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Bright possible luminous SN detected by MASTER

ATel #4805; S. Shurpakov, D. Denisenko, E. Gorbovskoy, V. Lipunov, P. Balanutsa, N. Tiurina, V. Kornilov, A. Belinski, N. Shatskiy, V. Chazov, A. Kuznetsov, D. Zimnukhov (Moscow State University, SAI), V. Krushinsky, I. Zalozhnih, A. Popov, A. Bourdanov, A. Punanova (Ural Federal University), K. Ivanov, S. Yazev, N. Budnev, E. Konstantinov, O. Chuvalaev, V. Poleshchuk, O. Gress, A. Frolova, (Irkutsk State University), A. Parkhomenko, A. Tlatov, D. Dormidontov, V. Senik (Kislovodsk solar station of the Pulkovo observatory RAS), V. Yurkov, Y. Sergienko, D. Varda, E. Sinyakov (Blagoveshchensk Educational University),V. Shumkov, V. Yecheistov, P. Podvorotny (MASTER team members), H. Levato, C. Saffe (ICATE), C. Mallamaci, C. Lopez and F. Podest (Observatorio Astronomico Felix Aguilar; OAFA)
on 12 Feb 2013; 14:48 UT
Credential Certification: Vladimir Lipunov (lipunov2007@gmail.com)

Subjects: Optical, Cataclysmic Variable, Supernovae, Transient

Referred to by ATel #: 4810

MASTER OT J133253.32+355733.3 - SN in SDSS J133253.27+355733.4

MASTER-Amur auto-detection system discovered OT source at (RA, Dec) = 13h 32m 53.32s +35d 57m 33.3s on 2013-02-11.69402 UT. The astrometry error Sigma is 0.3 arcsec. The OT unfiltered magnitude is 16.7m (limit 18.4m). The OT is seen in 3 images (in different tubes). There is no minor planet at this place. We have reference image without OT on 2013-01-10.88572 UT with unfiltered magnitude limit 18.6m.

There is faint (rmag=22) SDSS galaxy SDSS J133253.27+355733.4 at this place (offset is 0.6 arcsec)

The OT 5.5 mag brighter than galaxy. So it is possible that OT is the luminous SN candidate.

Spectral observations are required.

The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/133253.32355733.3.png

List of optical transients discovered by MASTER

Global MASTER Robotic Net