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HD 97327


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Observations of double stars and new pairs. XV
The study reports visual and photographic measures listed for 1150 pairsobtained in the time frame 1989.91-1992.15, including 221 new doublestars. Magnitudes were estimated for a part of the objects, especiallythe fainter ones. Plate orientations were calculated from field stars ofknown positions and were precessed to the epoch; numbers of nights andof measured exposures are given. Reobservation of faint, neglected pairsreveal many corrections to the data from the old discovery lists.

The calibration of the Stromgren photometric system for A, F and early G supergiants. I - The observational data
An empirical calibration of the Stromgren uvby-beta photometric systemfor the A, F, and early G supergiants is being derived. This paperexplains the observational program and the photometric reductiontechniques used and presents a catalog of new Stromgren photometry forover 600 A, F, and G supergiants.

ICCD speckle observations of binary stars. V - Measurements during 1988-1989 from the Kitt Peak and the Cerro Tololo 4 M telescopes
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1990AJ.....99..965M&db_key=AST

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Su Yilani
Sað Açýklýk:11h11m49.04s
Yükselim:-34°49'05.7"
Görünürdeki Parlaklýk:8.363
Uzaklýk:106.045 parsek
özdevim Sað Açýklýk:-23
özdevim Yükselim:-14.2
B-T magnitude:8.882
V-T magnitude:8.406

Kataloglar ve belirtme:
Özgün isimleri
HD 1989HD 97327
TYCHO-2 2000TYC 7209-1638-1
USNO-A2.0USNO-A2 0525-13873125
HIPHIP 54693
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