Re: Starry Night Pro question


"Carsten A. Arnholm" <arnholm@xxxxxxxxxx> ha scritto nel messaggio
news:fzyce.8290$ai7.199654@xxxxxxxxxxxxxxxxx
>
> Thanks, I understand what you mean, but I was hoping for something more
> automatic. Essentially, the program should calculate the angular distance
> between the Sun and each satellite in its database and classify it as a
> transit event when the distance is less than a certain angle tolerance,
> and the sun is still above the horizon. Over a some days or weeks there
> should be a few such events I imagine, and these might for example be
> listed in a timetable.
Carsten, I did think a little bit more (dining room is now full of deep
smoke...) and googled too. It seems that satellite sun transits are common
and predictable at least by broadcasting companies who call them "Sun
outages". It means that communications are disturbed when the satellite is
crossing or transiting the Sun disk. Thus several websites offer the
possibility to check when said outages could occur. From our point of view
(astro-amateur) this represents the opportunity to track and record those
transits.
Following is a non-exaustive list of webpages dealing with imaging ISS and
other man-made things transiting the Sun. Hope it could help.
http://www.sat-net.com/winorbit/
http://www.telesat.ca/satellites/sun-transit-preditcs.htm#top
http://iss-transit.sourceforge.net/
http://celestrak.com/columns/v03n03/

Clear skies,

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