[kde-edu]: Machholz wrong position on chart
stayler at xmtservices.net
Mon Jan 10 03:59:29 CET 2005
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?
On Sun, 9 Jan 2005 18:34:17 -0700 Jason Harris <kstars at 30doradus.org>
> 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
> 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,
> 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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