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geos circulares

 

 

 

 

 Todos los archivos están en formato pdf de Adobe Acrobat

All archives are in pdf Adobe Acrobat format

  

GEOS CIRCULAR ON ECLIPSING BINARIES

 

EB 00  Preliminary declaration

EB 01  The under-observed star AY Pegasi as a new Algol-type variable with a 2,439 day period

EB 02  1 Persei, a low amplitude eclipsing binary, has a period of 25,939 days and an elliptical orbit

EB 03  List of minima

EB 04  First ephemeris for VZ Psc, an EW-type binary system

EB 05  Observations visuelles de VW Cephei en 1975

EB 06  List of minima and accurate determination of mean minimum for VW Cep

EB 07  Analysis of curves and determination of the orbital elements for the variables KR Lac, MQ Cep, GS Lac, LW Lac

EB 08  44 times of minimum and first ephemeris for the EW star FZ Orionis

EB 09  Minima of VW Cephei observed in summer 1978 and accurate determination of a mean minimum

EB 10  Large O-C noted for RT Ursae Minoris

EB 11  LO Andromedae, a new close eclipsing binary system

EB 12  Eclipsing variable stars in neighbouring galaxies, I - variable G in M31 Andromedae

EB 13  List of minima and accurate determination of mean minimum for V567 Oph

EB 14  Eclipsing variable stars in neighbouring galaxies, II - discussion of the light curve of V55 in NGC 2403

EB 15  Eclipsing variable stars in neighbouring galaxies, III - discussion of light curve of V31 in IC 1613

EB 16  19 times of minima and first ephemeris for the EB star RRVI-51

EB 16  revised edition 19 times of minima and first ephemeris for the EB star RRVI-51

EB 17  Revised ephemeris for the eclipsing binary PP Lac

EB 18  Revised ephemeris for the eclipsing variable V2203 Ophiuchi

EB 19  Revised ephemeris for the eclipsing binary RS Ser

EB 20  RT Ursae Minoris, an eclipsing binary with variable period

EB 21  NSV 7457 Her, a new EW star with an unusual B-V light curve

EB 22  AP And, results of the first photoelectric measurements and revision of the elements

EB 23  New elements for the period of BI CVn

EB 24  NSV 5598 is not a rapid variable star

EB 25  NSV 11321 Lyr, variability and light elements

EB 26  NSV 5339, a very short period EB variable

EB 27  The period elements of V501 Her

EB 28  V1125 Oph, type and period

EB 29  Photometric characteristics of the of the eclipsing binary V355 Aur

EB 30  Visual estimates and TAROT measurements of MP Del

 

 

GEOS CIRCULAR ON ASTEROIDAL OCCULTATIONS

 

AO 00  Preliminary declaration

AO 01  Surveillance of predicted events, fisrt list july-october 1984

AO 02  Surveillance of predicted events, second list november-december 1984

 

 

GEOS CIRCULAR ON CEPHEIDS

  

CEP 00  Preliminary declaration

CEP 01  Determinations of maxima for V526 Aql, BD Cas and V514 Cyg, Important O-C values observed  for V526 Aql and BD Cas

CEP 02  GEOS RR Lyr survey: FM Del is indeed a cepheid

 

 

GEOS CIRCULAR ON RR LYR TYPE VARIABLES

 

