[vsnet-alert 23483] MASTER OT J123616.92+562356.9

[Taichi Kato]

MASTER OT J123616.92+562356.9

ATEL #13031

Title:	MASTER OT J123616.92+562356.9 - 3.3mag amplitude of outburst
		in 48hours
Author:	O. Gress,  V. Lipunov, E. Gorbovskoy, V. Kornilov, N. Tyurina,
		P. Balanutsa, A. Kuznetsov, F. Balakin, V. Vladimirov, D. Vlasenko,
		A. Pozdnyakov, I. Gorbunov, D. Zimnukhov, T. Pogrosheva, V. Senik,
		V. Shumkov, D. Kuvshinov, A. Chasovnikov, V. Topolev (Lomonosov MSU),
		R. Podesta, C. Lopez, F. Podesta, C. Francile (OAFA), H. Levato (ICATE),
		D. Buckley (SAAO), R. Rebolo, M. Serra (IAC), O. Gress, N. Budnev,
		O. Ershova (ISU, API), A. Tlatov, D. Dormidontov (KSS of Pulkovo Observatory),
		V. Yurkov, A. Gabovich, Yu. Sergienko (BSPU)
Queries:	tiurina at sai.msu.ru
Posted:	15 Aug 2019; 17:37 UT
Subjects:Optical, Request for Observations, Cataclysmic Variable,
		Transient, Variables

MASTER OT J123616.92+562356.9 detection - 3.3mag amplitude of outburst
in 48hours 

MASTER-Kislovodsk auto-detection system ( <A HREF="http://www.hindawi.com/journals/aa/2010/349171/">Lipunov
et al., "MASTER Global Robotic Net", 
Advances in Astronomy, 2010, 30L</A> ) 

discovered OT source at (RA, Dec) = 12h 36m 16.92s +56d 23m 56.9s on 2019-08-14.75345
UT.

The OT unfiltered magnitude is 
10.8m
(limit 17.9m). 

This OT is seen in 78 images with m_OT~14.1 at 2010-03-27 18:18:07 / 
2019-08-12 19:40:40
UT, 

and 4 images with m_OT=10.8 on 
2019-08-14 18:04:58
/ 18:21:24UT 

Spectral observations are required. 

The discovery and reference images are available at: 

http://master.sai.msu.ru/static/OT/123616.92562356.9.png 

<center><a href="http://observ.pereplet.ru/MASTER_OT.html">List of Optical
Transients discovered by MASTER</a></center>

MASTER Global Robotic Net: http://observ.pereplet.ru

===

ASAS-SN data (no major brightening in the past):
https://asas-sn.osu.edu/light_curves/1b60b462-283b-4be8-933f-cb9b0d577125

   The object is faint in GALEX (unlikely a CV).
Spectral type K5.