Determination of astronomical refraction near the horizon in different seasons of the year

Details Determination of astronomical refraction near the horizon in different seasons of the year Determination of astronomical refraction near the horizon in different seasons of the year

Dec 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974amap.nasa..110v&link_type=abstract

"In its Astrometrics and Astrophysics, No. 17 (NASA-TT-F-15768) p 110-124 (SEE N75-21164 12-88) Transl. into ENGLISH from the b

Astronomy and Astrophysics

Astrophysics

Annual Variations, Astronomical Photography, Atmospheric Refraction, Stellar Radiation, Aerology, Astronomical Observatories, Celestial Bodies, Horizon, Solar Position, Temperature Gradients, Zenith

Scientific paper

The 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.

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