TITLE:   GCN CIRCULAR
NUMBER:  35245
SUBJECT: Optical transient in the field of Messier 31, likely a new blazar: back to bright state
DATE:    23/12/01 12:07:03 GMT
FROM:    Gianluca Masi at Virtual Telescope Project <gianluca@bellatrixobservatory.org>

We report that the new blazar candidate in the field of Messier 31 (NGC 224) reported by G. Masi in GCN 34819 is again on bright state, found at R=17.9 on 29.72 Nov. 2023.

The optical source, which discovery is described in the GCN circular mentioned above,  has been brighter than R=19.0 since at least 10 Aug. 2023, showing an almost 1.5 mag. large amplitude in its light curve.

Extensive, R-band photometry since 10 Aug. 2023 is available at the following web address:
https://www.virtualtelescope.eu/2023/08/16/discovery-of-variability-of-the-optical-counterpart-of-the-nvss-j004354404634-radio-source-in-the-messier-31-field/

Multi-wavelength observations are strongly encouraged. 

Gianluca Masi
Virtual Telescope Project