Using the Annotate Image Script?

[sreilly]

I am trying to identify an object in my image and although the script runs fine without error it appears that the alignment is off. I'm thinking that maybe this is because it has been calibrated and aligned possibly? However using the very first of the sequence doesn't seem to alter the alignment of the annotation. Object in question is below left of the main galaxy looking something like a comet although I highly doubt it is. Is there something I'm missing here?

[Duncan]

Just looking at a chart, it looks like the object near the bottom edge of the frame is a combination of two galaxies:

PGC4541551
PGC54419

but I think there might be something wrong with your position data. The galaxy that has been labelled near the left hand edge (PGC2530333) isn't where it should be. The label looks about the right distance from NGC5907, but rotated counterclockwise by about 30 degrees. At what point in the process did you do a plate solve?

Duncan

[sreilly]

This was a single image calibrated and cosmetic correction applied.

[Andres.Pozo]

Hi,

the problem is that the image has wrong metadata. How did you plate solve the image? Did you use ImageSolver or other external tool?

If you used an external tool probably the problem is the vertical orientation of the FITS image. If this is the case, you can apply a vertical mirror to the image or change the default coordinate origin for FITS images: "Format Explorer / FITS / Edit Preferences / Miscellaneous options / Coordinate origin".

Andrés.

[sreilly]

Thanks. The images are acquired using ACP Expert and plate solved as they are acquired using PinPoint within ACP Expert. The targets are setup so that the guiding is dithered to improve hot/cold pixel rejection. All processing done in PI. Seems there is another program called eXcalibrator in which there is an option to set the image to flip if processed in PI.

Steve