Home › Forums › Variable Stars › Supernova in M101 ! › Reply To: Supernova in M101 !
21 May 2023 at 8:33 pm #617456
I have been encouraging imagers on “cloudy nights” and “stargazers lounge” to check the times on their M101 images (M101 is certainly a very popular target!) The earliest detection so far is 20230518 21:15 UT, 20 hours pre discovery and it is very clear in that image so probably detectable some time earlier.