Pre-discovery observations of the MASTER OT J010603.18-744715.8 Classical Nova in the SMC
ATel #9684; Francisco Jablonski (INPE/MCTIC), Aysses Oliveira (INPE/MCTIC)
on 28 Oct 2016; 13:53 UT
Credential Certification: Francisco Jablonski (fjjablonski@gmail.com)
We have observed the onset of the eruption of Small Magellanic
Cloud Nova MASTER OT J010603.18-744715.8
(ATel #9621),
with a robotic DSLR camera from Sao Jose dos Campos, Brazil.
The results of aperture photometry on unfiltered optical images
are reported below. Measurements with upper limits have 100 sec effective
integration time. The following images have 50 sec integration time.
Listed magnitudes are referred to HIP 4415 (V = 8.85 +- 0.01).
At the level of V ~ 12.9, the eruption can be traced back to 2016 Oct 9, 5.30 +- 0.1 UT.
We have a few additional measurements on October 16 and 17, including one taken
with the 1.6-m telescope at OPD/LNA, in Brazil.
Datetime JD mag
(UT) (unfiltered)
2016-10-09 2457670.65024 <13.7
2016-10-09 2457670.66587 <13.5
2016-10-09 2457670.68149 <13.7
2016-10-09 2457670.69747 <13.2
2016-10-09 2457670.70961 12.90 +- 0.60
2016-10-09 2457670.71656 11.62 +- 0.18
2016-10-09 2457670.72489 11.62 +- 0.18
2016-10-09 2457670.73218 10.94 +- 0.10
2016-10-09 2457670.74086 11.08 +- 0.13
2016-10-09 2457670.74781 11.14 +- 0.13
2016-10-09 2457670.75684 10.51 +- 0.08
2016-10-09 2457670.76378 10.78 +- 0.10
2016-10-09 2457670.77211 10.37 +- 0.07
2016-10-09 2457670.77906 10.27 +- 0.07
2016-10-09 2457670.78809 10.44 +- 0.08
2016-10-09 2457670.79503 10.23 +- 0.07
2016-10-09 2457670.80371 10.18 +- 0.07
2016-10-09 2457670.81100 10.38 +- 0.08
2016-10-09 2457670.81899 10.04 +- 0.07
2016-10-09 2457670.82489 9.90 +- 0.07
2016-10-16 2457677.69861 10.48 +- 0.08
2016-10-16 2457677.71423 10.25 +- 0.07
2016-10-17 2457678.79934 11.47 +- 0.01
