Reply To: Supernova in M101 ! › Forums › Variable Stars › Supernova in M101 ! › Reply To: Supernova in M101 ! 1 June 2023 at 9:49 am #617599 Mr Ian David SharpParticipant Here’s my latest graph including last night’s results (31st May). I make B-V = +0.24. Ian. Attachments:SN2023ixf_31st_May_ids.jpg