Required Characteristics.

1. To be intepented from camera and telescope equipment. This will allow us actually to measure seeing everywhere, using standard amature equipment.
2. Adequacy of Astronomical Equipment: A telescope, both refractor or reflector at least 6 inch wide, with motor drive for the hour angle and a CCD camera (and NOT a Web-Cam, various Digital Cameras, single frames from Video-Cams etc) is to be considered as adequate astronomical equipment. Variations from the above mentioned equipment (especially Web-Cams) are currently being tested to find out if they can be used in this project. Finally, a special mask (cardboard-made or plastic), which anyone can make, and of course a PC are also needed.
3. Because the data reduction requires special software, which has been written in the Observatory for this specific purpose, the data send by each amateur astronomer should have some consistency, thus limiting the error possibility and enabling the software to run without problems.