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Determination of astronomical refraction near the horizon in different seasons of the yearThe results are presented of astronomical refraction measurements for zenith distances of 80-90 degrees performed in different seasons with a two inch universal instrument. The differences between observed and calculated refraction were found to exhibit seasonal variations, and the results were compared with data of atmospheric aerologic soundings. The great departures in observed refraction from that calculated with the Pulkovo tables were ascribed to temperature gradient changes within the ground kilometer layer of atmosphere.
Document ID
19750013098
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Vasilenko, N. A. (Techtran Corp. Glen Burnie, MD, United States)
Date Acquired
August 8, 2013
Publication Date
December 1, 1974
Publication Information
Publication: Astrometrics and Astrophysics, No. 17 (NASA-TT-F-15768)
Subject Category
Astronomy
Accession Number
75N21170
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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