File:NGC 4414 (NASA-med).jpg

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Description
English: In 1995, the majestic spiral galaxy NGC 4414 was imaged by the Hubble Space Telescope as part of the HST Key Project on the Extragalactic Distance Scale. An international team of astronomers, led by Dr. Wendy Freedman of the Observatories of the Carnegie Institution of Washington, observed this galaxy on 13 different occasions over the course of two months. Images were obtained with Hubble's Wide Field Planetary Camera 2 (WFPC2) through three different color filters. Based on their discovery and careful brightness measurements of variable stars in NGC 4414, the Key Project astronomers were able to make an accurate determination of the distance to the galaxy. The resulting distance to NGC 4414, 19.1 megaparsecs or about 60 million light-years, along with similarly determined distances to other nearby galaxies, contributes to astronomers' overall knowledge of the rate of expansion of the universe. In 1999, the Hubble Heritage Team revisited NGC 4414 and completed its portrait by observing the other half with the same filters as were used in 1995. The end result is a stunning full-color look at the entire dusty spiral galaxy. The new Hubble picture shows that the central regions of this galaxy, as is typical of most spirals, contain primarily older, yellow and red stars. The outer spiral arms are considerably bluer due to ongoing formation of young, blue stars, the brightest of which can be seen individually at the high resolution provided by the Hubble camera. The arms are also very rich in clouds of interstellar dust, seen as dark patches and streaks silhouetted against the starlight.

ID: GPN-2000-000933

Other ID: PR99-25
Date
Source http://nix.larc.nasa.gov/info;jsessionid=1sl2so6lc9mab?id=GPN-2000-000933&orgid=12
http://imgsrc.hubblesite.org/hu/db/images/hs-1999-25-a-full_tif.tif
Author The Hubble Heritage Team (AURA/STScI/NASA)
NASA Headquarters - Greatest Images of NASA (NASA-HQ-GRIN)
Permission
(Reusing this file)
Public domain This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. This license does not apply if ESA material created after 2008 or source material from other organizations is in use.
The material was created for NASA by Space Telescope Science Institute under Contract NAS5-26555, or for ESA by the Hubble European Space Agency Information Centre. Copyright statement at hubblesite.org or 2008 copyright statement at spacetelescope.org.
For material created by the European Space Agency on the spacetelescope.org site since 2009, use the {{ESA-Hubble}} tag.
Hubble 01.jpg
English: This category is part of the category scheme space exploration.
Français: Cette catégorie fait partie du schéma des catégories concernant l'exploration de l'espace.
日本語: このカテゴリーはcategory scheme space explorationの一部です。

File history

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Date/TimeThumbnailDimensionsUserComment
current10:36, 10 December 2016Thumbnail for version as of 10:36, 10 December 20161,730 × 1,428 (1.71 MB)PlanetUserbetter quality from TIFF
09:38, 2 May 2015Thumbnail for version as of 09:38, 2 May 20151,730 × 1,428 (2.42 MB)Jcpag2012Reverted to version as of 00:15, 23 September 2006
03:51, 23 March 2014Thumbnail for version as of 03:51, 23 March 20141,730 × 1,428 (2.42 MB)Editor-1Reverted to version as of 00:15, 23 September 2006
12:01, 15 March 2014Thumbnail for version as of 12:01, 15 March 20142,908 × 2,400 (388 KB)The HeraldHigher resolution
00:15, 23 September 2006Thumbnail for version as of 00:15, 23 September 20061,730 × 1,428 (2.42 MB)Tomhigher res
18:31, 21 January 2006Thumbnail for version as of 18:31, 21 January 20061,024 × 768 (60 KB)Red devil 666
21:45, 1 May 2005Thumbnail for version as of 21:45, 1 May 2005727 × 600 (393 KB)DannyZ~commonswikin 1995, the majestic spiral galaxy NGC 4414 was imaged by the Hubble Space Telescope as part of the HST Key Project on the Extragalactic Distance Scale. An international team of astronomers, led by Dr. Wendy Freedman of the Observatories of the Carnegie I

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