[fitswcs] LSR in Paper III
Mark Calabretta
mcalabre at atnf.CSIRO.AU
Wed Jan 26 18:01:19 EST 2005
On Tue 2005/01/25 17:15:41 CDT, Arnold Rots wrote
in a message to: fitswcs at nrao.edu
>Amusing, Delhaye was inconsistent.
>However, are we sure 20 km/s is/was general practice?
Arnold,
I think this warrants a footnote at least.
>ZOPT is defined. In principle one could allow for ZRAD and ZELO,
ZRAD and ZELO have no currency, either in theory or practice. Let's not
confuse the meaning of "redshift" in the same way that "velocity" now
is.
Cheers, Mark
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