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Cover Picture: Astron. Nachr. 2/2012
Publication year - 2012
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.201290003
Subject(s) - astron , physics , cover (algebra) , kepler , astronomy , astrophysics , geology , planet , engineering , mechanical engineering
Abstract The fine structure of the proper motion in a solar active region. The contour lines represent the boundaries to the penumbra and to the umbra (see L. Beauregard et al., this issue, p. 125) (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)