[Aavso-photometry] V420 Aur "b" Comp star should be OK (HMXB LPH040)

[Tim Crawford]

The "b" star has been unfairly questioned and sullied by me.

I have no reason what so ever to have suggested that it might be variable.

Apparently, I am not smarter than a 5th grader as I seemed to have confused a "b" with a "d."  

As far as I know, at the moment the "d" star is also OK [can you guess the confusion over trying to use a "b" star sequence value
when measuring the "d" star?]

Please accept my apology for any additional confusion my mistake may have caused anyone.  

Murphy seems to be alive and well in Oregon... wish he would go some place else for awhile ;-).

ad Astra

Tim Crawford CTX
Arch Cape Observatory
  




________________________________
From: Tim Crawford <tcarchcape at yahoo.com>
To: aavso-photometry at mira.aavso.org
Sent: Tuesday, January 20, 2009 11:58:24 PM
Subject: [Aavso-photometry] Comp Star Options for the HMXB V420 Aur aka LPH040

We have confirmed that the "k" star on this chart is a variable (tentatively an EB) and that the "b" star is a variable suspect.

Dr. Gordon Sarty has requested that the following stars be used, at this point:  f,h,j,m & o. 

It would also be preferable if you could use the h star as the check star, at this point (although this suggestion is not on the chart) and not included within the ensemble.

FYI, to get a 3 star ensemble in my fov I have no choice but to use the f,j & g stars keeping the h star as a check and out of he sequence.  While the "g" star is a bit redder than Dr. Sarty would like to be safe, so far we have not detected any problems with this star.

Dr. Sarty tells me that he has now made some new notes on the chart (LPH040)

http://homepage.usask.ca/~ges125/AAVSO_HMXB_Charts.html

I apologize to all for any misunderstandings and confusion... it simply happens that sometimes we discover comps are variable, regardless of the high quality of the original sequence.

Per Ardua ad Astra

Tim Crawford CTX
Arch Cape Observatory
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