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HD 278818


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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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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Kahraman
Sað Açýklýk:03h36m00.78s
Yükselim:+34°08'37.5"
Görünürdeki Parlaklýk:10.184
özdevim Sað Açýklýk:8.8
özdevim Yükselim:-11
B-T magnitude:10.748
V-T magnitude:10.231

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 278818
TYCHO-2 2000TYC 2363-1816-1
USNO-A2.0USNO-A2 1200-01642473
HIPHIP 16787
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