Results of astrometrical observations of the Sun and major planets at the mountain astronomical station of the Pulkovo Observatory

Details Results of astrometrical observations of the Sun and major planets at the mountain astronomical station of the Pulkovo Observatory Results of astrometrical observations of the Sun and major planets at the mountain astronomical station of the Pulkovo Observatory

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009sosyr..43..533d&link_type=abstract

Solar System Research, Volume 43, Issue 6, pp.533-542

Astronomy and Astrophysics

Astronomy

Scientific paper

A series of daytime observations of the Sun and major planets are obtained at the mountain astronomical station of the Pulkovo Observatory using the Ertel-Struve meridian instruments. A series of declinations of Solar System bodies and major planets includes 4057 positions and that of right ascensions of Solar System bodies comprising 2057 positions. Based on the joint processing of observations of the Sun, Mercury, Venus, and Mars obtained with the Ertel-Struve vertical circle and large transit instrument, the orientation elements of the DE200/LE200 dynamic coordinate system, namely, a correction for the right ascensions of FK5 stars Δ A = +0.127″ ± 0.033″, a correction for declinations of FK5 stars Δ D = +0.056″ ± 0.011″, a correction for the ecliptic inclination Δɛ = -0.044″ ± 0.012″, and a correction for the average longitude of the Sun Δ L = -0.083″±0.035″, are determined with respect to the stellar coordinate system.

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