plural space reddenings
Definition of space reddening
: an effect of selective space absorption in which the shorter wavelengths of the radiation of a star's or galaxy's light are reduced in intensity more than the longer wavelengths and cause the object to appear redder than it really is
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“Space reddening.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/space%20reddening. Accessed 26 Feb. 2021.
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