Abstract
This atlas shows the boundary locations of the coronal holes observed in soft X-rays (2–32, 44–54 Å) by the AS & E X-ray spectrographic telescope on Skylab. The data are presented as tracings of the boundaries as they appeared when the holes were near central meridian.
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Center for Astrophysics - Harvard College Observatory, Smithsonian Astrophysical Observatory.
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Nolte, J.T., Krieger, A.S., Timothy, A.F. et al. An atlas of coronal hole boundary positions May 28 to November 21, 1973. Sol Phys 46, 291–301 (1976). https://doi.org/10.1007/BF00149858
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DOI: https://doi.org/10.1007/BF00149858