----- Original Message -----
From: "Bill J Gray" <pluto@...>
To: <guide-user@yahoogroups.com>
Sent: Friday, March 29, 2002 5:03 PM
Subject: [guide-user] Variables/binaries/lunar posn/asteroid sym


> EPSILON LYRAE:
>
> Ben, about Epsilon Lyrae: you're right, there is a problem
> here. Tycho-2 does describe this as two stars, TYC 3122 3439 1 and
> TYC 3122 3439 2. They have different magnitudes, but unfortunately
> the same position.

Thanks for that, Bill. As I said in another message, I've been told by my
own users that one of the components of Eps Lyr was "missing" from Tycho 2,
but I'd not picked up on the fact that it was in fact there but in the same
position as the other component! I wonder if this same problem also accounts
for the other "missing" multiple star components in Tycho 2 vs Tycho? I'll
investigate and find out.

Regards,

Chris
---------------------------------------------------------------
Chris Marriott, SkyMap Software, UK
e-mail: chris@... Web site: http://www.skymap.com
Astronomy software written by astronomers, for astronomers