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Recent Optical Photometry of M31N 2008-12a of the 2015 Eruption

ATel #7974; Tao Chen, K. M.Lau (Corona Borealis Observatory), Zhijian Xu (Nanjing Putian Telecommunications Co,. Ltd.)
on 1 Sep 2015; 12:53 UT
Credential Certification: Martin Henze (henze@ice.cat)

Subjects: Optical, Nova, Transient

Referred to by ATel #: 7976, 7979, 7980, 7984, 8029, 8033, 8062

We report our recent observations of the recurrent nova M31N 2008-12a during its 2015 outburst (see ATels #7964,#7965,#7967,#7968,#7969). Observations were obtained using a Visual filter CCD + Mewlon 300 telescope D=300mm f/9.9, at Corona Borealis Observatory (MPC CODE N55) in Kunsha Town, Ngari, Tibet, China. We used 4 x 600s stacked images to ensure the SNR. The measurements are as follows (V magnitudes based on reference stars from the UCAC-4 catalogue; all times are UT):

2015 08 28.85059, 18.56 ± 0.18 V
2015 08 28.85429, 18.52 ± 0.17 V
2015 08 28.97123, 18.74 ± 0.14 V

2015 08 30.71866, 19.57 ± 0.17 V
2015 08 30.76014, 19.63 ± 0.16 V
2015 08 30.80057, 19.89 ± 0.20 V