Using VPHOT to transform my images

Affiliation
American Association of Variable Star Observers (AAVSO)
Wed, 08/05/2015 - 21:51

I have the Tbv and Tv for a particular telescope set up and images in V and B..

I put this information in VPHOT...but what is sequence File Select??

Affiliation
American Association of Variable Star Observers (AAVSO)
Sequence

Hi Michael:

I need a bit more help. Where is "sequence File Select"? I know the program well but could not see those specific words in the two places I thought you were referring to.  We could talk off-line? Send an email to me? Or give me more "input" in this thread!

Ken

 

 

Affiliation
American Association of Variable Star Observers (AAVSO)
"select sequence file"

Mike, Ken,

Perhaps you guys have already worked this out off line, but I'll post an answer for others that my have this question.

Mike, are you're referring to the "select sequence file" that appears in the "sequence" section of the Color Photometry dialog box?   VP wants the file name of the ensemble of comp stars you used to reduce the images.  VP needs to use the same comp star sequence for both the B and V images when applying the the transforms.

... didn't save the sequence? 

In the box at the upper left of the image display, which shows the active comp stars in use for the photometry of that image, there is a "save" option at the bottom of the list.  Once you have culled the list to the sequence you want "save" the sequence with a unique name.  The name you give that new sequence will appear as an option in the "sequence" section of the Color Photometry dialog box.

Phil