J/AcA/50/177ivo://CDS.VizieR/J/AcA/50/177doi:10.26093/cds/vizier.120500177CDSPojmanski G.2025-09-25T20:14:35Z2006-11-28T06:43:12ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frvariable-starssurveysapparent-magnitudeResults of the first two years of observations using the All Sky Automated Survey prototype camera are presented. More than 140000 stars in 50 Selected Fields covering 300 square degrees were monitored each clear night in the I-band resulting in the ASAS Photometric I-band Catalog containing over 5*10^7^ individual measurements. Nightly monitoring of over 100 standard stars confirms that most of our data remains within {sigma}_I_=0.03mag of the standard I system. Search for the stars varying on the time scales longer than a day revealed about 3800 variable stars (mostly irregular, pulsating and binaries) brighter than 13mag. Only 630 of them are known or suspected variables included in the GCVS (Kholopov 1985, Cat. <II/214>). Among the stars brighter than I~7.5 (which are saturated on our frames) we have found about 50 variables (12 are in the GCVS, 6 others in the Hipparcos catalog (Cat. <I/239>). Because of the large volume of data we present here only selected tables and light curves, but the complete ASAS Catalog of Variable Stars (currently divided into Periodic and Miscellaneous sections) and all photometric data are available on the Internet http://www.astrouw.edu.pl/~gp/asas/asas.html or http://archive.princeton.edu/~asas/2000AcA....50..177Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AcA/50/177CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/264 : ASAS. Catalog of Southern hemisphere (Pojmanski+, 2002-05)II/250 : Combined General Catalogue of Variable Stars (Kholopov+ 1998)I/239 : The Hipparcos and Tycho Catalogues (ESA 1997)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AcA/50/177https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AcA/50/177http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AcA/50/177https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AcA/50/177https://vizier.iucaa.in/viz-bin/votable?-source=J/AcA/50/177http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AcA/50/177GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AcA/50/177/lcper (ASAS Periodic Variables)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AcA/50/177/lcper?https://vizier.iucaa.in/viz-bin/conesearch/J/AcA/50/177/lcper?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AcA/50/177/lcper?GETtext/xml+votable180.050000true14.49580.57830.005555555555555556Cone search capability for table J/AcA/50/177/lcmisc (ASAS Miscellaneous Variables)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AcA/50/177/lcmisc?https://vizier.iucaa.in/viz-bin/conesearch/J/AcA/50/177/lcmisc?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AcA/50/177/lcmisc?GETtext/xml+votable180.050000true13.32080.80830.0055555555555555565/5475 5478 5528 5530 7177 7179 7228 7239 7250 7307 7329 7510 7530 7589 7766 8211 8263 8269 8273-8276 8280 9221 9474-9475 9478 9511 9520 10414 10963 11931 12196 6/0 17750 17816 17822 17841 17844 18028 18030 18549 18568-18570 18592 18720-18721 18773 18779 18801 18803 18859-18861 19005-19007 19050 19089 19092-19094 19100 19136 19204 21501-21503 21843 21845 21895 21925 21936 22071 22076-22077 22079 22124 22186-22187 22208 22868-22869 22871 22925-22927 22936 22938-22939 22949 22961-22962 23101 23139 23144 23146 23148 23150 23552-23554 25599 25749 25751 25792 25934 25944 25947 26025 26174 26257 26260 26271 26961 26965 27021 27032-27033 27211 27233 27238 28687 28698-28699 28707 28713 28720-28722 28728 28890-28891 28894 28901 28903 28916 28920 28951 28981 28994-28995 29004 29024 29227 29242 29313 29315 29328 29951 30031 30034-30035 30044 30046 30064-30065 30113-30116 30118-30119 30124-30126 30269-30271 30314 30355 30364-30365 30400-30402 30464-30465 31053 31057-31059 31062-31063 31068-31070 31089 31139 31142 31144 31146 31148-31149 31294-31295 31377 31380-31382 32836 32838-32839 32848 32850 32856 33073 33089-33091 33112 33124-33125 36863 36881 37213-37215 37890-37891 37894-37895 37906-37907 37910-37911 37916-37918 37925 37936-37937 37954 38039 38043 38088-38090 40958 40993-40995 41000 41647 41651-41652 41654 41660 41662 43013 43015 43024-43026 43846-43847 43850-43851 43864 43866 43877-43879 43888-43889 44813 44815 44818-44819 44824-44825 44848 47719 47723 47728 47730-47731 47736-47738 48775 48781 48783 48790 48792 48794 48897-48900 48902-48905 48908https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AcA/50/177?format=asciiOpticaldefaultJ/AcA/50/177/lcperASAS Periodic VariablesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintASASIdentification (HHMMSS+DDMM.m), ASAS JHHMMSS+DDMM.m in Simbadmeta.id;meta.maincharImagI magnitudemagphot.mag;em.opt.IfloatAmpAmplitude of variationmagarith.rate;phot.magfloate_Amprms uncertainty on Ampmagstat.errorfloatPerPerioddtime.perioddoubleNobsNumber of observationsmeta.numberintFieldsFieldsmeta.id;obs.fieldcharVnameCross-identification to GCVS (Cat. II/250)meta.id.crosschar_RARight ascension (derived from ASAS) for Eq=J2000degpos.eq.ra;meta.main_DEDeclination (derived from ASAS) for Eq=J2000degpos.eq.dec;meta.mainJ/AcA/50/177/lcmiscASAS Miscellaneous VariablesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintASASIdentification (HHMMSS+DDMM.m), ASAS JHHMMSS+DDMM.m in Simbadmeta.id;meta.maincharImagI magnitudemagphot.mag;em.opt.IfloatAmpAmplitude of variationmagarith.rate;phot.magfloate_Amprms uncertainty on Ampmagstat.errorfloatNobsNumber of observationsmeta.numberintFieldFieldsobs.fieldcharVnameCross-identification to GCVS (Cat. II/250)meta.id.crosscharClassSpectral classificationspect.indexcharPer? Perioddtime.perioddoublenullable_RARight ascension (derived from ASAS) for Eq=J2000degpos.eq.ra;meta.main_DEDeclination (derived from ASAS) for Eq=J2000degpos.eq.dec;meta.main