[vsnet-chat 4882] Re: new Tycho variables & HD 235749

[Thom Gandet <tgandet.EXSPAM@mindspring.com>]

   Thank you, John!  That was my recent experience in searching SIMBAD
for early NSVs.  As I discovered to my chagrin, however, SIMBAD may
find the NSV data for an "early" NSV if you enter a common name, such
as a Bayer or Flamsteed name instead of the NSV number.  And, like
removing obsolete laws from the books, getting an object out of the
NSV once it's in there seems to be impossible.

   There is an analogous situation with regard to naming visual
binary companions (including planetary ones).  The Manchester IAU
GA started a process to revise the designation scheme for visual
binaries, and the USNO maintains a web page about it.  The home page
is http://ad.usno.navy.mil/wds/iaumcm.html and archival material is
at http://ad.usno.navy.mil/ad/wds/wmc/iaumcm_old.html.  Interesting
stuff.


Cordially,
Thom Gandet


crawl@zoom.co.uk wrote:
> 
> The NSV Supplement is invariably missed out in these searches, despite
> containing 10,000+ objects.  Last I tried a search it wasn't in SIMBAD, so
> professional authors often miss them.  Indeed, last time I tried for a
> specific "old" NSV object in SIMBAD [ie NSV <15,000] I had no success:
> although there are many NSV objects in SIMBAD, it is not complete with
> regards the "old" NSV.
> 
> John

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