Observations of the 1969 Inferior Conjunction and Greatest Western Elongation of Venus: Data Catalog and Preliminary Analysis
Year: 1970
Type: book
Abstract: This Memorandum includes a catalog of telescopic and photometric information on Venus obtained in 1969.Two specific celestial phenom ena were investigated: inferior conjunction (April 3 to 22) and great est western elongation (June 14 to 21).The latter was observed simul taneously from observatories some eleven degrees apart in longitude.Along with each photographic observation, many of which were in day light or twilight, photometer readings of the sky, near Venus and else where, were recorded.This program was the observational follow-up of a theoretical study that suggested that the Venus cusp extension angle measured was dependent on the brightness of the terrestrial sky around it.Now it is suggested that additional factors also play a rolefactors associated with the earth's atmosphere and with the character istics of the observing equipment.The interplay of two parameters, sky brightness and film exposure time, is examined.
Source: RAND Corporation eBooks
DOI: 10.7249/rm6262
Authors: Kocher, G. E., Moore, R. C., Schilling, G. F., Turner, M.
Institution: RAND Corporation
Language: English
Topic: Astro and Planetary Science
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W1559251126