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 -717→
SolPhoDeiTerVenJovSat
1234
567891011
12131415161718
19202122232425
262728
1 Hydra -717 2 Hydra -717 3 Hydra -717 4 Hydra -717 5 Hydra -717 6 Hydra -717 7 Hydra -717 8 Hydra -717 9 Hydra -717 10 Hydra -717 11 Hydra -717 12 Hydra -717 13 Hydra -717 14 Hydra -717 15 Hydra -717 16 Hydra -717 17 Hydra -717 18 Hydra -717 19 Hydra -717 20 Hydra -717 21 Hydra -717 22 Hydra -717 23 Hydra -717 24 Hydra -717 25 Hydra -717 26 Hydra -717 27 Hydra -717 28 Hydra -717 2 Centaurus -716 26 February 0262 27 February 0262 28 February 0262 1 March 0262 2 March 0262 3 March 0262 4 March 0262 5 March 0262 6 March 0262 7 March 0262 8 March 0262 9 March 0262 10 March 0262 11 March 0262 12 March 0262 13 March 0262 14 March 0262 15 March 0262 16 March 0262 17 March 0262 18 March 0262 19 March 0262 20 March 0262 21 March 0262 22 March 0262 23 March 0262 24 March 0262 25 March 0262
MS -626739 MS -626740 MS -626741 MS -626742 MS -626743 MS -626744 MS -626745 MS -626746 MS -626747 MS -626748 MS -626749 MS -626750 MS -626751 MS -626752 MS -626753 MS -626754 MS -626755 MS -626756 MS -626757 MS -626758 MS -626759 MS -626760 MS -626761 MS -626762 MS -626763 MS -626764 MS -626765 MS -626766 MS -626712 MD -644158 MD -644157 MD -644156 MD -644155 MD -644154 MD -644153 MD -644152 MD -644151 MD -644150 MD -644149 MD -644148 MD -644147 MD -644146 MD -644145 MD -644144 MD -644143 MD -644142 MD -644141 MD -644140 MD -644139 MD -644138 MD -644137 MD -644136 MD -644135 MD -644134 MD -644133 MD -644132 MD -644131