[vsnet-alert 21874] ASASSN-18cs: likely dwarf nova outburst in Scorpius (ATel #11300)

Thu Feb 15 04:34:34 JST 2018

ASASSN-18cs  (UG:)

K. Z. Stanek, C. S. Kochanek, J. V. Shields, T. A. Thompson (OSU),
T. W.-S. Holoien, B. J. Shappee (Carnegie Observatories),
J. L. Prieto (Diego Portales; MAS), Subo Dong (KIAA-PKU):
"ASAS-SN Discovery of a Possible Galactic Nova ASASSN-18cs"
RA 17:34:08.84, DEC -43:05:50.5; 2018 Feb. 13.37 UT, V= 13.7 mag
http://www.astronomerstelegram.org/?read=11300

ASASSN-18cs 20171017.03 <174V ASN
ASASSN-18cs 20180213.37  137V ASN
ASASSN-18cs 20180214.38  137g ASN

A Gaia DR1 source (17:34:08.90 -43:05:50.5, G= 18.68 mag)
is 0.7" from the transient's reported position.

ASAS-3 recorded a few outbursts at this position
(ASAS 173408-4305.8), two of them reaching V= 13 mag.

Time-resolved photometry and spectroscopy are urgently required.

Clear skies,
Patrick