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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.
| 149 Bedeckungssterne der BAV-Programme. Eine Analyse der Beobachtungstatigkeit seit den Angangen.
Not Available
| Photoelectric Minima of Selected Eclipsing Binaries and Maxima of Pulsating Stars
Not Available
| Neglected binaries of special interest
Not Available
| Photoelectric Minima and Maxima of Selected Eclipsing and Pulsating Variables
Not Available
| Eclipsing binaries, Pegasus to Sagittarius, in 1972-1987
Photoelectric and visual observations of 34 known and suspectedeclipsing binaries are discussed. Revised light elements are derived forDM Per and Beta Per. EL Sge is confirmed to vary with a period ofapproximately 0.333d. Large deviations from the published elements arereported for BG Peg, AB Per, LS Per, SU Psc, SZ Psc and TU Sge. Thecatalogue period of BQ Peg is probably incorrect.
| Period study of GH Pegasi
The period study of the eclipsing binary system GH Pegasi has beenpresented for the first time. A new period (P = 2.556135 d) of GH Peg,based on all available times of minima, has been given. O-C diagrams ofthe system have also been presented for the first time, and the periodchanges present in the system have been analyzed. The period showschanges around the years 1972 and 1981. The total period change indifferent portions of the O-C diagram, based on the corrected period,ranges from 5.2 x 10 to the -6 d to 7.0 x 10 to the -5 d. Thephotoelectric minima show sufficiently large scatter in the system.
| 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 catalogue of parameters for eclipsing binaries
Not Available
| Three-Colour Photometry of GH Pegasi
The geometrical elements of the system GH Pegasi and a slightly improvedperiod o
| New Bright Eclipsing Variable Stars
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Membro dei seguenti gruppi:
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Osservazione e dati astrometrici
| Costellazione: | Pegaso |
| Ascensione retta: | 21h50m51.63s |
| Declinazione: | +15°16'25.6" |
| Magnitudine apparente: | 9.181 |
| Moto proprio RA: | -2.5 |
| Moto proprio Dec: | -16.9 |
| B-T magnitude: | 9.413 |
| V-T magnitude: | 9.201 |
Cataloghi e designazioni:
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