MASTER-OAFA: PSN in PGC429000

ATel #10291; P. Balanutsa, V. Lipunov (Lomonosov MSU), R. Podesta (OAFA), H. Levato (ICATE), E. Gorbovskoy, N. Tiurina, A. Kuznetsov, V. Kornilov, T. Pogrosheva, V. Chazov, D. Vlasenko, V. Vladimirov, O. Gress, V. Shumkov, I. Gorbunov, A. Krylov (Lomonosov Moscow State University, SAI), C. Lopez, F. Podesta (Observatorio Astronomico Felix Aguilar San Juan University), C. Saffe (Instituto de Ciencias Astronomicas, de la Tierra y del Espacio), A. Gabovich(BSPU)
on 20 Apr 2017; 14:43 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

Subjects: Optical, Request for Observations, Supernovae, Transient

MASTER OT J122100.9-533150.1 - PSN in 2.4"E,1.2"S of PGC429000
MASTER-OAFA auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L ) discovered OT source at (RA, Dec) = 12 21 00.9 -53 31 50.1 on 2017-04-20 02:12:09.126UT.
The OT unfiltered magnitude is m=17.1 (mlim=19.1m).
The OT is seen in 3 images. There is no minor planet at this place.
We have reference images without OT on 2017-03-17 05:32:16UT with unfiltered mlim=18.9, on 2016-04-24 18:11:37UT with mlim=20.0.

This PSN is in 2.4"E,1.2"S of Sc PGC429000 galaxy (Btc=14.3, V is unknown)
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/MASTEROTJ122100.9-533150.1.jpg

List of Optical Transients discovered by MASTER

MASTER Global Robotic Net