On Thu, Apr 20, 2017 at 1:16 PM, Phil Hodge <hodge@stsci.edu> wrote:
> On 04/20/2017 03:17 PM, Anne Archibald wrote:
>> Actually if I understood the spec, FITS header lines are 80 bytes long and contain ASCII with no NULLs; strings are quoted and trailing spaces are stripped.
> FITS BINTABLE extensions can have columns containing strings, and in that case the values are NULL terminated, except that if the string fills the field (i.e. there's no room for a NULL), the NULL will not be written.

Ah, that's what I was thinking of, thank you.

Robert Kern