[guide-user] One bug fixed/UCAC display

Paul Schlyter Apr 18, 2000

> A gent visiting my booth mentioned seeing an occultation of a star by
> Saturn "a decade or so ago". It so happens that, when testing Guide's
> accuracy for the satellites of Saturn, I used some timings made by Paul
> Schlyter for the occultation of 28 Sgr by Titan (and Saturn), on 3 July
> 1989. (Paul's viewpoint in Stockholm must have been near the centerline,
> since he also saw a central flash!) I'd used this often enough for the
> date to stick in my mind.

Analysis of reported observations from several tens of observers
across Europe did show that the centerline crossed northern Germany.
However, as seen from northern Europe, Saturn was very low in the sky
(from Stockholm it was only 8 degrees above the horizon), thus the
north-south difference in positions of the observers were greatly
foreshortened, making the central flash visible over a very large
area: from Central Scandinavia down to Central Europe.

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Paul Schlyter, Swedish Amateur Astronomer's Society (SAAF)
Grev Turegatan 40, S-114 38 Stockholm, SWEDEN
e-mail: pausch at saaf dot se or paul.schlyter at ausys dot se
WWW: http://hotel04.ausys.se/pausch http://welcome.to/pausch