Evening sky in November 2006

Many African people kept a calendar by looking for the rising of Isilemela (a distinct cluster of stars) in the early morning sky. This, however, took place in June, not November. But now that it is November, we can see the same cluster rising above the north-eastern horizon in the evening sky - just as it was in the early morning in June.

Isilemela - the Pleiades in the constellation of Taurus - is one of the nearest clusters to our Solar System. Even so, it is about 440 light years away (that is how long it has taken for its light to reach us), and the six or seven stars visible to the naked eye are simply the most luminous of many hundreds in the cluster.

Otherwise, this November's evening sky is surprisingly 'quiet'. None of the visible planets are in the evening sky and the best known constellations (Orion, Southern Cross and Scorpius) are all - like Isilemela - rather low on the horizon.

The Moon is in the evening sky until November 6 and after November 22.