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 1060→
SolPhoDeiTerVenJovSat
123
45678910
11121314151617
18192021222324
25262728
1 Hydra 1060 2 Hydra 1060 3 Hydra 1060 4 Hydra 1060 5 Hydra 1060 6 Hydra 1060 7 Hydra 1060 8 Hydra 1060 9 Hydra 1060 10 Hydra 1060 11 Hydra 1060 12 Hydra 1060 13 Hydra 1060 14 Hydra 1060 15 Hydra 1060 16 Hydra 1060 17 Hydra 1060 18 Hydra 1060 19 Hydra 1060 20 Hydra 1060 21 Hydra 1060 22 Hydra 1060 23 Hydra 1060 24 Hydra 1060 25 Hydra 1060 26 Hydra 1060 27 Hydra 1060 28 Hydra 1060 1 Corvus 1060 21 April 3605 22 April 3605 23 April 3605 24 April 3605 25 April 3605 26 April 3605 27 April 3605 28 April 3605 29 April 3605 30 April 3605 1 May 3605 2 May 3605 3 May 3605 4 May 3605 5 May 3605 6 May 3605 7 May 3605 8 May 3605 9 May 3605 10 May 3605 11 May 3605 12 May 3605 13 May 3605 14 May 3605 15 May 3605 16 May 3605 17 May 3605 18 May 3605 19 May 3605 20 May 3605
MS 561320 MS 561321 MS 561322 MS 561323 MS 561324 MS 561325 MS 561326 MS 561327 MS 561328 MS 561329 MS 561330 MS 561331 MS 561332 MS 561333 MS 561334 MS 561335 MS 561336 MS 561337 MS 561338 MS 561339 MS 561340 MS 561341 MS 561342 MS 561343 MS 561344 MS 561345 MS 561346 MS 561347 MS 561348 MD 576902 MD 576903 MD 576904 MD 576905 MD 576906 MD 576907 MD 576908 MD 576909 MD 576910 MD 576911 MD 576912 MD 576913 MD 576914 MD 576915 MD 576916 MD 576917 MD 576918 MD 576919 MD 576920 MD 576921 MD 576922 MD 576923 MD 576924 MD 576925 MD 576926 MD 576927 MD 576928 MD 576929 MD 576930 MD 576931