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Holding regular sessions of sky watching through telescopes at the Observation Centre at Dhakuria, Kolkata on every Saturday evening.popular discussions on different topics of interest related to Astronomy and Astrophysics on Saturday evenings closest to full moons.

Full Moon Lecture, July 2008



INVITED LECTURE

12 July 2008

6:00 pm

At: SWA, Dhakuria

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Topic:

GRAVITATIONAL WAVES

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By

Shaon Ghosh

Washington State University

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Synopsis: In physics, a gravitational wave is a fluctuation in the curvature of spacetime which propagates as a wave, traveling outward from a moving object or system of objects. Gravitational radiation is the energy transported by these waves. Important examples of systems which emit gravitational waves are binary star systems, where the two stars in the binary are white dwarfs, neutron stars, or black holes.

Carrying out serious observational activities hand-in-hand with the international community of amateur astronomers on Occultations, Sunspots and Solar Activity and Variable Stars.

Observation of the Sunspots and Solar Activities is carried out through the Solar Division of the Association and Variable Star Observations are carried out through the Variable Star Division of the Association.