[vsnet-chat 532] Re: Variable near M27 (Jahn)

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

> Bodenteich, den 07.08.97
> 
> Dear Gianluca,
> 
> I downloaded the region around your variable using USNO A1.0. PLease note
> that the red magnitude of the star is 13.7 and the blue magnitude 17.2!
> The difference of 3.5 is very high. The difference is in most cases only
> 2.0 magnitudes.
> 
> Did you used different instrument types, filters or CCD for your
> exposures? Often such combinations images such high color differences in
> spectrum also different to the "normal stars".
> 
> Jost Jahn, Bodenteich, FAX 05824-4041
> 
> Versuchen Sie den astronomischen Ansagedienst: 0581-72033
> ## CrossPoint v3.11 R ##

Dear Collegues,
thank you for your messages and interest toward the new variable.

I am going to precise what follows.

1) I have used always the same instruments (a 15 cm f/5 reflector
telescope and a SBIG ST-7 CCD camera), without filters;
2) The star variable I have discovered in NOT the Ondra's one: there is
a distance of about 10' between them. In my pictures, it is also visible
the Ondra's variable, that is _very_ close to M27.
3) V.P.Goranskij and O.Durlewich, SAI, Moscow have told me that the star
is NOT reported on GCVS, NSV and other catalogues known for GCVS
command.  
4) Andras Holl, Konkoly Observatory has told me that there are no papers
submitted to IBVS on the discovery of any variable object anywhere near
the coordinates I have reported.

I hope that this note will help us.

Regards,
Gianluca
-- 
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* 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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