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HD 169389


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관련 글

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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관측 및 측정 데이터

별자리:뱀주인자리
적경:18h23m59.39s
적위:+10°33'02.3"
가시등급:8.205
거리:187.266 파섹
적경상의 고유운동:-2.9
적위상의 고유운동:-15.2
B-T magnitude:9.587
V-T magnitude:8.32

천체목록:
일반명   (Edit)
HD 1989HD 169389
TYCHO-2 2000TYC 1027-878-1
USNO-A2.0USNO-A2 0975-11455499
HIPHIP 90168

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