Hi Bill, long time user from Guide4 and Group member. Although I'm a basic
Guide user I'm looking forward to seeing your release of Guide9. I, and
several friends, have found Guide a great 'trouble free' resource for the
amateur astronomy community.

"But despite that, I still consider it [UAC-3] a major advance over GSC and
am happy to have it as the basic star catalog for Guide 9.0."

Will Guide9 still include GSC?
Can Guide8's GSC be moved into Guide9 selected and used if desired?
Will UAC-3 designations be compatible with other Sky Atlas'?
Although I believe the answer is "Yes", will Guide8 and Guide9 co-exist?

Thkx for all your extensive research, work and Great product, Guide...joe
:)

"May You Go Among The Imperishable Stars"
Joe Mize www.cav-sfo.com
Chiefland Astronomy Village, Fla.

----- Original Message -----
From: "Bill J Gray" <pluto@...>
To: <guide-user@yahoogroups.com>
Sent: Sunday, September 19, 2010 8:54 AM
Subject: Re: [guide-user] Guide 9


> Hi Owen,
>
> True, UCAC-3 is quite far from perfect. There are some really
> weird things in it. But I didn't really have much better to offer.
>
> Guides 1.0 through 8.0 were based on the Hubble Guide Star Catalog
> (part of what I had in mind when I chose the name). At the time,
> GSC was an utterly amazing leap forward over anything else available.
> It's almost obsolete now, but you'll notice that you can still get
> decent star charts with it... which is what most people use it for.
>
> UCAC-3 will provide about five times the star density. The magnitudes
> aren't photometric, but neither are they the total junk provided by
> GSC (and 2MASS magnitudes are provided as well). The proper motions
> have minor issues for all stars and _major_ issues for some stars
> (and to make it more annoying, you can't really tell in which class
> a given star falls). However, GSC provided us with no proper motion
> data at all.
>
> I do regard UCAC-3 with some disappointment. It took a long, long
> time to come out, which I took as a sign that it was Going to Be Done
> Right. When I got the DVD, I quickly found all sorts of issues, some
> of the "how the %$!* could you not have found this?" sort (I don't think
> anyone did the equivalent of beta-testing the catalog).
>
> But despite that, I still consider it a major advance over GSC and
> am happy to have it as the basic star catalog for Guide 9.0.
>
> -- Bill
>
>
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