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 679→
SolPhoDeiTerVenJovSat
123456
78910111213
14151617181920
21222324252627
28
1 Hydra 679 2 Hydra 679 3 Hydra 679 4 Hydra 679 5 Hydra 679 6 Hydra 679 7 Hydra 679 8 Hydra 679 9 Hydra 679 10 Hydra 679 11 Hydra 679 12 Hydra 679 13 Hydra 679 14 Hydra 679 15 Hydra 679 16 Hydra 679 17 Hydra 679 18 Hydra 679 19 Hydra 679 20 Hydra 679 21 Hydra 679 22 Hydra 679 23 Hydra 679 24 Hydra 679 25 Hydra 679 26 Hydra 679 27 Hydra 679 28 Hydra 679 1 Corvus 679 29 June 2888 30 June 2888 1 July 2888 2 July 2888 3 July 2888 4 July 2888 5 July 2888 6 July 2888 7 July 2888 8 July 2888 9 July 2888 10 July 2888 11 July 2888 12 July 2888 13 July 2888 14 July 2888 15 July 2888 16 July 2888 17 July 2888 18 July 2888 19 July 2888 20 July 2888 21 July 2888 22 July 2888 23 July 2888 24 July 2888 25 July 2888 26 July 2888 27 July 2888 28 July 2888
MS 306587 MS 306588 MS 306589 MS 306590 MS 306591 MS 306592 MS 306593 MS 306594 MS 306595 MS 306596 MS 306597 MS 306598 MS 306599 MS 306600 MS 306601 MS 306602 MS 306603 MS 306604 MS 306605 MS 306606 MS 306607 MS 306608 MS 306609 MS 306610 MS 306611 MS 306612 MS 306613 MS 306614 MS 306615 MD 315093 MD 315094 MD 315095 MD 315096 MD 315097 MD 315098 MD 315099 MD 315100 MD 315101 MD 315102 MD 315103 MD 315104 MD 315105 MD 315106 MD 315107 MD 315108 MD 315109 MD 315110 MD 315111 MD 315112 MD 315113 MD 315114 MD 315115 MD 315116 MD 315117 MD 315118 MD 315119 MD 315120 MD 315121 MD 315122