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 1022→
SolPhoDeiTerVenJovSat
123456
78910111213
14151617181920
21222324252627
28
1 Hydra 1022 2 Hydra 1022 3 Hydra 1022 4 Hydra 1022 5 Hydra 1022 6 Hydra 1022 7 Hydra 1022 8 Hydra 1022 9 Hydra 1022 10 Hydra 1022 11 Hydra 1022 12 Hydra 1022 13 Hydra 1022 14 Hydra 1022 15 Hydra 1022 16 Hydra 1022 17 Hydra 1022 18 Hydra 1022 19 Hydra 1022 20 Hydra 1022 21 Hydra 1022 22 Hydra 1022 23 Hydra 1022 24 Hydra 1022 25 Hydra 1022 26 Hydra 1022 27 Hydra 1022 28 Hydra 1022 1 Corvus 1022 25 October 3533 26 October 3533 27 October 3533 28 October 3533 29 October 3533 30 October 3533 31 October 3533 1 November 3533 2 November 3533 3 November 3533 4 November 3533 5 November 3533 6 November 3533 7 November 3533 8 November 3533 9 November 3533 10 November 3533 11 November 3533 12 November 3533 13 November 3533 14 November 3533 15 November 3533 16 November 3533 17 November 3533 18 November 3533 19 November 3533 20 November 3533 21 November 3533 22 November 3533
MS 535914 MS 535915 MS 535916 MS 535917 MS 535918 MS 535919 MS 535920 MS 535921 MS 535922 MS 535923 MS 535924 MS 535925 MS 535926 MS 535927 MS 535928 MS 535929 MS 535930 MS 535931 MS 535932 MS 535933 MS 535934 MS 535935 MS 535936 MS 535937 MS 535938 MS 535939 MS 535940 MS 535941 MS 535942 MD 550791 MD 550792 MD 550793 MD 550794 MD 550795 MD 550796 MD 550797 MD 550798 MD 550799 MD 550800 MD 550801 MD 550802 MD 550803 MD 550804 MD 550805 MD 550806 MD 550807 MD 550808 MD 550809 MD 550810 MD 550811 MD 550812 MD 550813 MD 550814 MD 550815 MD 550816 MD 550817 MD 550818 MD 550819