Hi everybody, have a look at these remarkable images taken by our webmaster M. Rudolf. Further additions (other geosats, variable stars) to come soon in the gallery of http://www.eurastro.de Manfred Rudolf schrieb: > Hi all, > > Sure you have already heard about the Astra telecommunication > satellites; perhaps you even receive radio and TV programs from Astra > with your satellite dish. Then you might be interested to see images of > the geosynchronous Astra satellites which I shot last night: > > The first image shows seven Astra satellites (as far as I know they are > Astra 1B,1C,1E,1F,1G,1H,1K) as pointlike objects against the night > sky. The streaks in the image are the trails of stars which have moved > during this 15-second exposure. > > The second image was shot with the camera following the movement of the > stars, therefore the satellites appear as short trails whereas the stars > remain pointlike. > > If you receive your favorite TV/radio programs from Eutelsat - Hot Bird, > have a look at the third image: it shows the Hotbird 1-5 satellites. > > The Astras as well as the Hotbirds are in a geostationary orbit in a > distance of ca. 36000 kms, straight above the terrestrial equator and at > a longitude 19° east (Astra), or 13° east (Hotbird). > > The images have been obtained with a CCD camera and a lens with 900 mm > focal length. Exposure time was 15 seconds. The images cover a field of > approximately 45x30 arcminutes. > > regards, manfred > > ------------------------------------------------------------------------ > [Image] [Image] [Image] ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org http://www.satellite.eu.org/seesat/seesatindex.html
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