Recurrent Nova M31N 2008-12a: optical photometric follow up
ATel #9857; P. Erdman (ERAU), A. Kaur (Clemson University), T. Oswalt (ERAU), D. Burke (ERAU), D. H. Hartmann (Clemson University), M. Henze (CSIC-IEEC), M. J. Darnley (LJMU), A. W. Shafter (SDSU), J. Horst (SDSU) (on behalf of a larger collaboration)
on 14 Dec 2016; 06:34 UT
Credential Certification: Allen W. Shafter (ashafter@mail.sdsu.edu)
Subjects: Optical, Nova, Transient
Referred to by ATel #: 9861, 9865, 9872, 9874, 9881, 9883, 9885, 9891, 9906, 9907, 15802
We report optical photometric observations of the 2016 outburst of M31N 2008-12a, which was recently discovered with the 50 cm telescope at the Itagaki Astronomical Observatory (see ATel #9848). Our observations were obtained between 2016 Dec 13.10 UT and Dec 14.03 UT with the 24-in CDK Cassegrain telescope, equipped with the SBIG STX 16803 detector and Omega SDSS r' filter, located at the Embry Riddle Aeronautical University, Florida.
The derived magnitudes in r' band were calibrated with 14 stars in the field of the nova. In total, we obtained a set of 15 images, each with a 600 s exposure time. For each exposure, the r' magnitude of M31N 2008-12a is listed in the table below.
Optical Observations
| UT |
r' mag |
| 13.103 |
18.02 ± 0.03 |
| 13.110 |
18.00 ± 0.04 |
| 13.117 |
18.00 ± 0.04 |
| 13.125 |
18.08 ± 0.05 |
| 13.132 |
18.11 ± 0.05 |
| 13.139 |
17.98 ± 0.04 |
| 13.146 |
18.13 ± 0.05 |
| 13.154 |
18.03 ± 0.05 |
| 13.161 |
18.12 ± 0.05 |
| 13.201 |
18.39 ± 0.07 |
| 13.208 |
18.37 ± 0.07 |
| 13.216 |
18.19 ± 0.06 |
| 13.223 |
18.31 ± 0.07 |
| 13.230 |
18.37 ± 0.07 |
| 14.030 |
18.85 ± 0.04 |
