Calculate (X, Y) of an input (RA, DEC)
Posted: Wed Feb 09, 2022 10:36 am
Hello everyone
I am trying to input the sky coordinates (RA, DEC) of some optical-detected sources to generate the image coordinates (X, Y) with respect to a reference (RA0, DEC0).
However, radec2xy always raise errors because the input fits file is NOT readable. How to convert an input (RA, DEC) to (X, Y) with respect to a reference (RA0, DEC0)?
Could you please advise?
I am trying to input the sky coordinates (RA, DEC) of some optical-detected sources to generate the image coordinates (X, Y) with respect to a reference (RA0, DEC0).
However, radec2xy always raise errors because the input fits file is NOT readable. How to convert an input (RA, DEC) to (X, Y) with respect to a reference (RA0, DEC0)?
Could you please advise?