V1027 Cygni UBV and JHKLM photometry

We present the results of our UBV and JHKLM photometry for the semiregular pulsating variable V1027 Cyg, a supergiant with an infrared excess, over the period from 1997 to 2015 (UBV) and in 2009-2015 (JHKLM). Together with the new data, we analyze the photometric observations of V1027 Cyg that we have obtained and published previously. Our search for a periodicity in the UBV brightness variations has led to several periods from P=212d to 320d in different time intervals. We have found the period P=237d based on our infrared photometry. The variability amplitude, the lightcurve shape, and the magnitude of V1027 Cyg at maximum light change noticeably from cycle to cycle.

Identifier
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/PAZh/42/831
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/PAZh/42/831
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/PAZh/42/831
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/PAZh/42/831
Provenance
Creator Arkhipova V.P.; Taranova O.G.; Ikonnikova N.P.; Esipov V.F.,Komissarova G.V.; Shenavrin V.I.; Burlak M.A.
Publisher CDS
Publication Year 2016
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy