[vsnet-chat 518] Re: visual obs'n of Masi's Suspected Var near M27

[Gianluca Masi <gianmasi@fr.flashnet.it>]

Richard Huziak wrote:
> 
> Gianluca,
> 
> I checked the location of you suspected variable near M27 last night.
> There is no star visible at the location
> 
> Masi's Susp Var nr M27  Aug. 6.28    <14.5v      32cm reflector
> 
> 
> Please note that to visual observers, the starfield appears
> significantly different than on the unfiltered CCD frames.  Posting
> an image taken throught a 'visual' filter would be of great help.
> 
> ----------------------
> Richard Huziak,
> Saskatoon Centre
> The Royal Astronomical Society of Canada
> Saskatoon, Canada
> huziak@sedsystems.ca

Dear Richard,
thank you for your interest and observations. 
I am not surprised of the invisibility of the star to visual observer.
In fact, as reported by Brian Skiff in a previous vsnet-chat, the USNO
A1.0 star catalogue reports a
blue magnitude of 17.2 and a red magnitude of 13.7. 

Of course, a CCD frame in the V band will be useful. Unlucky, I have
not  a V filter, so I ask if somebody here can provide us with such a
frame.

Regards,
Gianluca Masi
-- 
***********************************************************************
* Gianluca Masi                           "Two things fill the soul   *
* Via Madonna de Loco, 47               with awe and reverence [...]: *
* 03023 Ceccano (FR)                     the starry sky above me and  *
* ITALY                                    the moral law within me"   * 
* email: gianmasi@fr.flashnet.it                                      *
* http://vsnet.eurolink.it/comets/                        I. Kant       *
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