Wide-angle images overlay
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IToncek
Jan 5, 2023, 5:02:19 PM1/5/23
to astrometry
Hello,
I've just recently got Astrometry working and I had issues with wide-angle (>50° FOV) images. From browsing this forum, I've found, it's best to crop the image before using astrometry but now I'm wondering, if the info overlay (written to *-wcs.png file) could be extended to the uncropped part?
Thanks for answers, IToncek
I've just recently got Astrometry working and I had issues with wide-angle (>50° FOV) images. From browsing this forum, I've found, it's best to crop the image before using astrometry but now I'm wondering, if the info overlay (written to *-wcs.png file) could be extended to the uncropped part?
Thanks for answers, IToncek
Dustin Lang
Jan 10, 2023, 11:42:02 AM1/10/23
to astrometry
Hi,
There is currently not an easy way to do that, sorry!
This is on the wish-list, but no progress...
If you are using the downloadable code and running locally, there is a not-super-easy way to do it...
- edit the .wcs file, editing the CRPIX1 and CRPIX2 header cards, adding in the pixel coordinates of corner of the cropping
- use plotann.py to plot using that .wcs file
cheers,
dustin
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