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HD 164491


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Appulses and occultations of SAO stars by Mercury - 1987-1995
While no readily observable occultations were found in the presentpredictions for 78 close approaches by Mercury to stars in theSmithsonian Astrophysical Observatory catalog (1966) over the periodJanuary 1, 1987-December 31, 1995, seven occultations of stars withvisual magnitudes of 7 or fainter are noted. These events are presentedwith a view to searches for material in the vicinity of Mercury, as wellas investigations requiring close, bright stars for the improvement ofground-based Mercury images.

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Observation and Astrometry data

Constellation:Τοξότης
Right ascension:18h02m21.98s
Declination:-21°57'47.3"
Apparent magnitude:8.772
Distance:20000 parsecs
Proper motion RA:1.4
Proper motion Dec:2.2
B-T magnitude:10.249
V-T magnitude:8.894

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 164491
TYCHO-2 2000TYC 6263-56-1
USNO-A2.0USNO-A2 0675-23903717
HIPHIP 88325

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