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 151→
SolPhoDeiTerVenJovSat
1234
567891011
12131415161718
19202122232425
262728
1 Hydra 151 2 Hydra 151 3 Hydra 151 4 Hydra 151 5 Hydra 151 6 Hydra 151 7 Hydra 151 8 Hydra 151 9 Hydra 151 10 Hydra 151 11 Hydra 151 12 Hydra 151 13 Hydra 151 14 Hydra 151 15 Hydra 151 16 Hydra 151 17 Hydra 151 18 Hydra 151 19 Hydra 151 20 Hydra 151 21 Hydra 151 22 Hydra 151 23 Hydra 151 24 Hydra 151 25 Hydra 151 26 Hydra 151 27 Hydra 151 28 Hydra 151 1 Corvus 151 15 February 1895 16 February 1895 17 February 1895 18 February 1895 19 February 1895 20 February 1895 21 February 1895 22 February 1895 23 February 1895 24 February 1895 25 February 1895 26 February 1895 27 February 1895 28 February 1895 1 March 1895 2 March 1895 3 March 1895 4 March 1895 5 March 1895 6 March 1895 7 March 1895 8 March 1895 9 March 1895 10 March 1895 11 March 1895 12 March 1895 13 March 1895 14 March 1895 15 March 1895 16 March 1895
MS -46428 MS -46427 MS -46426 MS -46425 MS -46424 MS -46423 MS -46422 MS -46421 MS -46420 MS -46419 MS -46418 MS -46417 MS -46416 MS -46415 MS -46414 MS -46413 MS -46412 MS -46411 MS -46410 MS -46409 MS -46408 MS -46407 MS -46406 MS -46405 MS -46404 MS -46403 MS -46402 MS -46401 MS -46400 MD -47728 MD -47727 MD -47726 MD -47725 MD -47724 MD -47723 MD -47722 MD -47721 MD -47720 MD -47719 MD -47718 MD -47717 MD -47716 MD -47715 MD -47714 MD -47713 MD -47712 MD -47711 MD -47710 MD -47709 MD -47708 MD -47707 MD -47706 MD -47705 MD -47704 MD -47703 MD -47702 MD -47701 MD -47700 MD -47699