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HD 196631

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Observations of double stars and new pairs. XIV Results of a continuing survey of visual double stars are presented,including 4880 measurements made from February 1987 to November 1989.The positions in WDS format and Durchmusterung numbers are given for 194pairs first reported here. Micrometer measurements of 1142 doubles madewith the Swarthmore 61 cm refractor are presented. Magnitudes areestimated for some of the objects. Plate measurements, plateorientations, position angles, number of nights, and measured exposuresare given. Visual observations of 342 pairs obtained in May 1989 atCerro Tololo, mostly with the 1.0 m reflector, are reported.
Classification spectrale d'etoiles AP et Am. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1975A&AS...21...25F&db_key=AST
Multicolor photometry of metallic-line stars. III. A photometric catalogue Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1974RMxAA...1..175M&db_key=AST
UVBY photometry of AM and AP stars. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1973AJ.....78..192W&db_key=AST
New Peculiar Stars Noted on Objective-Prism Plates Not Available

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Osservazione e dati astrometrici

Costellazione:	Delfino
Ascensione retta:	20^h38^m15.10^s
Declinazione:	+10Â°43'24.9"
Magnitudine apparente:	8.798
Moto proprio RA:	-0.6
Moto proprio Dec:	-7.6
B-T magnitude:	9.091
V-T magnitude:	8.823

Cataloghi e designazioni:

Nomi esatti	(Edit)
HD 1989	HD 196631
TYCHO-2 2000	TYC 1092-781-1
USNO-A2.0	USNO-A2 0975-19348824

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