At ABAA, we try to make concepts of astronomy simple so that
everyone can visualise and understand. This setup I made at ABAA using materials
that we can find easily and we can build this at very low cost and fast. The setup
is to show occultation concept, consists of a motor, a light source that acts
as a star and a dick attached to motor to show an object coming in front of the
star, Occulting the star.
Moon Occulting Venus
Moon Occulting Venus
Occultation is an astronomical event when one astronomical
object comes between observer and a distant object. For example, moon in its
journey in the night sky comes in between background stars and us, this we call
moon is occulting stars.
I made the video with external lights on and off, to show
the setup working. With lights on, we can see the disk coming in front of the
light source and Occulting the Star and with lights turned off we can simulate
night sky and we can measure star light disappearing and re appearing. Using different
sizes of disc, we can show that occultation helps in determining the size and
shape of an object using the time of appearance and disappearance to the star.
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