[vsnet-alert 22194] ASASSN-18lb: likely dwarf nova outburst (15.4 mag) in Lyra

[Patrick Schmeer pasc1312-aavso@yahoo.de via vsnet-alert]

ASASSN-18lb  (UG:)
https://www.aavso.org/vsx/index.php?view=detail.top&oid=621315

18:53:57.33 +29:58:16.3  2018-05-23.41 15.34
this is most likely a CV, present in more than one epoch;
..., matches to g=18.9 Gaia DR2 source, V>17.2 on 2018-05-21.42,
V=15.4 on 2018-05-23.40, g=15.7 on 2018-05-23.41.
(still near maximum brightness on 2018-05-28.559)

ASASSN-18lb 20180521.414 <172V ASN
ASASSN-18lb 20180523.404  154V ASN
ASASSN-18lb 20180523.411  157g ASN

Time-resolved photometry and precise astrometry are urgently required.

Clear skies,
Patrick