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Hi Doug,
No, I'm a pep man so I merely look at the positions
in the colour/colour diagram (B-V/U-B). It's hard to get any single star with
the colours you described. Some emission would help, but this is not common for
F and G stars. Does anyone publish light curves of all these Mis objects? I see
that it's close to the galactic equator so probably has some reddening. Rather
like the stars near V4742 Sgr - I was impressed the way a dark region crossed
this field to the SW of the nova and blotted out about half the stars
there.
Since writing this I've received a note from Mike
Simonsen and the Henden sequence. Not too much sign of reddening there. But I
note that the star is labelled Cep with an amplitude of 12.3-13.8C. I'm
unfamiliar with the C but presume that it denotes unfiltered CCD. Does Cep mean
Cepheid? No period was quoted. The range seems excessively large for a Cepheid,
especially through what amounts to a red filter, unless it's a very long period
object. The presence of a companion would diminish the amplitude quite
substantially, although perhaps not much in R if the companion was blue. It all
looks a bit strange - perhaps I'm misreading the Cep and the range? The colours
you've quoted seem even more curious. Was there an error with the U-b, which
seems out of step with the others? A shame the star is not visible from
35S!
Regards,
Stan
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