File:Galaxy Cluster Abell 2261.jpg

Original file ‎(2,641 × 1,796 pixels, file size: 1.99 MB, MIME type: image/jpeg)

This file is from a shared repository and may be used by other projects. The description on its file description page there is shown below.

Summary

DescriptionGalaxy Cluster Abell 2261.jpg	English: Galaxy cluster Abell 2261
Date	26 May 2011, 23:31:40
Source	http://www.nasa.gov/mission_pages/hubble/science/a2261-bcg.html
Author	NASA, HST

Taken by the Hubble Space Telescope with exposure dates between March-May 2011

	This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
	Warnings: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI.[1] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

Click on a date/time to view the file as it appeared at that time.

	Date/Time	Thumbnail	Dimensions	User	Comment
current	21:25, 29 May 2019		2,641 × 1,796 (1.99 MB)	commons>FriedrichKieferer	Better resolution and quality.

There are no pages that use this file.

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.

If the file has been modified from its original state, some details may not fully reflect the modified file.

Image title	The giant elliptical galaxy in the centre of this image, taken by the NASA/ESA Hubble Space Telescope, is the most massive and brightest member of the galaxy cluster Abell 2261. Astronomers refer to it as the brightest cluster galaxy (BCG). Spanning a little over one million light-years, the galaxy is about 20 times the diameter of our Milky Way galaxy. Astronomers used Hubble's Advanced Camera for Surveys and Wide Field Camera 3 to measure the amount of starlight across the galaxy, catalogued as 2MASX J17222717+3207571 but more commonly called A2261-BCG (short for Abell 2261 brightest cluster galaxy). Abell 2261 is located three billion light-years away. The observations were taken between March and May 2011. The Abell 2261 cluster is part of a multi-wavelength survey called the Cluster Lensing And Supernova survey with Hubble (CLASH).
Source	ESA/Hubble
Credit/Provider	NASA, ESA, M. Postman (Space Telescope Science Institute, USA), T. Lauer (National Optical Astronomy Observatory, USA), and the CLASH team.
Usage terms	Creative Commons Attribution 4.0 International License
Short title	Brightest galaxy in Abell 2261
Date and time of data generation	19:00, 25 October 2012
Copyright status	Copyright status not set
Keywords	2MASX J17222717+3207571 Abell 2261
Contact information	http://www.spacetelescope.org/ Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany
IIM version	4