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HD 103310


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Observations of Double Stars. XVIII.
Micrometer observations of 1350 pairs in 1995-1997 are listed.

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.

Mesures d'etoiles doubles faites a Nice a la lunette de 50 cm.
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Mesures d'étoiles doubles effectuées au réfracteur de 38 cm de l' Observatoire de Nice
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Observation and Astrometry data

Constellation:Leo
Right ascension:11h53m52.00s
Declination:+20°20'10.1"
Apparent magnitude:8.66
Distance:114.811 parsecs
Proper motion RA:-146.3
Proper motion Dec:-29.4
B-T magnitude:9.625
V-T magnitude:8.74

Catalogs and designations:
Proper Names
HD 1989HD 103310
TYCHO-2 2000TYC 1443-847-1
USNO-A2.0USNO-A2 1050-06604868
HIPHIP 58008
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