MASTER-IAC: pre-maximum bright PSN in PGC0906444

ATel #9593; E. Popova, V. Lipunov (Lomonosov MSU), R. Rebolo, M. Serra Ricart (IAC), E. Gorbovskoy, N. Tiurina, P. Balanutsa, A. Kuznetsov, V. Kornilov, V. Vladimirov (Lomonosov MSU), N. Budnev, O. Gress, K. Ivanov (API, ISU)
on 4 Oct 2016; 15:34 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

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MASTER OT J025606.21+274206.8 - bright young PSN in edge-on PGC090644
MASTER-IAC auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L ) discovered OT source at (RA, Dec) = 02h 56m 06.21s , +27d 42m 06s.8 on 2016-10-03 23:50:42UT with unfiltered m_PSN=16.8 .
There is PSN in MASTER-SAAO database on 2016-10-02 23:26:34.122 with unfiltered m_PSN=17.4
This PSN is in 30.2"W, 4.9"N from the center of PGC090644.
We have reference image without OT on 2016-08-04 05:07:08UT with unfiltered m_lim=20.2

The discovery and reference images are http://master.sai.msu.ru/static/OT/MASTEROTJ025606.21+274206.8.jpg

MASTER Global Robotic Net