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Recurrent Nova M31N 2008-12a: Optical observations of the 2017 eruption

ATel #11144; P. Erdman (ERAU), A. Kaur, D. H. Hartmann (Clemson University), M. Henze, A. Shafter (SDSU), M. J. Darnley (LJMU) (on behalf of a larger collaboration)
on 9 Jan 2018; 18:03 UT
Distributed as an Instant Email Notice Novae
Credential Certification: Amanpreet Kaur (akaur@g.clemson.edu)

Subjects: Optical, Nova

Referred to by ATel #: 11149, 11214

We report optical photometric observations of the 2016 eruption (see ATels #11116, #11117, #11118, #11121, #11125, #11126, #11133 and #11134) of the recurrent nova M31N 2008-12a (Henze et al. 2014, 2015a, 2015b; Darnley et al. 2014, 2015, 2016). The data were obtained between 2017 Dec 31 UT - 2018 Jan 06 UT with the 24 inch CDK Cassegrain telescope equipped with a SBIG STX 16803 detector with a broadband luminance filter (400-700 nm) located at the Embry Riddle Aeronautical University, Florida. The derived magnitudes were calibrated with the standard stars in the field of this nova. The total exposure time for each reported magnitude varied between 5 minutes to 1 hour.

Optical Observations
UT mag
Dec 31.986 18.48± 0.03
Dec 31.993 18.47± 0.03
Jan 01.012 18.38± 0.03
Jan 01.019 18.24± 0.03
Jan 01.026 18.46± 0.04
Jan 01.039 18.32± 0.03
Jan 01.046 18.49± 0.04
Jan 01.054 18.54± 0.04
Jan 01.061 18.48± 0.05
Jan 05.052 20.98± 0.10