The HOlomon
Variable Star Survey (HOVASS) is currently the main
scientific project carried out. As its name suggests, HOVASS
is a project designed to search for new variable stars, with emphasis in
crowded fields such as globular and open clusters. This is achieved through
wide field observations -- FOV 3 x 1.5 degrees -- of
selected regions of the sky.
HOVASS utilizes
quite simple equipment consisting of the SBIG ST-7 CCD camera and a Nikon 180mm telephoto lens. The camera is
piggyback mounted on the LX200 telescope, used for accurate tracking for the 1
min exposures, which yield an effective working star magnitude of about 12.
Possible candidates, found through the wide field observations, are then photometrically followed-up with the LX200.
The NEMESIS software, developed by the group
of students conducting the project, is employed for the data reduction.
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Last update: Aug 30 10:38:00 EET 2006 |