Software

Of all the planetarium software programs out their which is the most
accurate as far as the positions. Like RA Dic, AZ Alt of the planets and
stars and rise and set times? I tryed several and none match up with MICA
from the naval observatory. Red Shift is way off.

On Mon, 1 Sep 2003 07:25:17 -0500, "Bill Hennessy" wrote:

Of all the planetarium software programs out their which is the most
accurate as far as the positions. Like RA Dic, AZ Alt of the planets and
stars and rise and set times? I tryed several and none match up with MICA
from the naval observatory. Red Shift is way off.

Sky Charts ( Cartes du Ciel, http://www.stargazing.net/astropc/download.html )
is a very good freeware planetarium program. On this site you will find
additionnal high-precision planetary catalogs. I do not know it it does match
MICA but i believe that on the screen, the difference will be less thqan a pixel
anyway...
Benoît Morrissette

In message , Bill
Hennessy writes
Of all the planetarium software programs out their which is the most
accurate as far as the positions. Like RA Dic, AZ Alt of the planets and
stars and rise and set times? I tryed several and none match up with MICA
from the naval observatory. Red Shift is way off.

Bill Gray likes to be able to boast that Guide www.projectpluto.com is
tops for accuracy - it will do things like accurately show the
occultation of 28 Sagittarii that happened some years ago.
Most programs agree to within a few seconds AFAIK, but you have to
wonder why some of them don't - are they using a poor model, or messing
up the calculations based on it?
--
"Forty millions of miles it was from us, more than forty millions of miles of
void"