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TYC 5794-221-1


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The Program to Link the HIPPARCOS Reference Frame to an Extragalactic Reference System Using the Fine Guidance Sensors of the Hubble Space Telescope
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1997AJ....114.2796H&db_key=AST

Speckle interferometry of HIPPARCOS link stars
Speckle interferometry has been carried out on 39 stars that had beenselected as provisionally suitable for linking Hipparcos positionalmeasurements to an extragalactic reference frame by Space Telescope. TheImperial College, London, speckle interferometer and the autocorrelatoron the Anglo-Australian 3.9-m telescope are used. The result is thatabout 30 percent of the stars selected turned out to be confirmed orsuspected multiple stars in the range 0.03-0.7 arcsec.

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Observation and Astrometry data

Constellation:やぎ座
Right ascension:21h32m18.59s
Declination:-12°04'17.7"
Apparent magnitude:10.455
Proper motion RA:11
Proper motion Dec:-15.9
B-T magnitude:11.895
V-T magnitude:10.574

Catalogs and designations:
Proper Names   (Edit)
TYCHO-2 2000TYC 5794-221-1
USNO-A2.0USNO-A2 0750-20851828
HIPHIP 106347
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