Mr. Chevalley has given the answer: it's an infra-red variable. Uncheck "Show IR Variables" in the setup menu and it goes away. I looked for NSV 24488 on SIMBAD and there it was: a carbon star discovered by IRAS.
Bud On Sat, 4 Sep 2010, crite40 wrote: > > > --- In [email protected], William Hamblen <wrhamb...@...> > wrote: >> >> On 9/2/2010 6:43 PM, crite40 wrote: >>> Good day all! >>> I have recently noticed that I seem to get some VERY odd information on >>> some variable stars. An occasional star looks wildly out of place, it is >>> ALWAYS a variable and it has a very high max magnitude, often mag 1 or 2 >>> where no such star exists. I suspect that a variable star may well exist in >>> that position, but some thing is messing up the information displayed. >>> It ONLY applies to variables and everything else seems fine. >>> It is also present in both versions of Cartes du Ciel, 2.7x and 3. >>> Anyone got any ideas? >>> Suggestions gratefully received as it frequently "mucks up" my finder >>> charts. >>> Cliff Wright New Zealand. >> This is caused by the catalog data. It would be easier if you could >> quote a particular star. The GCVS number would be OK. >> >> Bud >> > thanks Bud. > Here's an example. I have looking around Scutum, which is well placed here in > NZ. The charts give me a star cataloged as 24488 NSV with a magnitude range > of 1.6 to 2.4 at RA 18h 31 and DEC -08 35'. > I am an old astronomer and I am VERY sure that there ain't no such star!!!. > Does that help? > Regards Cliff Wright. > > > > ------------------------------------ > > Yahoo! Groups Links > > >
