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Mesures d'etoiles doubles faites a Nice, etoiles doubles nouvelles (24eme serie) decouvertes a Nice.
Table 1 gives 1182 measurements of 682 binaries observed with the 74 and50 cm refractors. Table 2 lists 26 new binaries discovered with the 50cm refractor.

Measurements of binary stars obtained at Pic-du-Midi and at Nice
A total of 112 visual measurements of 82 close binaries observed with 2mtelescope at Pic-du-Midi are presented. In addition, 344 measurements of163 close binaries were observed with the 74-cm and 50-cm refractors atNice. All measurements were made by a micrometer with illuminated wires.

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.

Measurements of double stars made at Nice
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1975A&AS...20..391C&db_key=AST

Mesures d'étoiles doubles faites à Nice
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1972A&AS....6..185C&db_key=AST

Étoiles doubles nouvelles (5^éme série) découvertes à Nice avec la lunette de 50 CM
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1970A&AS....1..419C&db_key=AST

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Dades d'Observació i Astrometria

Constel·lació:Orion
Ascensió Recta:05h50m29.68s
Declinació:+20°26'39.0"
Magnitud Aparent:8.873
Distancia:1075.269 parsecs
Moviment propi RA:1.4
Moviment propi Dec:-5.1
B-T magnitude:9.003
V-T magnitude:8.884

Catàlegs i designacions:
Noms Propis   (Edit)
HD 1989HD 39006
TYCHO-2 2000TYC 1307-99-1
USNO-A2.0USNO-A2 1050-02683110
HIPHIP 27585
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