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HD 69768


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Measurements of double stars at Nice with 74-cm and 50-cm refractors
A total of 717 measures of 287 binaries made at the 74-cm and 50-cmrefractors are presented. These are mostly very close binariesdiscovered recently, for which a rapid orbital motion is evident forabout 30 percent.

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

Measurements of binary stars made at Nice
Results are presented for 753 measurements of 267 binary stars that weremade with the 50- and 74-cm refractors at Nice Observatory. Coordinatesfor the equinox of 1950 are provided, along with apparent magnitudes,spectral types, and probable periods. It is noted that three-quarters ofthese systems are recently discovered close binaries.

Etoiles doubles nouvelles (11 serie) decouvertes a Nice a la lunette de 50 cm.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1974A&AS...15..253C&db_key=AST

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Osservazione e dati astrometrici

Costellazione:Cancro
Ascensione retta:08h19m04.40s
Declinazione:+18°09'49.1"
Magnitudine apparente:9.516
Moto proprio RA:-40
Moto proprio Dec:-15.5
B-T magnitude:10.23
V-T magnitude:9.575

Cataloghi e designazioni:
Nomi esatti
HD 1989HD 69768
TYCHO-2 2000TYC 1382-1018-1
USNO-A2.0USNO-A2 1050-05672691
HIPHIP 40747
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