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Additional BVRI photometry of the recurrent nova M31N 1963-09c during the 2015 eruption

ATel #8243; A. Kaur (Clemson University), M. Henze (IEEC/CSIC), W. C. Keel (University of Alabama, Tuscaloosa), D. H. Hartmann (Clemson University)
on 3 Nov 2015; 22:21 UT
Credential Certification: Martin Henze (henze@ice.cat)

Subjects: Optical, Nova

Referred to by ATel #: 8290, 9386

We report additional optical multi-colour photometry of the ongoing 2015 eruption of the fast recurrent nova M31N 1963-09c (see ATels #8242, #8238, #8235, #8234, #8233 and CBAT TOCP). The observations were conducted with the 0.9-m SARA-North telescope at Kitt Peak National Observatory on Nov 2-3, 2015. The photometric data was obtained in Bessel filters (B, V, R and I). One exposure per BVRI filter was taken on November 2, while November 3 received a higher cadence coverage. The nova is found to decline significantly on short time scales in all colour bands.

 
    Date UT           MJD         Filter     Magnitude 
 
2015 Nov 02.2287   57328.2287       B      19.13 ± 0.02 
2015 Nov 02.2648   57328.2648       V      18.98 ± 0.03 
2015 Nov 02.2477   57328.2477       R      18.55 ± 0.02 
2015 Nov 02.2554   57328.2554       I      18.71 ± 0.06 
 
2015 Nov 03.1644   57329.1644       B      19.18 ± 0.03 
2015 Nov 03.2040   57329.2040       B      18.90 ± 0.02 
2015 Nov 03.2400   57329.2400       B      19.63 ± 0.04 
2015 Nov 03.2779   57329.2779       B      19.84 ± 0.05 
 
2015 Nov 03.1571   57329.1571       V      19.16 ± 0.04 
2015 Nov 03.1869   57329.1869       V      19.24 ± 0.04 
2015 Nov 03.2128   57329.2128       V      19.39 ± 0.05 
2015 Nov 03.2488   57329.2488       V      19.78 ± 0.07 
 
2015 Nov 03.1395   57329.1395       R      18.80 ± 0.05 
2015 Nov 03.1936   57329.1936       R      18.79 ± 0.05 
2015 Nov 03.2195   57329.2195       R      18.92 ± 0.05 
2015 Nov 03.2555   57329.2555       R      19.37 ± 0.08 
 
2015 Nov 03.1488   57329.1488       I      18.9  ± 0.1 
2015 Nov 03.1975   57329.1975       I      19.2  ± 0.1 
2015 Nov 03.2234   57329.2234       I      19.5  ± 0.2 
2015 Nov 03.2594   57329.2594       I      19.4  ± 0.1