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TYC 1469-284-1

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ICCD Speckle Observations of Binary Stars. XXIII. Measurements during 1982-1997 from Six Telescopes, with 14 New Orbits We present 2017 observations of 1286 binary stars, observed by means ofspeckle interferometry using six telescopes over a 15 year period from1982 April to 1997 June. These measurements constitute the 23dinstallment in CHARA's speckle program at 2 to 4 m class telescopes andinclude the second major collection of measurements from the MountWilson 100 inch (2.5 m) Hooker Telescope. Orbital elements are alsopresented for 14 systems, seven of which have had no previouslypublished orbital analyses.
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'étoiles doubles visuelles Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1970A&AS....3...71M&db_key=AST
Mesures d'étoiles doubles faites à Nice aux lunettes de 50 et de 74 CM Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1970A&AS....3...51C&db_key=AST

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Osservazione e dati astrometrici

Costellazione:	Boote
Ascensione retta:	14^h17^m29.93^s
Declinazione:	+17Â°22'21.1"
Magnitudine apparente:	9.189
Moto proprio RA:	30.2
Moto proprio Dec:	-11.6
B-T magnitude:	9.764
V-T magnitude:	9.237

Cataloghi e designazioni:

Nomi esatti	(Edit)
TYCHO-2 2000	TYC 1469-284-1
USNO-A2.0	USNO-A2 1050-07140505
HIP	HIP 69831

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