06 September 2012

ABAA NEWS: Celestial co-ordinate system discussion

As monsoon is covering the skies, ABAA members are spending time in discussing astronomy topics and helping newcomers in understanding basic concepts in astronomy. I am updating couple of such activities at ABAA from past few weeks.

Celestial co-ordinate system discussion:

Members discussed on the celestial sphere and co ordinate systems in astronomy, getting better understanding on different types of co ordinate systems. In Equatorial Coordinate System how the declination circle is defined, the zero declination circle is projection of earth's equator. Members discussed on Right Ascension(RA) on how first point of Aries is defined and where the actual first point lies now due to earth's precession. Here are few photos of the session

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