Apus - the Bird of Paradise - Circumpolar
southern hemisphere
Another
small faint constellation and a constellation that is not visible for
Britain. Apus the bird of paradise was introduced to the sky in the
1590s by the Dutch astronomer and cartographer Petrus Plancius from
the observations of Dutch navigators Pieter Keyser and Frederick
Houtman, when they voyaged to the southern hemisphere. and first
catalogued by Plancius in the late 16th century.
The
name of the constellation is derived from the Greek word apous, which
means “footless.” (Birds of paradise were at one point in history
believed to lack feet). The Greater Bird of Paradise known in India
had a magnificent white, yellow and red plumage but unsightly legs,
which were cut off by the natives desiring to offer the white man
only the attractive part of the bird. There are no myths associated
with the constellation.
It
is located near the south pole star, there are no bright stars in
Apus, the brightest are αlpha Apodis has a visual magnitude of 3.8,
it is a K class giant star which is cooler than our Sun. Alpha
Apodis is approximately 410 light years distant.
The
second brightest star, Gamma Apodis has a visual magnitude of 3.9. It
is a yellow G-type giant star slightly cooler than the Sun, it is
approximately 160 light years distant.
Here
is an example where the brightest stars do not follow the order of
the Greek alphabet, with beta at magnitude 4.2 being fainter than
gamma.
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