MASTER: PSN in bright PGC630422 and OTs

ATel #10715; P. Balanutsa, V. Shumkov, V. Lipunov (Lomonosov MSU), R. Podesta, F. Podesta, C. Lopez (OAFA), H. Levato, C. Saffe (ICATE), R. Rebolo, M. Serra-Ricart (IAC), A. Tlatov, V. Senik(KSS RAS), E. Gorbovskoy, N. Tiurina, V. Kornilov, O. Gress, A. Kuznetsov, V. Chazov, V. Vladimirov, D. Vlasenko, D. Zimnukhov, I. Gorbunov, T. Pogrosheva, A. Krylov(Lomonosov Moscow State University), A. Gabovich (BSPU)
on 6 Sep 2017; 17:15 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

Tweet

MASTER OT J233054.7-365727.8 - PSN in bright PGC630422

MASTER-OAFA (Argentina) auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L ) discovered OT source at (RA, Dec) = 23h 30m 54.7s -36d 57m 27.8s on 2017-08-31 07:40:58.398UT.
This OT is seen on 2 survey images, unfiltered m_OT=17.8 (mlim=19.9). There is no minor planet at this place.
This PSN is in 2.6"W, 5.3"S of bright disc galaxy PGC630422 with Btc=15.9(LEDA)
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/MASTEROTJ233054.7-365727.8.jpg

MASTER OT J072024.11+274152.5 discovery - >7.1mag outburst amplitude

MASTER-Kislovodsk auto-detection system discovered OT source at (RA, Dec) = 07h 20m 24.11s +27d 41m 52.5s on 2017-09-06.04009 UT.
The OT unfiltered magnitude is
14.6m (limit 17.6m). The OT is seen in 2 images. There is no minor planet at this place.
We have reference image without OT on 2010-12-06.96181 UT with unfiltered magnitude limit 21.7m.
There are 6 images in MASTER-Amur on 2017-09-05 19:13:15.106-19:28:22.159UT with unfiltered m_OT=14.4
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/072024.11274152.5.png
This OT was also independently detected by ASAS .

MASTER OT J072024.11+274152.5 discovery - OT with ampl>2m
MASTER-Kislovodsk auto-detection system discovered OT source at (RA, Dec) = 08h 59m 45.08s +75d 36m 27.8s on 2017-08-19.95887 UT.
The OT unfiltered magnitude is 17.8m (limit 19.0m).
The OT is seen in 2 images. There is no minor planet at this place.
We have reference images without OT on 2017-07-31 21:49:48UT with mlim=19.0, on 2017-08-01 00:43:57 with mlim=18.0, on 2012-10-20.86747 UT with unfiltered magnitude limit 19.9m.
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/085945.08753627.8.png

MASTER Global Robotic Net