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The ASAS-SN team report a possible supernova ASASSN-20jq/ AT2020qxp in NGC 5002 (12Mpc)
https://wis-tns.weizmann.ac.il/object/2020qxp
It is currently mag 16.8 and yet to be classified but a type Ia would be expected to reach ~mag 11 excluding extinction at this distance so one to watch!
Robin
About 3deg from Cor Caroli in CVn, for those who don’t speak NGC or can’t be bothered to look it up 😉
I imaged the galaxy through thin cloud – on Aug 9th at 2100UT. Despite the poor transparency the stacked subs indicate the transient at about 16.5 mag. (C11 at f5.5, QHY174m)
Tim
A bit closer still, same part of the sky (unfortunately). Confirmed as a 1a. Rising rapidly, heading for ~mag 11 ?
https://wis-tns.weizmann.ac.il/object/2020rcq
Robin
SN 2020qxp is now also confirmed as a Ia and the classifiers suggest it should be near maximum light in which case it should in theory be approaching ~mag 11 excluding extinction in the parent galaxy. They also compare it though with SN 2007on which was classed as “transitional” (ie with a luminosity lower than normal for a 1a but more luminous than sub luminous 91bg-types). SN 2007on was considered a good candidate for a white dwarf merger supernova event eg
https://arxiv.org/abs/1802.09469
The light curve of SN 2020qxp could be interesting
Cheers
Robin
Estimates from Stan Howerton last night give SN 2020rcq 12.5 V so still rising but SN 2020qxp at 14.5 so probably sub-luminous near maximum as suggested by the TNS classifiers
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