[Aavso-photometry] GJ436b comp stars...constant over time?

[Pedro Pastor]

Thank you Arne for your response, but I'm not able to get the information
your refer to. I'm sure I'm doing somthing wrong, but I don't know what is
it.

>From AAVSO web site I reach to 2 different pages for GJ-436:

1) The VSP record for the object:

http://www.aavso.org/vsx/index.php?view=detail.top&oid=161108


2) The chart:
http://www.aavso.org/cgi-bin/vsp.pl?action=render&name=GJ+436&ra=&dec=&chart
title=&chartcomment=&aavsoscale=Choose&fov=30&resolution=100&maglimit=&north
=down&east=right&Submit=Plot+Chart

In no case I could find the BVRI photometry. Where is the link for that?

Another question. Is it possible to navigate to the corresponding Chart or
Light-Curve from the VSP page for a specific object? I could get to it for
this object.

Thank you very much in advance.

Pedro


-----Mensaje original-----
De: ahenden at gmail.com [mailto:ahenden at gmail.com] En nombre de Arne Henden
Enviado el: sábado, 05 de abril de 2008 13:45
Para: Pedro Pastor
CC: aavso-photometry at mira.aavso.org
Asunto: Re: [Aavso-photometry] GJ436b comp stars...constant over time?

Not quite sure what you mean, Pedro.  The VSP marked comparison stars have
BVRI photometry, as given in the accompanying photometry table.
Arne

On Fri, Apr 4, 2008 at 2:00 PM, Pedro Pastor <pps at dlsi.ua.es> wrote:
> No Tom, I haven't found any noticeable variation for the 106 and 107 
> stars  during the night-session.
>
>  On the other hand, I'm using the R filter. Could anybody provide me 
> with the  respective R magnitudes for some comparation stars?
>
>  Thank you very much.
>
>  Pedro
>
>  -----Mensaje original-----
>  De: aavso-photometry-bounces at mira.aavso.org
>  [mailto:aavso-photometry-bounces at mira.aavso.org] En nombre de Tom 
> Krajci  Enviado el: viernes, 04 de abril de 2008 15:52
>  Para: aavso-photometry at mira.aavso.org
>  Asunto: [Aavso-photometry] GJ436b comp stars...constant over time?
>
>
>
>  A bunch of folks have been working on GJ436b for some time.  Two comp 
> stars  are most often used:  HIP 57103 (3 - 4 arcminutes NE) and GSC
>  1984-1884 (3 - 4 arcmin N).
>
>  Have these comps shown any variability over time?
>
>  Thanks in advance.
>
>  -------------------------------------------
>  Tom Krajci
>  Cloudcroft, New Mexico
>  http://picasaweb.google.com/tom.krajci
>
>  http://overton2.tamu.edu/aset/krajci/
>
>  Center for Backyard Astrophysics (CBA)  http://cbastro.org/ CBA New 
> Mexico
>
>  American Association of Variable Star  Observers (AAVSO): KTC 
> http://www.aavso.org/
>  -------------------------------------------
>
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