How to give the constrain to the Astrometry.net web service

[‍Ryoungwook Kang]

I use the Astrometry.net web service by python code (client.py.) Is there in any way to give the constrain like field of view, pixel size or magnitude?

Best regards,

Kang Ryoungwook

[Dustin Lang]

Hi,

If you run

    python3 client.py -h

you will get the help message.

To give the image size, you want to use "--scale-units", "--scale-lower", and "--scale-upper".

For example, to say that your pixel scale is between 1.0 and 1.2 arcseconds per pixel,

--scale-units arcsecperpix --scale-lower 1.0 --scale-upper 1.2

cheers,

dustin

  --scale-units=SCALE_UNITS
                        Units for scale estimate ("arcsecperpix",
                        "arcminwidth", "degwidth", or "focalmm")
  --scale-lower=SCALE_LOWER
                        Scale lower-bound
  --scale-upper=SCALE_UPPER
                        Scale upper-bound

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