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HD 332470


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Eccentric Eclipsing Binary Stars as Test of General Relativity: the Case of V541 Cygni
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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.

Stellar Spectra in Milky way Regions. II. a Region in Cygnus.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1950ApJ...112...90M&db_key=AST

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Kugu
Sað Açýklýk:19h43m20.08s
Yükselim:+30°56'03.6"
Görünürdeki Parlaklýk:8.139
Uzaklýk:1538.462 parsek
özdevim Sað Açýklýk:-4.1
özdevim Yükselim:3.6
B-T magnitude:10.222
V-T magnitude:8.311

Kataloglar ve belirtme:
Özgün isimleri
HD 1989HD 332470
TYCHO-2 2000TYC 2656-4297-1
USNO-A2.0USNO-A2 1200-12873939
HIPHIP 97043
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