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HD 65259


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A catalogue of eclipsing variables
A new catalogue of 6330 eclipsing variable stars is presented. Thecatalogue was developed from the General Catalogue of Variable Stars(GCVS) and its textual remarks by including recently publishedinformation about classification of 843 systems and making correspondingcorrections of GCVS data. The catalogue1 represents thelargest list of eclipsing binaries classified from observations.

SB9: The ninth catalogue of spectroscopic binary orbits
The Ninth Catalogue of Spectroscopic Binary Orbits(http://sb9.astro.ulb.ac.be) continues the series of compilations ofspectroscopic orbits carried out over the past 35 years by Batten andcollaborators. As of 2004 May 1st, the new Catalogue holds orbits for2386 systems. Some essential differences between this catalogue and itspredecessors are outlined and three straightforward applications arepresented: (1) completeness assessment: period distribution of SB1s andSB2s; (2) shortest periods across the H-R diagram; (3)period-eccentricity relation.

Catalogue of Algol type binary stars
A catalogue of (411) Algol-type (semi-detached) binary stars ispresented in the form of five separate tables of information. Thecatalogue has developed from an earlier version by including more recentinformation and an improved layout. A sixth table lists (1872) candidateAlgols, about which fewer details are known at present. Some issuesrelating to the classification and interpretation of Algol-like binariesare also discussed.Catalogue is only available in electronic form at the CDS via anonymousftp to cdsarc.u-strasbg.fr (130.79.128.5) or viahttp://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/417/263

Stars with the Largest Hipparcos Photometric Amplitudes
A list of the 2027 stars that have the largest photometric amplitudes inHipparcos Photometry shows that most variable stars are all Miras. Thepercentage of variable types change as a function of amplitude. Thiscompilation should also be of value to photometrists looking forrelatively unstudied, but large amplitude stars.

Stardial: an Autonomous Astronomical Camera on the World Wide Web
We describe the use of an autonomous astronomical camera, called``Stardial,'' for undergraduate instruction. Stardial delivers images ofthe night sky nearly in real-time to the world wide web(www.astro.uiuc.edu/~stardial/). The world wide web (WWW) interface isrobust, inexpensive, and accommodates many students asynchronously withrespect to the instructor(s). The guiding philosophy is to providestudents with authentic astronomical data so that they may learn aboutscience by doing it themselves. Students respond favorably to theopportunity to learn from their own experiences with authentic data,complete with its irregularities and its surprises. Stardial has beenoperational for one academic year (1996-97) at the University ofIllinois at Urbana-Champaign. In this paper we describe Stardial'sinstrumentation, some of the curriculum based upon Stardial's uniquedata, and the experiences of students who have used Stardial. Weconclude with possible research topics using Stardial data and with abrief look to the future of remote laboratories. (SECTION: AstronomicalInstrumentation)The name ``Stardial'' derives from the fact that like a sundial,Stardial is a stationary device placed outside 24 hours a day, and thatboth depend on and make evident the rotation of the Earth. A sundialoperates with sunlight, while Stardial operates with starlight. Therethe similarity ends.

Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Subtittle: Radial velocities: The Wilson-Evans-Batten catalogue.
We give a common version of the two catalogues of Mean Radial Velocitiesby Wilson (1963) and Evans (1978) to which we have added the catalogueof spectroscopic binary systems (Batten et al. 1989). For each star,when possible, we give: 1) an acronym to enter SIMBAD (Set ofIdentifications Measurements and Bibliography for Astronomical Data) ofthe CDS (Centre de Donnees Astronomiques de Strasbourg). 2) the numberHIC of the HIPPARCOS catalogue (Turon 1992). 3) the CCDM number(Catalogue des Composantes des etoiles Doubles et Multiples) byDommanget & Nys (1994). For the cluster stars, a precise study hasbeen done, on the identificator numbers. Numerous remarks point out theproblems we have had to deal with.

UBV observations of the eclipsing binary FW Monocerotis
Photoelectric observations of FW Monocerotis in U, B, and V filters havebeen discussed. The depths of the primary minimum in UBV colors are 2.63magnitudes, 2.17 magnitudes, and 1.76 magnitudes, respectively. Novariation in the period has been found and its revised value is3.8735868 days.

A Study of the DM and SD Type Eclipsing Variables by Means of the Cluster Analysis Technique
Not Available

Absolute parameters of stars in semidetached eclipsing binary systems
A number of questions concerning the absolute parameters of stars insemidetached binary systems are addressed. Consideration is given to:similarities between Algol-type binaries and unevolved detached binarieswith respect to the mass-luminosity law; and the single-line classicalAlgol candidates with known mass functions and photometric solutions formass ratio. It is shown that the validity of the mass luminosity-lawcannot be verified for individual Algol-type binaries though it doeshold well on average; and (2), the existence of a definite class ofsd-binaries not containing a proportion of significantly undersize typesis apparent. The conclusions are found to be in general agreement withthe observations of Hall and Neff (1979).

A Catalogue of Classical Evolved Algol-Type Binary Candidate Stars
Not Available

Statistics of categorized eclipsing binary systems Lightcurve shapes, periods, and spectral types
The statistics of the light curve morphologies, eclipse depths, orbitalperiods, and spectral types of about 1000 eclipsing binary systems areexamined, after attempting to subdivide these binaries into variousbasic evolutionary categories. The applicability of statisticalcriteria, based on light curve morphologies and eclipse depths, for thecategorization of eclipsing binaries has been found more limited thanpreviously believed. In particular, EW-type light curves turn out to begood indicators of contact systems (though not conversely), while EA-and EB-type light curves have little physical significance. Moreover,the study reveals a strong deficit of short-period noncontact systems inthe whole spectral range, together with an underabundance of early-typecontact binaries (compared with the number of late-type contact pairs).Interestingly, the distribution of evolved Algol-type systems isshifted, on average, to periods longer than those of unevolved detachedsystems in the OB and early A spectral range (and to shorter periods inthe F spectral range).

A uvby, beta photometric survey of southern hemisphere
A uvby, beta photometric study of southern hemisphere eclipsing binarystars has been undertaken at Cerro Tololo Inter-American Observatory.The standardized colors and V magnitudes for 288 binaries at quadratureand/or at minimum are presented, along with an indication of theaccuracy of the standardization and photometry. Discussions of theresolving time of the pulse-counting photometers and of the atmosphericextinction at CTIO are included.

A catalogue of parameters for eclipsing binaries
Not Available

Photoelectrically-Neglected Eclipsing Binaries
Not Available

Seventh catalogue of the orbital elements of spectroscopic binary systems.
Not Available

Spectroscopic binaries with circular orbits.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1971AJ.....76..544L&db_key=AST

Uber die Massen von Bedeckungsveranderlichen mit bekannter Radialgeschwindigkeit nur des Hauptsterns.
Not Available

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Сазвежђа:Једнорог
Ректацензија:07h57m38.36s
Deклинација:-07°11'22.0"
Apparent магнитуда:9.976
Proper motion RA:-4.8
Proper motion Dec:2.5
B-T magnitude:10.108
V-T magnitude:9.987

Каталог и designations:
Proper имена   (Edit)
HD 1989HD 65259
TYCHO-2 2000TYC 4845-2526-1
USNO-A2.0USNO-A2 0825-05786032
HIPHIP 38898

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