Re: [ATM] Off topic - observed the Venus transit - ghost halo?

["Stathis Kafalis" <info@stathis-firstlight.de>]

Yes Tom, I saw it as well quite nice and easily from Munich / Germany with a
8" Dobsonian with Baader Filter Film.
So did dosends of Astrofriends. It was best seen when Venus was 3/4 in front
the sun.

Du to the low contrast it was more difficoult to photograph it. See
http://www.astrotreff.de/topic.asp?TOPIC_ID=10852
last picture taken with a 12" Dobsonian

Stathis Kafalis
www.stathis-firstlight.de

----- Original Message ----- 
From: "Krajci, Thomas J" <KrajciTJ@state.gov>
To: <AIP4WIN@yahoogroups.com>; <zambutomirrorgroup@yahoogroups.com>;
<binaries@yahoogroups.com>; <atm@atmlist.net>; <mpml@yahoogroups.com>;
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Sent: Wednesday, June 09, 2004 1:02 PM
Subject: [ATM] Off topic - observed the Venus transit - ghost halo?


> I observed the Venus transit from Central Asia in pretty good seeing
> conditions.  I did not notice much of a black drop effect...which appears
to
> echo the comments of many others.
>
> However, I did notice a 'ghost halo' effect shortly before 2nd and shortly
> after 3rd contact.  The portion of Venus that was slightly off the sun's
> disk was surrounded by a thin, faint halo.  This was most pronounced when
> less than 50% of Venus was 'off' the sun.  I pointed this out to other
> observers, and they all saw it too.
>
> We used a 10 inch f/7 dob, stopped down to 8 inches and using Baader astro
> filter film at a magnification of 70x.  Seeing was quite good at times - a
> cloudless day.
>
> Did anyone else note similar observations?  Any web sites with photos,
> drawings, or text about this?
>
> Thanks in advance,
> Tom Krajci
> Tashkent, Uzbekistan
>
>
>
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