Results of astrometrical observations of the Sun and major planets at the mountain astronomical station of the Pulkovo Observatory |
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Authors: | A V Devyatkin K G Gnevysheva G D Baturina |
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Institution: | 1.Main (Pulkovo) Astronomical Observatory,Russian Academy of Sciences,St. Petersburg,Russia |
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Abstract: | 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 ΔA = +0.127″ ± 0.033″, a correction for declinations of FK5 stars ΔD = +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 ΔL = −0.083″±0.035″, are determined with respect to the stellar coordinate system. |
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