[vsnet-chat 4572] Re: new Tycho variables...

["Sebastian Otero" <varsao@sinectis.com.ar>]

> A list of freshly analysed possibly variable stars from the Tycho data
> annexes can be found at the CDS ftp site under the J/A+A/373/576
subdirectory.

> of the
> potentially variable objects that he also lists in newvar.cat, several of
> the Luminous Milky Way stars are suggested to be variable according to
this
> fresh analysis of Tycho Epoch Photometry.
>
> List follows:-


John and all:
                  I have searched for photometry (from GCPD) of these stars
and I don't think that something worth can be done visually. Furthermore I
have my doubts regarding some of them being actually variable!

One by one:

> > LSV+55.2        3690  1948 1     1069

ID / V, B-V from all PEP sources

HD 901 / 7.43, 1.26 ;  7.437, 1.279 ; 7.43
it looks very constant!!!!! Even Hipparcos V magnitude is 7.43.

> > LSV+57.33       3694  1727 1

BD +56 618
No data

> > LSI+61.282      4046   118 1

BD +60 501 /  9.51, 0.45 ; 9.58, 0.44 ; 9.58, 0.45 ; 9.58 ; 9.60, 0.46 ;
9.60

> > LSV+35.12       2402     6 1      2517

HD 2841 / 6.885
Hipparcos magnitude is 6.87. B-V is 1.64.


> > LSII+27.26     2148  3858 1

HD 333048
No data

> > LSIII+55.25     3973  1031 1

HD 235749 / 8.81, 1.71 ; 8.93, 1.60
This one seems to be an ordinary red variable deserving attention !!!

> > LSIII+47.58     3611   701 1    11092

HD 14606 /  7.684, 0.198
And Hipparcos V magntiude is 7.69. Doubtful...

> > LSI+59.24     4281  2033 1

HD 240464 /  9.583; 9.59, 0.30 ; 9.59, 0.31 ; 9.62, 0.32
Doesn't seem to be...

> > LSS4360        6840   821 1      8689

HD 11326 / 6.589 ; 6.595 ; 6.606
Hipparcos V magnitude 6.59, B-V 1.10. It also looks constant.

> > LSS4857        6269  2398 1

HD 167611 / 9.45, 0.19 ; 9.450 ; 9.481 ; 9.52, 0.16
This one looks slightly variable.


Regards,
Sebastian.




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