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Astronomical refraction and airmass
Author(s) -
Kahl Kristensen L.
Publication year - 1998
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.2123190313
Subject(s) - refraction , computation , atmospheric refraction , physics , simple (philosophy) , geodesy , optics , geology , mathematics , algorithm , philosophy , epistemology
Standard astronomical refraction is approximated to ±1/2″ by a simple procedure valid to the horizon. In the approximation where absroption and refraction are proportional to the density of the air the computations of refraction and airmass should not be separated.