The culprit is the 123 comp, which is not only red (B-V= 1.9 over three nights)
it is a variable and not part of the sequence!!

This is an error propagated by the automated importation process somehow. This
star was actually discovered to be variable during the determination of this
sequence from the photometry files back in 2002.

There is not a great selection of non-red 12th mag stars to choose from here, or
there would be another 12th mag comp listed. I'll see what we can do.

Thank you for bringing this to our attention. Please submit a CHET report so it
doesn't get lost in the shuffle.

Mike Simonsen



--- In cvnet-discussion@yahoogroups.com, "Gary Poyner" <garypoyner@...> wrote:
>
> Couldn't agree more with your comments John. I've used the
> 126 star only a handful of times, and I have no confidence
> in the brighter end of this sequence at all. Most of my estimates
> have been made with the 131 close comparison. I don't have
> a problem using a single comparison star, and of course it's
> very easy to re-reduce the magnitude should a new value
> be given to that star in due course. I only find the 131 star
> gives me trouble is when V1413 is in eclipse. I don't have a problem
> with the faint end of the sequence.
>
> Bob Stine makes a valuable comment too. We shouldn't be so
> lazy when it comes to querying a sequence, and that includes
> me in this case.
>
> regards,
> Gary
> PYG
> -------------------------------------------------------------
> Gary Poyner
> garypoyner@...
> http://www.garypoyner.pwp.blueyonder.co.uk/varstars.html
> "You can always tell a Brummie....but you can't tell him much"!
> --------------------------------------------------------------
>
> ----- Original Message -----
> From: "cnj999" <jbortle@...>
> To: <cvnet-discussion@yahoogroups.com>
> Sent: Tuesday, July 14, 2009 3:14 PM
> Subject: [cvnet-discussion] V1413 AQL's AAVSO Sequence?
>
>
> Having picked up V1413 Aql last evening for the first time this observing
> season and using the latest AAVSO sequence, I would like to ask if others
> find this sequence less than good visually. Actually, I felt it was
> exceedingly poor. The 126 and particularly the 128 seem almost as bright as
> the 123, while the 129 is dramatically fainter than either, yet very close
> to the 131.
>
> Thus, any estimated magnitudes of V1413 would seem to me highly dependent of
> just what combination of comp stars are chosen, with widely differing final
> magnitudes. This is particularly troublesome given that V1413 has a close
> companion potentially influencing estimates and also that the star seems to
> be entering a new active phase. Other's opinions?
>
> JBortle (BRJ)
>