Proxima Centauri.
M83, also known as the Southern Pinwheel Galaxy
18 is the stars of the constellation hydra
A constellation is NOT a galaxy.
LHS 3003 is the closest star to earth from constellation hydra.( 20.67 light years away )
ESO 510-G13 is a spiral galaxy approximately 150 million light-years away in the constellation Hydra See:- http://en.wikipedia.org/wiki/File:Warped_galaxy.jpg
127
the northern hemisphere
Hydra
In Greek mythology, the Hydra was a serpent-like creature slain by the hero Hercules as one of his Twelve Labors. After its defeat, the Hydra was placed in the sky as a constellation to honor the mythological tale of Hercules' triumph over the beast.
One constellation that begins with the letter H is Hydra. Hydra is the largest constellation in the sky and is often associated with a serpent in Greek mythology. It is visible in the Southern Hemisphere during certain times of the year.
The largest constellation in the sky is Hydra, covering over 1,300 square degrees of the night sky. Hydra is a long and winding constellation that stretches through a large portion of the southern celestial hemisphere.
Alphard