[fitsbits] Celsius unit in FITS keyword comments

[Michael Nolan]

The BIPM handbook section 2.2 referenced by Lucio Chiappetti says the
symbol is the circle then C, and the formal name is "degree Celsius". so it
seems like it has to either be the best effort "oC" or "degree Celsius".

On Thu, Mar 3, 2016 at 7:49 AM, Forveille thierry <
thierry.forveille at obs.ujf-grenoble.fr> wrote:

>  On 03/03/2016 03:31 PM, Lucio Chiappetti wrote:
>
>> It is perhaps a pity that FITS standard 4.3.1 and Table 6 defining
>> compound units do NOT allow to define a compound unit as an unit plus/minus
>> a constant, so one cannot use K–273.15.
>>
> Well, it is a pity that the FITS compound units rules allow prefixed-units
> (I was outvoted on
> that one, and still think that was a bad decision), and I am glad they at
> least do not allow
> K–273.15, with the next step of course being (K–273.15)*9/5+32 ;-)
>
>
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