MASTER OT J172731.80+052750.3 - ew OT with ampl>8m
ATel #14754; K. Zhirkov, V. Lipunov, V. Kornilov, P. Balanutsa, I. Gorbunov, N. Tiurina, O. Gress, A. Kuznetsov, V. Vladimirov, E. Gorbovskoy, A. Chasovnikov, D. Vlasenko, D. Zimnukhov, V. Senik, V. Topolev, D. Kuvshinov, E. Minkina, V. Grinshpun, V. Shumkov, T. Pogrosheva (Lomonosov Moscow State University), D. Buckley (SAAO), R. Podesta, F. Podesta, C. Lopez, C. Francile (Observatorio Astronomico Felix Aguilar OAFA), R. Rebolo, M. Serra (The Instituto de Astrofisica de Canarias), N. Budnev (Irkutsk State University, API), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), A. Gabovich, V. Yurkov (Blagoveschensk Educational State University)
on 5 Jul 2021; 11:02 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)
Subjects: Optical, Cataclysmic Variable, Transient, Variables
MASTER OT J172731.80+052750.3 discovery - new OT (no any sources in VIZIER database) with ampl>8m
MASTER-IAC auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L )
discovered OT source at (RA, Dec) = 17h 27m 31.80s +05d 27m 50.3s on 2021-07-02 22:10:59 UT.
The OT unfiltered magnitude is 15.8m
(mlim=19.1).
The OT is seen in 9 images at 02,03,04 Jul 2021. There is no minor planet at this place.
We have reference image on 2016-04-13.19135 UT with unfiltered mlim= 19.7m; 2021-07-01 21:25:59Ut with mlim=18.8. There is also PanSTARRs images without any sources at this place, so 24m limit gives more then 8m of current amplitude value.
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/172731.80052750.3.png
MASTER Global Robotic Net
