[vsnet-outburst 24039] Re: V3890 Sgr eruption

Wed Aug 28 06:52:32 JST 2019

 V3890 Sagittarii (NR+E)
https://www.aavso.org/vsx/index.php?view=detail.top&oid=31590

Congratulations, Alfredo!
This should be the third recorded eruption, which I had expected
for about 2018 March. Previous eruptions occurred on 1962 June 2
and 1990 April 27.

In recent months I observed V3890 Sgr on almost every night
(weather and moonlight permitting). Unfortunately tonight the
sky has been overcast here, and the two previous evenings it
was too cloudy or hazy low above my southern horizon.

Recent ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S
and Kochanek et al. 2017PASP..129j4502K) data and light curve:
https://asas-sn.osu.edu/light_curves/d0da704c-0426-4c88-9c43-b7a43085d9a0
SGRV3890 20190827.048 <160g ASN
Failed observations on Aug. 27.76 UT?

AAVSO data:
https://www.aavso.org/apps/webobs/results/?star=V3890 SGR

Confirmation, spectroscopy, and multiband photometry are
urgently required.

Clear skies,
Patrick     Am Dienstag, 27. August 2019, 23:12:45 MESZ hat Alfredo Pereira alfjspereira at gmail.com via vsnet-alert <vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp> Folgendes geschrieben:  

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V3890 Sgr outburst

This recurrent nova was found in outburst on 2019 Aug. 27.870 UT, mag 6.7
(Alfredo Pereira, Carnaxide, Portugal).

Alfredo Pereira, Carnaxide, Portugal
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