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HD 170281


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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.

Walraven photometry of nearby southern OB associations
Homogeneous Walraven (VBLUW) photometry is presented for 5260 stars inthe regions of five nearby southern OB associations: Scorpio Centaurus(Sco OB2), Orion OB1, Canis Major OB1, Monoceros OB1, and Scutum OB2.Derived V and (B - V) in the Johnson system are included.

UBV photometry of the Groningen-Palomar variable star fields
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1973AJ.....78..401W&db_key=AST

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Yay
Sað Açýklýk:18h30m00.22s
Yükselim:-33°32'51.9"
Görünürdeki Parlaklýk:8.229
Uzaklýk:262.467 parsek
özdevim Sað Açýklýk:-1.5
özdevim Yükselim:-2.5
B-T magnitude:10.445
V-T magnitude:8.412

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 170281
TYCHO-2 2000TYC 7398-1015-1
USNO-A2.0USNO-A2 0525-36401992
HIPHIP 90670

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