RR 00  Preliminary declaration
RR 01  FO Virginis, 1977 observations
RR 02  131 new maxima of the light variations of DY Herculis
RR 03  133 times of maximum and the fisrt ephemeris for the RRc star VZ Draconis
RR 04  New maxima of CY Aquarii obsedrved in august 1980 and accurate determination of a mean maximum
RR 05  Improved element for the dwarf cepheid V657 Oph
RR 06  BP Peg, 74 times of maxima, improvement of the ephemeris and evidence of visually observed blazhko effect
RR 07  Photoelectric observations of CY Aquarii observed in august 1982 at the Junjfraujoch observatory
RR 08  A new period of AX UMa
RR 09  Analysis of 1961-1982 maxima of VZ Draconis, an RRc with a variable period
RR 10  A revised ephemeris for the RRab variable BB Bootis
RR 11  Observations of CY Aquarii 1981-1984 and recent evolution of the period
RR 12  Improvement of the period for the RR Lyr star TZ Aurigae
RR 13  NSV 4219 UMa, an RR Lyr variable of the RRab type
RR 14  List of visual and photographic maxima of the RR Lyrae stars
RR 15  List of visual and photographic maxima of RR Lyrae stars
RR 16  List of visual, photographic and CCD maxima of RR Lyrae stars
RR 17  List of visual dns CCD maxima of RR Lyrae stars
RR 18  VW CVn, a very irregular RR Lyrae star
RR 19  List of visual, CCD and photoelectric maxima of RR Lyrae stars
RR 20  Fisrt light elements for the RR Lyr star NSV 7366
RR 21  Maxima of RR Lyr stars observed by the automated telescope TAROT
RR 22  List of visual and photographic maxima of RR Lyrae stars (1974-1991)
RR 23  List of visual maxima of RR Lyrae stars
RR 24  Second list of maxima of RR Lyr stars observed by the automated telescope TAROT
RR 25  Third list of maxima of RR Lyr stars observed by the automated telescope TAROT
RR 26  Fourth list of maxima of RR Lyr stars observed by the automated telescope TAROT
RR 27  List of photoelectric, CCD and visual maxima of RR Lyrae stars.pdf
RR 28  Fifth list of maxima of RR Lyr stars observed by the automated telescope TAROT
RR 29  Sixth list of maxima of the GEOS RR Lyr survey
RR 30  List of CCD and visual maxima of RR Lyrae stars
RR 31  Seventh list of maxima of RR Lyr stars observed by the automated telescope TAROT
RR 32  List of visual maxima of RR Lyrae stars
RR 33  Eighth list of maxima of the GEOS RR Lyr survey
RR 34  New ephemerides of RR Lyrae stars
RR 35  Ninth list of maxima of RR Lyr stars observed by the automated telescopes TAROT
RR 36  List of CCD and visual maxima of RR Lyrae stars
RR 37  Tenth list of maxima of RR Lyr stars observed by the automated telescopes TAROT
RR 38  List of CCD and visual maxima of RR Lyrae stars
RR 39  Eleventh list of maxima of RR Lyr stars observed by the automated telescopes TAROT
RR 40  List of CCD and visual maxima of RR Lyrae stars
RR 41  GY Peg, a new strongly varying Blazhko RRab variable
RR 42  V759 Cyg, a RR Lyr variable with a small amplitude Blazhko effect
RR 43  Twelfth list of maxima of RR Lyr stars observed by the automated telescopes TAROT
RR 44  List of light maxima of RR Lyr stars observed with the robotic telescope FARO nov-2008 jan-2010
RR 45  List of CCD, photographic and visual maxima of RR Lyr stars
RR 46  The GEOS RR Lyr Survey. Thirteent list of maxima
RR 47  List of CCD and visual maxima of RR Lyr stars
RR 48  The GEOS RR Lyr Survey. Fourteent list of maxima
RR 49  List of CCD and visual maxima of RR Lyr stars
RR 50  List of visual maxima of RR Lyr stars
RR 51  Fifteenth list of maxima of RR Lyr stars observed by the automated telescope TAROT
RR 52  List of visual maxima of RR Lyr stars
RR 53  New insight into the period variations in field Galactic RRab stars
RR 54  List of visual maxima of RR Lyr stars
RR 55  List of visual maxima of RR Lyr stars

 

 

GEOS CIRCULAR ON SMALL AMPLITUDE VARIABLES

  

SA 00  Preliminary declaration
SA 01  The Be star HD 58050 as a new 3-hour period large amplitude Beta CMa variable

 

 

GEOS CIRCULAR ON RED VARIABLE STARS

 

SR 00  Preliminary declaration
SR 01  Resultats de la premiere campagne franco-italienne d'observations d'etoiles variables, OP Her
SR 02  WY Gem, a new semi-regular variable with peruiod of 169 days
SR 03  7-passband photometry of variable star V449 Cygni and its comparison stars
SR 04  No eclipses in the Lb variable star RR Arietis
SR 05  Photoelectric B and V photometry of comparison stars for eight mira-type variable star fields
SR 06  Periodical features in the Lc variable star BU Geminorum during the years 1972-1977
SR 07  Photoelectric B and V photometry of comparison stars for U Cyg and X Oph
SR 08  V2113 Oph, four years of observations 1982-85
SR 09  Photoelectric B and V photometry of comparison stars for seven mira-type variable stars
SR 10  The highly probable constancy of IS Geminorum
SR 11  Photoelectric B and V band photometry of comparison stars in 12 variable star fields
SR 12  Photoelectric B and V band photometry of comparison stars for BC Oph
SR 13  U Del slow variations with two apparent periods
SR 14  Visual estimates and TAROT measurement of FGBoo

 

 

GEOS CIRCULAR ON NEW VARIABLES

  

NV 01  New variable starts in Camelopardalis and Monoceros

 

 

  

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