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HD 21550


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Ýlgili Makaleler

Measurements of 258 radial velocities in two fields near Alpha Per
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1987A&AS...68..515F&db_key=AST

UBV photometry of stars whose positions are accurately known. II
The present report on the UBV observations of stars with favorableastrometric history gives attention to stars of the BD zones lyingbetween 50 and 54 deg. These observations and their reductions wereperformed from August 1983 to August 1984, as described by Oja (1984).Results are presented as tables for both the standard stars and theprogram stars. Comparisons are conducted between the present Vmagnitudes and those of the NPZT (1982) and AGK3R (1978) catalogs.

Meridian observations made with the Carlsberg Automatic Meridian Circle at Brorfelde (Copenhagen University Observatory) 1981-1982
The 7-inch transit circle instrument with which the present position andmagnitude catalog for 1577 stars with visual magnitudes greater than11.0 was obtained had been equipped with a photoelectric moving slitmicrometer and a minicomputer to control the entire observationalprocess. Positions are reduced relative to the FK4 system for each nightover the whole meridian rather than the usual narrow zones. Thepositions of the FK4 stars used in the least squares solution are alsogiven in the catalog.

Carbon Stars in Two Northern Milky way Zones.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1957ApJ...125..195N&db_key=AST

Eigenbewegungen in der Umgebung von α Persei
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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Kahraman
Sað Açýklýk:03h30m46.00s
Yükselim:+51°01'47.7"
Görünürdeki Parlaklýk:8.986
özdevim Sað Açýklýk:10.3
özdevim Yükselim:-20.6
B-T magnitude:9.23
V-T magnitude:9.007

Kataloglar ve belirtme:
Özgün isimleri
HD 1989HD 21550
TYCHO-2 2000TYC 3324-244-1
USNO-A2.0USNO-A2 1350-03531222
HIPHIP 16361
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