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 754→
SolPhoDeiTerVenJovSat
12
3456789
10111213141516
17181920212223
2425262728
1 Hydra 754 2 Hydra 754 3 Hydra 754 4 Hydra 754 5 Hydra 754 6 Hydra 754 7 Hydra 754 8 Hydra 754 9 Hydra 754 10 Hydra 754 11 Hydra 754 12 Hydra 754 13 Hydra 754 14 Hydra 754 15 Hydra 754 16 Hydra 754 17 Hydra 754 18 Hydra 754 19 Hydra 754 20 Hydra 754 21 Hydra 754 22 Hydra 754 23 Hydra 754 24 Hydra 754 25 Hydra 754 26 Hydra 754 27 Hydra 754 28 Hydra 754 1 Corvus 754 8 August 3029 9 August 3029 10 August 3029 11 August 3029 12 August 3029 13 August 3029 14 August 3029 15 August 3029 16 August 3029 17 August 3029 18 August 3029 19 August 3029 20 August 3029 21 August 3029 22 August 3029 23 August 3029 24 August 3029 25 August 3029 26 August 3029 27 August 3029 28 August 3029 29 August 3029 30 August 3029 31 August 3029 1 September 3029 2 September 3029 3 September 3029 4 September 3029 5 September 3029 6 September 3029
MS 356732 MS 356733 MS 356734 MS 356735 MS 356736 MS 356737 MS 356738 MS 356739 MS 356740 MS 356741 MS 356742 MS 356743 MS 356744 MS 356745 MS 356746 MS 356747 MS 356748 MS 356749 MS 356750 MS 356751 MS 356752 MS 356753 MS 356754 MS 356755 MS 356756 MS 356757 MS 356758 MS 356759 MS 356760 MD 366631 MD 366632 MD 366633 MD 366634 MD 366635 MD 366636 MD 366637 MD 366638 MD 366639 MD 366640 MD 366641 MD 366642 MD 366643 MD 366644 MD 366645 MD 366646 MD 366647 MD 366648 MD 366649 MD 366650 MD 366651 MD 366652 MD 366653 MD 366654 MD 366655 MD 366656 MD 366657 MD 366658 MD 366659 MD 366660