File:Ab30 rgb3.jpg

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English: Abell 30 at the prime focus of the 4-meter Mayall telescope at Kitt Peak National Observatory:

(Color mix altered)

Blue/Green=Hydrogen alpha;

Red=[O III] 5007;

Blue=6100 Angstrom continuum (just shows the stars).

Stars look "white" because they show up in all three filters. (Logarithmic scaling.)
Source http://violet.pha.jhu.edu/~wpb/abell30/ab30.html http://violet.pha.jhu.edu/~wpb/abell30/ab30_rgb1.jpg
Author William P. Blair
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http://violet.pha.jhu.edu/~wpb/abell30/ab30.html

Public domain This work has been released into the public domain by its author, William P. Blair. This applies worldwide.
In some countries this may not be legally possible; if so:
William P. Blair grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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Date/TimeThumbnailDimensionsUserComment
current11:51, 27 November 2021Thumbnail for version as of 11:51, 27 November 2021796 × 796 (1.06 MB)Fabian RRRR (talk | contribs){{Information |Description ={{en|1='''Abell 30''' at the prime focus of the 4-meter Mayall telescope at Kitt Peak National Observatory: (Color mix altered) Blue/Green=Hydrogen alpha; Red=[O III] 5007; Blue=6100 Angstrom continuum (just shows the stars). Stars look "white" because they show up in all three filters. (Logarithmic scaling.)}} |Source =http://violet.pha.jhu.edu/~wpb/abell30/ab30.html http://violet.pha.jhu.edu/~wpb/abell30/ab30_rgb1.jpg |Author =William...

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