Vend51 = AT 2023oom: a slow nova in the Andromeda galaxy
I've just found a 20 magnitudes bright extragalactic nova candidate on my 10x120s stacked images made with Luminance filter using a 0.51m telescope Utah Desert Remote Observatory /UDRO/ at Great Basin Desert, Beryl Junction, Utah, USA (iTelescope,net network) on 2023 August 5 09:02UT. Co-ordinates: 00 46 52.59 +42 01 41.2 (J2000.0) This slow nova has been officially designated as AT 2023oom and PNV J00465260+4201428 respectively. The VSX record of AT 2003oom (= Vend51 ). Update on 26th September: recent spectrum made by Kenta Taguchi et. al. using the KOOLS-IFU attached to the 3.8-m Seimei telescope at Okayama Observatory, Kyoto University show that AT 2023oom (Vend51) is a slow nova. Discovery image with reference images subtracted: AT 2023oom was already visible on 12x60s stacked images made on the nights of 28/29 July, 30/31 July and 31 July/1 August using a 0.31m telescope with Luminance filter remotely at Nerpio, Spain (iTelescope,net network). However AT 2023oom was
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VálaszTörlésThe Nova KT Eri Is a Recurrent Nova With a Recurrence Time-Scale of 40-50 Years
https://arxiv.org/pdf/2210.10448.pdf