[kde-edu]: Machholz wrong position on chart

[Shawn Tayler]

And Kstars consistantly hangs at the afore mentioned point when I replace
the orig comets.dat file with the new one from JPL...


On Sun, 9 Jan 2005 19:17:30 -0800 Shawn Tayler <stayler at xmtservices.net>
exclaimed:

> Well,
> 
> I found it in the listing fro JPL.  Its there but KStars isn't showing
> it. Is there some threshold setting I've got goobered?
> 
> Shawn
> 
> On Sun, 9 Jan 2005 18:59:29 -0800 Shawn Tayler <stayler at xmtservices.net>
> exclaimed:
> 
> > 
> > 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
> > > > _______________________________________________
> > > > kde-edu mailing list
> > > > kde-edu at mail.kde.org
> > > > https://mail.kde.org/mailman/listinfo/kde-edu
> > > 
> > > -- 
> > > KStars: Desktop Planetarium for KDE
> > > http://edu.kde.org/kstars
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