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HD 49699


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The 74th Special Name-list of Variable Stars
We present the Name-list introducing GCVS names for 3153 variable starsdiscovered by the Hipparcos mission.

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.

Miscellaneous spectroscopic notes
Results of slit-spectrograph observations are reported for approximately260 stars. The data presented range from recognition of many new Ap, Am,and other unusual stars to H-alpha observations of early-typesupergiants and Be stars. The material discussed was obtained over thepast 40 years at a number of U.S. observatories and at the DominionAstrophysical Observatory in Victoria, B.C.

Optical and infrared photometry of southern early-type shell stars and pre-main-sequence variables
A catalogue of optical and infrared photometry is presented covering theepoch 1980 to 1984 for a sample of 53 pre-main-sequence stars and otheremission-line objects, mainly of early spectral type. The JHKL data aregenerally simultaneous with optical photometry in either the UBVRI orStromgren uvby systems, and the H beta index is used as a photometricmonitor of spectrum variability. This catalogue will form a valuabledata set for future studies of the nature and origin of variability inthis class of object.

A Catalogue of Be-Stars
Not Available

Second Supplement to the Mount Wilson Catalogue and Bibliography of Stars of Classes B and a whose Spectra have Bright Hydrogen Lines.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1949ApJ...110..387M&db_key=AST

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Buyuk Kopek
Sað Açýklýk:06h49m15.87s
Yükselim:-12°40'04.5"
Görünürdeki Parlaklýk:7.268
Uzaklýk:609.756 parsek
özdevim Sað Açýklýk:-5.1
özdevim Yükselim:1.7
B-T magnitude:7.359
V-T magnitude:7.276

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 49699
TYCHO-2 2000TYC 5387-825-1
USNO-A2.0USNO-A2 0750-02854327
HIPHIP 32696
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