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HD 173284


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Ýlgili Makaleler

SANTIAGO 91, a right ascension catalogue of 3387 stars (equinox J2000).
The positions in right ascension of 3387 stars belonging to the Santiago67 Catalogue, observed with the Repsold Meridian Circle at Cerro Calan,National Astronomical Observatory, during the period 1989 to 1994, aregiven. The average mean square error of a position, for the wholeCatalogue, is +/-0.009 s. The mean epoch of the catalogue is 1991.84.

Occultations of stars by solar system objects. VIII - Occultations of catalog stars by asteroids, planets, Titan, and Triton in 1990 and 1991
Predictions are given for occultations of catalog stars by asteroids,planets, Titan, and Triton in 1990 and 1991. The predictions are basedon a computerized comparison of the occulting bodies' ephemerides andnine major star catalogs. The search is complete for all numberedasteroids whose angular diameters exceed 0.08 arcsec during the searchyears. Preliminary ground tracks are shown for the more favorableoccultations.

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Yay
Sað Açýklýk:18h45m55.78s
Yükselim:-34°34'28.6"
Görünürdeki Parlaklýk:8.148
Uzaklýk:219.78 parsek
özdevim Sað Açýklýk:14.5
özdevim Yükselim:1.4
B-T magnitude:9.437
V-T magnitude:8.255

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 173284
TYCHO-2 2000TYC 7416-874-1
USNO-A2.0USNO-A2 0525-38251279
HIPHIP 92070

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