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Bright OT discovered by MASTER

ATel #6257; S. Shurpakov, D. Denisenko, V. Lipunov, E. Gorbovskoy, N. Tiurina, P. Balanutsa, V. Kornilov, N. Shatskiy, V. Chazov, A. Kuznetsov, V. Vladimirov, V. Yecheistov (Moscow State University, SAI), A. Parkhomenko, A. Tlatov, D. Dormidontov, V. Senik (Kislovodsk Solar Station of Pulkovo Observatory), K. Ivanov, S. Yazev, N. Budnev, E. Konstantinov, O. Chuvalaev, V. Poleshchuk, O. Gress (Irkutsk State University), V. Yurkov, Y. Sergienko, D. Varda, E. Sinyakov, A. Gabovich (Blagoveshchensk Educational University), V. Krushinsky, I. Zalozhnih, A. Popov, A. Bourdanov (Ural Federal University), P. Podvorotny, V. Shumkov, (MASTER team members), H. Levato, C. Saffe (ICATE), C. Mallamaci, C. Lopez, F. Podest (OAFA)
on 23 Jun 2014; 11:10 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

Subjects: Optical, Cataclysmic Variable, Transient, Variables

MASTER OT J201121.95+565531.1 - new CV?

MASTER-Amur auto-detection system discovered OT source at (RA, Dec) = 20h 11m 21.95s +56d 55m 31.1s on 2014-06-22.57981 UT. The OT unfiltered magnitude is 16.5m (limit 18.6m). The OT is seen in 5 images. There is no minor planet at this place.

We have reference image without OT on 2011-09-01.64319 UT with magnitude limit in unfiltered 19.4m.

There is one object in AllWISE Data Release (Cutri+ 2013) with high proper motion with 1.8 arcsec offset.

Follow up observations are required.

The discovery and reference images are available at:http://master.sai.msu.ru/static/OT/201121.95565531.1.png

List of Optical Transients discovered by MASTER

Global MASTER Net