Additional Multicolor Photometric Observations of the Latest Eruption of the Recurrent Nova M31N 2008-12a

ATel #12190; P. A. Wysocki, Q. Socia, M. A. Engesser, M. Yenawine, S. M. Stawinski, A. W. Shafter (SDSU)
on 8 Nov 2018; 09:15 UT
Credential Certification: Allen W. Shafter (ashafter@sdsu.edu)

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We report additional multicolor (BVRI) photometry of the recurrent nova M31N 2008-12a obtained with the Mount Laguna 40-inch reflector approximately 1.3 days after the discovery of its most recent eruption (see ATels #12177, #12179, #12181, #12182, #12189). Surprisingly, our most recent data show that the nova has re-brightened in the red (R and I), after appearing to fade during the ~18 hours between our initial observations (ATel #12181) and those of Agnihotri & Raj (ATel #12189). Further observations will be required to confirm whether the photometric evolution of this eruption differs significantly from that seen in previous outbursts.

 
 
     UT Date (mid exp)   Exp (s)    Filter              Magnitude 
 
      2018 Nov 08.083     300         R              18.50 ± 0.03 
      2018 Nov 08.088     300         I              18.21 ± 0.05 
      2018 Nov 08.092     300         V              18.83 ± 0.04 
      2018 Nov 08.096     300         B              18.89 ± 0.03