Pyxis

English name	Compass
Major stars	No star of the constellation exceeds the magnitude 3,5.
Description	Weak constellation of the southern hemisphere, to the north of Vela and to the east of Puppis. Its brightest stars are of fourth magnitude. The only interesting object is T Pyxidis, a recurrent nova: it is normally of fourteenth magnitude, but sometimes it unexpectedly increases its brightness up to reach the magnitude 6. Eruptions were recorded in the years 1890, 1902, 1920, 1944 and 1966: it is probable therefore that in the future there will be other phenomena.
Mythology and history	The constellation was drawn by Nicolas Louis de La Caille in 1756. It represents the magnetic compass used by the sailors.

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