"John locker" <satcom@cybase.co.uk> wrote: >On a similar line , has anyone tried to image geosats during the solar >outage period ? >Over Europe we have a 7 sat constelltion (Astra 19.2 ) which during outage >would be grouped on the suns disc. There are other 4 or 5 sat groups in the >arc which would serve the same purpose. > >Would it be possible to project a large image of the sun and identify these >craft ?....just a thought ! No, it would not be possible. At that distance the satellites are by far too small. Even satellites in low earth orbit, which would be at a distance of 1000 to 2000 km from the observer, cannot be seen because the image would be wiped out by atmospheric turbulence. In this respect, it is interesting to see photographs taken of Mercury transits across the Sun. Such images have been published in SKY & TELESCOPE on several occasions. Perhaps, and I stress *perhaps*, it is possible to see such transits across the moon. To my knowledge, no *verifiable* observation has ever been made. Bruno Tilgner ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org http://www2.satellite.eu.org/seesat/seesatindex.html
This archive was generated by hypermail 2b29 : Fri Jan 26 2001 - 12:26:08 PST