Lêer:Phoenix dwarf galaxy.jpg

Page contents not supported in other languages.
in Wikipedia, die vrye ensiklopedie

Oorspronklike lêer ‎(669 × 669 piksels, lêergrootte: 325 KG, MIME-tipe: image/jpeg)

Hierdie lêer kom vanaf Wikimedia Commons en kan ook in ander projekte gebruik word. Die beskrywing op die lêer se inligtingsblad word hieronder weergegee.

Opsomming

Beskrywing
English: The NASA/ESA Hubble Space Telescope has taken this image of the Phoenix Dwarf Galaxy, which is located 1.4 million light-years away from Earth. It is located in the constellation of Phoenix in the southern sky. The object, a dwarf irregular galaxy, features younger stars in its inner regions and older ones at its outskirts.

Dwarf galaxies are small galaxies composed of a few billion stars, compared to fully-fledged galaxies which can contain hundreds of billions of stars. In the Local Group, there are a number of such dwarf galaxies orbiting the larger galaxies such as the Milky Way or the Andromeda Galaxy. They are thought to have been created by tidal forces in the early stages of the creation of these galaxies, or as a result of collisions between galaxies, forming from ejected streams of material and dark matter from the parent galaxies. The Milky Way galaxy features at least 14 satellite dwarf galaxies orbiting it.

Because of their shape, dwarf irregulars have often been mistaken for globular clusters: they do not feature a bulge or spiral arms like larger galaxies. However, their importance in terms of cosmology is in stark contrast to their unspectacular shapes, as their chemical makeup and high levels of gas are believed to be similar to those of the earliest galaxies that populated the Universe. They are thought to be contemporary versions of some of the remote galaxies observed in deep field galaxy surveys, and can thus help to understand the early stages of galaxy and star formation in the young Universe.

The galaxy was discovered in 1976 by Hans-Emil Schuster and Richard Martin West. Hans-Emil Schuster was acting director of ESO’s La Silla Observatory in Chile and was involved in the selection and testing of the sites for the observatories of both La Silla and Paranal. His great contribution to astronomy and to ESO was recognised by the Chilean government last week when he was awarded the medal of the Order of Bernardo O’Higgins.
Datum
Bron http://spacetelescope.org/images/potw1143a/
Outeur ESA/Hubble & NASA

Lisensiëring

w:af:Creative Commons
naamsvermelding
naamsvermelding
 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.
Conditions:
  • The full image or footage credit must be presented in a clear and readable manner to all users, with the wording unaltered (for example: "ESA/Hubble"). Web texts should be credited to ESA/Hubble (except when used by media). The credit should not be hidden or disassociated from the image footage. Links should be active if the credit is online. See the usage rights Q&A section on the ESA copyright page for guidance.
  • ESA/Hubble materials may not be used to state or imply the endorsement by ESA/Hubble or any ESA/Hubble employee of a commercial product or service.
  • ESA/Hubble requests a copy of the product sent to them to be indexed in their archive.
  • If an image shows an identifiable person, using that image for commercial purposes may infringe that person's right of privacy, and separate permission should be obtained from the individual.
  • If images or visuals are changed significantly from the original work (apart from resizing, cropping), we suggest that the changes are mentioned after the credit line. For example "Original image by ESA/Hubble (M. Kornmesser), warping and recolouring by NN".

Notes:

  • Note that this general permission does not extend to the use of ESA/Hubble's logo, which shall remain protected and may not be used or reproduced without prior and individual written consent of ESA/Hubble.
  • Also note that music, scientific papers and code on the esahubble.org site are not released under this license and can not be used for non-ESA/Hubble products.
  • By reproducing ESA/Hubble material, in part or in full, the user acknowledges the terms on which such use is permitted.
w:af:Creative Commons
naamsvermelding
This file is licensed under the Creative Commons Attribution 4.0 International license.
Naamsvermelding: ESA/Hubble
U is vry:
  • om te deel – die werk kopieer, versprei en deurgee
  • om te hermeng – om die werk aan te pas
Onder die volgende voorwaardes:
  • naamsvermelding – U moet die nodige krediet gee, 'n skakel na die lisensie verskaf en aandui of daar veranderinge aangebring is. U mag dit op enige redelike manier doen, maar nie op enige manier wat daarop dui dat die lisensiegewer u of u gebruik onderskryf nie.

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

uitbeelding

Lêergeskiedenis

Klik op die datum/tyd om te sien hoe die lêer destyds gelyk het.

Datum/TydDuimnaelDimensiesGebruikerOpmerking
huidig07:19, 10 Augustus 2019Duimnaelskets vir weergawe vanaf 07:19, 10 Augustus 2019669 × 669 (325 KG)BevinKaconactual size from ESO original source
16:43, 25 Oktober 2011Duimnaelskets vir weergawe vanaf 16:43, 25 Oktober 20111 280 × 1 280 (470 KG)Jmencisom

Die volgende bladsy gebruik dié lêer:

Globale lêergebruik

Die volgende ander wiki's gebruik hierdie lêer:

Metadata

Die lêer bevat aanvullende inligting wat moontlik deur 'n digitale kamera of skandeerder bygevoeg is.

As die lêer verander is, sal sekere inligting dalk nie meer ooreenkom met dié van die gewysigde lêer nie.

Ontsluit van "https://af.wikipedia.org/wiki/Lêer:Phoenix_dwarf_galaxy.jpg"