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HD 188929


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Third preliminary catalogue of stars observed with the photoelectric astrolabe of the Beijing Astronomical Observatory.
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The fourth meridian catalog of Besancon Observatory
The catalog presented gives differential meridian positions for 670F-type stars between plus 15 and plus 45 deg declination. The positionsare reduced to the equinox of 1950.0 without proper motions; 333 FK4stars were used as reference stars. A minimum of three and an average offive transits of each program star were observed photoelectrically usinga Gautier transit circle and a Hog grid. The internal accuracy ofindividual measurements is shown to range from 0.013 sec in rightascension and 0.30 arcsec in declination for brighter stars under betterobserving conditions to 0.020 sec in right ascension and 0.38 arcsec indeclination for fainter stars under worse conditions. The standarderrors were applied to compute weighted mean positions, mean epochs, andunweighted means for the program stars. Mean corrections for 283 FK4stars are also provided.

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Tilkicik
Sað Açýklýk:19h56m49.78s
Yükselim:+23°46'36.5"
Görünürdeki Parlaklýk:6.785
Uzaklýk:88.339 parsek
özdevim Sað Açýklýk:41.3
özdevim Yükselim:38.2
B-T magnitude:7.15
V-T magnitude:6.816

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 188929
TYCHO-2 2000TYC 2140-3053-1
USNO-A2.0USNO-A2 1125-14704835
HIPHIP 98154

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