Аннотация:MASTER OT J170332.88+692612.1 discovery - 2mag in less then 2 days
MASTER-Kislovodsk auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L )
discovered OT source at (RA, Dec) = 17h 03m 32.88s +69d 26m 12.1s on 2019-03-08.98813 UT.
The OT unfiltered magnitude is 18.0m (limit 20.4m). The OT has the following photometry
Date, unfiltered_magnitude_W=0.2B+0.8R(Usno-B1)
2019-02-19 23:58:58 18.02
2019-02-20 00:02:24 17.53
2019-03-05 22:55:08 18.87
2019-03-06 00:02:23 no OT with mlim=20.3
2019-03-08 23:42:54 18.61
2019-03-09 00:46:36 18.04
We have reference image without OT on 2016-12-22.90878 UT with unfiltered magnitude limit 20.0m .
This Galex source is also a source from The_Million_Quasars (Milliquas) catalog (V5.2) (Flesch, 2017) Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/170332.88692612.1.png