Recurrent Nova M31N 2008-12a: Multi-color optical photometric observations of the 2018 eruption with SARA-KPNO and SARA-ORM
ATel #12205; A. Kaur (PSU), M. Rajagopal, D. H. Hartmann (Clemson University) , X. Han (Butler University), W. Keel (Univ of Alabama), T. Otani (ERAU), T. Hillwig (Vaparaiso), K. Williams (TAMUC), M. Henze, A. Shafter (SDSU), M. J. Darnley (LJMU) (on behalf of a larger collaboration)
on 12 Nov 2018; 19:20 UT
Distributed as an Instant Email Notice Novae
Credential Certification: Amanpreet Kaur (auk971@psu.edu)
We report optical photometric observations of the 2018 eruption (see ATels #12177, #12181, #12182, #12189, #12190, #12195, #12200, #12203, #12204) of the recurrent nova M31N 2008-12a (Henze et al. 2014, 2015a, 2015b,2018; Darnley et al. 2014, 2015, 2016). The data were obtained between 2018 Nov 06.0 UT - Nov 09.5 UT with the 0.96 m and 1.0 m SARA telescopes equipped with ARC CCD camera and Andor camera (Keel et al. 2017, located at the Kitt Peak National Observatory (SARA-KPNO), Arizona and Roque de los Muchachos, La Palma, Spain (SARA-ORM), respectively. The exposure times varied between 5 to 30 minutes. The derived magnitudes were calibrated with the standard stars in the field of this nova.
Optical Observations
| 2018 UT |
Mag (ORM) |
Filter (ORM) |
2018 UT |
Mag (KPNO) |
Filter (KPNO) |
| Nov06.96 | 19.02±0.02 | g' | Nov07.08 | 18.83±0.01 | B |
| Nov07.95 | 18.66±0.01 | g' | Nov07.16 | 18.86±0.01 | B |
| Nov08.00 | 18.76±0.01 | g' | Nov07.26 | 19.31±0.02 | B |
| Nov08.06 | 18.95±0.01 | g' | Nov08.06 | 19.17±0.05 | B |
| Nov08.99 | 19.56±0.02 | g' | Nov08.23 | 19.10±0.03 | B |
| Nov06.96 | 19.38±0.07 | i' | Nov07.10 | 18.75±0.04 | I |
| Nov07.92 | 18.77±0.01 | i' | Nov07.17 | 18.65±0.03 | I |
| Nov08.00 | 19.28±00.5 | i' | Nov07.27 | 19.06±0.06 | I |
| Nov08.01 | 18.59±0.01 | i' | Nov08.08 | 18.61±0.04 | I |
| Nov08.07 | 18.84±0.01 | i' | Nov08.19 | 18.62±0.04 | I |
| Nov08.97 | 19.31±0.05 | i' | Nov07.11 | 18.53±0.02 | R |
| Nov06.96 | 19.03±0.03 | r' | Nov07.15 | 18.62±0.01 | R |
| Nov07.91 | 18.66±0.02 | r' | Nov07.27 | 18.85±0.02 | R |
| Nov07.99 | 18.74±0.02 | r' | Nov08.07 | 18.68±0.03 | R |
| Nov08.06 | 18.93±0.02 | r' | Nov08.23 | 18.69±0.02 | R |
| Nov08.97 | 19.44±0.03 | r' | Nov09.20 | 19.50±0.07 | R |
| ... | | Nov07.09 | 18.79±0.01 | V |
| ... | | Nov07.16 | 18.94±0.01 | V |
| ... | | Nov07.26 | 19.11±0.02 | V |
| ... | | Nov08.06 | 18.92±0.03 | V |
| ... | | Nov08.23 | 19.09±0.03 | V |
| ... | | Nov09.19 | 19.47±0.04 | V |
|
