[vsnet-lpv 53] Re: [CCD-astrometry-photometry] Re: QX Pup

[aah@nofs.navy.mil]

Astrometry of the red source near QX Pup on my I-band
and R-band frames, using USNO-A2.0, is
  07:42:16.81  -14:42:53.1  J2000
Though I had poor seeing, the source has an obviously
broader profile than nearby stars.

From Sanchez Contraras et al., 2000, A&A 355, 1103,
the Mira is located at
  07:42:16.9  -14:42:49
So the red source corresponds quite closely with the
southern, narrow lobe of nebulosity and not with
the Mira.
  I will do better astrometry with UCAC and also
post a color composite image when I get additional
data with better seeing.
  As I mentioned earlier, monitoring of this object
would be an interesting project for amateurs.  I would
be willing to coordinate the observations, but only
for those amateurs that can observe the source in
a standard passband such as Rc or Ic.  Since this is
a 700-day Mira, such a project would likely last about
3 years!
Arne

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