Dear colleagues,
I have just finished analysing my unfiltered CCD observations of ASASSN-23bx, obtained on 2023, Mar 27/28 at CBA Extremadura Observatory (Spain) using a 0.40-m f/5.1 telescope and SX-46 CCD camera under clear skies.
The resulting light curve clearly shows the presence of regular superhumps with a large amplitude of 0.58 mag, establishing ASASSN-23bx as a new SU UMa-type dwarf nova. A period analysis, using the ANOVA, Lomb-Scargle, Generalized-Lomb-Scargle and Conditional Entropy methods (Peranso 3.0) yields a combined superhump period of 0.0589 +/- 0.0005d. The object was at mag CV = 16.5 on Mar 28th.
I will send my observations to AAVSO, CBA and VSNET for further analysis.
Best regards
Tonny
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Tonny Vanmunster
CBA Belgium Observatory
CBA Extremadura Observatory
http://www.cbabelgium.com http://www.cbabelgium.com
PERANSO: The Light Curve and Period Analysis Software