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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