IAU and Sky & Telescope magazine (Roger Sinnott & Rick Fienberg)
Hydra
The Hydra
OriginAncient
AbbreviationHya
GenitiveHydrae
Pronunciation/ˈhaɪdrə/ genitive /ˈhaɪdriː/
HIGH-druh
LocationCelestial Equator
Primary StarAlphard (α Hya)
Right Ascention 9h 28m Declination -8° 40'
Martian Solar Lag δ(🜨→♂) +0.272 h (16.3 min)
Hydra represents the Lernaean Hydra, a reptilian monster so vile that even its breath and blood were highly poisonous. It had nine serpent heads, eight mortal and one immortal. Every time one was cut off two would grow in its place. Defeating the Lernaean Hydra was the second labor assigned to Hercules by King Eurystheus. In the marshes of Lerna, Hercules drew out the Hydra from its lair, and with his mighty club, bashed one of its heads in. In its place, two heads sprouted, just as mean and deadly as the original. He realized he would need to take a different approach. He had his nephew Iolaus quickly cauterize each stump after it was bashed in. This prevented the heads from growing back. Hercules did this with each of the mortal heads. He struck off the immortal head and buried it deep in the ground and placed a huge rock on top of it. With his second labor complete, he dipped the tips of his arrows into the blood of the Hydra, covering them with deadly poison. In a second myth involving Hydra, this constellation represents the snake that Corvus used in a lie to Apollo.
www.underthesky.com
Hydra as depicted by Johann Bayer in his Uranometria (1603). Source image provided by www.RareMaps.com — Barry Lawrence Ruderman Antique Maps Inc. Via www.underthenightsky.com.
←Hydra 682→
SolPhoDeiTerVenJovSat
1
2345678
9101112131415
16171819202122
232425262728
1 Hydra 682 2 Hydra 682 3 Hydra 682 4 Hydra 682 5 Hydra 682 6 Hydra 682 7 Hydra 682 8 Hydra 682 9 Hydra 682 10 Hydra 682 11 Hydra 682 12 Hydra 682 13 Hydra 682 14 Hydra 682 15 Hydra 682 16 Hydra 682 17 Hydra 682 18 Hydra 682 19 Hydra 682 20 Hydra 682 21 Hydra 682 22 Hydra 682 23 Hydra 682 24 Hydra 682 25 Hydra 682 26 Hydra 682 27 Hydra 682 28 Hydra 682 1 Corvus 682 21 February 2894 22 February 2894 23 February 2894 24 February 2894 25 February 2894 26 February 2894 27 February 2894 28 February 2894 1 March 2894 2 March 2894 3 March 2894 4 March 2894 5 March 2894 6 March 2894 7 March 2894 8 March 2894 9 March 2894 10 March 2894 11 March 2894 12 March 2894 13 March 2894 14 March 2894 15 March 2894 16 March 2894 17 March 2894 18 March 2894 19 March 2894 20 March 2894 21 March 2894 22 March 2894
MS 308594 MS 308595 MS 308596 MS 308597 MS 308598 MS 308599 MS 308600 MS 308601 MS 308602 MS 308603 MS 308604 MS 308605 MS 308606 MS 308607 MS 308608 MS 308609 MS 308610 MS 308611 MS 308612 MS 308613 MS 308614 MS 308615 MS 308616 MS 308617 MS 308618 MS 308619 MS 308620 MS 308621 MS 308622 MD 317156 MD 317157 MD 317158 MD 317159 MD 317160 MD 317161 MD 317162 MD 317163 MD 317164 MD 317165 MD 317166 MD 317167 MD 317168 MD 317169 MD 317170 MD 317171 MD 317172 MD 317173 MD 317174 MD 317175 MD 317176 MD 317177 MD 317178 MD 317179 MD 317180 MD 317181 MD 317182 MD 317183 MD 317184 MD 317185