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[vsnet-chat 4450] Re: re R Hya
- Date: Tue, 15 May 2001 12:48:16 +0000
- To: "John Isles" <jisles@voyager.net>, <vsnet-chat@kusastro.kyoto-u.ac.jp>
- From: crawl@zoom.co.uk
- Subject: [vsnet-chat 4450] Re: re R Hya
- In-Reply-To: <006601c0dc8c$d32f52c0$b72c5dd8@jisles>
- References: <3.0.6.32.20010510225914.00798100@pop3.zoom.co.uk><002301c0da60$ffc52680$8c116ecb@star>
- Sender: owner-vsnet-chat@kusastro.kyoto-u.ac.jp
At 11:44 14/05/01 -0400, John Isles wrote:
>For what it's worth, I wrote a piece about R Hya in Sky & Telescope, May
>1996, pp. 68-70. Using AAVSO dates of maxima in conjunction with earlier
>elements as reported in the GCVS, I concluded that to a first approximation
>the period was decreasing steadily until about 1910. Since 1937 the period
>was contant at 389 days.
I'll go along with that!
Still get people saying its declining in even up to date journal papers
though, mostly cos they just quote directly from the Wood and Zarro 1981
paper, so they don't even seem to think that that 20 years "interregnum"
ought to be checked.
Cheers
John
JG, UK
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