[vsnet-alert 13191] T Pyx sequence

[Sebastián Otero]

We have added a 77 comp star (HD 77018) to the T Pyx sequence to replace the 
78 comp star very close to the variable that was found to be variable and 
also not recommended to be used as a comp star in AAVSO Alert Notice 437 (it 
was the former comp star "84").
Update your charts.

Also the multicolor photometry for HD 77645 (69) was included in the 
photometry table.
The data come from
http://adsabs.harvard.edu/cgi-bin/bib_query?1986A&AS...65...33M
and the original Johnson's R and I values have been transformed to Cousins 
Rc and Ic according to the authors of that paper.

Cheers,
Sebastian.


----- Original Message ----- 
From: "Sebastián Otero" <varsao at hotmail.com>
To: "Enrique de Miguel" <edmiguel63 at gmail.com>
Cc: "AAVSO Photometry" <aavso-photometry at mira.aavso.org>; "vsnet-alert" 
<vsnet-alert at ooruri.kusastro.kyoto-u.ac.jp>
Sent: Saturday, April 16, 2011 5:16 PM
Subject: [vsnet-alert 13189] Re: Observations T Pyx 110414


>> Measurements at April 14, UT 20:14:38  (JD 666.343) show T Pyx at
>> 9.10B and 9.24V. I've got measurements in R and I bands,
>> but I find no photometry for nearby reference stars in these bands.
>> Any hint?
>
> Enrique,
> UBVRI data for HD 77645 (GCPD), the nearby 69 comp star is
>
> U= 6.80
> B= 6.91
> V= 6.933
> R= 6.95
> I=  6.96
>
> Cheers,
> Sebastian
>