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 579→
SolPhoDeiTerVenJovSat
1
2345678
9101112131415
16171819202122
232425262728
1 Hydra 579 2 Hydra 579 3 Hydra 579 4 Hydra 579 5 Hydra 579 6 Hydra 579 7 Hydra 579 8 Hydra 579 9 Hydra 579 10 Hydra 579 11 Hydra 579 12 Hydra 579 13 Hydra 579 14 Hydra 579 15 Hydra 579 16 Hydra 579 17 Hydra 579 18 Hydra 579 19 Hydra 579 20 Hydra 579 21 Hydra 579 22 Hydra 579 23 Hydra 579 24 Hydra 579 25 Hydra 579 26 Hydra 579 27 Hydra 579 28 Hydra 579 1 Corvus 579 11 May 2700 12 May 2700 13 May 2700 14 May 2700 15 May 2700 16 May 2700 17 May 2700 18 May 2700 19 May 2700 20 May 2700 21 May 2700 22 May 2700 23 May 2700 24 May 2700 25 May 2700 26 May 2700 27 May 2700 28 May 2700 29 May 2700 30 May 2700 31 May 2700 1 June 2700 2 June 2700 3 June 2700 4 June 2700 5 June 2700 6 June 2700 7 June 2700 8 June 2700 9 June 2700
MS 239728 MS 239729 MS 239730 MS 239731 MS 239732 MS 239733 MS 239734 MS 239735 MS 239736 MS 239737 MS 239738 MS 239739 MS 239740 MS 239741 MS 239742 MS 239743 MS 239744 MS 239745 MS 239746 MS 239747 MS 239748 MS 239749 MS 239750 MS 239751 MS 239752 MS 239753 MS 239754 MS 239755 MS 239756 MD 246377 MD 246378 MD 246379 MD 246380 MD 246381 MD 246382 MD 246383 MD 246384 MD 246385 MD 246386 MD 246387 MD 246388 MD 246389 MD 246390 MD 246391 MD 246392 MD 246393 MD 246394 MD 246395 MD 246396 MD 246397 MD 246398 MD 246399 MD 246400 MD 246401 MD 246402 MD 246403 MD 246404 MD 246405 MD 246406