AF And (J004333.09+411210.4)

Find In Simbad Query LGGS Massey (2016) at VizieR

ATEL 10502 (2017 June 17 UT)

In ATEL 10383 we reported the classical Luminous Blue Variable (Humphreys & Davidson, 1994) AF And = J004333.08+411210.3 = Var 19 in M31 (Hubble & Sandage, 1953) has brightened and grown redder over the last 800 days, indicating the start of a possible S Dor outburst.  A low-res spectrum (R~350) taken by S. Williams and M. Darnely on 2017 May 20.23 UT with SPRAT on the Liverpool Telescope shows the He I emission present in 2010, 2013, and 2015 has disappeared and the O I 777nm triplet is possibly in absorption.  These indicate a change in spectrum to a lower temperature, consistent with an S Doradus eruption.