File:Markarian 209.png
Original file (3,993 × 2,313 pixels, file size: 45.92 MB, MIME type: image/png)
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Summary
[edit]DescriptionMarkarian 209.png |
Mrk 209 is a dwarf galaxy with a bit of star formation going on, and thus is said to be blue. A few years back this one was processed and released by the ESA folks, but in the intervening years, further observations have been made. Ultraviolet and narrowband H-alpha bands are now available, so I thought I would newly reprocess the image with those additions. This allowed me to generate a more familiar image with pink hydrogen clouds rather than blue ones even though the near-infrared band (F814W) still occupies the red channel and the red band (F606W) sits within the green channel. The UV data, which is all blue in my image, really highlights some of those young and brightly burning blue stars which make the galaxy a noteworthy dwarf. To the right is a local Milky Way star that appears bright to Hubble, but is actually a dim, anonymous star of little interest to the astronomical community. It looks nice in the composition, though. I think that the wider field of view allows one to see how far the fainter, highly diffuse outer reaches extend far beyond what could visually define the outline of the galaxy. LEGUS data products (except H-alpha, as of this writing) are available from this page: archive.stsci.edu/prepds/legus/dataproducts-public.html Data from the following proposals was used: The Dynamic State of the Dwarf Galaxy Rich Canes Venatici I Region H-alpha LEGUS: Unveiling the Interplay Between Stars, Star Clusters, and Ionized Gas LEGUS: Legacy ExtraGalactic UV Survey Red: WFC3/UVIS F657N + ACS/WFC F814W Green: ACS/WFC F606W Blue: WFC3/UVIS F275W + WFC3/UVIS F336W + WFC3/UVIS F438W North is NOT up. It is 31° counter-clockwise from up. |
Date | |
Source | Markarian 209 |
Author | Judy Schmidt from USA |
Licensing
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This image was originally posted to Flickr by geckzilla at https://flickr.com/photos/54209675@N00/35902275404. It was reviewed on 22 August 2017 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
22 August 2017
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 16:11, 22 August 2017 | 3,993 × 2,313 (45.92 MB) | Fabian RRRR (talk | contribs) | =={{int:filedesc}}== {{Information |Description=Mrk 209 is a dwarf galaxy with a bit of star formation going on, and thus is said to be ''blue''. A few years back this one [https://www.spacetelescope.org/images/potw1450a/ was processed and released] by... |
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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 | 4,182 px |
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Height | 4,463 px |
Bits per component | 16 |
Compression scheme | Uncompressed |
Number of components | 1 |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Color space | sRGB |
Image width | 3,993 px |
Image height | 2,313 px |
Software used | Adobe Photoshop CC 2017 (Windows) |
Date and time of digitizing | 05:56, 17 August 2017 |
File change date and time | 17:33, 21 August 2017 |
Date metadata was last modified | 17:33, 21 August 2017 |
Unique ID of original document | xmp.did:a1283127-97eb-1b49-8ed9-1682ee1ed4c2 |