Re: units symbols

From: William Pence <pence-at-milkyway.gsfc.nasa.gov>
Date: Tue, 02 Oct 2007 13:58:56 -0400


derriere-at-newb6.u-strasbg.fr wrote:
>
> Dear data modelers,
>
> I attach to this mail a comparison of the symbols used
> for units in different sources: IAU recommendations,
> VizieR, HEASARC and the GNU software Units.

The units discussion in the FITS Standard document is more up-to-date and authoritative than the HEASARC document. In particular, see section 4.3 of the proposed new version of the FITS Standard, which is available from the FITS Support Office web page at http://fits.gsfc.nasa.gov.

-Bill Pence

-- 
____________________________________________________________________
Dr. William Pence                       pence-at-milkyway.gsfc.nasa.gov
NASA/GSFC Code 662       HEASARC        +1-301-286-4599 (voice)
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Received on 2007-10-02Z20:14:19