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HD 169416


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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. II
A second list is presented of stars that have been tested for theirsuitability as astrometric links between the Hipparcos satellite and theSpace Telescope. A speckle interferometer and autocorrelator were used,first on the 1.9-m telescope of the Mt. Stromlo and Siding SpringObservatories, and then, after discarding 16 stars showing evidence of abinary nature, on the Anglo-Australian 3.9-m telescope. Results aregiven for 123 stars. Combining the present list with the 1984 list, itis estimated that 29 percent of the original selection of 'cleanlooking' stars (on sky survey prints) are expected to be multiple at theresolution of the 3.9-m telescope, 0.03-0.7 arcsec.

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Yilanci
Sað Açýklýk:18h24m09.04s
Yükselim:+10°57'28.2"
Görünürdeki Parlaklýk:7.819
Uzaklýk:218.341 parsek
özdevim Sað Açýklýk:-4.4
özdevim Yükselim:2.4
B-T magnitude:8.01
V-T magnitude:7.835

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 169416
TYCHO-2 2000TYC 1027-427-1
USNO-A2.0USNO-A2 0975-11466066
HIPHIP 90181
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