| |
|
Article: <[email protected]>
From: [email protected](Nancy )
Subject: Re: The MANY FACES of Hale-Bopp - ORBIT PERIOD
Date: 26 Mar 1997 16:17:27 GMT
In article: <[email protected]> Jeremy Hallum writes:
> How do YOU know that it leaps AWAY from Jupiter, eh?
> Or does your little sky plotting program plot in 3-D?
> Remember that looking at a 3-D function in 2-D can make
> things looks more than a little funny.
> [email protected] (Jeremy Hallum)
If the view from Earth, as the RA and Dec calculated by the Orbital Elements represent, moves the Declination UP 3 arc minutes, and Jupiter is BELOW what is supposed to be the passing comet, then that's a 3 arc minute leap away! How could it be otherwise?
If you look out your window and see a helicopter hovering 20 above the ground, and then see it move to where it is hovering 40 feet above the ground, this is NOT an illusion created because you can't see the helicoper from ABOVE. Duh!