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[vsnet-chat 3033] Re: EsB 365 observations and comments
- Date: Wed, 7 Jun 2000 10:30:06 -0700
- To: "Sebastián Otero" <varsao@fullzero.com.ar>, "Fraser Farrell" <fraserf@dove.net.au>
- From: "William S G Walker" <astroman@voyager.co.nz>
- Subject: [vsnet-chat 3033] Re: EsB 365 observations and comments
- Cc: <vsnet-chat@kusastro.kyoto-u.ac.jp>
- Reply-To: <astroman@voyager.co.nz>
- Sender: owner-vsnet-chat@kusastro.kyoto-u.ac.jp
Hi Sebastian and Fraser,
I've been reading the comments on R CrBs over the past few weeks. We used
to make UBV measures of these from Auckland, both to check the colours
during the fades and the short term periodicities. The latter are
interesting - stars such as RY Sagittarii have a fairly periodic modulation
similar to the longer period Cepheids such as l Carinae. Others, such as UW
Centauri have a much less regular period, very reminiscent of RV Tauri
stars. I gather the latter can appear to have triple maxima at times - and
UW Cen seems to mix double and treble maxima, at least when we were
measuring in the 70s and 80s.
Regards,
Stan
----------
> From: Sebastián Otero <varsao@fullzero.com.ar>
> To: Fraser Farrell <fraserf@dove.net.au>
> Cc: vsnet-chat@kusastro.kyoto-u.ac.jp
> Subject: [vsnet-chat 3030] RE: EsB 365 observations and comments
> Date: Monday, June 05, 2000 12:24 PM
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