Hubble & NASA, A. Riess et al. |
Short title |
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Image title |
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Usage terms |
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Date and time of data generation | 06:00, 14 June 2021 |
Software used | Adobe Photoshop 22.3 (Windows) |
File change date and time | 10:27, 14 May 2021 |
Date and time of digitizing | 12:17, 26 April 2021 |
Date metadata was last modified | 12:27, 14 May 2021 |
Unique ID of original document | xmp.did:2d647ea3-30de-8242-aa07-6b10bc85499d |
Keywords | NGC 3254 |
Contact information |
ESA Office, Space Telescope Science Institute, 3700 San Martin Dr Baltimore, MD, 21218 United States |
IIM version | 4 |