On April 1st Michael Mattiazzo reported a probable comet in SWAN data with a position in Pegasus. I performed a search around the rough position on the morning of April 2 but didn’t find anything. Subsequently Qicheng Zhang found the comet in images he had taken using a 40mm refractor on April 2.51. This allowed Bill Gray to compute an ephemeris and Mattazzio then found a precovery image from March 30.22.
For now, this comet doesn’t have an official designation but you can get an ephemeris from here:
https://www.projectpluto.com/swan.htm
I imaged it this morning from Chelmsford in bright twilight as it cleared the roof of my house. Image attached.
Michael Jaeger reports a total magnitude of 10.0.