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HD 14589


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Photographic Zenith Tubes Observations to Improve HIPPARCOS Proper Motion in Declination of Some Stars
A procedure of calculation and results of an attempt to improve propermotions in declination for some HIPPARCOS stars are presented. A longseries of optical observations of these stars observed with PhotographicZenith Tubes (PZT) are used. The HIPPARCOS ESA mission (ESA 1997) wasnearly 4 years long, but each of the different Earth rotation programmes(PZTs included) covers a few decades in the interval 1899.7 - 1992.0(Vondrak et al. 1998). The HIPPARCOS mission period of a few years onlyis not enough to determine the precise proper motions for some stars,with the standard error of proper motions of about 1 mas/year, butground-based data covering a few decades with positional errors one ortwo orders higher than HIPPARCOS ones are nevertheless useful forchecking or improving some HIPPARCOS proper motions (mostly of doubleand multiple stars). Here, the observations of two PZTs (with differentlongitudes and the same latitude) are used to improve some HIPPARCOSproper motions in declination; the method is explained and some resultsare presented.

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Observation and Astrometry data

Constellation:Fornax
Right ascension:02h20m30.48s
Declination:-35°06'39.3"
Apparent magnitude:8.694
Distance:1428.571 parsecs
Proper motion RA:62.2
Proper motion Dec:24.2
B-T magnitude:10.096
V-T magnitude:8.81

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 14589
TYCHO-2 2000TYC 7009-628-1
USNO-A2.0USNO-A2 0525-00789599
HIPHIP 10914

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