Octans is a winter constellation of the Southern Hemisphere,
circumpolar and highest in the skies in July and August (i.e. the Winter of the Southern Hemispere).
The constellation contains the South Pole Star, sigma Octantis.
To find the South Pole, first find alpha and beta Kentaurus (bright stars near the Southern Cross). Draw a perpendicular midway between these two stars. Then proceed to the Southern Cross, extending the major axis (beta--alpha line) through the skies, until it intercepts the first line you drew. Where these lines meet you will find - in the same general region at least - the South Pole.
To begin click on beta, then sigma Octantis.