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HD 334154


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Photometry and Spectrophotometry of the New Variable Star IRAS 20192+3025
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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.

Micrometric Measures of Double Stars
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1974ApJS...28..413V&db_key=AST

Mesures d'etoiles doubles faites AU 38cm de l'Observatoire de Paris.
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Mesures d'étoiles doubles à Meudon
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Observations d'étoiles doubles faites au Pic-du-Midi en spetembre octobre 1957
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Mesures d'étoiles doubles faites à Strasbourg en 1954
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Osservazione e dati astrometrici

Costellazione:Cigno
Ascensione retta:20h21m19.56s
Declinazione:+30°36'03.7"
Magnitudine apparente:8.51
Distanza:288.184 parsec
Moto proprio RA:9.8
Moto proprio Dec:11.8
B-T magnitude:8.815
V-T magnitude:8.536

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 334154
TYCHO-2 2000TYC 2672-1711-1
USNO-A2.0USNO-A2 1200-14962069
HIPHIP 100369
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