[vsnet-alert 24443] Re: PNV J17580848-3005376: possible nova (10 mag) in Sagittarius

[Berto Monard astroberto13m@gmail.com via vsnet-alert]

Observations at CBA KKO on two nights show that this nova is considerably
reddened.

Date / CCD-B / CCD-Vj / CCD-Rc / CCD-Ic

UT 2020 Jul 17.08  11.5  10.25   8.85  7.50
UT 2020 Jul 17.78  11.7  10.54   9.03  7.83
UT 2020 Jul 17.84  11.68 10.53  9.05  7.88
UT 2020 Jul 17.90  11.66 10.45  8.97  7.77

Timeseries photometry in V over a period of 1.03h showed no short term
variability.

Berto Monard / Kleinkaroo Observatory
Calitzdorp, South Africa





On Thu, Jul 16, 2020 at 11:37 PM Patrick Schmeer pasc1312-aavso at yahoo.de
via vsnet-alert <vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp> wrote:

> Possible nova at 17 58 08.48 -30 05 37.6 (J2000.0), for details see
> http://www.cbat.eps.harvard.edu/unconf/followups/J17580848-3005376.html
>
> Complete ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S
> and Kochanek et al. 2017PASP..129j4502K) light curve and data
> (the brightening on 2019 April 2.262 UT is very likely not real):
> https://asas-sn.osu.edu/light_curves/4c0bd99e-3edd-4bdb-996f-be39ec5755b8
>
> The (likely) eruption began between 2020 July 10 and 15.
>
> Spectroscopy, multiband photometry, and precise astrometry
> are urgently required.
>
> Clear skies,
> Patrick
>
>