multicolorfits.header_frame_name#

multicolorfits.header_frame_name(hdrin, default='fk5')[source]#

Determine the celestial frame of a FITS header, as an astropy frame name.

Uses CTYPE prefixes (GLON/ELON) first, then RADESYS/RADECSYS for equatorial frames.

Parameters:

  • hdrin (astropy.io.fits.header) – Header object

  • default (str) – Frame to assume for equatorial headers without a RADESYS card.

Returns:

str – e.g. ‘fk5’, ‘icrs’, ‘galactic’, ‘barycentricmeanecliptic’