Ron Arbour has asked me to post this message in his behalf:
The object AT2021 recently discovered in NGC 4631 has been classified as a Luminous Red Variable which is a sub group of Intermediate Luminosity Optical Transients. This group included Intermediate Luminosity Red Transients and intermediate Red Novae among others and bridged the gap between Novae and Supernovae. The first discovery and hence archetype of all these objects was discovered by an amateur and member of the Association, namely myself. A paper on the object was published in the Journal.