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 1376→
SolPhoDeiTerVenJovSat
12
3456789
10111213141516
17181920212223
2425262728
1 Hydra 1376 2 Hydra 1376 3 Hydra 1376 4 Hydra 1376 5 Hydra 1376 6 Hydra 1376 7 Hydra 1376 8 Hydra 1376 9 Hydra 1376 10 Hydra 1376 11 Hydra 1376 12 Hydra 1376 13 Hydra 1376 14 Hydra 1376 15 Hydra 1376 16 Hydra 1376 17 Hydra 1376 18 Hydra 1376 19 Hydra 1376 20 Hydra 1376 21 Hydra 1376 22 Hydra 1376 23 Hydra 1376 24 Hydra 1376 25 Hydra 1376 26 Hydra 1376 27 Hydra 1376 28 Hydra 1376 1 Corvus 1376 28 October 4199 29 October 4199 30 October 4199 31 October 4199 1 November 4199 2 November 4199 3 November 4199 4 November 4199 5 November 4199 6 November 4199 7 November 4199 8 November 4199 9 November 4199 10 November 4199 11 November 4199 12 November 4199 13 November 4199 14 November 4199 15 November 4199 16 November 4199 17 November 4199 18 November 4199 19 November 4199 20 November 4199 21 November 4199 22 November 4199 23 November 4199 24 November 4199 25 November 4199 26 November 4199
MS 772595 MS 772596 MS 772597 MS 772598 MS 772599 MS 772600 MS 772601 MS 772602 MS 772603 MS 772604 MS 772605 MS 772606 MS 772607 MS 772608 MS 772609 MS 772610 MS 772611 MS 772612 MS 772613 MS 772614 MS 772615 MS 772616 MS 772617 MS 772618 MS 772619 MS 772620 MS 772621 MS 772622 MS 772623 MD 794046 MD 794047 MD 794048 MD 794049 MD 794050 MD 794051 MD 794052 MD 794053 MD 794054 MD 794055 MD 794056 MD 794057 MD 794058 MD 794059 MD 794060 MD 794061 MD 794062 MD 794063 MD 794064 MD 794065 MD 794066 MD 794067 MD 794068 MD 794069 MD 794070 MD 794071 MD 794072 MD 794073 MD 794074 MD 794075