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HD 6717


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Speckle Interferometry at the US Naval Observatory. VIII.
The results of 2044 speckle interferometric observations of doublestars, made with the 26 inch (66 cm) refractor of the US NavalObservatory, are presented. Each speckle interferometric observation ofa system represents a combination of over a thousand short-exposureimages. These observations are averaged into 1399 mean positions andrange in separation from 0.16" to 14.97", with a mean separation of2.51". This is the eighth in a series of papers presenting measuresobtained with this system and covers the period 2001 March 18 through2001 December 30.

Micrometer Observations of Double Stars and New Pairs - Part Ten
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1980ApJS...44..111H&db_key=AST

Double star measures at Lick Observatory, Mount Hamilton, California.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1978PASP...90..465H&db_key=AST

Mesures d'étoiles doubles faites au réfracteur de 38 cm de l'Observatoire de Nice
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Membro dei seguenti gruppi:

Osservazione e dati astrometrici

Costellazione:Pesci
Ascensione retta:01h08m00.47s
Declinazione:+12°04'02.9"
Magnitudine apparente:9.25
Moto proprio RA:-14.5
Moto proprio Dec:-24.2
B-T magnitude:9.677
V-T magnitude:9.286

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 6717
TYCHO-2 2000TYC 615-96-1
USNO-A2.0USNO-A2 0975-00248595
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