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HD 331092


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관련 글

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.

A Search for Metal-Deficient Stars
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1970ApJS...22..117B&db_key=AST

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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관측 및 측정 데이터

별자리:고니자리
적경:19h41m11.35s
적위:+31°35'26.9"
가시등급:8.739
거리:156.74 파섹
적경상의 고유운동:22.7
적위상의 고유운동:84.5
B-T magnitude:9.695
V-T magnitude:8.818

천체목록:
일반명   (Edit)
HD 1989HD 331092
TYCHO-2 2000TYC 2656-1577-1
USNO-A2.0USNO-A2 1200-12661593
HIPHIP 96850

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