Handling of single quote in FITS header

[prookyon]

If the object name is something that contains a single quote (for example Stephan's Quintet ) then SharpCap currently stores it in FITS header as is:

Code: Select all

OBJECT  = 'Stephan's Quintet'  /

This causes the single quote in the middle to end the value and the rest is treated as comment.
I googled a bit and several documents (for example https://fits.gsfc.nasa.gov/users_guide/ ... ode20.html ) mention that "To include a single quote within a character string, use two successive single quotes"

Code: Select all

OBJECT  = 'Stephan''s Quintet' /

I tested with several applications and at least those that I mostly use will then properly display it. (Though I also saw some that still cut it to "Stephan" and some will show "Stephans Quintet" - but I think still an improvement overall)
Is this something that could be fixed? I guess manual workaround is to just replace the single quotes coming from object databases manually with an apostrophe.

[admin]

Hi,

yes, that can be fixed - it looks like the encoding of a single quote by using two consecutive ones is part of the FITS standard, but the FITS writing library I use is presumably not handling that case. I will either fix the library or work around it

cheers,

Robin