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 665→
SolPhoDeiTerVenJovSat
1234567
891011121314
15161718192021
22232425262728
1 Hydra 665 2 Hydra 665 3 Hydra 665 4 Hydra 665 5 Hydra 665 6 Hydra 665 7 Hydra 665 8 Hydra 665 9 Hydra 665 10 Hydra 665 11 Hydra 665 12 Hydra 665 13 Hydra 665 14 Hydra 665 15 Hydra 665 16 Hydra 665 17 Hydra 665 18 Hydra 665 19 Hydra 665 20 Hydra 665 21 Hydra 665 22 Hydra 665 23 Hydra 665 24 Hydra 665 25 Hydra 665 26 Hydra 665 27 Hydra 665 28 Hydra 665 1 Corvus 665 26 February 2862 27 February 2862 28 February 2862 1 March 2862 2 March 2862 3 March 2862 4 March 2862 5 March 2862 6 March 2862 7 March 2862 8 March 2862 9 March 2862 10 March 2862 11 March 2862 12 March 2862 13 March 2862 14 March 2862 15 March 2862 16 March 2862 17 March 2862 18 March 2862 19 March 2862 20 March 2862 21 March 2862 22 March 2862 23 March 2862 24 March 2862 25 March 2862 26 March 2862 27 March 2862
MS 297227 MS 297228 MS 297229 MS 297230 MS 297231 MS 297232 MS 297233 MS 297234 MS 297235 MS 297236 MS 297237 MS 297238 MS 297239 MS 297240 MS 297241 MS 297242 MS 297243 MS 297244 MS 297245 MS 297246 MS 297247 MS 297248 MS 297249 MS 297250 MS 297251 MS 297252 MS 297253 MS 297254 MS 297255 MD 305473 MD 305474 MD 305475 MD 305476 MD 305477 MD 305478 MD 305479 MD 305480 MD 305481 MD 305482 MD 305483 MD 305484 MD 305485 MD 305486 MD 305487 MD 305488 MD 305489 MD 305490 MD 305491 MD 305492 MD 305493 MD 305494 MD 305495 MD 305496 MD 305497 MD 305498 MD 305499 MD 305500 MD 305501 MD 305502