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TYC 3596-1036-1


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Speckle Interferometry at Mount Wilson Observatory: Observations Obtained in 2006-2007 and 35 New Orbits
Results are presented for 607 speckle interferometric observations ofdouble stars, as well as 222 measures of single stars or unresolvedpairs. All data were obtained in 2006 and 2007 at the Mount WilsonObservatory, using the 2.5 m Hooker telescope. Separations range from0farcs06 to 6farcs31, with a median of 0farcs34. These three observingruns concentrated on binaries in need of confirmation (mainly Hipparcosand Tycho pairs), as well as systems in need of improved orbitalelements. New orbital solutions have been determined for 35 systems as aresult.

The High Angular Resolution Multiplicity of Massive Stars
We present the results of a speckle interferometric survey of Galacticmassive stars that complements and expands upon a similar survey madeover a decade ago. The speckle observations were made with the Kitt PeakNational Observatory and Cerro Tololo Inter-American Observatory 4 mtelescopes and USNO speckle camera, and they are sensitive to thedetection of binaries in the angular separation regime between 0farcs03and 5'' with relatively bright companions (ΔV < 3). We reporton the discovery of companions to 14 OB stars. In total we resolvedcompanions of 41 of 385 O-stars (11%), 4 of 37 Wolf-Rayet stars (11%),and 89 of 139 B-stars (64%; an enriched visual binary sample that weselected for future orbital determinations). We made a statisticalanalysis of the binary frequency among the subsample that are listed inthe Galactic O Star Catalog by compiling published data on other visualcompanions detected through adaptive optics studies and/or noted in theWashington Double Star Catalog and by collecting published informationon radial velocities and spectroscopic binaries. We find that the binaryfrequency is much higher among O-stars in clusters and associationscompared to the numbers for field and runaway O-stars, consistent withpredictions for the ejection processes for runaway stars. We present afirst orbit for the O-star δ Orionis; a linear solution of theclose, apparently optical, companion of the O-star ι Orionis; andan improved orbit of the Be star δ Scorpii. Finally, we listastrometric data for another 249 resolved and 221 unresolved targetsthat are lower mass stars that we observed for various other scienceprograms.

Two-colour photometry for 9473 components of close Hipparcos double and multiple stars
Using observations obtained with the Tycho instrument of the ESAHipparcos satellite, a two-colour photometry is produced for componentsof more than 7 000 Hipparcos double and multiple stars with angularseparations 0.1 to 2.5 arcsec. We publish 9473 components of 5173systems with separations above 0.3 arcsec. The majority of them did nothave Tycho photometry in the Hipparcos catalogue. The magnitudes arederived in the Tycho B_T and V_T passbands, similar to the Johnsonpassbands. Photometrically resolved components of the binaries withstatistically significant trigonometric parallaxes can be put on an HRdiagram, the majority of them for the first time. Based on observationsmade with the ESA Hipparcos satellite.

Photoelectric UBV photometry in some Milky Way fields
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1973A&AS...11..365W&db_key=AST

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관측 및 측정 데이터

별자리:고니자리
적경:21h09m59.12s
적위:+49°01'08.5"
가시등급:8.994
거리:10000000 파섹
적경상의 고유운동:-2.5
적위상의 고유운동:-3.7
B-T magnitude:9.464
V-T magnitude:9.033

천체목록:
일반명   (Edit)
TYCHO-2 2000TYC 3596-1036-1
USNO-A2.0USNO-A2 1350-13567185
HIPHIP 104484

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