[vsnet-alert 25634] Re: CRTS J091245.9-034916 : new SU UMa-type dwarf nova
marc.deldem at free.fr
Fri Apr 2 21:07:35 JST 2021
On the night of 2021 April 01/02, superhumps are visibled on CRTS
J091245.9-034916 with an amplitude of 0.17 magnitude and superhumps
period is 0.0676 days. The object was at mag 15.45 CV.
Data have been sent to the AAVSO database.
Le 02/04/2021 à 00:07, tonny.vanmunster at gmail.com via vsnet-alert a écrit :
> Dear colleagues,
> I have just finished analysing my unfiltered CCD observations of CRTS
> J091245.9-034916, obtained on 2021, Mar 31/Apr 01 at CBA Belgium
> Observatory, using a 0.40-m f/10.0 telescope and QHY268M CMOS camera under
> clear skies.
> Regular superhumps with an amplitude of 0.33 mag are clearly visible in the
> resulting light curve, establishing CRTS J091245.9-034916 as a new SU
> UMa-type dwarf nova. A period analysis using the ANOVA, Lomb-Scargle,
> Generalized-Lomb-Scargle and PDM methods (Peranso 3.0), yields a combined
> superhump period of 0.0677 +/- 0.0007d. The object was at mag V = 15.1 on
> Mar 31st.
> I will send my observations to AAVSO, CBA and VSNET for further analysis.
> Best regards
> Tonny Vanmunster
> CBA Belgium Observatory
> CBA Extremadura Observatory
> PERANSO : The Light Curve and Period Analysis Software
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