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 1226→
SolPhoDeiTerVenJovSat
12
3456789
10111213141516
17181920212223
2425262728
1 Hydra 1226 2 Hydra 1226 3 Hydra 1226 4 Hydra 1226 5 Hydra 1226 6 Hydra 1226 7 Hydra 1226 8 Hydra 1226 9 Hydra 1226 10 Hydra 1226 11 Hydra 1226 12 Hydra 1226 13 Hydra 1226 14 Hydra 1226 15 Hydra 1226 16 Hydra 1226 17 Hydra 1226 18 Hydra 1226 19 Hydra 1226 20 Hydra 1226 21 Hydra 1226 22 Hydra 1226 23 Hydra 1226 24 Hydra 1226 25 Hydra 1226 26 Hydra 1226 27 Hydra 1226 28 Hydra 1226 1 Corvus 1226 13 August 3917 14 August 3917 15 August 3917 16 August 3917 17 August 3917 18 August 3917 19 August 3917 20 August 3917 21 August 3917 22 August 3917 23 August 3917 24 August 3917 25 August 3917 26 August 3917 27 August 3917 28 August 3917 29 August 3917 30 August 3917 31 August 3917 1 September 3917 2 September 3917 3 September 3917 4 September 3917 5 September 3917 6 September 3917 7 September 3917 8 September 3917 9 September 3917 10 September 3917 11 September 3917
MS 672306 MS 672307 MS 672308 MS 672309 MS 672310 MS 672311 MS 672312 MS 672313 MS 672314 MS 672315 MS 672316 MS 672317 MS 672318 MS 672319 MS 672320 MS 672321 MS 672322 MS 672323 MS 672324 MS 672325 MS 672326 MS 672327 MS 672328 MS 672329 MS 672330 MS 672331 MS 672332 MS 672333 MS 672334 MD 690971 MD 690972 MD 690973 MD 690974 MD 690975 MD 690976 MD 690977 MD 690978 MD 690979 MD 690980 MD 690981 MD 690982 MD 690983 MD 690984 MD 690985 MD 690986 MD 690987 MD 690988 MD 690989 MD 690990 MD 690991 MD 690992 MD 690993 MD 690994 MD 690995 MD 690996 MD 690997 MD 690998 MD 690999 MD 691000