Constellations are memorable maps to the stars, dating back many thousands of years.

Many of the constellations are associated with the Gods and Godesses of ancient Greek mythology.

The International Astronomical Union (IAU) has divided the sky into 88 official constellations with exact boundaries, so that every direction or location in the sky belongs to one constellation. Astronomers use this as a rough guideline for location objects, e.g. when they say that Mars is in the constellation of Gemini, it can be found within the borders of the constellation. The constellations that the Sun pass through each year are known as the Zodiac.

Serpens

The Serpent

Among the modern constellations it is unique in being split into two pieces, Serpens Caput (representing the head of the snake) to the west and Serpens Cauda (representing the tail) to the east. Between these two pieces lies the constellation of Ophiuchus, the serpent holder.

Serpens Mythology

Serpens is the snake being grasped by Ophiuchus, the Snake-Handler, and is thus very closely associated with it. Both were listed as constellations by Ptolemy. Originally, Serpens and Ophiuchus were considered a single Snake-Holder constellation, out of which developed an associated myth of the founding of medicine.

Further Information

Only one of the stars in Serpens is brighter than third magnitude, so the constellation is not easy to perceive. α Serpentis, named Unukalhai, is in the head part. δ Serpentis, also in the head, is a double star 210 light-years from Earth. θ Serpentis, in the tail, is also double.

Serpens Photographs

Sorry, I have no photographs of this constellation yet.