[vsnet-alert 24550] ASASSN-20kb: Galactic nova?

[Taichi Kato]

ASASSN-20kb: Galactic nova?

ASASSN-20kb 	--- 	------- 	17:30:40.18 	-27:48:47.4 	2020-08-14.12 	15.15 	SDSS 	DSS 	VIZIER 	------- 	CV candidate, matches to PS1 g=18.5, g>14.8 on 2020-08-05.22, g=16.9 on 2020-08-09.19, g=15.7 on 2020-08-14.13.

ASASSN-20kb 20200805.22 <148g ASN
ASASSN-20kb 20200809.19 169g ASN
ASASSN-20kb 20200814.13 157g ASN

Gaia detection (13.37 mag):

http://gsaweb.ast.cam.ac.uk/alerts/alert/Gaia20dtv/
Gaia20dtv	AT2020rjf	2020-08-13 09:04:55	262.66690	-27.81316	13.37	16.30	0.03	unknown	2020-08-15 15:30:18	almost 3 mag outburst in red Gaia source in the Galactic plane

IDs:
2MASS 173040.049 -274847.57 (2000.0) 12.741 11.774 11.422 
173040.054 -274847.40 (2000.0) Gaia_DR2_4061221023920788096 plx=0.234(0.075) dismod=13.2 pmra=-3.754(0.167) pmdec=-2.346(0.135) G=16.283 BP=17.575 RP=14.915

   Currently at M_(Gaia) = 0.  A Galatic nova is suspected.