Page 23 - Astronomy Book 1

Now we look at Stars all of which are in our Galaxy

At first glance stars look very similar. Yes, they obviously vary in brighness but not so obviously they have differend colours and even more
surprising is that over 60% are infact double, triple or multiple stars which to the naked eye and smaller telescopes look like a single star.
Stars have been grouped by us over the centuries into large patterns we call constallations. My favourite constellation is Orion but Cygnus
and Cassiopia are not far behind. .

CASSIOPEIA

With a larger telescopes many
multiple stars can be resolved into
their individual components like the
double star above Albireo in Cygnus ORION

with has lovely orange and blue
component stars. .

CYGNUS

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