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 990→
SolPhoDeiTerVenJovSat
12
3456789
10111213141516
17181920212223
2425262728
1 Hydra 990 2 Hydra 990 3 Hydra 990 4 Hydra 990 5 Hydra 990 6 Hydra 990 7 Hydra 990 8 Hydra 990 9 Hydra 990 10 Hydra 990 11 Hydra 990 12 Hydra 990 13 Hydra 990 14 Hydra 990 15 Hydra 990 16 Hydra 990 17 Hydra 990 18 Hydra 990 19 Hydra 990 20 Hydra 990 21 Hydra 990 22 Hydra 990 23 Hydra 990 24 Hydra 990 25 Hydra 990 26 Hydra 990 27 Hydra 990 28 Hydra 990 1 Corvus 990 10 August 3473 11 August 3473 12 August 3473 13 August 3473 14 August 3473 15 August 3473 16 August 3473 17 August 3473 18 August 3473 19 August 3473 20 August 3473 21 August 3473 22 August 3473 23 August 3473 24 August 3473 25 August 3473 26 August 3473 27 August 3473 28 August 3473 29 August 3473 30 August 3473 31 August 3473 1 September 3473 2 September 3473 3 September 3473 4 September 3473 5 September 3473 6 September 3473 7 September 3473 8 September 3473
MS 514519 MS 514520 MS 514521 MS 514522 MS 514523 MS 514524 MS 514525 MS 514526 MS 514527 MS 514528 MS 514529 MS 514530 MS 514531 MS 514532 MS 514533 MS 514534 MS 514535 MS 514536 MS 514537 MS 514538 MS 514539 MS 514540 MS 514541 MS 514542 MS 514543 MS 514544 MS 514545 MS 514546 MS 514547 MD 528801 MD 528802 MD 528803 MD 528804 MD 528805 MD 528806 MD 528807 MD 528808 MD 528809 MD 528810 MD 528811 MD 528812 MD 528813 MD 528814 MD 528815 MD 528816 MD 528817 MD 528818 MD 528819 MD 528820 MD 528821 MD 528822 MD 528823 MD 528824 MD 528825 MD 528826 MD 528827 MD 528828 MD 528829 MD 528830