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HD 140504


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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.

ICCD speckle observations of binary stars. VIII - Measurements during 1989-1991 from the Cerro Tololo 4 M telescope
One-thousand eighty-eight observations of 947 binary star systems,observed by means of speckle interferometry with the 4 m telescope onCerro Tololo, are presented. These measurements, made during the period1989-1991, comprise the second installment of results stemming from theexpansion of our speckle program to the southern hemisphere.

ICCD speckle observations of binary stars. V - Measurements during 1988-1989 from the Kitt Peak and the Cerro Tololo 4 M telescopes
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1990AJ.....99..965M&db_key=AST

Measures of Visual Double Stars
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1980A&AS...39..197W&db_key=AST

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Osservazione e dati astrometrici

Costellazione:Regolo
Ascensione retta:15h46m50.94s
Declinazione:-58°07'30.9"
Magnitudine apparente:6.831
Distanza:131.406 parsec
Moto proprio RA:-23.4
Moto proprio Dec:-41.3
B-T magnitude:7.065
V-T magnitude:6.851

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 140504
TYCHO-2 2000TYC 8705-544-1
USNO-A2.0USNO-A2 0300-24646957
HIPHIP 77294
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