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HD 224687


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Публикации по объекту

The Tokyo PMC catalog 90-93: Catalog of positions of 6649 stars observed in 1990 through 1993 with Tokyo photoelectric meridian circle
The sixth annual catalog of the Tokyo Photoelectric Meridian Circle(PMC) is presented for 6649 stars which were observed at least two timesin January 1990 through March 1993. The mean positions of the starsobserved are given in the catalog at the corresponding mean epochs ofobservations of individual stars. The coordinates of the catalog arebased on the FK5 system, and referred to the equinox and equator ofJ2000.0. The mean local deviations of the observed positions from theFK5 catalog positions are constructed for the basic FK5 stars to comparewith those of the Tokyo PMC Catalog 89 and preliminary Hipparcos resultsof H30.

Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Subtittle: Radial velocities: The Wilson-Evans-Batten catalogue.
We give a common version of the two catalogues of Mean Radial Velocitiesby Wilson (1963) and Evans (1978) to which we have added the catalogueof spectroscopic binary systems (Batten et al. 1989). For each star,when possible, we give: 1) an acronym to enter SIMBAD (Set ofIdentifications Measurements and Bibliography for Astronomical Data) ofthe CDS (Centre de Donnees Astronomiques de Strasbourg). 2) the numberHIC of the HIPPARCOS catalogue (Turon 1992). 3) the CCDM number(Catalogue des Composantes des etoiles Doubles et Multiples) byDommanget & Nys (1994). For the cluster stars, a precise study hasbeen done, on the identificator numbers. Numerous remarks point out theproblems we have had to deal with.

Regional Spectrophotometric Standards of Intermediate Brightness - Standards around the Northern Celestial Pole
Not Available

The study of the variability of primary standard group stars of the WBVR photometric system
Not Available

Search for Bright Star Variability in the North Pole Field
Not Available

On the Reality of Some Peaks in Redshift Distribution of Seyfert Galaxies - Radio Galaxies and QSOS
Not Available

A. de Sitter's photographic polar photometry revisited; some remarks on photographic photometry with objective gratings
Not Available

A new photometric WBVR system
A description of the new broad-band photometric system, WBVR, is given.It is shown that WBVR is close to the UBVR system but is defined bystrictly fixed response curves and the primary standard. Theconstruction of a network of secondary standards distributed uniformlyin the northern sky, as well as the coordination of the magnitudes ofthe standards to the self-consistent system are discussed. All standardsare examined for a possible brightness variability and it is found thatno light variability exceeding 0.015 mag in amplitude is present andthat their average magnitude shows stability on a scale of severalyears. The individual WBVR observations of the standards are presentedin tables.

The System of Highly Accurate Photoelectric Standards in WBVR Bands
Not Available

Photographic magnitudes of stars brighter than 7m.75 between +75° and +80° declination (Errata: 11 270)
Not Available

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Наблюдательные данные и астрометрия

Созвездие:Цефей
Прямое восхождение:23h59m30.73s
Склонение:+86°42'23.0"
Видимая звёздная величина:6.741
Расстояние:193.798 парсек
Собственное движение RA:35.3
Собственное движение Dec:-1.8
B-T magnitude:6.828
V-T magnitude:6.749

Каталоги и обозначения:
Собственные имена
HD 1989HD 224687
TYCHO-2 2000TYC 4658-308-1
USNO-A2.0USNO-A2 1725-00794693
HIPHIP 118285
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