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 950→
SolPhoDeiTerVenJovSat
123456
78910111213
14151617181920
21222324252627
28
1 Hydra 950 2 Hydra 950 3 Hydra 950 4 Hydra 950 5 Hydra 950 6 Hydra 950 7 Hydra 950 8 Hydra 950 9 Hydra 950 10 Hydra 950 11 Hydra 950 12 Hydra 950 13 Hydra 950 14 Hydra 950 15 Hydra 950 16 Hydra 950 17 Hydra 950 18 Hydra 950 19 Hydra 950 20 Hydra 950 21 Hydra 950 22 Hydra 950 23 Hydra 950 24 Hydra 950 25 Hydra 950 26 Hydra 950 27 Hydra 950 28 Hydra 950 1 Corvus 950 8 May 3398 9 May 3398 10 May 3398 11 May 3398 12 May 3398 13 May 3398 14 May 3398 15 May 3398 16 May 3398 17 May 3398 18 May 3398 19 May 3398 20 May 3398 21 May 3398 22 May 3398 23 May 3398 24 May 3398 25 May 3398 26 May 3398 27 May 3398 28 May 3398 29 May 3398 30 May 3398 31 May 3398 1 June 3398 2 June 3398 3 June 3398 4 June 3398 5 June 3398 6 June 3398
MS 487775 MS 487776 MS 487777 MS 487778 MS 487779 MS 487780 MS 487781 MS 487782 MS 487783 MS 487784 MS 487785 MS 487786 MS 487787 MS 487788 MS 487789 MS 487790 MS 487791 MS 487792 MS 487793 MS 487794 MS 487795 MS 487796 MS 487797 MS 487798 MS 487799 MS 487800 MS 487801 MS 487802 MS 487803 MD 501314 MD 501315 MD 501316 MD 501317 MD 501318 MD 501319 MD 501320 MD 501321 MD 501322 MD 501323 MD 501324 MD 501325 MD 501326 MD 501327 MD 501328 MD 501329 MD 501330 MD 501331 MD 501332 MD 501333 MD 501334 MD 501335 MD 501336 MD 501337 MD 501338 MD 501339 MD 501340 MD 501341 MD 501342 MD 501343