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MASTER: PSN in PGC829171

ATel #10448; V. Shumkov, V. Lipunov (Lomonosov MSU), D. Buckley (SAAO), E. Gorbovskoy, N. Tiurina, P. Balanutsa, A. Kuznetsov, V. Kornilov, O. Gress, T. Pogrosheva, V. Vladimirov, I. Gorbunov, D. Kuvshinov (Lomonosov Moscow State University, SAI), A. Gabovich (BSPU)
on 31 May 2017; 13:35 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

Subjects: Optical, Supernovae, Transient

MASTER OT J132547.22-212227.6 discovery - PSN in 0.7"E,13.8"S of PGC829171

MASTER-SAAO auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L ) discovered OT source at (RA, Dec) = 13h 25m 47.22s -21d 22m 27.6s on 2017-05-30.74118 UT.
The OT unfiltered magnitude is 17.6m (mlim=19.7).
The OT is seen in 2 images (2017-05-30 17:47:18,18:16:09UT). There is no minor planet at this place.
We have reference image on 2016-03-30.81512 UT with unfiltered mlim=21.0m. The nearest in time image without OT was on 2017-05-02 21:52:39UT with mlim=19.6.
This PSN is in 0.7"E,13.8"S of PGC829171 disc galaxy with Btc=17.47
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/132547.22-212227.6.png

List of Optical Transients discovered by MASTER

MASTER Global Robotic Net