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HD 224125


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Mean positions and proper motions of 305 stars obtained from the combination of PZT observations at Ondrejov with AGK positions
Observations of 305 stars carried out at the Ondrejov Observatory in theperiod 1973-1983 were compared to the positions of the same stars in theAGK 2 and AGK 3 catalogs in order to obtain their mean positions andproper motions. The observations were performed in the course of 1140nights using the PZT telescope and comprise more than 32 thousand startransits. The average mean errors in the right ascension and declinationof a star that was observed thoughout the whole period were + or -0.0019 s and + or - 0.019 arcsec in the epoch around 1979. It ispredicted that the errors will increase + or - 0.0055 sec and + or -0.059 arcsec in the year 2000. A table listing the errors in the rightascension and declination is provided.

New optical positions and proper motions of late type stars associated with SiO masers
The 33 cm astrograph of the Bordeaux Observatory has been used to derivewith respect to AGK3 reference stars, accurate positions of late typevariable stars variable stars associated with strong SiO maser emission.It is suggested that selected maser stars can be used to link theHIPPARCOS system and the VLBI extragalactic reference frame. The propermotions of the program (SiO) and reference stars are derived and, forthe program stars, are compared to the McCormick catalog of propermotions.

The determination of mean positions and proper motions of 304 stars from PZT observations at Ondrejov
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New Determinations of Precise Star Declinations with a Zenith Telescope.
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Miembro de los siguientes grupos:

Datos observacionales y astrométricos

Constelación:Casiopea
Ascensión Recta:23h55m22.04s
Declinación:+50°14'31.9"
Magnitud Aparente:8.304
Distancia:751.88 parsecs
Movimiento Propio en Ascensión Recta:7.8
Movimiento Propio en Declinación:-1.9
B-T magnitude:8.338
V-T magnitude:8.307

Catálogos y designaciones:
Nombres Propios
HD 1989HD 224125
TYCHO-2 2000TYC 3647-2168-1
USNO-A2.0USNO-A2 1350-18842788
HIPHIP 117936
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