Re: HD 193649: a Delta Scuti variable ?

[Michael Koppelman <lolife@bitstream.net>]

Cool. This is well-placed right now. The amplitude is pretty 
small but it is pretty bright so I should be able to get good 
data. Since I have Rc and Ic now I want to get time-series 
photometry in all my band passes. I welcome others that want to 
grab data, too. Depending on the weather and other factors, I 
may be able to get transformed magnitudes. Maybe Arne or someone 
else with big glass would care to calibrate the field for us?

Just for the record, tell me about the new EWs, too! I'm not prejudice.

Michael K.

On Sunday, September 8, 2002, at 05:03  PM, Patrick Wils wrote:

> HD 193649 is star number 218771 in the September data set.  It is at 20
> 21 05.812 +08 36 43.83.  Simbad has B=9.53, V=9.23, spectral type A5.
> Tom observed it on 4 nights.  The first two nights show changes not
> uncommon to a multiperiodic Delta Scuti star (which it might wel be
> according to its spectral type), with an amplitude of something like
> 0.1 mag in V (and somewhat less in Ic).  The third night shows much
> scatter with large errors, and there are only a couple of observations
> on the last night, so not much can be said about them.
> Michael K., this may really turn out to be change from EWs ! :-)