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HD 233864


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Mean positions and proper motions of 224 stars based on PZT observations at Ondrejov in 1973-1986
An improvement of the positions and proper motions for the Ondrejov PZTstar list based on observations of 224 stars in the period 1973-1986 ispresented. The mean epoch of the PZT 86 catalogue is found to be 1981.56with a standard error in right ascension equal to + or - 0.0015 s/ andin delination equal to + or - 0.017 arcsec. The proper motions in rightascension and declination were obtained with an accuracy characterizedby the average standard errors of + or - 0.051 s/cy and + or - 0.57arcsec/cy, respectively. The PZT 86 catalogue is compared with theprevious PZT (1978 and 1983) catalogues, and with the AGK 3 (Dieckvoss,1975) catalogue.

The determination of mean positions and proper motions of 304 stars from PZT observations at Ondrejov
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The space distribution of late type stars in a North galactic pole region.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1962AJ.....67...37U&db_key=AST

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Osservazione e dati astrometrici

Costellazione:Orsa Maggiore
Ascensione retta:11h45m47.35s
Declinazione:+49°51'51.3"
Magnitudine apparente:9.604
Moto proprio RA:-24.8
Moto proprio Dec:10.7
B-T magnitude:10.498
V-T magnitude:9.678

Cataloghi e designazioni:
Nomi esatti
HD 1989HD 233864
TYCHO-2 2000TYC 3454-761-1
USNO-A2.0USNO-A2 1350-07999902
HIPHIP 57377
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