J/A+A/575/A52ivo://CDS.VizieR/J/A+A/575/A52doi:10.26093/cds/vizier.35750052CDSSantos-Sanz P.Ortiz J.L.Morales N.Duffard R.Pozuelos F.Moreno F.,Fernandez-Valenzuela E.2017-06-21T08:21:55Z2015-02-20T08:37:58ZCDS support team

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

cds-question@unistra.frcometsphotometryWe observed comet C/2012 S1 (ISON) during six nights in February 2013 when it was at 4.8AU from the Sun. At this distance and time the comet was not very active and it was theoretically possible to detect photometric variations likely due to the rotation of the cometary nucleus. The goal of this work is to obtain differential photometry of the comet inner coma using different aperture radii in order to derive a possible rotational period.2015A&A...575A..52Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/575/A52CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/564/L2 : CH3OH line parameters in comets ISON & Lovejoy (Agundez+, 2014)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/575/A52https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/575/A52http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/575/A52https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/575/A52https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/575/A52http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/575/A52GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/575/A52/table2Photometry results of comet C/2012 S1 (ISON) from six nights in February 2013recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintJDJulian datesdtime.epochdoubleRmagR magnitudemagphot.mag;em.opt.RfloatmR(1,1)R magnitude corrected for heliocentric and geocentric distances (not for phase angle)magphot.mag;em.opt.Rfloatrh[4.77/4.84] Heliocentric distanceAUpos.distance;pos.heliocentricfloatDelta[4.00/4.01] Geocentric distance {Delta}AUpos.distance;pos.geocentricfloatalpha[6.9/8.3] Phase angle {alpha}degpos.phaseAngfloat