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 768→
SolPhoDeiTerVenJovSat
1
2345678
9101112131415
16171819202122
232425262728
1 Hydra 768 2 Hydra 768 3 Hydra 768 4 Hydra 768 5 Hydra 768 6 Hydra 768 7 Hydra 768 8 Hydra 768 9 Hydra 768 10 Hydra 768 11 Hydra 768 12 Hydra 768 13 Hydra 768 14 Hydra 768 15 Hydra 768 16 Hydra 768 17 Hydra 768 18 Hydra 768 19 Hydra 768 20 Hydra 768 21 Hydra 768 22 Hydra 768 23 Hydra 768 24 Hydra 768 25 Hydra 768 26 Hydra 768 27 Hydra 768 28 Hydra 768 1 Corvus 768 10 December 3055 11 December 3055 12 December 3055 13 December 3055 14 December 3055 15 December 3055 16 December 3055 17 December 3055 18 December 3055 19 December 3055 20 December 3055 21 December 3055 22 December 3055 23 December 3055 24 December 3055 25 December 3055 26 December 3055 27 December 3055 28 December 3055 29 December 3055 30 December 3055 31 December 3055 1 January 3056 2 January 3056 3 January 3056 4 January 3056 5 January 3056 6 January 3056 7 January 3056 8 January 3056
MS 366092 MS 366093 MS 366094 MS 366095 MS 366096 MS 366097 MS 366098 MS 366099 MS 366100 MS 366101 MS 366102 MS 366103 MS 366104 MS 366105 MS 366106 MS 366107 MS 366108 MS 366109 MS 366110 MS 366111 MS 366112 MS 366113 MS 366114 MS 366115 MS 366116 MS 366117 MS 366118 MS 366119 MS 366120 MD 376251 MD 376252 MD 376253 MD 376254 MD 376255 MD 376256 MD 376257 MD 376258 MD 376259 MD 376260 MD 376261 MD 376262 MD 376263 MD 376264 MD 376265 MD 376266 MD 376267 MD 376268 MD 376269 MD 376270 MD 376271 MD 376272 MD 376273 MD 376274 MD 376275 MD 376276 MD 376277 MD 376278 MD 376279 MD 376280