vsnet-campaign-dn September 2024

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[vsnet-campaign-dn 17486] ASASSN-24fq: new SU UMa-type dwarf nova
by tonny.vanmunster＠gmail.com 03 Sep '24

03 Sep '24

Dear colleagues, I have just finished analysing my unfiltered CCD observations of ASASSN-24fq, obtained on 2024, Aug 30/Sep 01 and Sep 01/02 at CBA Extremadura Observatory 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 an amplitude of 0.56 mag, establishing ASASSN-24fq as a new SU UMa-type dwarf nova. A period analysis, using the ANOVA, Lomb-Scargle, Generalized-Lomb-Scargle, PDM and Phase-binned AoV methods (Peranso 3.0) yields a combined superhump period of 0.0590 +/- 0.0002d. The object was at mag CV = 15.8 on Aug 13th. Image calibration and photometry were done using my new photometry software Phoranso 1.0.4.8, which allowed me to simultaenously measure several other variables present in the FOV of this new SU UMa-type dwarf nova. I will send my observations to AAVSO, CBA and VSNET for further analysis. Best regards Tonny --- Tonny Vanmunster CBA Belgium Observatory CBA Extremadura Observatory http://www.cbabelgium.co <http://www.cbabelgium.com/> m PERANSO : The Light Curve and Period Analysis Software http://www.peranso.co <http://www.peranso.com/> m PHORANSO: Photometric Reduction and Analysis Software *** NEW *** http://www.phoranso.com <http://www.phoranso.com/>

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