Re: Satellite observing

Sue J. Worden (worden@uts.cc.utexas.edu)
Sun, 12 Apr 1998 12:41:23 -0500 (CDT)

> Date: Sun, 12 Apr 1998 00:03:41 +0200
> To: SeeSat-L@cds.plasma.mpe-garching.mpg.de
> From: b_gimle@algonet.se (Bjoern Gimle)
> Subject: Re: Satellite observing
> [ ... ]
> This means that "in May" you can enjoy the long twilight of the northern
> latitudes, while you are in a relatively dark night.
> At these higher latitudes, the longitudes are a bit closer to each other, so
> more passes per night may be within range.
> And all satellites make a smaller angle with the longitudes, some even go
> due West-East at those latitudes, so even more passes are visible per night.


Great comments, Bjoern!  Thanks!  I knew folks on the list would
have something to say on this topic. :-)  You're right about the
shadow height varying by sky position, of course.  I was trying
to keep things "simple" but missed an important point in doing so.
Have you forwarded your comments to the "Star Hustler" folks?  If
not, would you mind if I did?

As an aside, the Old Farmer's Almanac is published in Dublin, New
Hampshire, which is a few minutes shy of being at 43 degrees North,
and some of their astronomical tables reflect this.

--Sue (worden@uts.cc.utexas.edu)