Fichier:Potw1512a.tif
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Resumé
BeschreiwungPotw1512a.tif |
English: A galaxy on the edge
NGC 5023 is part of the M51 group of galaxies. The brightest galaxy in this group is Messier 51, the Whirlpool Galaxy, which has been captured by Hubble many times. NGC 5023 is less fond of the limelight and seems rather unsociable in comparison — it is relatively isolated from the other galaxies in the group. Astronomers are particularly interested in the vertical structure of discs like these. By analysing the structure above and below the central plane of the galaxy they can make progress in understanding galaxy evolution. Astronomers are able to analyse the distribution of different types of stars within the galaxy and their properties, in particular how well evolved they are on the Hertzsprung–Russell Diagram — a scatter graph of stars that shows their evolution. NGC 5023 is one of six edge-on spiral galaxies observed as part of a study using Hubble’s Advanced Camera for Surveys. They study this vertical distribution and find a trend which suggests that heating of the disc plays an important role in producing the stars seen away from the plane of the galaxy. In fact, NGC 5023 is pretty popular when it comes to astronomers, despite its unsociable behaviour. The galaxy is also one of 14 disc galaxies that are part of the GHOSTS survey — a survey which uses Hubble data to study galaxy halos, outer discs and star clusters. It is the largest study to date of star populations in the outskirts of disc galaxies. The incredible sharp sight of Hubble has allowed scientist to count more than 30 000 individual bright stars in this image. This is only a small fraction of the several billion stars that this galaxy contains, but the others are too faint to detect individually even with Hubble. Credit: ESA/Hubble & NASA Advanced Search About the Image Id: potw1512a Type: Observation Release date: 23 March 2015, 10:00 Size: 4004 x 3444 px About the Object Name: NGC 5023 Type: • Local Universe : Galaxy : Type : Spiral • X - Galaxies Images/Videos Distance: 33 million light years Constellation: Canes Venatici Coordinates Position (RA): 13 12 12.28 Position (Dec): 44° 2' 24.53" Field of view: 3.33 x 2.86 arcminutes Orientation: North is 70.3° left of vertical Colours & filters Band Wavelength Telescope Optical V 606 nm Hubble Space Telescope ACS Infrared I 814 nm Hubble Space Telescope . |
Datum | Release 23 March 2015 |
Quell | http://www.spacetelescope.org/images/potw1505a/ http://www.spacetelescope.org/static/archives/images/original/potw1505a.tif |
Auteur | Credit: ESA/Hubble & NASA |
Lizenz
ESA/Hubble images, videos and web texts are released by the ESA under the Creative Commons Attribution 4.0 International license and may on a non-exclusive basis be reproduced without fee provided they are clearly and visibly credited. Detailed conditions are below; see the ESA copyright statement for full information. For images created by NASA or on the hubblesite.org website, or for ESA/Hubble images on the esahubble.org site before 2009, use the {{PD-Hubble}} tag.
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Versioun vum | Miniaturbild | Dimensiounen | Benotzer | Bemierkung | |
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aktuell | 08:11, 24. Mäe. 2015 | 4.004 × 3.444, 2 Säiten (35,1 MB) | Fabian RRRR | =={{int:filedesc}}== {{Information |description={{en|1=''A galaxy on the edge This NASA/ESA Hubble Space Telescope image shows an edge-on view of the spiral galaxy NGC 5023. Due to its orientation we cannot appreciate its spiral arms, but we can admi... |
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Breet | 4.004 px |
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Längt | 3.444 px |
Bite pro Faarfkomponent |
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Aart vun der Kompressioun | LZW |
Pixelzesummesetzung | RGB |
Kameraausriichtung | Normal |
Zuel vun de Komponenten | 3 |
Zuel vun den Zeile pro Strëpp | 21 |
Horizontal Opléisung | 72 dpi |
Vertikal Opléisung | 72 dpi |
Datenausriichtung | Graffe Format |
Benotzt Software | Adobe Photoshop CC 2014 (Windows) |
Späicherzäitpunkt | 12:26, 6. Aug. 2014 |
Faarfraum | Net kalibréiert |