II/272ivo://CDS.VizieR/II/272CDSBucciarelli et al.2007-03-29T12:07:35Z2007-03-29T12:02:51ZCDS support team

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

cds-question@unistra.frphotometryvisible-astronomyWide-band photometryastronomical-reference-materialsWe publish 1653 CCD photometric sequences in the Johnson-Kron-Cousins standard system, distributed both in the northern and southern hemispheres, useful for the calibration of photographic photometry of Schmidt survey plates. The collection and reduction of the CCD data presented here are part of a long-term program devoted to the construction of the Second Guide Star Photometric Catalog (GSPC-II). The GSPC-II is an all-sky catalog of photometric stellar sequences with a limiting magnitude of V=19 or fainter, in the (B), V, and R passbands of the Johnson-Kron-Cousins system. Standard photometric errors are at the level of ~ 0.07 for a V ~ 19 magnitude star. These sequences are being used by teams of the Space Telescope Science Institute (STScI) and the Osservatorio Astronomico of Torino (OATo) for the photometric calibration of the Second Guide Star Catalog.Astron. Astrophys. 368, 335 (2001)https://cdsarc.cds.unistra.fr/viz-bin/cat/II/272CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-tohttp://www-gsss.stsci.edu/Catalogs/GSPC/GSPC2/GSPC2.htm : GSPC2 Home PageII/143 : Guide Star Photometric Catalog, Updated Version 1 (Lasker+ 1988,1996)I/305 : The GSC2.3 Catalog (STScI, 2006)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=II/272https://vizier.iucaa.in/viz-bin/VizieR-2?-source=II/272http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=II/272https://vizier.cds.unistra.fr/viz-bin/votable?-source=II/272https://vizier.iucaa.in/viz-bin/votable?-source=II/272http://vizieridia.saao.ac.za/viz-bin/votable?-source=II/272GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table II/272/gspc24 (The Guide Star Photometric Catalog, Version 2.4)https://vizier.cds.unistra.fr/viz-bin/conesearch/II/272/gspc24?https://vizier.iucaa.in/viz-bin/conesearch/II/272/gspc24?http://vizieridia.saao.ac.za/viz-bin/conesearch/II/272/gspc24?GETtext/xml+votable180.050000true283.454488.647860.0055555555555555565/42 1166 1192 1719 1750 1925 2004 2261 3056 3754 4089 5920 7204 8064 8116 10216 10361 10424 6/2 39 72 73 75 106 107 127 130 136 155 188 190 192 193 203 206 219 241 256 270 279 292 293 315 318 359 401 404 417 426 469 471 486 487 539 542 550 590 651 659 665 752 754 793 808 939 944 980 982 999 1005 1038 1060 1114 1115 1173 1191 1202 1216 1250 1251 1256 1257 1307 1329 1386 1392 1394 1408 1422 1439 1448 1449 1451 1461 1472 1482 1494 1500 1504 1513 1515 1554 1560 1582 1633 1650 1687 1708 1710 1721 1723 1756 1763 1769 1797 1799 1837 1848 1876 1878 1900 1999 2021 2045 2086 2149 2160 2215 2218 2219 2226 2294 2366 2376 2378 2395 2417 2436 2461 2474 2475 2501 2504 2512 2537 2539 2584 2600 2602 2605 2607 2626 2639 2661 2681 2684 2706 2712 2717 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48936 48973 48975 48981 49002 49048 49050 49065 49103 49128 49130https://cdsarc.cds.unistra.fr/viz-bin/moc/II/272?format=asciiOpticaldefaultII/272/gspc24The Guide Star Photometric Catalog, Version 2.4recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDObject identifier (Field+Sequential Identifier)meta.id;meta.maincharRAJ2000Right ascension J2000degpos.eq.ra;meta.mainindexedDEJ2000Declination J2000degpos.eq.dec;meta.mainindexedo_BmagNumber of observations in Bmeta.numberintBmag? B magnitude from Aperture photometrymagphot.mag;em.opt.Bfloatnullablee_Bmag? Mean error on Bmagmagstat.error;phot.mag;em.opt.BfloatnullableBmag1? B magnitude from PSF fittingmagphot.mag;em.opt.Bfloatnullablee_Bmag1? Mean error on Bmag1magstat.error;phot.mag;em.opt.Bfloatnullableo_VmagNumber of observations in Vmeta.numberintVmag? V magnitude from Aperture photometrymagphot.mag;em.opt.Vfloatnullablee_Vmag? Mean error on Vmagmagstat.error;phot.mag;em.opt.VfloatnullableVmag1? V magnitude from PSF fittingmagphot.mag;em.opt.Vfloatnullablee_Vmag1? Mean error on Vmag1magstat.error;phot.mag;em.opt.Vfloatnullableo_RmagNumber of observations in Rmeta.numberintRmag? R magnitude from Aperture photometrymagphot.mag;em.opt.Rfloatnullablee_Rmag? Mean error on Rmagmagstat.error;phot.mag;em.opt.RfloatnullableRmag1? R magnitude from PSF fittingmagphot.mag;em.opt.Rfloatnullablee_Rmag1? Mean error on Rmag1magstat.error;phot.mag;em.opt.Rfloatnullable