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HD 108615


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A method for the correction of proper motions of stars around an extragalactic object in photographic astrometry
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1991A&A...241..303D&db_key=AST

Photoelectric observations of lunar occultations. XV
The last (or possibly penultimate) paper in a series on lunaroccultations presents observations of 404 phenomena, preceded by somegeneral remarks of a retrospective nature. The series of observationsbegan in 1968. Data for 20 doubles or suspected doubles are presented,ranked in order of certainty, with designation 3 representing thesurest. Thirteen of the cases refer to stars not previously noted asdoubles. Seven determinations of angular diameters are presented, ofwhich three have been previously observed.

Precise positions in the FK4 system for 120 radio source reference stars
Positions are given in the FK4 system for 120 primary reference starsgrouped around the optical counterparts of 11 extragalactic radiosources. The observations were made in 1979 and 1980 with the 6-in.transit circle of the U.S. Naval Observatory. The results reported hererepresent the first step in a three-tiered process to determineastrometric positions of the optical counterparts referred to the systemof the FK4. One application of such positions is the determination of anearly inertial optical reference frame, which eventually may becompared to a reference frame at radio wavelengths.

Jupiter and Galilean satellites' positions obtained in April 1978 with the GPO 40 CM /f = 4 m/ of the ESO, La Silla
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1980A&AS...40..375D&db_key=AST

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Observation and Astrometry data

Constellation:Virgo
Right ascension:12h28m36.90s
Declination:+01°37'01.8"
Apparent magnitude:9.731
Proper motion RA:1
Proper motion Dec:-0.3
B-T magnitude:10.372
V-T magnitude:9.784

Catalogs and designations:
Proper Names
HD 1989HD 108615
TYCHO-2 2000TYC 282-449-1
USNO-A2.0USNO-A2 0900-07160388
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