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 861→
SolPhoDeiTerVenJovSat
123
45678910
11121314151617
18192021222324
25262728
1 Hydra 861 2 Hydra 861 3 Hydra 861 4 Hydra 861 5 Hydra 861 6 Hydra 861 7 Hydra 861 8 Hydra 861 9 Hydra 861 10 Hydra 861 11 Hydra 861 12 Hydra 861 13 Hydra 861 14 Hydra 861 15 Hydra 861 16 Hydra 861 17 Hydra 861 18 Hydra 861 19 Hydra 861 20 Hydra 861 21 Hydra 861 22 Hydra 861 23 Hydra 861 24 Hydra 861 25 Hydra 861 26 Hydra 861 27 Hydra 861 28 Hydra 861 1 Corvus 861 28 November 3230 29 November 3230 30 November 3230 1 December 3230 2 December 3230 3 December 3230 4 December 3230 5 December 3230 6 December 3230 7 December 3230 8 December 3230 9 December 3230 10 December 3230 11 December 3230 12 December 3230 13 December 3230 14 December 3230 15 December 3230 16 December 3230 17 December 3230 18 December 3230 19 December 3230 20 December 3230 21 December 3230 22 December 3230 23 December 3230 24 December 3230 25 December 3230 26 December 3230 27 December 3230
MS 428271 MS 428272 MS 428273 MS 428274 MS 428275 MS 428276 MS 428277 MS 428278 MS 428279 MS 428280 MS 428281 MS 428282 MS 428283 MS 428284 MS 428285 MS 428286 MS 428287 MS 428288 MS 428289 MS 428290 MS 428291 MS 428292 MS 428293 MS 428294 MS 428295 MS 428296 MS 428297 MS 428298 MS 428299 MD 440157 MD 440158 MD 440159 MD 440160 MD 440161 MD 440162 MD 440163 MD 440164 MD 440165 MD 440166 MD 440167 MD 440168 MD 440169 MD 440170 MD 440171 MD 440172 MD 440173 MD 440174 MD 440175 MD 440176 MD 440177 MD 440178 MD 440179 MD 440180 MD 440181 MD 440182 MD 440183 MD 440184 MD 440185 MD 440186