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 1279→
SolPhoDeiTerVenJovSat
1
2345678
9101112131415
16171819202122
232425262728
1 Hydra 1279 2 Hydra 1279 3 Hydra 1279 4 Hydra 1279 5 Hydra 1279 6 Hydra 1279 7 Hydra 1279 8 Hydra 1279 9 Hydra 1279 10 Hydra 1279 11 Hydra 1279 12 Hydra 1279 13 Hydra 1279 14 Hydra 1279 15 Hydra 1279 16 Hydra 1279 17 Hydra 1279 18 Hydra 1279 19 Hydra 1279 20 Hydra 1279 21 Hydra 1279 22 Hydra 1279 23 Hydra 1279 24 Hydra 1279 25 Hydra 1279 26 Hydra 1279 27 Hydra 1279 28 Hydra 1279 1 Corvus 1279 30 April 4017 1 May 4017 2 May 4017 3 May 4017 4 May 4017 5 May 4017 6 May 4017 7 May 4017 8 May 4017 9 May 4017 10 May 4017 11 May 4017 12 May 4017 13 May 4017 14 May 4017 15 May 4017 16 May 4017 17 May 4017 18 May 4017 19 May 4017 20 May 4017 21 May 4017 22 May 4017 23 May 4017 24 May 4017 25 May 4017 26 May 4017 27 May 4017 28 May 4017
MS 707741 MS 707742 MS 707743 MS 707744 MS 707745 MS 707746 MS 707747 MS 707748 MS 707749 MS 707750 MS 707751 MS 707752 MS 707753 MS 707754 MS 707755 MS 707756 MS 707757 MS 707758 MS 707759 MS 707760 MS 707761 MS 707762 MS 707763 MS 707764 MS 707765 MS 707766 MS 707767 MS 707768 MS 707769 MD 727391 MD 727392 MD 727393 MD 727394 MD 727395 MD 727396 MD 727397 MD 727398 MD 727399 MD 727400 MD 727401 MD 727402 MD 727403 MD 727404 MD 727405 MD 727406 MD 727407 MD 727408 MD 727409 MD 727410 MD 727411 MD 727412 MD 727413 MD 727414 MD 727415 MD 727416 MD 727417 MD 727418 MD 727419