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 888→
SolPhoDeiTerVenJovSat
1234
567891011
12131415161718
19202122232425
262728
1 Hydra 888 2 Hydra 888 3 Hydra 888 4 Hydra 888 5 Hydra 888 6 Hydra 888 7 Hydra 888 8 Hydra 888 9 Hydra 888 10 Hydra 888 11 Hydra 888 12 Hydra 888 13 Hydra 888 14 Hydra 888 15 Hydra 888 16 Hydra 888 17 Hydra 888 18 Hydra 888 19 Hydra 888 20 Hydra 888 21 Hydra 888 22 Hydra 888 23 Hydra 888 24 Hydra 888 25 Hydra 888 26 Hydra 888 27 Hydra 888 28 Hydra 888 1 Corvus 888 15 September 3281 16 September 3281 17 September 3281 18 September 3281 19 September 3281 20 September 3281 21 September 3281 22 September 3281 23 September 3281 24 September 3281 25 September 3281 26 September 3281 27 September 3281 28 September 3281 29 September 3281 30 September 3281 1 October 3281 2 October 3281 3 October 3281 4 October 3281 5 October 3281 6 October 3281 7 October 3281 8 October 3281 9 October 3281 10 October 3281 11 October 3281 12 October 3281 13 October 3281 14 October 3281
MS 446323 MS 446324 MS 446325 MS 446326 MS 446327 MS 446328 MS 446329 MS 446330 MS 446331 MS 446332 MS 446333 MS 446334 MS 446335 MS 446336 MS 446337 MS 446338 MS 446339 MS 446340 MS 446341 MS 446342 MS 446343 MS 446344 MS 446345 MS 446346 MS 446347 MS 446348 MS 446349 MS 446350 MS 446351 MD 458711 MD 458712 MD 458713 MD 458714 MD 458715 MD 458716 MD 458717 MD 458718 MD 458719 MD 458720 MD 458721 MD 458722 MD 458723 MD 458724 MD 458725 MD 458726 MD 458727 MD 458728 MD 458729 MD 458730 MD 458731 MD 458732 MD 458733 MD 458734 MD 458735 MD 458736 MD 458737 MD 458738 MD 458739 MD 458740