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 929→
SolPhoDeiTerVenJovSat
12345
6789101112
13141516171819
20212223242526
2728
1 Hydra 929 2 Hydra 929 3 Hydra 929 4 Hydra 929 5 Hydra 929 6 Hydra 929 7 Hydra 929 8 Hydra 929 9 Hydra 929 10 Hydra 929 11 Hydra 929 12 Hydra 929 13 Hydra 929 14 Hydra 929 15 Hydra 929 16 Hydra 929 17 Hydra 929 18 Hydra 929 19 Hydra 929 20 Hydra 929 21 Hydra 929 22 Hydra 929 23 Hydra 929 24 Hydra 929 25 Hydra 929 26 Hydra 929 27 Hydra 929 28 Hydra 929 1 Corvus 929 3 November 3358 4 November 3358 5 November 3358 6 November 3358 7 November 3358 8 November 3358 9 November 3358 10 November 3358 11 November 3358 12 November 3358 13 November 3358 14 November 3358 15 November 3358 16 November 3358 17 November 3358 18 November 3358 19 November 3358 20 November 3358 21 November 3358 22 November 3358 23 November 3358 24 November 3358 25 November 3358 26 November 3358 27 November 3358 28 November 3358 29 November 3358 30 November 3358 1 December 3358 2 December 3358
MS 473734 MS 473735 MS 473736 MS 473737 MS 473738 MS 473739 MS 473740 MS 473741 MS 473742 MS 473743 MS 473744 MS 473745 MS 473746 MS 473747 MS 473748 MS 473749 MS 473750 MS 473751 MS 473752 MS 473753 MS 473754 MS 473755 MS 473756 MS 473757 MS 473758 MS 473759 MS 473760 MS 473761 MS 473762 MD 486883 MD 486884 MD 486885 MD 486886 MD 486887 MD 486888 MD 486889 MD 486890 MD 486891 MD 486892 MD 486893 MD 486894 MD 486895 MD 486896 MD 486897 MD 486898 MD 486899 MD 486900 MD 486901 MD 486902 MD 486903 MD 486904 MD 486905 MD 486906 MD 486907 MD 486908 MD 486909 MD 486910 MD 486911 MD 486912