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 693→
SolPhoDeiTerVenJovSat
1234
567891011
12131415161718
19202122232425
262728
1 Hydra 693 2 Hydra 693 3 Hydra 693 4 Hydra 693 5 Hydra 693 6 Hydra 693 7 Hydra 693 8 Hydra 693 9 Hydra 693 10 Hydra 693 11 Hydra 693 12 Hydra 693 13 Hydra 693 14 Hydra 693 15 Hydra 693 16 Hydra 693 17 Hydra 693 18 Hydra 693 19 Hydra 693 20 Hydra 693 21 Hydra 693 22 Hydra 693 23 Hydra 693 24 Hydra 693 25 Hydra 693 26 Hydra 693 27 Hydra 693 28 Hydra 693 1 Corvus 693 2 November 2914 3 November 2914 4 November 2914 5 November 2914 6 November 2914 7 November 2914 8 November 2914 9 November 2914 10 November 2914 11 November 2914 12 November 2914 13 November 2914 14 November 2914 15 November 2914 16 November 2914 17 November 2914 18 November 2914 19 November 2914 20 November 2914 21 November 2914 22 November 2914 23 November 2914 24 November 2914 25 November 2914 26 November 2914 27 November 2914 28 November 2914 29 November 2914 30 November 2914 1 December 2914
MS 315948 MS 315949 MS 315950 MS 315951 MS 315952 MS 315953 MS 315954 MS 315955 MS 315956 MS 315957 MS 315958 MS 315959 MS 315960 MS 315961 MS 315962 MS 315963 MS 315964 MS 315965 MS 315966 MS 315967 MS 315968 MS 315969 MS 315970 MS 315971 MS 315972 MS 315973 MS 315974 MS 315975 MS 315976 MD 324714 MD 324715 MD 324716 MD 324717 MD 324718 MD 324719 MD 324720 MD 324721 MD 324722 MD 324723 MD 324724 MD 324725 MD 324726 MD 324727 MD 324728 MD 324729 MD 324730 MD 324731 MD 324732 MD 324733 MD 324734 MD 324735 MD 324736 MD 324737 MD 324738 MD 324739 MD 324740 MD 324741 MD 324742 MD 324743