↩ 🔵 🔵 🔵 ❪֎❫ Astropy Lexicon ○ astropy.io ⚬ FITS ○˒ astropy.io.fits.HDUList() ⚬ astropy.io.fits.Header() ⚬ astropy.io.fits.open() ⚬ astropy.io.fits.PrimaryHDU() ⚬