[vsnet-newvar 1507] Re: New Bernhard variable (Brh V115)

[jg <jg@jgws.freeisp.co.uk>]

Vizier investigations reveal that further photometry for this object can
be found via the TASS Mk III tenxcat database at:-

http://a188-l009.rit.edu/cgi-bin/tass_curve2.cgi?285.8530_-03.7363

Here V-Ic information can be found showing a range of roughly +3.5 to
+4, which is quite red, helping to confim it's LPV nature.

Variation over long time intervals also appears to be of low amplitude
with that extra data, so it is probably an Irregular LPV, though
Semiregular is not precluded.

Also in the MSX5C infrared catalogue.  A more distant IRAS source could
be just as easily associated with another similar mag star nearby.

Cheers

John

John Greaves



Klaus Bernhard wrote:
> 
> Dear colleagues!
> 
> I would like to send you observations of a new variable star
> (Brh V115), which I have discovered in a systematic CCD-based
> search for new variables.
> In each observing run typically 400 images are taken of several survey
> fields.
> The frames are processed automatically.
> 
> Instruments:
> CCD-camera: Starlight Xpress SX (unfiltered)
> Telescope: Celestron-8 (20 cm Schmidt-Cassegrain)
> 
> New variable star:
> new Brh V115 190324.5  -034408 (J2000) 11.4-11.6 (CCD)
> 
> comments:
> Brh V115: GSC 5132 1538
> The comparison star is GSC 5136 1424 (12.0 mag),
> which has been checked for constant brightness.
> The USNO A2.0 magnitudes (r:10.9, b: 13.9) and
> the following observations suggest a long period variable,
> type and period still unknown.
> 
> object         YYMMDD(UT)   mag(CCD)   code
> Brh V115   020627.0040       11.55          Brh.BAV
> Brh V115   020629.0040       11.53          Brh.BAV
> Brh V115   020629.9825       11.51          Brh.BAV
> Brh V115   020630.9922       11.46          Brh.BAV
> Brh V115   020701.9735       11.42          Brh.BAV
> Brh V115   020705.9999       11.41          Brh.BAV
> Brh V115   020707.9714       11.40          Brh.BAV
> Brh V115   020708.9624       11.44          Brh.BAV
> Brh V115   020719.9596       11.48          Brh.BAV
> Brh V115   020720.9603       11.47          Brh.BAV
> 
> Regards,
> 
> Klaus Bernhard
> 
> Klaus Bernhard
> Kafkaweg 5
> A-4030 LINZ
> AUSTRIA
> 
> kl.bernhard@aon.at
> http://mitglied.lycos.de/klausbernhard/
>

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