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Recurrent Nova M31N 2008-12a: Early multi-color photometric observations of the 2017 eruption with SARA-ORM

ATel #11125; Amanpreet Kaur, Dieter H. Hartmann (Clemson University), Martin Henze, Allen Shafter (SDSU), Matt Darnley (LJMU)
on 4 Jan 2018; 17:20 UT
Distributed as an Instant Email Notice Novae
Credential Certification: Amanpreet Kaur (akaur@g.clemson.edu)

Subjects: Optical, Cataclysmic Variable, Nova

Referred to by ATel #: 11130, 11133, 11134, 11144, 11149, 11214

We report optical photometric observations of the 2017 eruption (see ATels #11116, #11117, #11118, #11121) of the recurrent nova M31N 2008-12a (Henze et al. 2014, 2015a, 2015b; Darnley et al. 2014, 2015, 2016). The data were obtained using the BESSEL B, V, R, I filters between 2018 Jan 01.01 UT - 2018 Jan 02.00 UT with the 1.0 m Jacobus Kapteyn Telescope telescope (SARA-ORM) equipped with ARC CCD camera(Keel et al. 2017), located at Roque de los Muchachos, La Palma, Spain. The derived magnitudes were calibrated with the standard stars in the field of this nova. The total exposure time for each reported magnitude was 5 minutes.

Optical Observations
2018 UT Mag Filter

Optical Observations
UT Mag Filter
Jan 01.839 19.34± 0.12 B
Jan 01.852 19.34± 0.12 B
Jan 01.859 20.35± 0.29 B
Jan 01.871 18.81± 0.08 B
Jan 01.885 19.24± 0.10 B
Jan 01.900 19.48± 0.15 B
Jan 01.915 21.82± 1.32 B
Jan 01.922 18.61± 0.06 R
Jan 01.929 21.18± 0.74 B
Jan 01.836 19.12± 0.12 V
Jan 01.868 18.99± 0.09 V
Jan 01.882 19.01± 0.09 V
Jan 01.897 18.71± 0.07 V
Jan 01.911 18.74± 0.06 V
Jan 01.926 20.22± 0.28 V
Jan 01.940 19.28± 0.12 V
Jan 01.828 18.82± 0.10 R
Jan 01.832 20.97± 0.52 R
Jan 01.864 18.51± 0.05 R
Jan 01.878 18.61± 0.07 R
Jan 01.893 18.42± 0.05 R
Jan 01.908 18.51± 0.05 R
Jan 01.937 18.80± 0.07 R
Jan 01.933 19.12± 0.21 I
Jan 01.947 18.63± 0.13 I
Jan 01.843 19.07± 0.23 I
Jan 01.875 18.21± 0.10 I
Jan 01.889 19.23± 0.26 I
Jan 01.904 19.06± 0.22 I
Jan 01.919 18.22± 0.08 I