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HD 281451


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The Henry Draper Extension Charts: A catalogue of accurate positions, proper motions, magnitudes and spectral types of 86933 stars
The Henry Draper Extension Charts (HDEC), published in the form offinding charts, provide spectral classification for some 87000 starsmostly between 10th and 11th magnitude. This data, being highlyvaluable, as yet was practically unusable for modern computer-basedastronomy. An earlier pilot project (Roeser et al. 1991) demonstrated apossibility to convert this into a star catalogue, using measurements ofcartesian coordinates of stars on the charts and positions of theAstrographic Catalogue (AC) for subsequent identification. We presenthere a final HDEC catalogue comprising accurate positions, propermotions, magnitudes and spectral classes for 86933 stars of the HenryDraper Extension Charts.

Peculiar stars in the association Per OB2.
Not Available

Spectroscopic studies of stars in Per OB2.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1977AJ.....82..598G&db_key=AST

A Study of the II Persei Association.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1960ApJ...132...58S&db_key=AST

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Observation and Astrometry data

Constellation:ペルセウス座
Right ascension:04h03m53.57s
Declination:+33°56'56.8"
Apparent magnitude:10.311
Proper motion RA:5.7
Proper motion Dec:-4.7
B-T magnitude:10.655
V-T magnitude:10.34

Catalogs and designations:
Proper Names
HD 1989HD 281451
TYCHO-2 2000TYC 2366-2586-1
USNO-A2.0USNO-A2 1200-01938644
HIPHIP 18971
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