Optical follow-up of ASASSn-18xx (4C 40.01)
ATel #12109; Roberto Nesci
on 13 Oct 2018; 20:42 UT
Credential Certification: Roberto Nesci (Roberto.Nesci@iaps.inaf.it)
Alerted by the ATel #12106 I observed ASASSN-18xx (QSO 4C+40.01) with the 30cm telescope of the Foligno Observatory (K56) and a Canon EOS 550D in the V band on 2018-10-13.79 UT, with 700s exposure. Comparison stars for photometric calibration were taken from the APASS9 catalog: stars down to V=18.0 were detected while the QSO was not visible. The flare reported by the ASASSN was therefore very short, of the order of one day or less.
