Re: GSC 1040-399 + new variable

[Michael Koppelman <lolife@bitstream.net>]

Let's see if I can get my TASS nomenclature right. This is 
TassJ190656.0+083710.4 (aka GSC 1040-0431). Tass does have data and it 
appears to have similar flickering. I'll play with this in TS and see 
if it is indeed periodic. There are close companions but my apertures 
did not include them. At this point I think this variation is probably 
real. (I've said that before, though!)

Converting the Tycho mags I get B-V=0.444. Tass has average V-Ic=0.561. 
This implies a spectral type around F4 or so. 2MASS has J=9.426, 
H=9.221 and K=9.049.

Michael Koppelman


On Wednesday, July 16, 2003, at 10:37 AM, Michael Koppelman wrote:

> In the process one of my (would be) comp stars turned up variable. I 
> don't know if this is a noted TASS star or not, but we should have 
> some data. The amplitude is very small and the period very short so I 
> don't know what it is. See:
>
> http://www.lolife.com/astronomy/gsc1040-431.jpg
>
> It does not appear to be a known variable.