[kde-edu]: Machholz wrong position on chart

[Shawn Tayler]

Hi Jason,

Well that may account for it as there is no listing for 2004 Q2.  The
cometsa I was trying were 1 and 2  There is nothing shown in the area of
the sky where 2004Q2 is right now.  What name is it under in the comet.dat
file from JPL?

Shawn

On Sun, 9 Jan 2005 18:34:17 -0700 Jason Harris <kstars at 30doradus.org>
exclaimed:

> Hello Shawn,
> 
> Please provide more details.  Are you sure you are looking at "Machholz 
> (2004 Q2)" and not "Machholz 1" or "Machholz 2" (Machholz is a very 
> productive comet hunter!).
> 
> If you are sure you have the right comet Machholz, what coordinates does 
> KStars give for it (give the time, date and location also)?
> 
> I have set the time to 00:00 UT on 10 Jan 2005, and the location to 
> Tucson, AZ, USA.  KStars reports the following coordinates for Machholz 
> (2004 Q2):  
> 03h 29m 05s, +27d 51' 24"
> 
> The JPL website 
> http://cfa-www.harvard.edu/iau/Ephemerides/Comets/2004Q2.html
> reports the following coordinates for the same time and date:
> 03h 30.43m   +27d 58.0'
> 
> They are slightly different because JPL gives geocentric coordinates 
> precessed to epoch 2000.0, whereas KStars reports coordinates fro the 
> real epoch (2005.03), as seen from the observing location.
> 
> hope this helps,
> Jason
> 
> PS- in the future, you can direct KStars-specific questions to 
> kstars-devel at kde.org
> 
> On Sunday 09 January 2005 04:00 pm, Shawn Tayler wrote:
> > Hi Guys,
> >
> > I've been looking throught he archive for the list and not found an
> > answer to the following problem.
> >
> > I have downloaded the latest comet.dat file and kstars refuses to
> > show Machholz in its proper position.  The data from JPL matches
> > what's in the comets.dat file.  KSatrs shows the planets correctly
> > for my location.  So I am befuddled.  There is nothing shown in the
> > position I know that Machholz is currently occupying.  Is there some
> > subtle setting somewhere that I may of missed?
> >
> > Shawn
> > _______________________________________________
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> > kde-edu at mail.kde.org
> > https://mail.kde.org/mailman/listinfo/kde-edu
> 
> -- 
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> http://edu.kde.org/kstars
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