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 1094→
SolPhoDeiTerVenJovSat
123456
78910111213
14151617181920
21222324252627
28
1 Hydra 1094 2 Hydra 1094 3 Hydra 1094 4 Hydra 1094 5 Hydra 1094 6 Hydra 1094 7 Hydra 1094 8 Hydra 1094 9 Hydra 1094 10 Hydra 1094 11 Hydra 1094 12 Hydra 1094 13 Hydra 1094 14 Hydra 1094 15 Hydra 1094 16 Hydra 1094 17 Hydra 1094 18 Hydra 1094 19 Hydra 1094 20 Hydra 1094 21 Hydra 1094 22 Hydra 1094 23 Hydra 1094 24 Hydra 1094 25 Hydra 1094 26 Hydra 1094 27 Hydra 1094 28 Hydra 1094 1 Corvus 1094 10 April 3669 11 April 3669 12 April 3669 13 April 3669 14 April 3669 15 April 3669 16 April 3669 17 April 3669 18 April 3669 19 April 3669 20 April 3669 21 April 3669 22 April 3669 23 April 3669 24 April 3669 25 April 3669 26 April 3669 27 April 3669 28 April 3669 29 April 3669 30 April 3669 1 May 3669 2 May 3669 3 May 3669 4 May 3669 5 May 3669 6 May 3669 7 May 3669 8 May 3669 9 May 3669
MS 584053 MS 584054 MS 584055 MS 584056 MS 584057 MS 584058 MS 584059 MS 584060 MS 584061 MS 584062 MS 584063 MS 584064 MS 584065 MS 584066 MS 584067 MS 584068 MS 584069 MS 584070 MS 584071 MS 584072 MS 584073 MS 584074 MS 584075 MS 584076 MS 584077 MS 584078 MS 584079 MS 584080 MS 584081 MD 600267 MD 600268 MD 600269 MD 600270 MD 600271 MD 600272 MD 600273 MD 600274 MD 600275 MD 600276 MD 600277 MD 600278 MD 600279 MD 600280 MD 600281 MD 600282 MD 600283 MD 600284 MD 600285 MD 600286 MD 600287 MD 600288 MD 600289 MD 600290 MD 600291 MD 600292 MD 600293 MD 600294 MD 600295 MD 600296