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 1266→
SolPhoDeiTerVenJovSat
12345
6789101112
13141516171819
20212223242526
2728
1 Hydra 1266 2 Hydra 1266 3 Hydra 1266 4 Hydra 1266 5 Hydra 1266 6 Hydra 1266 7 Hydra 1266 8 Hydra 1266 9 Hydra 1266 10 Hydra 1266 11 Hydra 1266 12 Hydra 1266 13 Hydra 1266 14 Hydra 1266 15 Hydra 1266 16 Hydra 1266 17 Hydra 1266 18 Hydra 1266 19 Hydra 1266 20 Hydra 1266 21 Hydra 1266 22 Hydra 1266 23 Hydra 1266 24 Hydra 1266 25 Hydra 1266 26 Hydra 1266 27 Hydra 1266 28 Hydra 1266 1 Corvus 1266 14 November 3992 15 November 3992 16 November 3992 17 November 3992 18 November 3992 19 November 3992 20 November 3992 21 November 3992 22 November 3992 23 November 3992 24 November 3992 25 November 3992 26 November 3992 27 November 3992 28 November 3992 29 November 3992 30 November 3992 1 December 3992 2 December 3992 3 December 3992 4 December 3992 5 December 3992 6 December 3992 7 December 3992 8 December 3992 9 December 3992 10 December 3992 11 December 3992 12 December 3992 13 December 3992
MS 699050 MS 699051 MS 699052 MS 699053 MS 699054 MS 699055 MS 699056 MS 699057 MS 699058 MS 699059 MS 699060 MS 699061 MS 699062 MS 699063 MS 699064 MS 699065 MS 699066 MS 699067 MS 699068 MS 699069 MS 699070 MS 699071 MS 699072 MS 699073 MS 699074 MS 699075 MS 699076 MS 699077 MS 699078 MD 718458 MD 718459 MD 718460 MD 718461 MD 718462 MD 718463 MD 718464 MD 718465 MD 718466 MD 718467 MD 718468 MD 718469 MD 718470 MD 718471 MD 718472 MD 718473 MD 718474 MD 718475 MD 718476 MD 718477 MD 718478 MD 718479 MD 718480 MD 718481 MD 718482 MD 718483 MD 718484 MD 718485 MD 718486 MD 718487