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 242→
SolPhoDeiTerVenJovSat
123456
78910111213
14151617181920
21222324252627
28
1 Hydra 242 2 Hydra 242 3 Hydra 242 4 Hydra 242 5 Hydra 242 6 Hydra 242 7 Hydra 242 8 Hydra 242 9 Hydra 242 10 Hydra 242 11 Hydra 242 12 Hydra 242 13 Hydra 242 14 Hydra 242 15 Hydra 242 16 Hydra 242 17 Hydra 242 18 Hydra 242 19 Hydra 242 20 Hydra 242 21 Hydra 242 22 Hydra 242 23 Hydra 242 24 Hydra 242 25 Hydra 242 26 Hydra 242 27 Hydra 242 28 Hydra 242 1 Corvus 242 1 May 2066 2 May 2066 3 May 2066 4 May 2066 5 May 2066 6 May 2066 7 May 2066 8 May 2066 9 May 2066 10 May 2066 11 May 2066 12 May 2066 13 May 2066 14 May 2066 15 May 2066 16 May 2066 17 May 2066 18 May 2066 19 May 2066 20 May 2066 21 May 2066 22 May 2066 23 May 2066 24 May 2066 25 May 2066 26 May 2066 27 May 2066 28 May 2066 29 May 2066 30 May 2066
MS 14414 MS 14415 MS 14416 MS 14417 MS 14418 MS 14419 MS 14420 MS 14421 MS 14422 MS 14423 MS 14424 MS 14425 MS 14426 MS 14427 MS 14428 MS 14429 MS 14430 MS 14431 MS 14432 MS 14433 MS 14434 MS 14435 MS 14436 MS 14437 MS 14438 MS 14439 MS 14440 MS 14441 MS 14442 MD 14804 MD 14805 MD 14806 MD 14807 MD 14808 MD 14809 MD 14810 MD 14811 MD 14812 MD 14813 MD 14814 MD 14815 MD 14816 MD 14817 MD 14818 MD 14819 MD 14820 MD 14821 MD 14822 MD 14823 MD 14824 MD 14825 MD 14826 MD 14827 MD 14828 MD 14829 MD 14830 MD 14831 MD 14832 MD 14833