[vsnet-alert 25434] DDE 163 = 1RXS J185013.9+242222 outburst
Denis Denisenko d.v.denisenko@gmail.com via vsnet-alert
vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp
Mon Feb 22 18:00:00 JST 2021
This dwarf nova in Hercules is in bright outburst according to ZTF Lasair
data (Masci et al, 2019):
DDE 163 = 1RXS J185013.9+242222
20210211.5305 19.46g ZTF
20210217.5432 15.87r ZTF
20210217.5463 15.94r ZTF
20210218.5326 16.21g ZTF
20210221.5332 14.56r ZTF
https://lasair.roe.ac.uk/object/ZTF18abikbmj/
Coordinates: 18 50 13.38 +24 22 20.0
A bright outburst was observed (but not detected as a transient) by ASAS-SN
in 2015 Feb. 17-20. Then there was another outburst in June 2019, see
[vsnet-alert 23303] and [vsnet-alert 23306] . Tonny Vanmunster has observed
the star for 3.5 hours on 2019 June 9/10. The light curve shows a hint of
0.06 d variations with an amplitude of 0.2m. Follow up observations are
encouraged.
Denis Denisenko
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