MASTER OT J051529.15+560532.0 in outburst

American Association of Variable Star Observers (AAVSO)
Tue, 07/12/2022 - 10:55

The BOOTES-1A wide field image telescope at the BOOTES-1 station in Mazagon (INTA-CEDEA, Huelva, Spain) telescope automatically detected a rise in the flux of the MASTER OT J051529.15+560532.0 cataclismic binary at 03:37:33 UT on 2022-07-12. Its optical flux increased to 13.87 mag. without filter using Gmag from GAIADR2 on photometry calibration. Following this alert, a set of 20 images were obtained with the BOOTES-1B 0.3m robotic telescope located nearby, showing a variability of 0.3 magnitudes without any significant slope.

MASTER OT J051529.15+560532.0
RA, Dec = 05:15:28.9, +56:05:32.9 (78.8706, 56.0924)