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 1049→
SolPhoDeiTerVenJovSat
1
2345678
9101112131415
16171819202122
232425262728
1 Hydra 1049 2 Hydra 1049 3 Hydra 1049 4 Hydra 1049 5 Hydra 1049 6 Hydra 1049 7 Hydra 1049 8 Hydra 1049 9 Hydra 1049 10 Hydra 1049 11 Hydra 1049 12 Hydra 1049 13 Hydra 1049 14 Hydra 1049 15 Hydra 1049 16 Hydra 1049 17 Hydra 1049 18 Hydra 1049 19 Hydra 1049 20 Hydra 1049 21 Hydra 1049 22 Hydra 1049 23 Hydra 1049 24 Hydra 1049 25 Hydra 1049 26 Hydra 1049 27 Hydra 1049 28 Hydra 1049 1 Corvus 1049 10 August 3584 11 August 3584 12 August 3584 13 August 3584 14 August 3584 15 August 3584 16 August 3584 17 August 3584 18 August 3584 19 August 3584 20 August 3584 21 August 3584 22 August 3584 23 August 3584 24 August 3584 25 August 3584 26 August 3584 27 August 3584 28 August 3584 29 August 3584 30 August 3584 31 August 3584 1 September 3584 2 September 3584 3 September 3584 4 September 3584 5 September 3584 6 September 3584 7 September 3584 8 September 3584
MS 553965 MS 553966 MS 553967 MS 553968 MS 553969 MS 553970 MS 553971 MS 553972 MS 553973 MS 553974 MS 553975 MS 553976 MS 553977 MS 553978 MS 553979 MS 553980 MS 553981 MS 553982 MS 553983 MS 553984 MS 553985 MS 553986 MS 553987 MS 553988 MS 553989 MS 553990 MS 553991 MS 553992 MS 553993 MD 569343 MD 569344 MD 569345 MD 569346 MD 569347 MD 569348 MD 569349 MD 569350 MD 569351 MD 569352 MD 569353 MD 569354 MD 569355 MD 569356 MD 569357 MD 569358 MD 569359 MD 569360 MD 569361 MD 569362 MD 569363 MD 569364 MD 569365 MD 569366 MD 569367 MD 569368 MD 569369 MD 569370 MD 569371 MD 569372