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 -894→
SolPhoDeiTerVenJovSat
1234
567891011
12131415161718
19202122232425
262728
1 Hydra -894 2 Hydra -894 3 Hydra -894 4 Hydra -894 5 Hydra -894 6 Hydra -894 7 Hydra -894 8 Hydra -894 9 Hydra -894 10 Hydra -894 11 Hydra -894 12 Hydra -894 13 Hydra -894 14 Hydra -894 15 Hydra -894 16 Hydra -894 17 Hydra -894 18 Hydra -894 19 Hydra -894 20 Hydra -894 21 Hydra -894 22 Hydra -894 23 Hydra -894 24 Hydra -894 25 Hydra -894 26 Hydra -894 27 Hydra -894 28 Hydra -894 2 Centaurus -893 23 February -0071 24 February -0071 25 February -0071 26 February -0071 27 February -0071 28 February -0071 1 March -0071 2 March -0071 3 March -0071 4 March -0071 5 March -0071 6 March -0071 7 March -0071 8 March -0071 9 March -0071 10 March -0071 11 March -0071 12 March -0071 13 March -0071 14 March -0071 15 March -0071 16 March -0071 17 March -0071 18 March -0071 19 March -0071 20 March -0071 21 March -0071 22 March -0071 23 March -0071
MS -745080 MS -745081 MS -745082 MS -745083 MS -745084 MS -745085 MS -745086 MS -745087 MS -745088 MS -745089 MS -745090 MS -745091 MS -745092 MS -745093 MS -745094 MS -745095 MS -745096 MS -745097 MS -745098 MS -745099 MS -745100 MS -745101 MS -745102 MS -745103 MS -745104 MS -745105 MS -745106 MS -745107 MS -745053 MD -765787 MD -765786 MD -765785 MD -765784 MD -765783 MD -765782 MD -765781 MD -765780 MD -765779 MD -765778 MD -765777 MD -765776 MD -765775 MD -765774 MD -765773 MD -765772 MD -765771 MD -765770 MD -765769 MD -765768 MD -765767 MD -765766 MD -765765 MD -765764 MD -765763 MD -765762 MD -765761 MD -765760 MD -765759