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Pre-discovery observations of MASTER OT J004514.13+420007.2

ATel #8606; Hiroyuki Maehara (Okayama Astrophysical Observatory, NAOJ)
on 29 Jan 2016; 14:08 UT
Credential Certification: Hiroyuki Maehara (h.maehara@oao.nao.ac.jp)

Subjects: Optical, Nova, Transient

Referred to by ATel #: 8617

I report pre-discovery observations of the possible nova in M31 MASTER OT J004514.13+420007.2 (ATel # 8603). The observations were performed with the 1.05-m Schmidt telescope and KWFC (Sako et al. 2012, SPIE, 8446, 84466L) at Kiso Observatory. The following table presents the preliminary photometry (and upper limit) of the object.

Date(UT)        Magnitude      Filter  Remarks 
2016-01-25.396  <19.2          V       # upper limit 
2016-01-26.391  <19.9          V       # upper limit 
2016-01-28.412   17.84+/-0.05  V 
Astrometry of the object in the images obtained on January 28 yields the following position: R.A.=00:45:14.19, Decl.=+42:00:07.9 (equinox 2000.0; position uncertainty 0.14").