03/21/11 – Ephemeris – The constallation of Hydra
Monday, March 21st. The sun will rise at 7:44. It’ll be up for 12 hours and 11 minutes, setting at 7:55. The moon, 2 days past full, will rise at 11:00 this evening.
In the south and southeastern sky at 10 p.m. can be found the constellation of Hydra the water snake. Unlike the monster of the same name this Hydra has but one head, which is its most distinctive part. At 10 p.m. look to the south. The head of Hydra is located below a line from the constellation Leo the Lion in the southeast and Gemini high in the south. Hydra’s head is a small but distinctive group of 6 stars that make a drooping loop to the right. The rest of Hydra wends its way to the southeastern horizon, and eventually ends near the spring and summer transitional constellation of Libra the scales. Over the next few months Hydra will slither across the southern skies.
* Times are for the Traverse City/Interlochen area of Michigan. They may be different for your location.
Addendum
Hydra Rising. Created using Stellarium a free planetarium program.
Bob Moler's Ephemeris Blog 
Not too far south of Saturn you can find a little group of five or six stars that marks the head of Hydra the Water Snake one of those curving streams of stars which suggested a celestial serpent to the ancient imaginations. Hydra represents a female snake there is also a male snake named Hydrus that can be found curled in the far-southern sky. ..If you extend an imaginary line from Denebola to Regulus in Leo and extended it as far again beyond that will in Canis Minor can also be used as a guide for finding Hydra s head for it lies less than 10-degrees due east of Procyon your clinched fist held at arm s length measures roughly 10-degrees .