All About Space Astronomer Book - 2014 UK

(Frankie) #1

AUTUMN (SOUTHERN HEMISPHERE)


Autumn skies are brilliant in the southern hemisphere. Centaurus, with
the Southern Cross is very close to the zenith. Adjoining the Centaur we
have first of all the Scorpion, with its long line of bright stars, including
Antares, and then in the east are the star clouds of Sagittarius. On a dark
autumn night these clouds are truly superb, and the shadows they can
cast from really dark sky sites are quite distinctive.

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part of the sky Carina dominates with Canopus still at a respectable altitude,
though we have lost Sirius.
This is a particularly good time to look at the two best double stars in
the sky – Alpha Centauri and Alpha Crucis. Do not forget the erratic variable
Eta Carinae, which could flare up again at any moment and so this is
always worth following. One prominent feature of the autumn sky is Corvus,
the Crow or Raven. Its four main stars are little brighter than the third

Of course these clouds mask our view of the centre of the Galaxy, an
intensely interesting region which has to be studied by indirect means.
Sweeping round Sagittarius with a pair of binoculars or a wide-field
telescope is very rewarding, and this is arguably the richest area in the whole
of the sky. Very low in the west Achenar can probably be made out, but it
is not far above the horizon and any mist will obscure it. This makes the
location of the south celestial pole considerably more difficult. In the western

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