Return to Home Page
Dear Seiichiro: V magnitude at maximum is recorded as 7.14-7.20 (some possible intrinsic variability) I also thought of a period of 171 days. Actually 171.45 d. I will send a lightcurve to the vsnet-image list. Note that with this period a secondary eclipse is well-placed at phase 0.47. Anyway more observations are needed. Cheers, Sebastian. ----- Original Message ----- From: "Seiichiro Kiyota" <skiyota@nias.affrc.go.jp> To: <vsnet-campaign-ecl@ooruri.kusastro.kyoto-u.ac.jp> Cc: <vsnet-ecl@kusastro.kyoto-u.ac.jp> Sent: Friday, January 25, 2002 1:11 AM Subject: [vsnet-ecl 510] Re: KV CMa > In message "[vsnet-campaign-ecl 43] Re: (fwd) Re: KV CMa", > Sebastian Otero wrote... > >From Hipparcos and my observations the eclipse lasts probably more than 1 > >day. Tonight I will be observing too. > > My recent observation of KV CMa are; > > CMAKV 20020122.540 7.25V Kis > CMAKV 20020122.540 7.39Ic Kis > CMAKV 20020122.540 7.03B Kis > CMAKV 20020123.493 7.23V Kis > CMAKV 20020123.493 7.39Ic Kis > CMAKV 20020123.493 7.00B Kis > CMAKV 20020124.494 7.24V Kis > CMAKV 20020124.494 7.43Ic Kis > CMAKV 20020124.494 7.02B Kis > > My last observations are 7.22V on Feb 15 and 16, 2001. > All observations match very well, thus I think that these are the magnitude at out of eclipse in my instruments. > From my and Mr. Otero's observations, I think that duration of eclipse is one day or less. > It is very short! We need day-to-day monitoring to catch next ellipse. > > Anyway, > > Minimum timings of KV CMa were reported as follows; > > 2448353.5 HIPPARCOS > 2451954.6 Otero > 2452296.6 Otero > > Difference of two minima observed by Mr. Otero is 342 day. > Difference between HIPPARCOS and Otero’s are 3601d and 3943d, respectively. > > 3601/342=10.5 > 3943/342=11.5 > > So, I estimate that period of KV CMa is 171d. > I do not examine possibility that true period is 171/n or not, yet. > --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://vsnet.grisoft.com). Version: 6.0.303 / Virus Database: 164 - Release Date: 24/11/01
Return to the Powerful Daisaku Nogami
vsnet-adm@kusastro.kyoto-u.ac.jp
